/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 [2022-03-03 18:39:43,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 18:39:43,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 18:39:43,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-03 18:39:43,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 18:39:43,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 18:39:43,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 18:39:43,156 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 [2022-03-03 18:39:43,190 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 18:39:43,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 18:39:43,191 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 18:39:43,191 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 18:39:43,193 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 18:39:43,193 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 18:39:43,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 18:39:43,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 18:39:43,194 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 18:39:43,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 18:39:43,195 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 18:39:43,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 18:39:43,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 18:39:43,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 18:39:43,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 18:39:43,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 18:39:43,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 18:39:43,196 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 18:39:43,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 18:39:43,196 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 18:39:43,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 18:39:43,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 18:39:43,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 18:39:43,197 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 18:39:43,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 18:39:43,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:39:43,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 18:39:43,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 18:39:43,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 18:39:43,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 18:39:43,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 18:39:43,198 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 18:39:43,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 18:39:43,199 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 18:39:43,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 18:39:43,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 18:39:43,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 18:39:43,427 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-03 18:39:43,431 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-03 18:39:43,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_6.bpl [2022-03-03 18:39:43,433 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_6.bpl' [2022-03-03 18:39:43,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 18:39:43,456 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-03 18:39:43,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 18:39:43,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 18:39:43,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 18:39:43,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:43" (1/1) ... [2022-03-03 18:39:43,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:43" (1/1) ... [2022-03-03 18:39:43,480 INFO L137 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-03 18:39:43,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 18:39:43,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 18:39:43,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 18:39:43,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 18:39:43,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:43" (1/1) ... [2022-03-03 18:39:43,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:43" (1/1) ... [2022-03-03 18:39:43,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:43" (1/1) ... [2022-03-03 18:39:43,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:43" (1/1) ... [2022-03-03 18:39:43,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:43" (1/1) ... [2022-03-03 18:39:43,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:43" (1/1) ... [2022-03-03 18:39:43,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:43" (1/1) ... [2022-03-03 18:39:43,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 18:39:43,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 18:39:43,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 18:39:43,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 18:39:43,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:43" (1/1) ... [2022-03-03 18:39:43,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:39:43,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:39:43,535 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) [2022-03-03 18:39:43,543 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 [2022-03-03 18:39:43,578 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2022-03-03 18:39:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2022-03-03 18:39:43,579 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2022-03-03 18:39:43,579 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2022-03-03 18:39:43,579 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2022-03-03 18:39:43,579 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2022-03-03 18:39:43,579 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2022-03-03 18:39:43,579 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2022-03-03 18:39:43,579 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2022-03-03 18:39:43,579 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2022-03-03 18:39:43,580 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2022-03-03 18:39:43,580 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2022-03-03 18:39:43,581 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2022-03-03 18:39:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2022-03-03 18:39:43,581 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2022-03-03 18:39:43,582 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-03 18:39:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 18:39:43,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 18:39:43,583 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2022-03-03 18:39:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2022-03-03 18:39:43,583 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2022-03-03 18:39:43,584 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 18:39:43,622 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 18:39:43,624 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 18:39:43,675 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 18:39:43,680 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 18:39:43,681 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-03 18:39:43,682 INFO L202 PluginConnector]: Adding new model example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:39:43 BoogieIcfgContainer [2022-03-03 18:39:43,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 18:39:43,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 18:39:43,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 18:39:43,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 18:39:43,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:43" (1/2) ... [2022-03-03 18:39:43,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd59878 and model type example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:39:43, skipping insertion in model container [2022-03-03 18:39:43,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:39:43" (2/2) ... [2022-03-03 18:39:43,689 INFO L111 eAbstractionObserver]: Analyzing ICFG example_6.bpl [2022-03-03 18:39:43,693 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 18:39:43,693 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 18:39:43,693 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 18:39:43,693 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 18:39:43,732 INFO L148 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2022-03-03 18:39:43,766 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 18:39:43,771 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 [2022-03-03 18:39:43,772 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-03-03 18:39:43,783 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 63 transitions, 264 flow [2022-03-03 18:39:44,150 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) [2022-03-03 18:39:44,170 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) [2022-03-03 18:39:44,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:44,214 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:44,214 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] [2022-03-03 18:39:44,215 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:44,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:44,223 INFO L85 PathProgramCache]: Analyzing trace with hash 880898761, now seen corresponding path program 1 times [2022-03-03 18:39:44,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:44,231 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600103697] [2022-03-03 18:39:44,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:44,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:44,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:44,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:44,434 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600103697] [2022-03-03 18:39:44,435 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600103697] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:44,435 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:44,435 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:39:44,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126469634] [2022-03-03 18:39:44,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:44,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:39:44,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:44,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:39:44,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:39:44,518 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) [2022-03-03 18:39:44,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:44,713 INFO L93 Difference]: Finished difference Result 3543 states and 15328 transitions. [2022-03-03 18:39:44,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:39:44,716 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 [2022-03-03 18:39:44,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:44,802 INFO L225 Difference]: With dead ends: 3543 [2022-03-03 18:39:44,802 INFO L226 Difference]: Without dead ends: 3543 [2022-03-03 18:39:44,815 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 [2022-03-03 18:39:44,824 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 41 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:44,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 25 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:39:44,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2022-03-03 18:39:45,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3543. [2022-03-03 18:39:45,078 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) [2022-03-03 18:39:45,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3543 states to 3543 states and 15328 transitions. [2022-03-03 18:39:45,105 INFO L78 Accepts]: Start accepts. Automaton has 3543 states and 15328 transitions. Word has length 25 [2022-03-03 18:39:45,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:45,107 INFO L470 AbstractCegarLoop]: Abstraction has 3543 states and 15328 transitions. [2022-03-03 18:39:45,107 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) [2022-03-03 18:39:45,108 INFO L276 IsEmpty]: Start isEmpty. Operand 3543 states and 15328 transitions. [2022-03-03 18:39:45,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:45,122 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:45,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:45,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 18:39:45,124 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:45,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:45,127 INFO L85 PathProgramCache]: Analyzing trace with hash -203118425, now seen corresponding path program 1 times [2022-03-03 18:39:45,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:45,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167689203] [2022-03-03 18:39:45,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:45,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:45,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:45,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:45,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167689203] [2022-03-03 18:39:45,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167689203] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:45,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:45,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:39:45,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263563995] [2022-03-03 18:39:45,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:45,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:39:45,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:45,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:39:45,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:39:45,183 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) [2022-03-03 18:39:45,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:45,360 INFO L93 Difference]: Finished difference Result 2976 states and 12439 transitions. [2022-03-03 18:39:45,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:39:45,361 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 [2022-03-03 18:39:45,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:45,414 INFO L225 Difference]: With dead ends: 2976 [2022-03-03 18:39:45,414 INFO L226 Difference]: Without dead ends: 2976 [2022-03-03 18:39:45,414 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 [2022-03-03 18:39:45,416 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 37 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:45,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 21 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:39:45,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2022-03-03 18:39:45,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 2976. [2022-03-03 18:39:45,579 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) [2022-03-03 18:39:45,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 12439 transitions. [2022-03-03 18:39:45,597 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 12439 transitions. Word has length 25 [2022-03-03 18:39:45,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:45,598 INFO L470 AbstractCegarLoop]: Abstraction has 2976 states and 12439 transitions. [2022-03-03 18:39:45,598 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) [2022-03-03 18:39:45,598 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 12439 transitions. [2022-03-03 18:39:45,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:45,609 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:45,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:45,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 18:39:45,610 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:45,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:45,610 INFO L85 PathProgramCache]: Analyzing trace with hash 872033107, now seen corresponding path program 1 times [2022-03-03 18:39:45,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:45,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162074580] [2022-03-03 18:39:45,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:45,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:45,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:45,635 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:45,635 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162074580] [2022-03-03 18:39:45,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162074580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:45,636 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:45,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:39:45,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650394528] [2022-03-03 18:39:45,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:45,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:39:45,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:45,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:39:45,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:39:45,637 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) [2022-03-03 18:39:45,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:45,693 INFO L93 Difference]: Finished difference Result 2238 states and 9226 transitions. [2022-03-03 18:39:45,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:39:45,693 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 [2022-03-03 18:39:45,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:45,710 INFO L225 Difference]: With dead ends: 2238 [2022-03-03 18:39:45,710 INFO L226 Difference]: Without dead ends: 2238 [2022-03-03 18:39:45,711 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 [2022-03-03 18:39:45,712 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 [2022-03-03 18:39:45,712 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] [2022-03-03 18:39:45,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2238 states. [2022-03-03 18:39:45,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2238 to 2238. [2022-03-03 18:39:45,824 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) [2022-03-03 18:39:45,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2238 states to 2238 states and 9226 transitions. [2022-03-03 18:39:45,834 INFO L78 Accepts]: Start accepts. Automaton has 2238 states and 9226 transitions. Word has length 25 [2022-03-03 18:39:45,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:45,835 INFO L470 AbstractCegarLoop]: Abstraction has 2238 states and 9226 transitions. [2022-03-03 18:39:45,835 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) [2022-03-03 18:39:45,835 INFO L276 IsEmpty]: Start isEmpty. Operand 2238 states and 9226 transitions. [2022-03-03 18:39:45,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:45,842 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:45,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:45,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 18:39:45,843 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:45,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:45,843 INFO L85 PathProgramCache]: Analyzing trace with hash 296100981, now seen corresponding path program 1 times [2022-03-03 18:39:45,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:45,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092149850] [2022-03-03 18:39:45,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:45,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:45,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:45,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:45,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092149850] [2022-03-03 18:39:45,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092149850] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:45,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:45,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:39:45,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511815161] [2022-03-03 18:39:45,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:45,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:39:45,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:45,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:39:45,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:39:45,866 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) [2022-03-03 18:39:45,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:45,896 INFO L93 Difference]: Finished difference Result 1701 states and 6967 transitions. [2022-03-03 18:39:45,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:39:45,897 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 [2022-03-03 18:39:45,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:45,908 INFO L225 Difference]: With dead ends: 1701 [2022-03-03 18:39:45,909 INFO L226 Difference]: Without dead ends: 1701 [2022-03-03 18:39:45,909 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 [2022-03-03 18:39:45,910 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 [2022-03-03 18:39:45,910 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] [2022-03-03 18:39:45,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2022-03-03 18:39:45,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1701. [2022-03-03 18:39:45,952 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) [2022-03-03 18:39:45,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 6967 transitions. [2022-03-03 18:39:45,959 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 6967 transitions. Word has length 25 [2022-03-03 18:39:45,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:45,960 INFO L470 AbstractCegarLoop]: Abstraction has 1701 states and 6967 transitions. [2022-03-03 18:39:45,960 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) [2022-03-03 18:39:45,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 6967 transitions. [2022-03-03 18:39:46,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:46,000 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:46,001 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] [2022-03-03 18:39:46,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 18:39:46,002 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:46,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:46,002 INFO L85 PathProgramCache]: Analyzing trace with hash -540031151, now seen corresponding path program 1 times [2022-03-03 18:39:46,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:46,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624553033] [2022-03-03 18:39:46,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:46,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:46,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:46,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:46,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624553033] [2022-03-03 18:39:46,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624553033] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:46,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:46,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:39:46,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591784764] [2022-03-03 18:39:46,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:46,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:39:46,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:46,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:39:46,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:39:46,042 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) [2022-03-03 18:39:46,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:46,082 INFO L93 Difference]: Finished difference Result 1458 states and 5833 transitions. [2022-03-03 18:39:46,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:39:46,083 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 [2022-03-03 18:39:46,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:46,093 INFO L225 Difference]: With dead ends: 1458 [2022-03-03 18:39:46,093 INFO L226 Difference]: Without dead ends: 1458 [2022-03-03 18:39:46,093 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 [2022-03-03 18:39:46,094 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 [2022-03-03 18:39:46,095 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] [2022-03-03 18:39:46,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2022-03-03 18:39:46,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1458. [2022-03-03 18:39:46,139 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) [2022-03-03 18:39:46,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5833 transitions. [2022-03-03 18:39:46,150 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5833 transitions. Word has length 25 [2022-03-03 18:39:46,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:46,150 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5833 transitions. [2022-03-03 18:39:46,150 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) [2022-03-03 18:39:46,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5833 transitions. [2022-03-03 18:39:46,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:46,155 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:46,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:46,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 18:39:46,157 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:46,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:46,158 INFO L85 PathProgramCache]: Analyzing trace with hash 377713333, now seen corresponding path program 1 times [2022-03-03 18:39:46,161 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:46,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548377602] [2022-03-03 18:39:46,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:46,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:46,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:46,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:46,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548377602] [2022-03-03 18:39:46,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548377602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:46,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:46,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:46,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549693840] [2022-03-03 18:39:46,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:46,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:46,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:46,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:46,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:46,456 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) [2022-03-03 18:39:46,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:46,645 INFO L93 Difference]: Finished difference Result 3167 states and 11759 transitions. [2022-03-03 18:39:46,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:46,646 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:46,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:46,673 INFO L225 Difference]: With dead ends: 3167 [2022-03-03 18:39:46,673 INFO L226 Difference]: Without dead ends: 3008 [2022-03-03 18:39:46,673 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 [2022-03-03 18:39:46,674 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 [2022-03-03 18:39:46,675 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] [2022-03-03 18:39:46,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2022-03-03 18:39:46,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 1530. [2022-03-03 18:39:46,748 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) [2022-03-03 18:39:46,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 6113 transitions. [2022-03-03 18:39:46,754 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 6113 transitions. Word has length 25 [2022-03-03 18:39:46,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:46,755 INFO L470 AbstractCegarLoop]: Abstraction has 1530 states and 6113 transitions. [2022-03-03 18:39:46,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:46,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 6113 transitions. [2022-03-03 18:39:46,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:46,760 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:46,760 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] [2022-03-03 18:39:46,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-03 18:39:46,760 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:46,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:46,761 INFO L85 PathProgramCache]: Analyzing trace with hash -630584651, now seen corresponding path program 2 times [2022-03-03 18:39:46,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:46,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514389228] [2022-03-03 18:39:46,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:46,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:46,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:46,979 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:46,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514389228] [2022-03-03 18:39:46,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514389228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:46,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:46,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:46,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409303700] [2022-03-03 18:39:46,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:46,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:46,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:46,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:46,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:46,980 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) [2022-03-03 18:39:47,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:47,160 INFO L93 Difference]: Finished difference Result 3230 states and 11966 transitions. [2022-03-03 18:39:47,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:47,161 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 [2022-03-03 18:39:47,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:47,173 INFO L225 Difference]: With dead ends: 3230 [2022-03-03 18:39:47,173 INFO L226 Difference]: Without dead ends: 2976 [2022-03-03 18:39:47,174 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 [2022-03-03 18:39:47,178 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 [2022-03-03 18:39:47,179 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] [2022-03-03 18:39:47,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2022-03-03 18:39:47,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 1498. [2022-03-03 18:39:47,234 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) [2022-03-03 18:39:47,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5985 transitions. [2022-03-03 18:39:47,239 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5985 transitions. Word has length 25 [2022-03-03 18:39:47,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:47,239 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5985 transitions. [2022-03-03 18:39:47,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:47,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5985 transitions. [2022-03-03 18:39:47,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:47,244 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:47,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:47,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-03 18:39:47,245 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:47,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:47,245 INFO L85 PathProgramCache]: Analyzing trace with hash 416328017, now seen corresponding path program 3 times [2022-03-03 18:39:47,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:47,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901450592] [2022-03-03 18:39:47,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:47,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:47,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:47,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:47,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901450592] [2022-03-03 18:39:47,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901450592] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:47,491 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:47,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:47,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286114028] [2022-03-03 18:39:47,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:47,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:47,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:47,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:47,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:47,493 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) [2022-03-03 18:39:47,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:47,662 INFO L93 Difference]: Finished difference Result 3118 states and 11565 transitions. [2022-03-03 18:39:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:47,663 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 [2022-03-03 18:39:47,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:47,675 INFO L225 Difference]: With dead ends: 3118 [2022-03-03 18:39:47,676 INFO L226 Difference]: Without dead ends: 2959 [2022-03-03 18:39:47,676 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 [2022-03-03 18:39:47,677 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 [2022-03-03 18:39:47,677 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] [2022-03-03 18:39:47,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2022-03-03 18:39:47,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 1514. [2022-03-03 18:39:47,736 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) [2022-03-03 18:39:47,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 6033 transitions. [2022-03-03 18:39:47,742 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 6033 transitions. Word has length 25 [2022-03-03 18:39:47,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:47,742 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 6033 transitions. [2022-03-03 18:39:47,743 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) [2022-03-03 18:39:47,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 6033 transitions. [2022-03-03 18:39:47,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:47,747 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:47,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:47,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-03 18:39:47,751 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:47,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:47,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1173606733, now seen corresponding path program 4 times [2022-03-03 18:39:47,752 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:47,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175873892] [2022-03-03 18:39:47,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:47,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:47,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:47,983 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:47,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175873892] [2022-03-03 18:39:47,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175873892] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:47,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:47,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:47,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650694316] [2022-03-03 18:39:47,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:47,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:47,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:47,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:47,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:47,985 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) [2022-03-03 18:39:48,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:48,209 INFO L93 Difference]: Finished difference Result 3148 states and 11658 transitions. [2022-03-03 18:39:48,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:48,210 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 [2022-03-03 18:39:48,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:48,224 INFO L225 Difference]: With dead ends: 3148 [2022-03-03 18:39:48,224 INFO L226 Difference]: Without dead ends: 2943 [2022-03-03 18:39:48,225 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 [2022-03-03 18:39:48,225 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 [2022-03-03 18:39:48,226 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] [2022-03-03 18:39:48,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2943 states. [2022-03-03 18:39:48,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2943 to 1498. [2022-03-03 18:39:48,280 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) [2022-03-03 18:39:48,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5977 transitions. [2022-03-03 18:39:48,287 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5977 transitions. Word has length 25 [2022-03-03 18:39:48,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:48,287 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5977 transitions. [2022-03-03 18:39:48,288 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) [2022-03-03 18:39:48,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5977 transitions. [2022-03-03 18:39:48,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:48,294 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:48,294 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] [2022-03-03 18:39:48,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-03 18:39:48,295 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:48,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:48,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1811770219, now seen corresponding path program 5 times [2022-03-03 18:39:48,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:48,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297849334] [2022-03-03 18:39:48,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:48,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:48,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:48,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:48,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297849334] [2022-03-03 18:39:48,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297849334] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:48,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:48,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:48,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569286227] [2022-03-03 18:39:48,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:48,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:48,486 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:48,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:48,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:48,487 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) [2022-03-03 18:39:48,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:48,659 INFO L93 Difference]: Finished difference Result 3258 states and 12063 transitions. [2022-03-03 18:39:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:48,660 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:48,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:48,673 INFO L225 Difference]: With dead ends: 3258 [2022-03-03 18:39:48,673 INFO L226 Difference]: Without dead ends: 3069 [2022-03-03 18:39:48,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:48,674 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 [2022-03-03 18:39:48,674 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] [2022-03-03 18:39:48,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2022-03-03 18:39:48,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 1561. [2022-03-03 18:39:48,731 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) [2022-03-03 18:39:48,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 6184 transitions. [2022-03-03 18:39:48,737 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 6184 transitions. Word has length 25 [2022-03-03 18:39:48,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:48,738 INFO L470 AbstractCegarLoop]: Abstraction has 1561 states and 6184 transitions. [2022-03-03 18:39:48,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:48,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 6184 transitions. [2022-03-03 18:39:48,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:48,742 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:48,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:48,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-03 18:39:48,743 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:48,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:48,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1513717261, now seen corresponding path program 6 times [2022-03-03 18:39:48,743 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:48,743 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629591373] [2022-03-03 18:39:48,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:48,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:48,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:48,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:48,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629591373] [2022-03-03 18:39:48,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629591373] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:48,921 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:48,921 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:48,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326625027] [2022-03-03 18:39:48,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:48,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:48,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:48,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:48,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:48,922 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) [2022-03-03 18:39:49,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:49,081 INFO L93 Difference]: Finished difference Result 3291 states and 12146 transitions. [2022-03-03 18:39:49,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:49,082 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:49,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:49,095 INFO L225 Difference]: With dead ends: 3291 [2022-03-03 18:39:49,095 INFO L226 Difference]: Without dead ends: 2982 [2022-03-03 18:39:49,096 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 [2022-03-03 18:39:49,096 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 [2022-03-03 18:39:49,097 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] [2022-03-03 18:39:49,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2022-03-03 18:39:49,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 1474. [2022-03-03 18:39:49,154 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) [2022-03-03 18:39:49,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5889 transitions. [2022-03-03 18:39:49,160 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5889 transitions. Word has length 25 [2022-03-03 18:39:49,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:49,160 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5889 transitions. [2022-03-03 18:39:49,160 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) [2022-03-03 18:39:49,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5889 transitions. [2022-03-03 18:39:49,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:49,164 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:49,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:49,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-03 18:39:49,165 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:49,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:49,165 INFO L85 PathProgramCache]: Analyzing trace with hash 2045589173, now seen corresponding path program 7 times [2022-03-03 18:39:49,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:49,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444267218] [2022-03-03 18:39:49,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:49,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:49,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:49,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:49,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444267218] [2022-03-03 18:39:49,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444267218] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:49,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:49,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:49,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980635965] [2022-03-03 18:39:49,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:49,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:49,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:49,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:49,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:49,335 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) [2022-03-03 18:39:49,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:49,475 INFO L93 Difference]: Finished difference Result 3140 states and 11663 transitions. [2022-03-03 18:39:49,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:49,478 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 [2022-03-03 18:39:49,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:49,490 INFO L225 Difference]: With dead ends: 3140 [2022-03-03 18:39:49,490 INFO L226 Difference]: Without dead ends: 2981 [2022-03-03 18:39:49,490 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 [2022-03-03 18:39:49,491 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 [2022-03-03 18:39:49,491 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] [2022-03-03 18:39:49,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2022-03-03 18:39:49,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 1522. [2022-03-03 18:39:49,541 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) [2022-03-03 18:39:49,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 6073 transitions. [2022-03-03 18:39:49,547 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 6073 transitions. Word has length 25 [2022-03-03 18:39:49,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:49,548 INFO L470 AbstractCegarLoop]: Abstraction has 1522 states and 6073 transitions. [2022-03-03 18:39:49,548 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) [2022-03-03 18:39:49,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 6073 transitions. [2022-03-03 18:39:49,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:49,552 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:49,552 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] [2022-03-03 18:39:49,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-03 18:39:49,552 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:49,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:49,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1037291189, now seen corresponding path program 8 times [2022-03-03 18:39:49,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:49,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160052476] [2022-03-03 18:39:49,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:49,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:49,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:49,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:49,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160052476] [2022-03-03 18:39:49,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160052476] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:49,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:49,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:49,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487348261] [2022-03-03 18:39:49,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:49,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:49,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:49,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:49,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:49,739 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) [2022-03-03 18:39:49,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:49,895 INFO L93 Difference]: Finished difference Result 3203 states and 11870 transitions. [2022-03-03 18:39:49,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:49,896 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 [2022-03-03 18:39:49,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:49,905 INFO L225 Difference]: With dead ends: 3203 [2022-03-03 18:39:49,905 INFO L226 Difference]: Without dead ends: 2949 [2022-03-03 18:39:49,905 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 [2022-03-03 18:39:49,906 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 [2022-03-03 18:39:49,906 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] [2022-03-03 18:39:49,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2022-03-03 18:39:49,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 1490. [2022-03-03 18:39:49,950 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) [2022-03-03 18:39:49,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 5945 transitions. [2022-03-03 18:39:49,956 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 5945 transitions. Word has length 25 [2022-03-03 18:39:49,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:49,956 INFO L470 AbstractCegarLoop]: Abstraction has 1490 states and 5945 transitions. [2022-03-03 18:39:49,956 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) [2022-03-03 18:39:49,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 5945 transitions. [2022-03-03 18:39:49,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:49,960 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:49,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:49,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-03 18:39:49,960 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:49,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:49,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1260344617, now seen corresponding path program 9 times [2022-03-03 18:39:49,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:49,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122658075] [2022-03-03 18:39:49,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:49,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:50,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:50,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:50,124 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122658075] [2022-03-03 18:39:50,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122658075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:50,124 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:50,124 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:50,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617091333] [2022-03-03 18:39:50,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:50,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:50,125 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:50,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:50,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:50,125 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) [2022-03-03 18:39:50,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:50,282 INFO L93 Difference]: Finished difference Result 3089 states and 11464 transitions. [2022-03-03 18:39:50,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:50,283 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:50,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:50,292 INFO L225 Difference]: With dead ends: 3089 [2022-03-03 18:39:50,293 INFO L226 Difference]: Without dead ends: 2930 [2022-03-03 18:39:50,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:50,293 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 [2022-03-03 18:39:50,294 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] [2022-03-03 18:39:50,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2022-03-03 18:39:50,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1506. [2022-03-03 18:39:50,338 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) [2022-03-03 18:39:50,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 5993 transitions. [2022-03-03 18:39:50,344 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 5993 transitions. Word has length 25 [2022-03-03 18:39:50,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:50,344 INFO L470 AbstractCegarLoop]: Abstraction has 1506 states and 5993 transitions. [2022-03-03 18:39:50,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:50,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 5993 transitions. [2022-03-03 18:39:50,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:50,349 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:50,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:50,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-03 18:39:50,349 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:50,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:50,350 INFO L85 PathProgramCache]: Analyzing trace with hash -252046633, now seen corresponding path program 10 times [2022-03-03 18:39:50,350 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:50,350 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199550288] [2022-03-03 18:39:50,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:50,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:50,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:50,528 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:50,528 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199550288] [2022-03-03 18:39:50,528 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199550288] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:50,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:50,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:50,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139343262] [2022-03-03 18:39:50,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:50,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:50,529 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:50,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:50,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:50,529 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) [2022-03-03 18:39:50,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:50,682 INFO L93 Difference]: Finished difference Result 3117 states and 11552 transitions. [2022-03-03 18:39:50,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:50,683 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:50,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:50,691 INFO L225 Difference]: With dead ends: 3117 [2022-03-03 18:39:50,692 INFO L226 Difference]: Without dead ends: 2914 [2022-03-03 18:39:50,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:50,692 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 [2022-03-03 18:39:50,693 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] [2022-03-03 18:39:50,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2022-03-03 18:39:50,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 1490. [2022-03-03 18:39:50,732 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) [2022-03-03 18:39:50,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 5937 transitions. [2022-03-03 18:39:50,737 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 5937 transitions. Word has length 25 [2022-03-03 18:39:50,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:50,737 INFO L470 AbstractCegarLoop]: Abstraction has 1490 states and 5937 transitions. [2022-03-03 18:39:50,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:50,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 5937 transitions. [2022-03-03 18:39:50,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:50,741 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:50,741 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] [2022-03-03 18:39:50,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-03 18:39:50,742 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:50,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:50,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1436199639, now seen corresponding path program 11 times [2022-03-03 18:39:50,742 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:50,742 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802351284] [2022-03-03 18:39:50,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:50,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:50,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:50,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:50,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802351284] [2022-03-03 18:39:50,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802351284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:50,920 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:50,920 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:50,920 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318110781] [2022-03-03 18:39:50,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:50,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:50,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:50,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:50,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:50,921 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) [2022-03-03 18:39:51,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:51,076 INFO L93 Difference]: Finished difference Result 3210 states and 11906 transitions. [2022-03-03 18:39:51,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:51,076 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:51,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:51,085 INFO L225 Difference]: With dead ends: 3210 [2022-03-03 18:39:51,085 INFO L226 Difference]: Without dead ends: 3023 [2022-03-03 18:39:51,086 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 [2022-03-03 18:39:51,087 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 [2022-03-03 18:39:51,087 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] [2022-03-03 18:39:51,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2022-03-03 18:39:51,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 1536. [2022-03-03 18:39:51,135 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) [2022-03-03 18:39:51,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 6094 transitions. [2022-03-03 18:39:51,140 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 6094 transitions. Word has length 25 [2022-03-03 18:39:51,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:51,140 INFO L470 AbstractCegarLoop]: Abstraction has 1536 states and 6094 transitions. [2022-03-03 18:39:51,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:51,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 6094 transitions. [2022-03-03 18:39:51,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:51,144 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:51,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:51,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-03 18:39:51,144 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:51,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:51,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1083060149, now seen corresponding path program 12 times [2022-03-03 18:39:51,145 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:51,145 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093785956] [2022-03-03 18:39:51,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:51,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:51,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:51,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:51,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093785956] [2022-03-03 18:39:51,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093785956] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:51,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:51,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:51,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96783724] [2022-03-03 18:39:51,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:51,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:51,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:51,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:51,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:51,308 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) [2022-03-03 18:39:51,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:51,482 INFO L93 Difference]: Finished difference Result 3245 states and 11995 transitions. [2022-03-03 18:39:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:51,483 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:51,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:51,491 INFO L225 Difference]: With dead ends: 3245 [2022-03-03 18:39:51,491 INFO L226 Difference]: Without dead ends: 2961 [2022-03-03 18:39:51,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:51,493 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 107 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:39:51,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 162 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:39:51,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2022-03-03 18:39:51,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1474. [2022-03-03 18:39:51,541 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) [2022-03-03 18:39:51,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5881 transitions. [2022-03-03 18:39:51,545 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5881 transitions. Word has length 25 [2022-03-03 18:39:51,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:51,546 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5881 transitions. [2022-03-03 18:39:51,546 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) [2022-03-03 18:39:51,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5881 transitions. [2022-03-03 18:39:51,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:51,549 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:51,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:51,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-03 18:39:51,550 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:51,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:51,550 INFO L85 PathProgramCache]: Analyzing trace with hash 407565713, now seen corresponding path program 13 times [2022-03-03 18:39:51,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:51,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907143655] [2022-03-03 18:39:51,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:51,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:51,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:51,727 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:51,727 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907143655] [2022-03-03 18:39:51,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907143655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:51,728 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:51,728 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:51,728 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563480943] [2022-03-03 18:39:51,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:51,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:51,728 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:51,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:51,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:51,729 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) [2022-03-03 18:39:51,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:51,893 INFO L93 Difference]: Finished difference Result 3018 states and 11199 transitions. [2022-03-03 18:39:51,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:51,894 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 [2022-03-03 18:39:51,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:51,900 INFO L225 Difference]: With dead ends: 3018 [2022-03-03 18:39:51,901 INFO L226 Difference]: Without dead ends: 2859 [2022-03-03 18:39:51,901 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 [2022-03-03 18:39:51,901 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 [2022-03-03 18:39:51,901 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] [2022-03-03 18:39:51,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states. [2022-03-03 18:39:51,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 1498. [2022-03-03 18:39:51,941 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) [2022-03-03 18:39:51,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5965 transitions. [2022-03-03 18:39:51,946 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5965 transitions. Word has length 25 [2022-03-03 18:39:51,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:51,946 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5965 transitions. [2022-03-03 18:39:51,946 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) [2022-03-03 18:39:51,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5965 transitions. [2022-03-03 18:39:51,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:51,950 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:51,950 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] [2022-03-03 18:39:51,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-03 18:39:51,951 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:51,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:51,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1182369037, now seen corresponding path program 14 times [2022-03-03 18:39:51,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:51,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368604170] [2022-03-03 18:39:51,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:51,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:52,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:52,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:52,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368604170] [2022-03-03 18:39:52,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368604170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:52,112 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:52,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:52,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147429330] [2022-03-03 18:39:52,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:52,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:52,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:52,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:52,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:52,114 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) [2022-03-03 18:39:52,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:52,269 INFO L93 Difference]: Finished difference Result 3048 states and 11292 transitions. [2022-03-03 18:39:52,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:52,270 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 [2022-03-03 18:39:52,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:52,278 INFO L225 Difference]: With dead ends: 3048 [2022-03-03 18:39:52,278 INFO L226 Difference]: Without dead ends: 2843 [2022-03-03 18:39:52,279 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 [2022-03-03 18:39:52,279 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 [2022-03-03 18:39:52,279 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] [2022-03-03 18:39:52,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2022-03-03 18:39:52,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 1482. [2022-03-03 18:39:52,319 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) [2022-03-03 18:39:52,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5909 transitions. [2022-03-03 18:39:52,323 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5909 transitions. Word has length 25 [2022-03-03 18:39:52,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:52,324 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5909 transitions. [2022-03-03 18:39:52,324 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) [2022-03-03 18:39:52,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5909 transitions. [2022-03-03 18:39:52,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:52,327 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:52,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:52,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-03 18:39:52,328 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:52,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:52,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1488628339, now seen corresponding path program 15 times [2022-03-03 18:39:52,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:52,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179565055] [2022-03-03 18:39:52,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:52,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:52,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:52,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:52,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179565055] [2022-03-03 18:39:52,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179565055] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:52,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:52,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:52,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044816694] [2022-03-03 18:39:52,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:52,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:52,496 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:52,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:52,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:52,496 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) [2022-03-03 18:39:52,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:52,631 INFO L93 Difference]: Finished difference Result 3016 states and 11186 transitions. [2022-03-03 18:39:52,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:52,632 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:52,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:52,640 INFO L225 Difference]: With dead ends: 3016 [2022-03-03 18:39:52,640 INFO L226 Difference]: Without dead ends: 2857 [2022-03-03 18:39:52,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:52,641 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 [2022-03-03 18:39:52,641 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] [2022-03-03 18:39:52,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2022-03-03 18:39:52,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 1498. [2022-03-03 18:39:52,679 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) [2022-03-03 18:39:52,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5957 transitions. [2022-03-03 18:39:52,684 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5957 transitions. Word has length 25 [2022-03-03 18:39:52,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:52,684 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5957 transitions. [2022-03-03 18:39:52,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:52,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5957 transitions. [2022-03-03 18:39:52,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:52,688 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:52,688 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] [2022-03-03 18:39:52,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-03 18:39:52,688 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:52,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:52,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1798040973, now seen corresponding path program 16 times [2022-03-03 18:39:52,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:52,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687379487] [2022-03-03 18:39:52,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:52,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:52,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:52,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:52,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687379487] [2022-03-03 18:39:52,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687379487] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:52,838 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:52,838 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:52,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54130581] [2022-03-03 18:39:52,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:52,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:52,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:52,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:52,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:52,839 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) [2022-03-03 18:39:52,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:52,993 INFO L93 Difference]: Finished difference Result 3044 states and 11274 transitions. [2022-03-03 18:39:52,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:52,994 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:52,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:53,002 INFO L225 Difference]: With dead ends: 3044 [2022-03-03 18:39:53,002 INFO L226 Difference]: Without dead ends: 2841 [2022-03-03 18:39:53,002 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 [2022-03-03 18:39:53,002 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 [2022-03-03 18:39:53,003 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] [2022-03-03 18:39:53,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2022-03-03 18:39:53,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 1482. [2022-03-03 18:39:53,038 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) [2022-03-03 18:39:53,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5901 transitions. [2022-03-03 18:39:53,043 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5901 transitions. Word has length 25 [2022-03-03 18:39:53,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:53,043 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5901 transitions. [2022-03-03 18:39:53,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:53,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5901 transitions. [2022-03-03 18:39:53,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:53,047 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:53,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:53,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-03 18:39:53,047 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:53,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:53,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1389177003, now seen corresponding path program 17 times [2022-03-03 18:39:53,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:53,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719709659] [2022-03-03 18:39:53,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:53,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:53,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:53,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:53,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719709659] [2022-03-03 18:39:53,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719709659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:53,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:53,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:53,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413743027] [2022-03-03 18:39:53,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:53,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:53,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:53,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:53,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:53,226 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) [2022-03-03 18:39:53,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:53,379 INFO L93 Difference]: Finished difference Result 3090 states and 11455 transitions. [2022-03-03 18:39:53,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:53,379 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:53,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:53,386 INFO L225 Difference]: With dead ends: 3090 [2022-03-03 18:39:53,386 INFO L226 Difference]: Without dead ends: 2901 [2022-03-03 18:39:53,386 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 [2022-03-03 18:39:53,387 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 [2022-03-03 18:39:53,387 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] [2022-03-03 18:39:53,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2022-03-03 18:39:53,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 1512. [2022-03-03 18:39:53,421 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) [2022-03-03 18:39:53,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 5994 transitions. [2022-03-03 18:39:53,426 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 5994 transitions. Word has length 25 [2022-03-03 18:39:53,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:53,426 INFO L470 AbstractCegarLoop]: Abstraction has 1512 states and 5994 transitions. [2022-03-03 18:39:53,427 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) [2022-03-03 18:39:53,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 5994 transitions. [2022-03-03 18:39:53,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:53,430 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:53,430 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] [2022-03-03 18:39:53,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-03 18:39:53,430 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:53,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:53,431 INFO L85 PathProgramCache]: Analyzing trace with hash 862453299, now seen corresponding path program 18 times [2022-03-03 18:39:53,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:53,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164877705] [2022-03-03 18:39:53,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:53,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:53,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:53,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:53,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164877705] [2022-03-03 18:39:53,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164877705] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:53,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:53,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:53,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121951169] [2022-03-03 18:39:53,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:53,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:53,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:53,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:53,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:53,586 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) [2022-03-03 18:39:53,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:53,728 INFO L93 Difference]: Finished difference Result 3088 states and 11420 transitions. [2022-03-03 18:39:53,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:53,728 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:53,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:53,751 INFO L225 Difference]: With dead ends: 3088 [2022-03-03 18:39:53,751 INFO L226 Difference]: Without dead ends: 2863 [2022-03-03 18:39:53,751 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 [2022-03-03 18:39:53,752 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 [2022-03-03 18:39:53,752 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] [2022-03-03 18:39:53,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2022-03-03 18:39:53,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 1474. [2022-03-03 18:39:53,786 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) [2022-03-03 18:39:53,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5877 transitions. [2022-03-03 18:39:53,790 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5877 transitions. Word has length 25 [2022-03-03 18:39:53,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:53,791 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5877 transitions. [2022-03-03 18:39:53,791 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) [2022-03-03 18:39:53,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5877 transitions. [2022-03-03 18:39:53,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:53,794 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:53,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:53,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-03 18:39:53,795 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:53,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:53,795 INFO L85 PathProgramCache]: Analyzing trace with hash -483963721, now seen corresponding path program 19 times [2022-03-03 18:39:53,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:53,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090319586] [2022-03-03 18:39:53,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:53,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:53,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:53,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:53,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090319586] [2022-03-03 18:39:53,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090319586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:53,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:53,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:53,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822031141] [2022-03-03 18:39:53,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:53,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:53,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:53,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:53,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:53,955 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) [2022-03-03 18:39:54,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:54,133 INFO L93 Difference]: Finished difference Result 3261 states and 12104 transitions. [2022-03-03 18:39:54,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:54,133 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 [2022-03-03 18:39:54,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:54,142 INFO L225 Difference]: With dead ends: 3261 [2022-03-03 18:39:54,142 INFO L226 Difference]: Without dead ends: 3072 [2022-03-03 18:39:54,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:54,143 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 [2022-03-03 18:39:54,143 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] [2022-03-03 18:39:54,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2022-03-03 18:39:54,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 1543. [2022-03-03 18:39:54,185 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) [2022-03-03 18:39:54,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 6123 transitions. [2022-03-03 18:39:54,189 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 6123 transitions. Word has length 25 [2022-03-03 18:39:54,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:54,190 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 6123 transitions. [2022-03-03 18:39:54,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:54,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 6123 transitions. [2022-03-03 18:39:54,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:54,194 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:54,194 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] [2022-03-03 18:39:54,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-03 18:39:54,194 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:54,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:54,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1767666581, now seen corresponding path program 20 times [2022-03-03 18:39:54,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:54,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957215513] [2022-03-03 18:39:54,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:54,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:54,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:54,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:54,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957215513] [2022-03-03 18:39:54,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957215513] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:54,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:54,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:54,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696444556] [2022-03-03 18:39:54,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:54,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:54,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:54,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:54,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:54,361 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) [2022-03-03 18:39:54,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:54,507 INFO L93 Difference]: Finished difference Result 3259 states and 12069 transitions. [2022-03-03 18:39:54,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:54,507 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 [2022-03-03 18:39:54,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:54,516 INFO L225 Difference]: With dead ends: 3259 [2022-03-03 18:39:54,516 INFO L226 Difference]: Without dead ends: 3042 [2022-03-03 18:39:54,516 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 [2022-03-03 18:39:54,517 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 [2022-03-03 18:39:54,517 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] [2022-03-03 18:39:54,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2022-03-03 18:39:54,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 1513. [2022-03-03 18:39:54,559 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) [2022-03-03 18:39:54,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 6015 transitions. [2022-03-03 18:39:54,565 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 6015 transitions. Word has length 25 [2022-03-03 18:39:54,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:54,565 INFO L470 AbstractCegarLoop]: Abstraction has 1513 states and 6015 transitions. [2022-03-03 18:39:54,565 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) [2022-03-03 18:39:54,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 6015 transitions. [2022-03-03 18:39:54,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:54,569 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:54,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:54,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-03 18:39:54,569 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:54,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:54,570 INFO L85 PathProgramCache]: Analyzing trace with hash -548597227, now seen corresponding path program 21 times [2022-03-03 18:39:54,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:54,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490219059] [2022-03-03 18:39:54,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:54,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:54,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:54,731 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:54,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490219059] [2022-03-03 18:39:54,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490219059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:54,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:54,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:54,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533805043] [2022-03-03 18:39:54,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:54,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:54,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:54,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:54,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:54,732 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) [2022-03-03 18:39:54,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:54,865 INFO L93 Difference]: Finished difference Result 3329 states and 12323 transitions. [2022-03-03 18:39:54,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:54,865 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:54,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:54,873 INFO L225 Difference]: With dead ends: 3329 [2022-03-03 18:39:54,873 INFO L226 Difference]: Without dead ends: 3140 [2022-03-03 18:39:54,873 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 [2022-03-03 18:39:54,874 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 [2022-03-03 18:39:54,874 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] [2022-03-03 18:39:54,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2022-03-03 18:39:54,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 1576. [2022-03-03 18:39:54,912 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) [2022-03-03 18:39:54,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 6222 transitions. [2022-03-03 18:39:54,917 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 6222 transitions. Word has length 25 [2022-03-03 18:39:54,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:54,917 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 6222 transitions. [2022-03-03 18:39:54,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:54,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 6222 transitions. [2022-03-03 18:39:54,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:54,921 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:54,921 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] [2022-03-03 18:39:54,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-03 18:39:54,921 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:54,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:54,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1104385515, now seen corresponding path program 22 times [2022-03-03 18:39:54,922 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:54,922 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104292116] [2022-03-03 18:39:54,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:54,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:55,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:55,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:55,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104292116] [2022-03-03 18:39:55,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104292116] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:55,085 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:55,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:55,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379267670] [2022-03-03 18:39:55,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:55,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:55,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:55,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:55,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:55,086 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) [2022-03-03 18:39:55,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:55,235 INFO L93 Difference]: Finished difference Result 3362 states and 12406 transitions. [2022-03-03 18:39:55,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:55,236 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:55,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:55,243 INFO L225 Difference]: With dead ends: 3362 [2022-03-03 18:39:55,244 INFO L226 Difference]: Without dead ends: 3077 [2022-03-03 18:39:55,244 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 [2022-03-03 18:39:55,244 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 [2022-03-03 18:39:55,244 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] [2022-03-03 18:39:55,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2022-03-03 18:39:55,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 1513. [2022-03-03 18:39:55,282 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) [2022-03-03 18:39:55,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 5984 transitions. [2022-03-03 18:39:55,287 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 5984 transitions. Word has length 25 [2022-03-03 18:39:55,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:55,287 INFO L470 AbstractCegarLoop]: Abstraction has 1513 states and 5984 transitions. [2022-03-03 18:39:55,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:55,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 5984 transitions. [2022-03-03 18:39:55,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:55,291 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:55,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:55,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-03 18:39:55,291 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:55,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:55,292 INFO L85 PathProgramCache]: Analyzing trace with hash 433750387, now seen corresponding path program 23 times [2022-03-03 18:39:55,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:55,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149464495] [2022-03-03 18:39:55,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:55,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:55,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:55,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:55,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149464495] [2022-03-03 18:39:55,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149464495] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:55,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:55,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:55,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022770684] [2022-03-03 18:39:55,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:55,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:55,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:55,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:55,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:55,446 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) [2022-03-03 18:39:55,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:55,570 INFO L93 Difference]: Finished difference Result 3308 states and 12231 transitions. [2022-03-03 18:39:55,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:55,570 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 [2022-03-03 18:39:55,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:55,592 INFO L225 Difference]: With dead ends: 3308 [2022-03-03 18:39:55,592 INFO L226 Difference]: Without dead ends: 3121 [2022-03-03 18:39:55,593 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 [2022-03-03 18:39:55,593 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 [2022-03-03 18:39:55,593 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] [2022-03-03 18:39:55,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3121 states. [2022-03-03 18:39:55,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3121 to 1559. [2022-03-03 18:39:55,634 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) [2022-03-03 18:39:55,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 6141 transitions. [2022-03-03 18:39:55,639 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 6141 transitions. Word has length 25 [2022-03-03 18:39:55,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:55,639 INFO L470 AbstractCegarLoop]: Abstraction has 1559 states and 6141 transitions. [2022-03-03 18:39:55,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:55,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 6141 transitions. [2022-03-03 18:39:55,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:55,644 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:55,644 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] [2022-03-03 18:39:55,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-03 18:39:55,644 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:55,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:55,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1923639211, now seen corresponding path program 24 times [2022-03-03 18:39:55,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:55,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946382407] [2022-03-03 18:39:55,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:55,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:55,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:55,824 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:55,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946382407] [2022-03-03 18:39:55,824 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946382407] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:55,824 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:55,824 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:55,824 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108794557] [2022-03-03 18:39:55,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:55,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:55,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:55,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:55,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:55,825 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) [2022-03-03 18:39:55,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:55,985 INFO L93 Difference]: Finished difference Result 3343 states and 12320 transitions. [2022-03-03 18:39:55,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:55,985 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 [2022-03-03 18:39:55,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:55,995 INFO L225 Difference]: With dead ends: 3343 [2022-03-03 18:39:55,995 INFO L226 Difference]: Without dead ends: 3020 [2022-03-03 18:39:55,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:55,996 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 [2022-03-03 18:39:55,996 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] [2022-03-03 18:39:56,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2022-03-03 18:39:56,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 1458. [2022-03-03 18:39:56,042 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) [2022-03-03 18:39:56,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5825 transitions. [2022-03-03 18:39:56,049 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5825 transitions. Word has length 25 [2022-03-03 18:39:56,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:56,049 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5825 transitions. [2022-03-03 18:39:56,049 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) [2022-03-03 18:39:56,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5825 transitions. [2022-03-03 18:39:56,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:56,053 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:56,053 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] [2022-03-03 18:39:56,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-03 18:39:56,053 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:56,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:56,054 INFO L85 PathProgramCache]: Analyzing trace with hash -409784651, now seen corresponding path program 25 times [2022-03-03 18:39:56,054 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:56,054 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975785959] [2022-03-03 18:39:56,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:56,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:56,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:56,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:56,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975785959] [2022-03-03 18:39:56,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975785959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:56,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:56,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:56,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750679720] [2022-03-03 18:39:56,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:56,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:56,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:56,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:56,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:56,218 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) [2022-03-03 18:39:56,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:56,357 INFO L93 Difference]: Finished difference Result 3146 states and 11689 transitions. [2022-03-03 18:39:56,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:56,357 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 [2022-03-03 18:39:56,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:56,364 INFO L225 Difference]: With dead ends: 3146 [2022-03-03 18:39:56,364 INFO L226 Difference]: Without dead ends: 2987 [2022-03-03 18:39:56,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:56,365 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 [2022-03-03 18:39:56,365 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] [2022-03-03 18:39:56,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2022-03-03 18:39:56,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 1526. [2022-03-03 18:39:56,401 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) [2022-03-03 18:39:56,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 6093 transitions. [2022-03-03 18:39:56,406 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 6093 transitions. Word has length 25 [2022-03-03 18:39:56,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:56,406 INFO L470 AbstractCegarLoop]: Abstraction has 1526 states and 6093 transitions. [2022-03-03 18:39:56,406 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) [2022-03-03 18:39:56,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 6093 transitions. [2022-03-03 18:39:56,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:56,409 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:56,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:56,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-03 18:39:56,410 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:56,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:56,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1418082635, now seen corresponding path program 26 times [2022-03-03 18:39:56,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:56,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147308315] [2022-03-03 18:39:56,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:56,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:56,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:56,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:56,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147308315] [2022-03-03 18:39:56,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147308315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:56,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:56,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:56,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570013603] [2022-03-03 18:39:56,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:56,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:56,554 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:56,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:56,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:56,555 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) [2022-03-03 18:39:56,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:56,672 INFO L93 Difference]: Finished difference Result 3209 states and 11896 transitions. [2022-03-03 18:39:56,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:56,672 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 [2022-03-03 18:39:56,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:56,681 INFO L225 Difference]: With dead ends: 3209 [2022-03-03 18:39:56,681 INFO L226 Difference]: Without dead ends: 2955 [2022-03-03 18:39:56,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:56,682 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 [2022-03-03 18:39:56,682 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] [2022-03-03 18:39:56,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states. [2022-03-03 18:39:56,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 1494. [2022-03-03 18:39:56,721 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) [2022-03-03 18:39:56,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 5965 transitions. [2022-03-03 18:39:56,726 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 5965 transitions. Word has length 25 [2022-03-03 18:39:56,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:56,726 INFO L470 AbstractCegarLoop]: Abstraction has 1494 states and 5965 transitions. [2022-03-03 18:39:56,726 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) [2022-03-03 18:39:56,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 5965 transitions. [2022-03-03 18:39:56,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:56,730 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:56,730 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] [2022-03-03 18:39:56,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-03 18:39:56,730 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:56,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:56,731 INFO L85 PathProgramCache]: Analyzing trace with hash -371169967, now seen corresponding path program 27 times [2022-03-03 18:39:56,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:56,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731361135] [2022-03-03 18:39:56,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:56,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:56,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:56,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:56,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731361135] [2022-03-03 18:39:56,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731361135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:56,900 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:56,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:56,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345734037] [2022-03-03 18:39:56,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:56,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:56,901 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:56,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:56,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:56,902 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) [2022-03-03 18:39:57,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:57,033 INFO L93 Difference]: Finished difference Result 3097 states and 11495 transitions. [2022-03-03 18:39:57,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:57,033 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 [2022-03-03 18:39:57,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:57,042 INFO L225 Difference]: With dead ends: 3097 [2022-03-03 18:39:57,042 INFO L226 Difference]: Without dead ends: 2938 [2022-03-03 18:39:57,043 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 [2022-03-03 18:39:57,043 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 [2022-03-03 18:39:57,043 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] [2022-03-03 18:39:57,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2022-03-03 18:39:57,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1510. [2022-03-03 18:39:57,080 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) [2022-03-03 18:39:57,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 6013 transitions. [2022-03-03 18:39:57,085 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 6013 transitions. Word has length 25 [2022-03-03 18:39:57,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:57,086 INFO L470 AbstractCegarLoop]: Abstraction has 1510 states and 6013 transitions. [2022-03-03 18:39:57,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:57,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 6013 transitions. [2022-03-03 18:39:57,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:57,089 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:57,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:57,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-03 18:39:57,090 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:57,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:57,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1961104717, now seen corresponding path program 28 times [2022-03-03 18:39:57,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:57,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374993289] [2022-03-03 18:39:57,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:57,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:57,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:57,254 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:57,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374993289] [2022-03-03 18:39:57,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374993289] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:57,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:57,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:57,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968323423] [2022-03-03 18:39:57,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:57,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:57,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:57,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:57,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:57,255 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) [2022-03-03 18:39:57,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:57,418 INFO L93 Difference]: Finished difference Result 3127 states and 11588 transitions. [2022-03-03 18:39:57,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:57,419 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 [2022-03-03 18:39:57,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:57,425 INFO L225 Difference]: With dead ends: 3127 [2022-03-03 18:39:57,425 INFO L226 Difference]: Without dead ends: 2922 [2022-03-03 18:39:57,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:57,426 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 [2022-03-03 18:39:57,426 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] [2022-03-03 18:39:57,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2022-03-03 18:39:57,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 1494. [2022-03-03 18:39:57,461 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) [2022-03-03 18:39:57,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 5957 transitions. [2022-03-03 18:39:57,466 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 5957 transitions. Word has length 25 [2022-03-03 18:39:57,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:57,466 INFO L470 AbstractCegarLoop]: Abstraction has 1494 states and 5957 transitions. [2022-03-03 18:39:57,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:57,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 5957 transitions. [2022-03-03 18:39:57,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:57,470 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:57,470 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] [2022-03-03 18:39:57,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-03 18:39:57,470 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:57,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:57,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1695699093, now seen corresponding path program 29 times [2022-03-03 18:39:57,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:57,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508750985] [2022-03-03 18:39:57,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:57,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:57,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:57,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:57,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508750985] [2022-03-03 18:39:57,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508750985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:57,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:57,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:57,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920114669] [2022-03-03 18:39:57,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:57,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:57,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:57,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:57,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:57,635 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) [2022-03-03 18:39:57,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:57,767 INFO L93 Difference]: Finished difference Result 3237 states and 11993 transitions. [2022-03-03 18:39:57,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:57,767 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:57,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:57,774 INFO L225 Difference]: With dead ends: 3237 [2022-03-03 18:39:57,774 INFO L226 Difference]: Without dead ends: 3048 [2022-03-03 18:39:57,774 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 [2022-03-03 18:39:57,774 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 [2022-03-03 18:39:57,774 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] [2022-03-03 18:39:57,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2022-03-03 18:39:57,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 1557. [2022-03-03 18:39:57,817 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) [2022-03-03 18:39:57,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 6164 transitions. [2022-03-03 18:39:57,821 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 6164 transitions. Word has length 25 [2022-03-03 18:39:57,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:57,821 INFO L470 AbstractCegarLoop]: Abstraction has 1557 states and 6164 transitions. [2022-03-03 18:39:57,821 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) [2022-03-03 18:39:57,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 6164 transitions. [2022-03-03 18:39:57,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:57,824 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:57,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:57,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-03 18:39:57,824 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:57,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:57,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1993752051, now seen corresponding path program 30 times [2022-03-03 18:39:57,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:57,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93013500] [2022-03-03 18:39:57,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:57,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:57,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:57,963 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:57,963 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93013500] [2022-03-03 18:39:57,963 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93013500] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:57,963 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:57,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:57,963 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518137160] [2022-03-03 18:39:57,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:57,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:57,964 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:57,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:57,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:57,964 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) [2022-03-03 18:39:58,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:58,081 INFO L93 Difference]: Finished difference Result 3270 states and 12076 transitions. [2022-03-03 18:39:58,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:58,081 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:58,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:58,088 INFO L225 Difference]: With dead ends: 3270 [2022-03-03 18:39:58,088 INFO L226 Difference]: Without dead ends: 2961 [2022-03-03 18:39:58,088 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 [2022-03-03 18:39:58,088 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 [2022-03-03 18:39:58,089 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] [2022-03-03 18:39:58,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2022-03-03 18:39:58,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1470. [2022-03-03 18:39:58,114 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) [2022-03-03 18:39:58,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5869 transitions. [2022-03-03 18:39:58,117 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5869 transitions. Word has length 25 [2022-03-03 18:39:58,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:58,117 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5869 transitions. [2022-03-03 18:39:58,118 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) [2022-03-03 18:39:58,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5869 transitions. [2022-03-03 18:39:58,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:58,121 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:58,121 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] [2022-03-03 18:39:58,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-03 18:39:58,121 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:58,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:58,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1911164755, now seen corresponding path program 31 times [2022-03-03 18:39:58,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:58,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905843994] [2022-03-03 18:39:58,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:58,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:58,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:58,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:58,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905843994] [2022-03-03 18:39:58,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905843994] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:58,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:58,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:58,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374864643] [2022-03-03 18:39:58,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:58,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:58,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:58,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:58,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:58,272 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) [2022-03-03 18:39:58,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:58,395 INFO L93 Difference]: Finished difference Result 3113 states and 11574 transitions. [2022-03-03 18:39:58,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:58,395 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:58,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:58,402 INFO L225 Difference]: With dead ends: 3113 [2022-03-03 18:39:58,402 INFO L226 Difference]: Without dead ends: 2954 [2022-03-03 18:39:58,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:58,402 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 [2022-03-03 18:39:58,402 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] [2022-03-03 18:39:58,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2022-03-03 18:39:58,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 1518. [2022-03-03 18:39:58,429 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) [2022-03-03 18:39:58,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 6053 transitions. [2022-03-03 18:39:58,433 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 6053 transitions. Word has length 25 [2022-03-03 18:39:58,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:58,433 INFO L470 AbstractCegarLoop]: Abstraction has 1518 states and 6053 transitions. [2022-03-03 18:39:58,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:58,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 6053 transitions. [2022-03-03 18:39:58,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:58,436 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:58,436 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] [2022-03-03 18:39:58,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-03 18:39:58,436 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:58,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:58,436 INFO L85 PathProgramCache]: Analyzing trace with hash 902866771, now seen corresponding path program 32 times [2022-03-03 18:39:58,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:58,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191455777] [2022-03-03 18:39:58,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:58,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:58,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:58,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:58,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191455777] [2022-03-03 18:39:58,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191455777] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:58,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:58,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:58,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093288356] [2022-03-03 18:39:58,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:58,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:58,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:58,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:58,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:58,613 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) [2022-03-03 18:39:58,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:58,753 INFO L93 Difference]: Finished difference Result 3176 states and 11781 transitions. [2022-03-03 18:39:58,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:58,753 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 [2022-03-03 18:39:58,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:58,760 INFO L225 Difference]: With dead ends: 3176 [2022-03-03 18:39:58,760 INFO L226 Difference]: Without dead ends: 2922 [2022-03-03 18:39:58,760 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 [2022-03-03 18:39:58,760 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 [2022-03-03 18:39:58,760 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] [2022-03-03 18:39:58,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2022-03-03 18:39:58,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 1486. [2022-03-03 18:39:58,785 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) [2022-03-03 18:39:58,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5925 transitions. [2022-03-03 18:39:58,790 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5925 transitions. Word has length 25 [2022-03-03 18:39:58,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:58,790 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5925 transitions. [2022-03-03 18:39:58,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:58,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5925 transitions. [2022-03-03 18:39:58,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:58,793 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:58,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:58,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-03 18:39:58,794 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:58,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:58,794 INFO L85 PathProgramCache]: Analyzing trace with hash -350012683, now seen corresponding path program 33 times [2022-03-03 18:39:58,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:58,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432596867] [2022-03-03 18:39:58,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:58,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:58,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:58,939 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:58,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432596867] [2022-03-03 18:39:58,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432596867] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:58,939 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:58,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:58,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760327653] [2022-03-03 18:39:58,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:58,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:58,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:58,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:58,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:58,940 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) [2022-03-03 18:39:59,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:59,079 INFO L93 Difference]: Finished difference Result 3058 states and 11363 transitions. [2022-03-03 18:39:59,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:59,080 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 [2022-03-03 18:39:59,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:59,086 INFO L225 Difference]: With dead ends: 3058 [2022-03-03 18:39:59,086 INFO L226 Difference]: Without dead ends: 2899 [2022-03-03 18:39:59,086 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 [2022-03-03 18:39:59,087 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 [2022-03-03 18:39:59,087 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] [2022-03-03 18:39:59,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2022-03-03 18:39:59,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1502. [2022-03-03 18:39:59,113 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) [2022-03-03 18:39:59,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 5973 transitions. [2022-03-03 18:39:59,116 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 5973 transitions. Word has length 25 [2022-03-03 18:39:59,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:59,117 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 5973 transitions. [2022-03-03 18:39:59,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:59,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 5973 transitions. [2022-03-03 18:39:59,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:59,119 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:59,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:59,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-03 18:39:59,119 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:59,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:59,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1330483957, now seen corresponding path program 34 times [2022-03-03 18:39:59,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:59,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995247691] [2022-03-03 18:39:59,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:59,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:59,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:59,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:59,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995247691] [2022-03-03 18:39:59,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995247691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:59,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:59,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:59,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823742016] [2022-03-03 18:39:59,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:59,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:59,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:59,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:59,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:59,254 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) [2022-03-03 18:39:59,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:59,393 INFO L93 Difference]: Finished difference Result 3082 states and 11439 transitions. [2022-03-03 18:39:59,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:59,393 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:59,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:59,399 INFO L225 Difference]: With dead ends: 3082 [2022-03-03 18:39:59,399 INFO L226 Difference]: Without dead ends: 2883 [2022-03-03 18:39:59,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:59,400 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 [2022-03-03 18:39:59,400 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] [2022-03-03 18:39:59,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2022-03-03 18:39:59,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 1486. [2022-03-03 18:39:59,428 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) [2022-03-03 18:39:59,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5917 transitions. [2022-03-03 18:39:59,431 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5917 transitions. Word has length 25 [2022-03-03 18:39:59,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:59,431 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5917 transitions. [2022-03-03 18:39:59,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:59,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5917 transitions. [2022-03-03 18:39:59,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:59,433 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:59,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:59,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-03 18:39:59,434 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:59,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:59,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1276237067, now seen corresponding path program 35 times [2022-03-03 18:39:59,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:59,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188978178] [2022-03-03 18:39:59,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:59,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:59,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:59,579 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:59,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188978178] [2022-03-03 18:39:59,579 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188978178] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:59,579 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:59,579 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:59,579 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207094232] [2022-03-03 18:39:59,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:59,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:59,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:59,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:59,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:59,580 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) [2022-03-03 18:39:59,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:39:59,739 INFO L93 Difference]: Finished difference Result 3173 states and 11786 transitions. [2022-03-03 18:39:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:39:59,740 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:39:59,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:39:59,748 INFO L225 Difference]: With dead ends: 3173 [2022-03-03 18:39:59,749 INFO L226 Difference]: Without dead ends: 2990 [2022-03-03 18:39:59,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:39:59,749 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 [2022-03-03 18:39:59,750 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] [2022-03-03 18:39:59,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2022-03-03 18:39:59,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 1530. [2022-03-03 18:39:59,785 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) [2022-03-03 18:39:59,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 6069 transitions. [2022-03-03 18:39:59,789 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 6069 transitions. Word has length 25 [2022-03-03 18:39:59,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:39:59,790 INFO L470 AbstractCegarLoop]: Abstraction has 1530 states and 6069 transitions. [2022-03-03 18:39:59,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:59,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 6069 transitions. [2022-03-03 18:39:59,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:39:59,793 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:59,793 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] [2022-03-03 18:39:59,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-03 18:39:59,793 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:39:59,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:59,794 INFO L85 PathProgramCache]: Analyzing trace with hash 2014398291, now seen corresponding path program 36 times [2022-03-03 18:39:59,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:59,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767633128] [2022-03-03 18:39:59,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:59,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:59,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:59,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:59,959 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767633128] [2022-03-03 18:39:59,959 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767633128] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:59,960 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:59,960 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:39:59,960 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797783792] [2022-03-03 18:39:59,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:59,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:39:59,960 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:59,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:39:59,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:39:59,961 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) [2022-03-03 18:40:00,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:00,088 INFO L93 Difference]: Finished difference Result 3212 states and 11889 transitions. [2022-03-03 18:40:00,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:00,089 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 [2022-03-03 18:40:00,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:00,095 INFO L225 Difference]: With dead ends: 3212 [2022-03-03 18:40:00,096 INFO L226 Difference]: Without dead ends: 2930 [2022-03-03 18:40:00,096 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 [2022-03-03 18:40:00,096 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 [2022-03-03 18:40:00,096 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] [2022-03-03 18:40:00,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2022-03-03 18:40:00,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1470. [2022-03-03 18:40:00,124 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) [2022-03-03 18:40:00,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5861 transitions. [2022-03-03 18:40:00,127 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5861 transitions. Word has length 25 [2022-03-03 18:40:00,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:00,127 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5861 transitions. [2022-03-03 18:40:00,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:00,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5861 transitions. [2022-03-03 18:40:00,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:00,130 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:00,130 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] [2022-03-03 18:40:00,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-03 18:40:00,130 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:00,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:00,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1689199057, now seen corresponding path program 37 times [2022-03-03 18:40:00,130 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:00,130 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678007740] [2022-03-03 18:40:00,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:00,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:00,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:00,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:00,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678007740] [2022-03-03 18:40:00,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678007740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:00,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:00,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:00,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950183346] [2022-03-03 18:40:00,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:00,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:00,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:00,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:00,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:00,273 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) [2022-03-03 18:40:00,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:00,412 INFO L93 Difference]: Finished difference Result 2991 states and 11110 transitions. [2022-03-03 18:40:00,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:00,412 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 [2022-03-03 18:40:00,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:00,420 INFO L225 Difference]: With dead ends: 2991 [2022-03-03 18:40:00,420 INFO L226 Difference]: Without dead ends: 2832 [2022-03-03 18:40:00,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:00,421 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 [2022-03-03 18:40:00,421 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] [2022-03-03 18:40:00,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2022-03-03 18:40:00,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 1494. [2022-03-03 18:40:00,449 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) [2022-03-03 18:40:00,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 5945 transitions. [2022-03-03 18:40:00,453 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 5945 transitions. Word has length 25 [2022-03-03 18:40:00,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:00,453 INFO L470 AbstractCegarLoop]: Abstraction has 1494 states and 5945 transitions. [2022-03-03 18:40:00,453 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) [2022-03-03 18:40:00,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 5945 transitions. [2022-03-03 18:40:00,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:00,456 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:00,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:00,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-03 18:40:00,456 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:00,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:00,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1015833489, now seen corresponding path program 38 times [2022-03-03 18:40:00,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:00,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300978133] [2022-03-03 18:40:00,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:00,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:00,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:00,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:00,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300978133] [2022-03-03 18:40:00,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300978133] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:00,596 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:00,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:00,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892610392] [2022-03-03 18:40:00,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:00,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:00,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:00,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:00,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:00,597 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) [2022-03-03 18:40:00,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:00,713 INFO L93 Difference]: Finished difference Result 3021 states and 11203 transitions. [2022-03-03 18:40:00,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:00,713 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:00,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:00,720 INFO L225 Difference]: With dead ends: 3021 [2022-03-03 18:40:00,720 INFO L226 Difference]: Without dead ends: 2816 [2022-03-03 18:40:00,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:00,721 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 [2022-03-03 18:40:00,721 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] [2022-03-03 18:40:00,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2816 states. [2022-03-03 18:40:00,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2816 to 1478. [2022-03-03 18:40:00,750 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) [2022-03-03 18:40:00,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 5889 transitions. [2022-03-03 18:40:00,754 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 5889 transitions. Word has length 25 [2022-03-03 18:40:00,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:00,755 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 5889 transitions. [2022-03-03 18:40:00,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:00,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 5889 transitions. [2022-03-03 18:40:00,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:00,758 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:00,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:00,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-03 18:40:00,758 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:00,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:00,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1896007023, now seen corresponding path program 39 times [2022-03-03 18:40:00,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:00,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424169444] [2022-03-03 18:40:00,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:00,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:00,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:00,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:00,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424169444] [2022-03-03 18:40:00,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424169444] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:00,900 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:00,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:00,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176480119] [2022-03-03 18:40:00,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:00,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:00,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:00,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:00,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:00,901 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) [2022-03-03 18:40:01,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:01,061 INFO L93 Difference]: Finished difference Result 2985 states and 11085 transitions. [2022-03-03 18:40:01,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:01,061 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 [2022-03-03 18:40:01,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:01,069 INFO L225 Difference]: With dead ends: 2985 [2022-03-03 18:40:01,070 INFO L226 Difference]: Without dead ends: 2826 [2022-03-03 18:40:01,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:01,070 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 [2022-03-03 18:40:01,071 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] [2022-03-03 18:40:01,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2022-03-03 18:40:01,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 1494. [2022-03-03 18:40:01,105 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) [2022-03-03 18:40:01,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 5937 transitions. [2022-03-03 18:40:01,110 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 5937 transitions. Word has length 25 [2022-03-03 18:40:01,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:01,110 INFO L470 AbstractCegarLoop]: Abstraction has 1494 states and 5937 transitions. [2022-03-03 18:40:01,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:01,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 5937 transitions. [2022-03-03 18:40:01,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:01,113 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:01,113 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] [2022-03-03 18:40:01,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-03 18:40:01,113 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:01,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:01,114 INFO L85 PathProgramCache]: Analyzing trace with hash -215510383, now seen corresponding path program 40 times [2022-03-03 18:40:01,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:01,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364698888] [2022-03-03 18:40:01,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:01,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:01,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:01,275 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:01,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364698888] [2022-03-03 18:40:01,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364698888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:01,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:01,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:01,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147801671] [2022-03-03 18:40:01,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:01,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:01,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:01,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:01,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:01,276 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) [2022-03-03 18:40:01,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:01,424 INFO L93 Difference]: Finished difference Result 3009 states and 11161 transitions. [2022-03-03 18:40:01,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:01,424 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 [2022-03-03 18:40:01,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:01,430 INFO L225 Difference]: With dead ends: 3009 [2022-03-03 18:40:01,430 INFO L226 Difference]: Without dead ends: 2810 [2022-03-03 18:40:01,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:01,431 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 [2022-03-03 18:40:01,431 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] [2022-03-03 18:40:01,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2022-03-03 18:40:01,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 1478. [2022-03-03 18:40:01,455 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) [2022-03-03 18:40:01,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 5881 transitions. [2022-03-03 18:40:01,458 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 5881 transitions. Word has length 25 [2022-03-03 18:40:01,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:01,458 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 5881 transitions. [2022-03-03 18:40:01,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:01,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 5881 transitions. [2022-03-03 18:40:01,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:01,461 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:01,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:01,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-03 18:40:01,461 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:01,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:01,461 INFO L85 PathProgramCache]: Analyzing trace with hash -478845069, now seen corresponding path program 41 times [2022-03-03 18:40:01,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:01,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389792375] [2022-03-03 18:40:01,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:01,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:01,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:01,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:01,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389792375] [2022-03-03 18:40:01,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389792375] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:01,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:01,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:01,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975719019] [2022-03-03 18:40:01,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:01,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:01,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:01,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:01,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:01,593 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) [2022-03-03 18:40:01,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:01,717 INFO L93 Difference]: Finished difference Result 3057 states and 11347 transitions. [2022-03-03 18:40:01,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:01,717 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:01,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:01,724 INFO L225 Difference]: With dead ends: 3057 [2022-03-03 18:40:01,724 INFO L226 Difference]: Without dead ends: 2868 [2022-03-03 18:40:01,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:01,724 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 [2022-03-03 18:40:01,724 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] [2022-03-03 18:40:01,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2868 states. [2022-03-03 18:40:01,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2868 to 1506. [2022-03-03 18:40:01,752 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) [2022-03-03 18:40:01,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 5969 transitions. [2022-03-03 18:40:01,755 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 5969 transitions. Word has length 25 [2022-03-03 18:40:01,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:01,756 INFO L470 AbstractCegarLoop]: Abstraction has 1506 states and 5969 transitions. [2022-03-03 18:40:01,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:01,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 5969 transitions. [2022-03-03 18:40:01,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:01,759 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:01,759 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:01,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-03 18:40:01,759 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:01,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:01,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1870989615, now seen corresponding path program 42 times [2022-03-03 18:40:01,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:01,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127427270] [2022-03-03 18:40:01,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:01,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:01,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:01,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:01,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127427270] [2022-03-03 18:40:01,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127427270] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:01,908 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:01,908 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:01,908 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679796086] [2022-03-03 18:40:01,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:01,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:01,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:01,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:01,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:01,909 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) [2022-03-03 18:40:02,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:02,055 INFO L93 Difference]: Finished difference Result 3051 states and 11302 transitions. [2022-03-03 18:40:02,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:02,055 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:02,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:02,064 INFO L225 Difference]: With dead ends: 3051 [2022-03-03 18:40:02,064 INFO L226 Difference]: Without dead ends: 2832 [2022-03-03 18:40:02,065 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 [2022-03-03 18:40:02,068 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 [2022-03-03 18:40:02,068 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] [2022-03-03 18:40:02,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2022-03-03 18:40:02,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 1470. [2022-03-03 18:40:02,121 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) [2022-03-03 18:40:02,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5857 transitions. [2022-03-03 18:40:02,124 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5857 transitions. Word has length 25 [2022-03-03 18:40:02,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:02,124 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5857 transitions. [2022-03-03 18:40:02,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:02,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5857 transitions. [2022-03-03 18:40:02,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:02,127 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:02,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:02,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-03 18:40:02,127 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:02,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:02,128 INFO L85 PathProgramCache]: Analyzing trace with hash 426368213, now seen corresponding path program 43 times [2022-03-03 18:40:02,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:02,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197494781] [2022-03-03 18:40:02,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:02,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:02,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:02,267 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:02,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197494781] [2022-03-03 18:40:02,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197494781] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:02,268 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:02,268 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:02,268 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955439318] [2022-03-03 18:40:02,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:02,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:02,268 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:02,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:02,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:02,269 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) [2022-03-03 18:40:02,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:02,392 INFO L93 Difference]: Finished difference Result 3217 states and 11965 transitions. [2022-03-03 18:40:02,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:02,393 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:02,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:02,400 INFO L225 Difference]: With dead ends: 3217 [2022-03-03 18:40:02,400 INFO L226 Difference]: Without dead ends: 3028 [2022-03-03 18:40:02,400 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 [2022-03-03 18:40:02,400 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 [2022-03-03 18:40:02,401 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] [2022-03-03 18:40:02,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3028 states. [2022-03-03 18:40:02,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3028 to 1528. [2022-03-03 18:40:02,436 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) [2022-03-03 18:40:02,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 6074 transitions. [2022-03-03 18:40:02,440 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 6074 transitions. Word has length 25 [2022-03-03 18:40:02,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:02,440 INFO L470 AbstractCegarLoop]: Abstraction has 1528 states and 6074 transitions. [2022-03-03 18:40:02,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:02,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 6074 transitions. [2022-03-03 18:40:02,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:02,443 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:02,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:02,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-03 18:40:02,444 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:02,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:02,444 INFO L85 PathProgramCache]: Analyzing trace with hash -965776333, now seen corresponding path program 44 times [2022-03-03 18:40:02,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:02,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892844130] [2022-03-03 18:40:02,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:02,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:02,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:02,566 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:02,566 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892844130] [2022-03-03 18:40:02,566 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892844130] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:02,566 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:02,566 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:02,566 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61805705] [2022-03-03 18:40:02,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:02,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:02,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:02,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:02,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:02,567 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) [2022-03-03 18:40:02,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:02,685 INFO L93 Difference]: Finished difference Result 3211 states and 11920 transitions. [2022-03-03 18:40:02,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:02,685 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:02,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:02,691 INFO L225 Difference]: With dead ends: 3211 [2022-03-03 18:40:02,691 INFO L226 Difference]: Without dead ends: 3000 [2022-03-03 18:40:02,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:02,692 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 [2022-03-03 18:40:02,692 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] [2022-03-03 18:40:02,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2022-03-03 18:40:02,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 1500. [2022-03-03 18:40:02,718 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) [2022-03-03 18:40:02,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5972 transitions. [2022-03-03 18:40:02,721 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5972 transitions. Word has length 25 [2022-03-03 18:40:02,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:02,721 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5972 transitions. [2022-03-03 18:40:02,721 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) [2022-03-03 18:40:02,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5972 transitions. [2022-03-03 18:40:02,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:02,724 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:02,724 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] [2022-03-03 18:40:02,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-03 18:40:02,725 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:02,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:02,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1631017395, now seen corresponding path program 45 times [2022-03-03 18:40:02,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:02,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379618351] [2022-03-03 18:40:02,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:02,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:02,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:02,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:02,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379618351] [2022-03-03 18:40:02,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379618351] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:02,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:02,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:02,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979852793] [2022-03-03 18:40:02,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:02,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:02,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:02,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:02,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:02,861 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) [2022-03-03 18:40:02,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:02,981 INFO L93 Difference]: Finished difference Result 3291 states and 12204 transitions. [2022-03-03 18:40:02,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:02,981 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 [2022-03-03 18:40:02,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:02,989 INFO L225 Difference]: With dead ends: 3291 [2022-03-03 18:40:02,989 INFO L226 Difference]: Without dead ends: 3102 [2022-03-03 18:40:02,989 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 [2022-03-03 18:40:02,989 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 [2022-03-03 18:40:02,989 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] [2022-03-03 18:40:02,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states. [2022-03-03 18:40:03,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 1563. [2022-03-03 18:40:03,018 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) [2022-03-03 18:40:03,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 6179 transitions. [2022-03-03 18:40:03,022 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 6179 transitions. Word has length 25 [2022-03-03 18:40:03,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:03,022 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 6179 transitions. [2022-03-03 18:40:03,022 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) [2022-03-03 18:40:03,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 6179 transitions. [2022-03-03 18:40:03,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:03,024 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:03,025 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] [2022-03-03 18:40:03,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-03 18:40:03,025 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:03,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:03,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1931867597, now seen corresponding path program 46 times [2022-03-03 18:40:03,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:03,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062961776] [2022-03-03 18:40:03,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:03,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:03,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:03,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:03,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062961776] [2022-03-03 18:40:03,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062961776] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:03,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:03,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:03,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139777087] [2022-03-03 18:40:03,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:03,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:03,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:03,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:03,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:03,182 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) [2022-03-03 18:40:03,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:03,312 INFO L93 Difference]: Finished difference Result 3324 states and 12287 transitions. [2022-03-03 18:40:03,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:03,313 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:03,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:03,322 INFO L225 Difference]: With dead ends: 3324 [2022-03-03 18:40:03,322 INFO L226 Difference]: Without dead ends: 3039 [2022-03-03 18:40:03,323 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 [2022-03-03 18:40:03,325 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 [2022-03-03 18:40:03,325 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] [2022-03-03 18:40:03,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3039 states. [2022-03-03 18:40:03,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3039 to 1500. [2022-03-03 18:40:03,361 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) [2022-03-03 18:40:03,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5942 transitions. [2022-03-03 18:40:03,366 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5942 transitions. Word has length 25 [2022-03-03 18:40:03,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:03,366 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5942 transitions. [2022-03-03 18:40:03,366 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) [2022-03-03 18:40:03,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5942 transitions. [2022-03-03 18:40:03,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:03,370 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:03,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:03,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-03 18:40:03,371 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:03,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:03,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1995274769, now seen corresponding path program 47 times [2022-03-03 18:40:03,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:03,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465281028] [2022-03-03 18:40:03,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:03,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:03,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:03,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:03,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465281028] [2022-03-03 18:40:03,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465281028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:03,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:03,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:03,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472741665] [2022-03-03 18:40:03,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:03,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:03,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:03,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:03,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:03,528 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) [2022-03-03 18:40:03,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:03,654 INFO L93 Difference]: Finished difference Result 3260 states and 12082 transitions. [2022-03-03 18:40:03,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:03,654 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:03,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:03,660 INFO L225 Difference]: With dead ends: 3260 [2022-03-03 18:40:03,661 INFO L226 Difference]: Without dead ends: 3077 [2022-03-03 18:40:03,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:03,661 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 [2022-03-03 18:40:03,661 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] [2022-03-03 18:40:03,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2022-03-03 18:40:03,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 1544. [2022-03-03 18:40:03,690 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) [2022-03-03 18:40:03,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 6094 transitions. [2022-03-03 18:40:03,693 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 6094 transitions. Word has length 25 [2022-03-03 18:40:03,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:03,693 INFO L470 AbstractCegarLoop]: Abstraction has 1544 states and 6094 transitions. [2022-03-03 18:40:03,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:03,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 6094 transitions. [2022-03-03 18:40:03,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:03,696 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:03,696 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] [2022-03-03 18:40:03,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-03 18:40:03,697 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:03,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:03,697 INFO L85 PathProgramCache]: Analyzing trace with hash 925755763, now seen corresponding path program 48 times [2022-03-03 18:40:03,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:03,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86718461] [2022-03-03 18:40:03,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:03,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:03,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:03,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:03,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86718461] [2022-03-03 18:40:03,839 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86718461] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:03,839 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:03,839 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:03,839 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296187921] [2022-03-03 18:40:03,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:03,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:03,839 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:03,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:03,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:03,839 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) [2022-03-03 18:40:03,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:03,970 INFO L93 Difference]: Finished difference Result 3299 states and 12185 transitions. [2022-03-03 18:40:03,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:03,971 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:03,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:03,977 INFO L225 Difference]: With dead ends: 3299 [2022-03-03 18:40:03,977 INFO L226 Difference]: Without dead ends: 2991 [2022-03-03 18:40:03,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:03,978 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 [2022-03-03 18:40:03,978 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] [2022-03-03 18:40:03,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2022-03-03 18:40:04,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 1458. [2022-03-03 18:40:04,004 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) [2022-03-03 18:40:04,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5819 transitions. [2022-03-03 18:40:04,029 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5819 transitions. Word has length 25 [2022-03-03 18:40:04,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:04,030 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5819 transitions. [2022-03-03 18:40:04,030 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) [2022-03-03 18:40:04,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5819 transitions. [2022-03-03 18:40:04,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:04,033 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:04,033 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] [2022-03-03 18:40:04,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-03 18:40:04,033 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:04,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:04,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1259486381, now seen corresponding path program 49 times [2022-03-03 18:40:04,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:04,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241734308] [2022-03-03 18:40:04,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:04,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:04,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:04,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:04,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241734308] [2022-03-03 18:40:04,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241734308] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:04,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:04,187 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:04,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347018038] [2022-03-03 18:40:04,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:04,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:04,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:04,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:04,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:04,187 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) [2022-03-03 18:40:04,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:04,313 INFO L93 Difference]: Finished difference Result 3080 states and 11471 transitions. [2022-03-03 18:40:04,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:04,313 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:04,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:04,322 INFO L225 Difference]: With dead ends: 3080 [2022-03-03 18:40:04,322 INFO L226 Difference]: Without dead ends: 2921 [2022-03-03 18:40:04,323 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 [2022-03-03 18:40:04,323 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 [2022-03-03 18:40:04,323 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] [2022-03-03 18:40:04,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2022-03-03 18:40:04,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 1514. [2022-03-03 18:40:04,360 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) [2022-03-03 18:40:04,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 6043 transitions. [2022-03-03 18:40:04,365 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 6043 transitions. Word has length 25 [2022-03-03 18:40:04,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:04,365 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 6043 transitions. [2022-03-03 18:40:04,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:04,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 6043 transitions. [2022-03-03 18:40:04,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:04,368 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:04,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:04,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-03 18:40:04,369 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:04,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:04,369 INFO L85 PathProgramCache]: Analyzing trace with hash 2027182931, now seen corresponding path program 50 times [2022-03-03 18:40:04,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:04,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678858695] [2022-03-03 18:40:04,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:04,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:04,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:04,519 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:04,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678858695] [2022-03-03 18:40:04,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678858695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:04,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:04,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:04,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949947686] [2022-03-03 18:40:04,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:04,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:04,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:04,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:04,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:04,521 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) [2022-03-03 18:40:04,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:04,650 INFO L93 Difference]: Finished difference Result 3143 states and 11678 transitions. [2022-03-03 18:40:04,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:04,650 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 [2022-03-03 18:40:04,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:04,659 INFO L225 Difference]: With dead ends: 3143 [2022-03-03 18:40:04,659 INFO L226 Difference]: Without dead ends: 2889 [2022-03-03 18:40:04,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:04,659 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 [2022-03-03 18:40:04,660 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] [2022-03-03 18:40:04,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states. [2022-03-03 18:40:04,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 1482. [2022-03-03 18:40:04,694 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) [2022-03-03 18:40:04,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5915 transitions. [2022-03-03 18:40:04,699 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5915 transitions. Word has length 25 [2022-03-03 18:40:04,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:04,699 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5915 transitions. [2022-03-03 18:40:04,699 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) [2022-03-03 18:40:04,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5915 transitions. [2022-03-03 18:40:04,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:04,702 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:04,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:04,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-03 18:40:04,702 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:04,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:04,703 INFO L85 PathProgramCache]: Analyzing trace with hash -270452875, now seen corresponding path program 51 times [2022-03-03 18:40:04,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:04,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41001789] [2022-03-03 18:40:04,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:04,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:04,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:04,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:04,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41001789] [2022-03-03 18:40:04,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41001789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:04,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:04,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:04,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089992926] [2022-03-03 18:40:04,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:04,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:04,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:04,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:04,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:04,868 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) [2022-03-03 18:40:04,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:04,982 INFO L93 Difference]: Finished difference Result 3029 states and 11272 transitions. [2022-03-03 18:40:04,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:04,982 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 [2022-03-03 18:40:04,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:04,988 INFO L225 Difference]: With dead ends: 3029 [2022-03-03 18:40:04,988 INFO L226 Difference]: Without dead ends: 2870 [2022-03-03 18:40:04,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:04,988 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 [2022-03-03 18:40:04,989 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] [2022-03-03 18:40:04,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2022-03-03 18:40:05,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 1498. [2022-03-03 18:40:05,014 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) [2022-03-03 18:40:05,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5963 transitions. [2022-03-03 18:40:05,017 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5963 transitions. Word has length 25 [2022-03-03 18:40:05,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:05,018 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5963 transitions. [2022-03-03 18:40:05,018 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) [2022-03-03 18:40:05,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5963 transitions. [2022-03-03 18:40:05,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:05,020 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:05,020 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] [2022-03-03 18:40:05,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-03 18:40:05,020 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:05,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:05,021 INFO L85 PathProgramCache]: Analyzing trace with hash 737845109, now seen corresponding path program 52 times [2022-03-03 18:40:05,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:05,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925105632] [2022-03-03 18:40:05,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:05,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:05,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:05,171 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:05,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925105632] [2022-03-03 18:40:05,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925105632] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:05,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:05,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:05,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844405938] [2022-03-03 18:40:05,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:05,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:05,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:05,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:05,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:05,172 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) [2022-03-03 18:40:05,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:05,338 INFO L93 Difference]: Finished difference Result 3057 states and 11360 transitions. [2022-03-03 18:40:05,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:05,338 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:05,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:05,346 INFO L225 Difference]: With dead ends: 3057 [2022-03-03 18:40:05,346 INFO L226 Difference]: Without dead ends: 2854 [2022-03-03 18:40:05,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:05,347 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 [2022-03-03 18:40:05,347 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] [2022-03-03 18:40:05,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2022-03-03 18:40:05,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 1482. [2022-03-03 18:40:05,371 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) [2022-03-03 18:40:05,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5907 transitions. [2022-03-03 18:40:05,375 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5907 transitions. Word has length 25 [2022-03-03 18:40:05,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:05,375 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5907 transitions. [2022-03-03 18:40:05,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:05,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5907 transitions. [2022-03-03 18:40:05,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:05,377 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:05,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:05,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-03 18:40:05,377 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:05,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:05,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1868875915, now seen corresponding path program 53 times [2022-03-03 18:40:05,378 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:05,378 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782357832] [2022-03-03 18:40:05,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:05,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:05,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:05,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:05,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782357832] [2022-03-03 18:40:05,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782357832] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:05,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:05,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:05,531 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712865930] [2022-03-03 18:40:05,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:05,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:05,531 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:05,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:05,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:05,531 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) [2022-03-03 18:40:05,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:05,675 INFO L93 Difference]: Finished difference Result 3150 states and 11714 transitions. [2022-03-03 18:40:05,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:05,676 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 [2022-03-03 18:40:05,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:05,689 INFO L225 Difference]: With dead ends: 3150 [2022-03-03 18:40:05,689 INFO L226 Difference]: Without dead ends: 2963 [2022-03-03 18:40:05,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:05,690 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 [2022-03-03 18:40:05,690 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] [2022-03-03 18:40:05,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2963 states. [2022-03-03 18:40:05,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2963 to 1528. [2022-03-03 18:40:05,737 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) [2022-03-03 18:40:05,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 6064 transitions. [2022-03-03 18:40:05,742 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 6064 transitions. Word has length 25 [2022-03-03 18:40:05,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:05,743 INFO L470 AbstractCegarLoop]: Abstraction has 1528 states and 6064 transitions. [2022-03-03 18:40:05,743 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) [2022-03-03 18:40:05,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 6064 transitions. [2022-03-03 18:40:05,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:05,746 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:05,747 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:05,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-03 18:40:05,747 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:05,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:05,747 INFO L85 PathProgramCache]: Analyzing trace with hash 2072951891, now seen corresponding path program 54 times [2022-03-03 18:40:05,747 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:05,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917935554] [2022-03-03 18:40:05,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:05,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:05,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:05,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:05,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917935554] [2022-03-03 18:40:05,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917935554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:05,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:05,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:05,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437230946] [2022-03-03 18:40:05,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:05,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:05,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:05,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:05,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:05,891 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) [2022-03-03 18:40:06,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:06,023 INFO L93 Difference]: Finished difference Result 3185 states and 11803 transitions. [2022-03-03 18:40:06,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:06,024 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 [2022-03-03 18:40:06,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:06,032 INFO L225 Difference]: With dead ends: 3185 [2022-03-03 18:40:06,032 INFO L226 Difference]: Without dead ends: 2901 [2022-03-03 18:40:06,033 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 [2022-03-03 18:40:06,033 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 [2022-03-03 18:40:06,033 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] [2022-03-03 18:40:06,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2022-03-03 18:40:06,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 1466. [2022-03-03 18:40:06,071 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) [2022-03-03 18:40:06,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 5851 transitions. [2022-03-03 18:40:06,076 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 5851 transitions. Word has length 25 [2022-03-03 18:40:06,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:06,076 INFO L470 AbstractCegarLoop]: Abstraction has 1466 states and 5851 transitions. [2022-03-03 18:40:06,076 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) [2022-03-03 18:40:06,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 5851 transitions. [2022-03-03 18:40:06,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:06,079 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:06,080 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] [2022-03-03 18:40:06,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-03 18:40:06,080 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:06,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:06,080 INFO L85 PathProgramCache]: Analyzing trace with hash 450115381, now seen corresponding path program 55 times [2022-03-03 18:40:06,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:06,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741791475] [2022-03-03 18:40:06,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:06,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:06,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:06,236 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:06,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741791475] [2022-03-03 18:40:06,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741791475] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:06,236 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:06,236 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:06,236 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209312994] [2022-03-03 18:40:06,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:06,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:06,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:06,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:06,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:06,237 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) [2022-03-03 18:40:06,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:06,369 INFO L93 Difference]: Finished difference Result 3074 states and 11444 transitions. [2022-03-03 18:40:06,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:06,369 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 [2022-03-03 18:40:06,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:06,376 INFO L225 Difference]: With dead ends: 3074 [2022-03-03 18:40:06,376 INFO L226 Difference]: Without dead ends: 2915 [2022-03-03 18:40:06,376 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 [2022-03-03 18:40:06,376 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 108 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:06,376 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] [2022-03-03 18:40:06,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2022-03-03 18:40:06,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 1514. [2022-03-03 18:40:06,402 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) [2022-03-03 18:40:06,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 6035 transitions. [2022-03-03 18:40:06,406 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 6035 transitions. Word has length 25 [2022-03-03 18:40:06,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:06,406 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 6035 transitions. [2022-03-03 18:40:06,406 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) [2022-03-03 18:40:06,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 6035 transitions. [2022-03-03 18:40:06,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:06,408 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:06,408 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] [2022-03-03 18:40:06,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-03 18:40:06,408 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:06,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:06,409 INFO L85 PathProgramCache]: Analyzing trace with hash -558182603, now seen corresponding path program 56 times [2022-03-03 18:40:06,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:06,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270815307] [2022-03-03 18:40:06,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:06,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:06,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:06,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:06,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270815307] [2022-03-03 18:40:06,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270815307] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:06,557 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:06,557 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:06,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081263300] [2022-03-03 18:40:06,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:06,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:06,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:06,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:06,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:06,558 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) [2022-03-03 18:40:06,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:06,688 INFO L93 Difference]: Finished difference Result 3137 states and 11651 transitions. [2022-03-03 18:40:06,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:06,688 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 [2022-03-03 18:40:06,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:06,697 INFO L225 Difference]: With dead ends: 3137 [2022-03-03 18:40:06,697 INFO L226 Difference]: Without dead ends: 2883 [2022-03-03 18:40:06,697 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 [2022-03-03 18:40:06,698 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 112 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:06,698 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] [2022-03-03 18:40:06,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2022-03-03 18:40:06,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 1482. [2022-03-03 18:40:06,725 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) [2022-03-03 18:40:06,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5907 transitions. [2022-03-03 18:40:06,728 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5907 transitions. Word has length 25 [2022-03-03 18:40:06,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:06,729 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5907 transitions. [2022-03-03 18:40:06,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:06,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5907 transitions. [2022-03-03 18:40:06,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:06,731 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:06,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:06,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-03 18:40:06,731 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:06,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:06,732 INFO L85 PathProgramCache]: Analyzing trace with hash 455868149, now seen corresponding path program 57 times [2022-03-03 18:40:06,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:06,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126568144] [2022-03-03 18:40:06,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:06,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:06,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:06,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:06,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126568144] [2022-03-03 18:40:06,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126568144] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:06,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:06,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:06,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25246116] [2022-03-03 18:40:06,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:06,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:06,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:06,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:06,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:06,884 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) [2022-03-03 18:40:07,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:07,044 INFO L93 Difference]: Finished difference Result 3019 states and 11233 transitions. [2022-03-03 18:40:07,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:07,045 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 [2022-03-03 18:40:07,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:07,054 INFO L225 Difference]: With dead ends: 3019 [2022-03-03 18:40:07,054 INFO L226 Difference]: Without dead ends: 2860 [2022-03-03 18:40:07,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:07,055 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 [2022-03-03 18:40:07,055 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] [2022-03-03 18:40:07,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2860 states. [2022-03-03 18:40:07,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2860 to 1498. [2022-03-03 18:40:07,096 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) [2022-03-03 18:40:07,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5955 transitions. [2022-03-03 18:40:07,102 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5955 transitions. Word has length 25 [2022-03-03 18:40:07,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:07,102 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5955 transitions. [2022-03-03 18:40:07,102 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) [2022-03-03 18:40:07,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5955 transitions. [2022-03-03 18:40:07,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:07,106 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:07,106 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] [2022-03-03 18:40:07,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-03 18:40:07,106 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:07,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:07,107 INFO L85 PathProgramCache]: Analyzing trace with hash 2136364789, now seen corresponding path program 58 times [2022-03-03 18:40:07,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:07,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291851981] [2022-03-03 18:40:07,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:07,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:07,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:07,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:07,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291851981] [2022-03-03 18:40:07,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291851981] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:07,255 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:07,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:07,255 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600417899] [2022-03-03 18:40:07,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:07,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:07,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:07,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:07,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:07,256 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) [2022-03-03 18:40:07,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:07,392 INFO L93 Difference]: Finished difference Result 3043 states and 11309 transitions. [2022-03-03 18:40:07,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:07,393 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:07,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:07,401 INFO L225 Difference]: With dead ends: 3043 [2022-03-03 18:40:07,401 INFO L226 Difference]: Without dead ends: 2844 [2022-03-03 18:40:07,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:07,402 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 [2022-03-03 18:40:07,402 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] [2022-03-03 18:40:07,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2022-03-03 18:40:07,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 1482. [2022-03-03 18:40:07,436 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) [2022-03-03 18:40:07,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5899 transitions. [2022-03-03 18:40:07,441 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5899 transitions. Word has length 25 [2022-03-03 18:40:07,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:07,441 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5899 transitions. [2022-03-03 18:40:07,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:07,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5899 transitions. [2022-03-03 18:40:07,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:07,444 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:07,444 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] [2022-03-03 18:40:07,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-03 18:40:07,444 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:07,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:07,445 INFO L85 PathProgramCache]: Analyzing trace with hash -470356235, now seen corresponding path program 59 times [2022-03-03 18:40:07,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:07,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899815882] [2022-03-03 18:40:07,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:07,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:07,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:07,606 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:07,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899815882] [2022-03-03 18:40:07,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899815882] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:07,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:07,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:07,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304186239] [2022-03-03 18:40:07,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:07,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:07,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:07,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:07,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:07,607 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) [2022-03-03 18:40:07,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:07,751 INFO L93 Difference]: Finished difference Result 3134 states and 11656 transitions. [2022-03-03 18:40:07,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:07,751 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 [2022-03-03 18:40:07,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:07,759 INFO L225 Difference]: With dead ends: 3134 [2022-03-03 18:40:07,760 INFO L226 Difference]: Without dead ends: 2951 [2022-03-03 18:40:07,760 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 [2022-03-03 18:40:07,760 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 [2022-03-03 18:40:07,760 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] [2022-03-03 18:40:07,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2022-03-03 18:40:07,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 1526. [2022-03-03 18:40:07,794 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) [2022-03-03 18:40:07,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 6051 transitions. [2022-03-03 18:40:07,799 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 6051 transitions. Word has length 25 [2022-03-03 18:40:07,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:07,799 INFO L470 AbstractCegarLoop]: Abstraction has 1526 states and 6051 transitions. [2022-03-03 18:40:07,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:07,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 6051 transitions. [2022-03-03 18:40:07,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:07,802 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:07,803 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] [2022-03-03 18:40:07,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-03 18:40:07,803 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:07,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:07,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1474688173, now seen corresponding path program 60 times [2022-03-03 18:40:07,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:07,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658287297] [2022-03-03 18:40:07,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:07,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:07,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:07,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:07,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:07,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658287297] [2022-03-03 18:40:07,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658287297] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:07,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:07,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:07,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408556281] [2022-03-03 18:40:07,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:07,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:07,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:07,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:07,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:07,956 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) [2022-03-03 18:40:08,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:08,094 INFO L93 Difference]: Finished difference Result 3173 states and 11759 transitions. [2022-03-03 18:40:08,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:08,094 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:08,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:08,103 INFO L225 Difference]: With dead ends: 3173 [2022-03-03 18:40:08,103 INFO L226 Difference]: Without dead ends: 2891 [2022-03-03 18:40:08,104 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 [2022-03-03 18:40:08,104 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 [2022-03-03 18:40:08,104 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] [2022-03-03 18:40:08,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2891 states. [2022-03-03 18:40:08,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2891 to 1466. [2022-03-03 18:40:08,139 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) [2022-03-03 18:40:08,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 5843 transitions. [2022-03-03 18:40:08,144 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 5843 transitions. Word has length 25 [2022-03-03 18:40:08,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:08,144 INFO L470 AbstractCegarLoop]: Abstraction has 1466 states and 5843 transitions. [2022-03-03 18:40:08,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:08,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 5843 transitions. [2022-03-03 18:40:08,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:08,147 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:08,147 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] [2022-03-03 18:40:08,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-03 18:40:08,147 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:08,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:08,148 INFO L85 PathProgramCache]: Analyzing trace with hash -8519017, now seen corresponding path program 61 times [2022-03-03 18:40:08,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:08,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816226746] [2022-03-03 18:40:08,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:08,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:08,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:08,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:08,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816226746] [2022-03-03 18:40:08,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816226746] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:08,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:08,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:08,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45463443] [2022-03-03 18:40:08,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:08,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:08,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:08,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:08,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:08,304 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) [2022-03-03 18:40:08,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:08,441 INFO L93 Difference]: Finished difference Result 2948 states and 10970 transitions. [2022-03-03 18:40:08,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:08,441 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 [2022-03-03 18:40:08,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:08,450 INFO L225 Difference]: With dead ends: 2948 [2022-03-03 18:40:08,450 INFO L226 Difference]: Without dead ends: 2789 [2022-03-03 18:40:08,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:08,451 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 [2022-03-03 18:40:08,451 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] [2022-03-03 18:40:08,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2022-03-03 18:40:08,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 1490. [2022-03-03 18:40:08,514 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) [2022-03-03 18:40:08,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 5927 transitions. [2022-03-03 18:40:08,520 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 5927 transitions. Word has length 25 [2022-03-03 18:40:08,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:08,520 INFO L470 AbstractCegarLoop]: Abstraction has 1490 states and 5927 transitions. [2022-03-03 18:40:08,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:08,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 5927 transitions. [2022-03-03 18:40:08,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:08,522 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:08,523 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] [2022-03-03 18:40:08,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-03 18:40:08,523 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:08,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:08,523 INFO L85 PathProgramCache]: Analyzing trace with hash 999778967, now seen corresponding path program 62 times [2022-03-03 18:40:08,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:08,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390755538] [2022-03-03 18:40:08,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:08,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:08,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:08,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:08,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390755538] [2022-03-03 18:40:08,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390755538] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:08,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:08,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:08,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505920953] [2022-03-03 18:40:08,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:08,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:08,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:08,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:08,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:08,664 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) [2022-03-03 18:40:08,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:08,797 INFO L93 Difference]: Finished difference Result 2976 states and 11058 transitions. [2022-03-03 18:40:08,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:08,797 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 [2022-03-03 18:40:08,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:08,828 INFO L225 Difference]: With dead ends: 2976 [2022-03-03 18:40:08,828 INFO L226 Difference]: Without dead ends: 2773 [2022-03-03 18:40:08,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:08,829 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 130 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:08,829 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] [2022-03-03 18:40:08,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2022-03-03 18:40:08,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 1474. [2022-03-03 18:40:08,887 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) [2022-03-03 18:40:08,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5871 transitions. [2022-03-03 18:40:08,895 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5871 transitions. Word has length 25 [2022-03-03 18:40:08,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:08,895 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5871 transitions. [2022-03-03 18:40:08,895 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) [2022-03-03 18:40:08,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5871 transitions. [2022-03-03 18:40:08,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:08,897 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:08,898 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] [2022-03-03 18:40:08,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-03 18:40:08,898 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:08,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:08,898 INFO L85 PathProgramCache]: Analyzing trace with hash -855315979, now seen corresponding path program 63 times [2022-03-03 18:40:08,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:08,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908930582] [2022-03-03 18:40:08,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:08,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:09,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:09,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:09,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908930582] [2022-03-03 18:40:09,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908930582] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:09,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:09,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:09,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518441237] [2022-03-03 18:40:09,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:09,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:09,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:09,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:09,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:09,046 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) [2022-03-03 18:40:09,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:09,177 INFO L93 Difference]: Finished difference Result 2944 states and 10950 transitions. [2022-03-03 18:40:09,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:09,177 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 [2022-03-03 18:40:09,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:09,188 INFO L225 Difference]: With dead ends: 2944 [2022-03-03 18:40:09,189 INFO L226 Difference]: Without dead ends: 2785 [2022-03-03 18:40:09,189 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 [2022-03-03 18:40:09,189 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 [2022-03-03 18:40:09,189 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] [2022-03-03 18:40:09,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2022-03-03 18:40:09,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 1490. [2022-03-03 18:40:09,228 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) [2022-03-03 18:40:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 5919 transitions. [2022-03-03 18:40:09,234 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 5919 transitions. Word has length 25 [2022-03-03 18:40:09,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:09,234 INFO L470 AbstractCegarLoop]: Abstraction has 1490 states and 5919 transitions. [2022-03-03 18:40:09,234 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) [2022-03-03 18:40:09,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 5919 transitions. [2022-03-03 18:40:09,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:09,237 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:09,237 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] [2022-03-03 18:40:09,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-03 18:40:09,238 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:09,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:09,238 INFO L85 PathProgramCache]: Analyzing trace with hash -885175657, now seen corresponding path program 64 times [2022-03-03 18:40:09,238 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:09,238 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593877714] [2022-03-03 18:40:09,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:09,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:09,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:09,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:09,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593877714] [2022-03-03 18:40:09,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593877714] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:09,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:09,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:09,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832702510] [2022-03-03 18:40:09,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:09,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:09,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:09,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:09,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:09,384 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) [2022-03-03 18:40:09,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:09,527 INFO L93 Difference]: Finished difference Result 2968 states and 11026 transitions. [2022-03-03 18:40:09,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:09,531 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:09,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:09,542 INFO L225 Difference]: With dead ends: 2968 [2022-03-03 18:40:09,543 INFO L226 Difference]: Without dead ends: 2769 [2022-03-03 18:40:09,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:09,543 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 [2022-03-03 18:40:09,543 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] [2022-03-03 18:40:09,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2022-03-03 18:40:09,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 1474. [2022-03-03 18:40:09,582 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) [2022-03-03 18:40:09,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5863 transitions. [2022-03-03 18:40:09,587 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5863 transitions. Word has length 25 [2022-03-03 18:40:09,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:09,587 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5863 transitions. [2022-03-03 18:40:09,587 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) [2022-03-03 18:40:09,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5863 transitions. [2022-03-03 18:40:09,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:09,590 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:09,590 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] [2022-03-03 18:40:09,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-03 18:40:09,590 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:09,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:09,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1049346711, now seen corresponding path program 65 times [2022-03-03 18:40:09,591 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:09,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150773924] [2022-03-03 18:40:09,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:09,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:09,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:09,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:09,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150773924] [2022-03-03 18:40:09,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150773924] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:09,734 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:09,734 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:09,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547261129] [2022-03-03 18:40:09,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:09,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:09,735 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:09,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:09,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:09,735 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) [2022-03-03 18:40:09,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:09,869 INFO L93 Difference]: Finished difference Result 3012 states and 11202 transitions. [2022-03-03 18:40:09,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:09,869 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:09,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:09,881 INFO L225 Difference]: With dead ends: 3012 [2022-03-03 18:40:09,882 INFO L226 Difference]: Without dead ends: 2825 [2022-03-03 18:40:09,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:09,882 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 [2022-03-03 18:40:09,882 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] [2022-03-03 18:40:09,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2825 states. [2022-03-03 18:40:09,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2825 to 1502. [2022-03-03 18:40:09,922 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) [2022-03-03 18:40:09,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 5951 transitions. [2022-03-03 18:40:09,928 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 5951 transitions. Word has length 25 [2022-03-03 18:40:09,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:09,928 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 5951 transitions. [2022-03-03 18:40:09,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:09,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 5951 transitions. [2022-03-03 18:40:09,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:09,931 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:09,932 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] [2022-03-03 18:40:09,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-03 18:40:09,932 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:09,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:09,932 INFO L85 PathProgramCache]: Analyzing trace with hash -993990283, now seen corresponding path program 66 times [2022-03-03 18:40:09,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:09,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247936071] [2022-03-03 18:40:09,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:09,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:09,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:10,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:10,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:10,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247936071] [2022-03-03 18:40:10,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247936071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:10,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:10,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:10,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365367773] [2022-03-03 18:40:10,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:10,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:10,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:10,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:10,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:10,081 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) [2022-03-03 18:40:10,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:10,204 INFO L93 Difference]: Finished difference Result 3008 states and 11162 transitions. [2022-03-03 18:40:10,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:10,204 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:10,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:10,214 INFO L225 Difference]: With dead ends: 3008 [2022-03-03 18:40:10,214 INFO L226 Difference]: Without dead ends: 2789 [2022-03-03 18:40:10,215 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 [2022-03-03 18:40:10,215 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 [2022-03-03 18:40:10,215 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] [2022-03-03 18:40:10,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2022-03-03 18:40:10,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 1466. [2022-03-03 18:40:10,251 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) [2022-03-03 18:40:10,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 5839 transitions. [2022-03-03 18:40:10,256 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 5839 transitions. Word has length 25 [2022-03-03 18:40:10,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:10,256 INFO L470 AbstractCegarLoop]: Abstraction has 1466 states and 5839 transitions. [2022-03-03 18:40:10,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:10,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 5839 transitions. [2022-03-03 18:40:10,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:10,260 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:10,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:10,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-03 18:40:10,260 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:10,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:10,260 INFO L85 PathProgramCache]: Analyzing trace with hash -43623785, now seen corresponding path program 67 times [2022-03-03 18:40:10,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:10,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104325968] [2022-03-03 18:40:10,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:10,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:10,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:10,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:10,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104325968] [2022-03-03 18:40:10,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104325968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:10,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:10,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:10,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247010408] [2022-03-03 18:40:10,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:10,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:10,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:10,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:10,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:10,410 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) [2022-03-03 18:40:10,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:10,552 INFO L93 Difference]: Finished difference Result 3147 states and 11741 transitions. [2022-03-03 18:40:10,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:10,552 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:10,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:10,559 INFO L225 Difference]: With dead ends: 3147 [2022-03-03 18:40:10,559 INFO L226 Difference]: Without dead ends: 2960 [2022-03-03 18:40:10,559 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 [2022-03-03 18:40:10,559 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 [2022-03-03 18:40:10,560 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] [2022-03-03 18:40:10,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2022-03-03 18:40:10,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 1516. [2022-03-03 18:40:10,588 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) [2022-03-03 18:40:10,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 6028 transitions. [2022-03-03 18:40:10,592 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 6028 transitions. Word has length 25 [2022-03-03 18:40:10,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:10,592 INFO L470 AbstractCegarLoop]: Abstraction has 1516 states and 6028 transitions. [2022-03-03 18:40:10,593 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) [2022-03-03 18:40:10,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 6028 transitions. [2022-03-03 18:40:10,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:10,595 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:10,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:10,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-03 18:40:10,596 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:10,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:10,596 INFO L85 PathProgramCache]: Analyzing trace with hash -2086960779, now seen corresponding path program 68 times [2022-03-03 18:40:10,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:10,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675937800] [2022-03-03 18:40:10,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:10,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:10,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:10,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:10,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675937800] [2022-03-03 18:40:10,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675937800] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:10,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:10,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:10,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283998080] [2022-03-03 18:40:10,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:10,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:10,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:10,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:10,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:10,739 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) [2022-03-03 18:40:10,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:10,866 INFO L93 Difference]: Finished difference Result 3143 states and 11701 transitions. [2022-03-03 18:40:10,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:10,866 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 [2022-03-03 18:40:10,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:10,873 INFO L225 Difference]: With dead ends: 3143 [2022-03-03 18:40:10,873 INFO L226 Difference]: Without dead ends: 2932 [2022-03-03 18:40:10,873 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 [2022-03-03 18:40:10,873 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 [2022-03-03 18:40:10,874 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] [2022-03-03 18:40:10,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2022-03-03 18:40:10,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 1488. [2022-03-03 18:40:10,911 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) [2022-03-03 18:40:10,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 5926 transitions. [2022-03-03 18:40:10,916 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 5926 transitions. Word has length 25 [2022-03-03 18:40:10,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:10,916 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 5926 transitions. [2022-03-03 18:40:10,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:10,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 5926 transitions. [2022-03-03 18:40:10,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:10,920 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:10,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:10,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-03 18:40:10,920 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:10,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:10,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1161025397, now seen corresponding path program 69 times [2022-03-03 18:40:10,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:10,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059833314] [2022-03-03 18:40:10,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:10,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:11,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:11,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:11,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059833314] [2022-03-03 18:40:11,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059833314] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:11,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:11,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:11,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908869234] [2022-03-03 18:40:11,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:11,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:11,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:11,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:11,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:11,059 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) [2022-03-03 18:40:11,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:11,175 INFO L93 Difference]: Finished difference Result 3204 states and 11929 transitions. [2022-03-03 18:40:11,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:11,176 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:11,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:11,183 INFO L225 Difference]: With dead ends: 3204 [2022-03-03 18:40:11,183 INFO L226 Difference]: Without dead ends: 3017 [2022-03-03 18:40:11,183 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 [2022-03-03 18:40:11,184 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 [2022-03-03 18:40:11,184 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] [2022-03-03 18:40:11,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2022-03-03 18:40:11,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 1534. [2022-03-03 18:40:11,211 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) [2022-03-03 18:40:11,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 6083 transitions. [2022-03-03 18:40:11,214 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 6083 transitions. Word has length 25 [2022-03-03 18:40:11,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:11,215 INFO L470 AbstractCegarLoop]: Abstraction has 1534 states and 6083 transitions. [2022-03-03 18:40:11,215 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) [2022-03-03 18:40:11,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 6083 transitions. [2022-03-03 18:40:11,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:11,217 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:11,217 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] [2022-03-03 18:40:11,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-03 18:40:11,217 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:11,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:11,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1241915253, now seen corresponding path program 70 times [2022-03-03 18:40:11,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:11,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610154864] [2022-03-03 18:40:11,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:11,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:11,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:11,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:11,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610154864] [2022-03-03 18:40:11,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610154864] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:11,400 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:11,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:11,400 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80057190] [2022-03-03 18:40:11,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:11,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:11,400 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:11,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:11,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:11,401 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) [2022-03-03 18:40:11,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:11,524 INFO L93 Difference]: Finished difference Result 3239 states and 12018 transitions. [2022-03-03 18:40:11,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:11,525 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:11,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:11,533 INFO L225 Difference]: With dead ends: 3239 [2022-03-03 18:40:11,533 INFO L226 Difference]: Without dead ends: 2971 [2022-03-03 18:40:11,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:11,534 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 [2022-03-03 18:40:11,534 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] [2022-03-03 18:40:11,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2022-03-03 18:40:11,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 1488. [2022-03-03 18:40:11,568 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) [2022-03-03 18:40:11,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 5904 transitions. [2022-03-03 18:40:11,571 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 5904 transitions. Word has length 25 [2022-03-03 18:40:11,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:11,572 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 5904 transitions. [2022-03-03 18:40:11,572 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) [2022-03-03 18:40:11,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 5904 transitions. [2022-03-03 18:40:11,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:11,574 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:11,574 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] [2022-03-03 18:40:11,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-03 18:40:11,574 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:11,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:11,575 INFO L85 PathProgramCache]: Analyzing trace with hash 2143373011, now seen corresponding path program 71 times [2022-03-03 18:40:11,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:11,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435755408] [2022-03-03 18:40:11,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:11,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:11,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:11,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:11,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435755408] [2022-03-03 18:40:11,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435755408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:11,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:11,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:11,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30647665] [2022-03-03 18:40:11,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:11,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:11,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:11,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:11,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:11,718 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) [2022-03-03 18:40:11,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:11,849 INFO L93 Difference]: Finished difference Result 3194 states and 11876 transitions. [2022-03-03 18:40:11,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:11,849 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 [2022-03-03 18:40:11,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:11,857 INFO L225 Difference]: With dead ends: 3194 [2022-03-03 18:40:11,857 INFO L226 Difference]: Without dead ends: 3011 [2022-03-03 18:40:11,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:11,858 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 [2022-03-03 18:40:11,858 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] [2022-03-03 18:40:11,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2022-03-03 18:40:11,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 1532. [2022-03-03 18:40:11,894 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) [2022-03-03 18:40:11,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 6056 transitions. [2022-03-03 18:40:11,897 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 6056 transitions. Word has length 25 [2022-03-03 18:40:11,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:11,898 INFO L470 AbstractCegarLoop]: Abstraction has 1532 states and 6056 transitions. [2022-03-03 18:40:11,898 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) [2022-03-03 18:40:11,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 6056 transitions. [2022-03-03 18:40:11,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:11,901 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:11,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:11,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-03 18:40:11,901 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:11,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:11,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1073854005, now seen corresponding path program 72 times [2022-03-03 18:40:11,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:11,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024840176] [2022-03-03 18:40:11,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:11,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:12,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:12,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:12,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024840176] [2022-03-03 18:40:12,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024840176] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:12,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:12,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:12,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820084522] [2022-03-03 18:40:12,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:12,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:12,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:12,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:12,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:12,045 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) [2022-03-03 18:40:12,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:12,187 INFO L93 Difference]: Finished difference Result 3233 states and 11979 transitions. [2022-03-03 18:40:12,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:12,187 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 [2022-03-03 18:40:12,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:12,196 INFO L225 Difference]: With dead ends: 3233 [2022-03-03 18:40:12,196 INFO L226 Difference]: Without dead ends: 2937 [2022-03-03 18:40:12,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:12,197 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 [2022-03-03 18:40:12,198 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] [2022-03-03 18:40:12,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2022-03-03 18:40:12,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1458. [2022-03-03 18:40:12,233 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) [2022-03-03 18:40:12,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5815 transitions. [2022-03-03 18:40:12,238 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5815 transitions. Word has length 25 [2022-03-03 18:40:12,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:12,238 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5815 transitions. [2022-03-03 18:40:12,238 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) [2022-03-03 18:40:12,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5815 transitions. [2022-03-03 18:40:12,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:12,241 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:12,241 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] [2022-03-03 18:40:12,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-03 18:40:12,241 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:12,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:12,242 INFO L85 PathProgramCache]: Analyzing trace with hash 442501743, now seen corresponding path program 73 times [2022-03-03 18:40:12,242 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:12,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882284986] [2022-03-03 18:40:12,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:12,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:12,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:12,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882284986] [2022-03-03 18:40:12,395 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882284986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:12,395 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:12,395 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:12,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770990260] [2022-03-03 18:40:12,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:12,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:12,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:12,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:12,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:12,396 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) [2022-03-03 18:40:12,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:12,512 INFO L93 Difference]: Finished difference Result 2849 states and 10577 transitions. [2022-03-03 18:40:12,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:12,512 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:12,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:12,518 INFO L225 Difference]: With dead ends: 2849 [2022-03-03 18:40:12,518 INFO L226 Difference]: Without dead ends: 2690 [2022-03-03 18:40:12,518 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 [2022-03-03 18:40:12,518 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 105 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:12,519 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] [2022-03-03 18:40:12,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2022-03-03 18:40:12,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 1486. [2022-03-03 18:40:12,551 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) [2022-03-03 18:40:12,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5919 transitions. [2022-03-03 18:40:12,556 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5919 transitions. Word has length 25 [2022-03-03 18:40:12,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:12,556 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5919 transitions. [2022-03-03 18:40:12,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:12,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5919 transitions. [2022-03-03 18:40:12,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:12,559 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:12,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:12,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-03 18:40:12,560 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:12,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:12,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1147433007, now seen corresponding path program 74 times [2022-03-03 18:40:12,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:12,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128215520] [2022-03-03 18:40:12,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:12,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:12,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:12,687 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:12,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128215520] [2022-03-03 18:40:12,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128215520] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:12,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:12,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:12,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541249689] [2022-03-03 18:40:12,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:12,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:12,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:12,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:12,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:12,688 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) [2022-03-03 18:40:12,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:12,828 INFO L93 Difference]: Finished difference Result 2879 states and 10670 transitions. [2022-03-03 18:40:12,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:12,828 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:12,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:12,834 INFO L225 Difference]: With dead ends: 2879 [2022-03-03 18:40:12,834 INFO L226 Difference]: Without dead ends: 2674 [2022-03-03 18:40:12,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:12,835 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 [2022-03-03 18:40:12,835 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] [2022-03-03 18:40:12,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2022-03-03 18:40:12,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 1470. [2022-03-03 18:40:12,882 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) [2022-03-03 18:40:12,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5863 transitions. [2022-03-03 18:40:12,885 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5863 transitions. Word has length 25 [2022-03-03 18:40:12,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:12,886 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5863 transitions. [2022-03-03 18:40:12,886 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) [2022-03-03 18:40:12,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5863 transitions. [2022-03-03 18:40:12,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:12,889 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:12,890 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] [2022-03-03 18:40:12,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-03 18:40:12,890 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:12,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:12,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1523564369, now seen corresponding path program 75 times [2022-03-03 18:40:12,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:12,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510525957] [2022-03-03 18:40:12,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:12,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:13,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:13,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:13,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510525957] [2022-03-03 18:40:13,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510525957] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:13,029 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:13,029 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:13,029 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825526603] [2022-03-03 18:40:13,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:13,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:13,030 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:13,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:13,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:13,030 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) [2022-03-03 18:40:13,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:13,136 INFO L93 Difference]: Finished difference Result 2847 states and 10564 transitions. [2022-03-03 18:40:13,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:13,136 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:13,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:13,143 INFO L225 Difference]: With dead ends: 2847 [2022-03-03 18:40:13,143 INFO L226 Difference]: Without dead ends: 2688 [2022-03-03 18:40:13,143 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 [2022-03-03 18:40:13,144 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 108 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:13,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 152 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:13,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2688 states. [2022-03-03 18:40:13,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2688 to 1486. [2022-03-03 18:40:13,171 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) [2022-03-03 18:40:13,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5911 transitions. [2022-03-03 18:40:13,174 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5911 transitions. Word has length 25 [2022-03-03 18:40:13,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:13,174 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5911 transitions. [2022-03-03 18:40:13,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:13,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5911 transitions. [2022-03-03 18:40:13,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:13,177 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:13,177 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] [2022-03-03 18:40:13,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-03 18:40:13,177 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:13,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:13,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1763104943, now seen corresponding path program 76 times [2022-03-03 18:40:13,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:13,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342434559] [2022-03-03 18:40:13,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:13,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:13,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:13,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:13,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342434559] [2022-03-03 18:40:13,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342434559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:13,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:13,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:13,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046477222] [2022-03-03 18:40:13,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:13,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:13,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:13,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:13,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:13,301 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) [2022-03-03 18:40:13,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:13,447 INFO L93 Difference]: Finished difference Result 2875 states and 10652 transitions. [2022-03-03 18:40:13,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:13,447 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:13,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:13,453 INFO L225 Difference]: With dead ends: 2875 [2022-03-03 18:40:13,453 INFO L226 Difference]: Without dead ends: 2672 [2022-03-03 18:40:13,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:13,454 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 [2022-03-03 18:40:13,454 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] [2022-03-03 18:40:13,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2022-03-03 18:40:13,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 1470. [2022-03-03 18:40:13,479 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) [2022-03-03 18:40:13,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5855 transitions. [2022-03-03 18:40:13,482 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5855 transitions. Word has length 25 [2022-03-03 18:40:13,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:13,482 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5855 transitions. [2022-03-03 18:40:13,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:13,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5855 transitions. [2022-03-03 18:40:13,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:13,486 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:13,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:13,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-03 18:40:13,486 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:13,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:13,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1354240973, now seen corresponding path program 77 times [2022-03-03 18:40:13,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:13,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225948018] [2022-03-03 18:40:13,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:13,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:13,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:13,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:13,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225948018] [2022-03-03 18:40:13,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225948018] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:13,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:13,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:13,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374001963] [2022-03-03 18:40:13,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:13,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:13,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:13,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:13,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:13,622 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) [2022-03-03 18:40:13,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:13,732 INFO L93 Difference]: Finished difference Result 2921 states and 10833 transitions. [2022-03-03 18:40:13,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:13,733 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:13,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:13,739 INFO L225 Difference]: With dead ends: 2921 [2022-03-03 18:40:13,739 INFO L226 Difference]: Without dead ends: 2732 [2022-03-03 18:40:13,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:13,739 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 [2022-03-03 18:40:13,739 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] [2022-03-03 18:40:13,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2022-03-03 18:40:13,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 1500. [2022-03-03 18:40:13,766 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) [2022-03-03 18:40:13,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5948 transitions. [2022-03-03 18:40:13,771 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5948 transitions. Word has length 25 [2022-03-03 18:40:13,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:13,771 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5948 transitions. [2022-03-03 18:40:13,771 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) [2022-03-03 18:40:13,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5948 transitions. [2022-03-03 18:40:13,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:13,774 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:13,774 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] [2022-03-03 18:40:13,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-03 18:40:13,774 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:13,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:13,775 INFO L85 PathProgramCache]: Analyzing trace with hash 897389329, now seen corresponding path program 78 times [2022-03-03 18:40:13,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:13,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700140313] [2022-03-03 18:40:13,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:13,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:13,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:13,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:13,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700140313] [2022-03-03 18:40:13,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700140313] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:13,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:13,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:13,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905339364] [2022-03-03 18:40:13,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:13,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:13,906 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:13,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:13,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:13,906 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) [2022-03-03 18:40:14,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:14,015 INFO L93 Difference]: Finished difference Result 2919 states and 10798 transitions. [2022-03-03 18:40:14,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:14,016 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 [2022-03-03 18:40:14,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:14,022 INFO L225 Difference]: With dead ends: 2919 [2022-03-03 18:40:14,022 INFO L226 Difference]: Without dead ends: 2694 [2022-03-03 18:40:14,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:14,022 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 [2022-03-03 18:40:14,023 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] [2022-03-03 18:40:14,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2022-03-03 18:40:14,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 1462. [2022-03-03 18:40:14,049 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) [2022-03-03 18:40:14,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 5831 transitions. [2022-03-03 18:40:14,053 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 5831 transitions. Word has length 25 [2022-03-03 18:40:14,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:14,053 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 5831 transitions. [2022-03-03 18:40:14,053 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) [2022-03-03 18:40:14,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 5831 transitions. [2022-03-03 18:40:14,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:14,055 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:14,055 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] [2022-03-03 18:40:14,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-03 18:40:14,055 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:14,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:14,055 INFO L85 PathProgramCache]: Analyzing trace with hash -38400303, now seen corresponding path program 79 times [2022-03-03 18:40:14,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:14,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801144276] [2022-03-03 18:40:14,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:14,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:14,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:14,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:14,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:14,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801144276] [2022-03-03 18:40:14,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801144276] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:14,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:14,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:14,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862802539] [2022-03-03 18:40:14,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:14,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:14,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:14,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:14,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:14,198 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) [2022-03-03 18:40:14,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:14,324 INFO L93 Difference]: Finished difference Result 2843 states and 10554 transitions. [2022-03-03 18:40:14,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:14,324 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:14,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:14,332 INFO L225 Difference]: With dead ends: 2843 [2022-03-03 18:40:14,332 INFO L226 Difference]: Without dead ends: 2684 [2022-03-03 18:40:14,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:14,333 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 [2022-03-03 18:40:14,333 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] [2022-03-03 18:40:14,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2022-03-03 18:40:14,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 1486. [2022-03-03 18:40:14,366 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) [2022-03-03 18:40:14,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5915 transitions. [2022-03-03 18:40:14,371 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5915 transitions. Word has length 25 [2022-03-03 18:40:14,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:14,371 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5915 transitions. [2022-03-03 18:40:14,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:14,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5915 transitions. [2022-03-03 18:40:14,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:14,374 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:14,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:14,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-03 18:40:14,374 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:14,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:14,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1628335053, now seen corresponding path program 80 times [2022-03-03 18:40:14,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:14,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840227005] [2022-03-03 18:40:14,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:14,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:14,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:14,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:14,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840227005] [2022-03-03 18:40:14,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840227005] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:14,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:14,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:14,500 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483697377] [2022-03-03 18:40:14,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:14,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:14,500 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:14,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:14,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:14,501 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) [2022-03-03 18:40:14,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:14,620 INFO L93 Difference]: Finished difference Result 2873 states and 10647 transitions. [2022-03-03 18:40:14,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:14,621 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:14,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:14,626 INFO L225 Difference]: With dead ends: 2873 [2022-03-03 18:40:14,627 INFO L226 Difference]: Without dead ends: 2668 [2022-03-03 18:40:14,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:14,627 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 [2022-03-03 18:40:14,627 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] [2022-03-03 18:40:14,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2022-03-03 18:40:14,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 1470. [2022-03-03 18:40:14,651 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) [2022-03-03 18:40:14,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5859 transitions. [2022-03-03 18:40:14,654 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5859 transitions. Word has length 25 [2022-03-03 18:40:14,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:14,654 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5859 transitions. [2022-03-03 18:40:14,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:14,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5859 transitions. [2022-03-03 18:40:14,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:14,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:14,657 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] [2022-03-03 18:40:14,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-03 18:40:14,657 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:14,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:14,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1726646575, now seen corresponding path program 81 times [2022-03-03 18:40:14,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:14,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210032045] [2022-03-03 18:40:14,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:14,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:14,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:14,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:14,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210032045] [2022-03-03 18:40:14,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210032045] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:14,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:14,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:14,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732668772] [2022-03-03 18:40:14,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:14,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:14,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:14,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:14,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:14,788 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) [2022-03-03 18:40:14,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:14,902 INFO L93 Difference]: Finished difference Result 2837 states and 10529 transitions. [2022-03-03 18:40:14,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:14,902 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 [2022-03-03 18:40:14,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:14,908 INFO L225 Difference]: With dead ends: 2837 [2022-03-03 18:40:14,908 INFO L226 Difference]: Without dead ends: 2678 [2022-03-03 18:40:14,908 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 [2022-03-03 18:40:14,909 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 111 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:14,909 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] [2022-03-03 18:40:14,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2022-03-03 18:40:14,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 1486. [2022-03-03 18:40:14,938 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) [2022-03-03 18:40:14,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5907 transitions. [2022-03-03 18:40:14,941 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5907 transitions. Word has length 25 [2022-03-03 18:40:14,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:14,941 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5907 transitions. [2022-03-03 18:40:14,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:14,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5907 transitions. [2022-03-03 18:40:14,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:14,944 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:14,944 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] [2022-03-03 18:40:14,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-03 18:40:14,944 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:14,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:14,944 INFO L85 PathProgramCache]: Analyzing trace with hash -46149935, now seen corresponding path program 82 times [2022-03-03 18:40:14,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:14,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543515601] [2022-03-03 18:40:14,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:14,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:15,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:15,084 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:15,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543515601] [2022-03-03 18:40:15,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543515601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:15,084 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:15,084 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:15,084 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34098112] [2022-03-03 18:40:15,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:15,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:15,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:15,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:15,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:15,085 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) [2022-03-03 18:40:15,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:15,218 INFO L93 Difference]: Finished difference Result 2861 states and 10605 transitions. [2022-03-03 18:40:15,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:15,219 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:15,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:15,225 INFO L225 Difference]: With dead ends: 2861 [2022-03-03 18:40:15,225 INFO L226 Difference]: Without dead ends: 2662 [2022-03-03 18:40:15,225 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 [2022-03-03 18:40:15,225 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 [2022-03-03 18:40:15,226 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] [2022-03-03 18:40:15,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2022-03-03 18:40:15,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 1470. [2022-03-03 18:40:15,249 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) [2022-03-03 18:40:15,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5851 transitions. [2022-03-03 18:40:15,252 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5851 transitions. Word has length 25 [2022-03-03 18:40:15,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:15,252 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5851 transitions. [2022-03-03 18:40:15,252 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) [2022-03-03 18:40:15,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5851 transitions. [2022-03-03 18:40:15,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:15,254 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:15,255 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] [2022-03-03 18:40:15,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-03 18:40:15,255 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:15,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:15,255 INFO L85 PathProgramCache]: Analyzing trace with hash -309484621, now seen corresponding path program 83 times [2022-03-03 18:40:15,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:15,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628411105] [2022-03-03 18:40:15,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:15,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:15,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:15,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:15,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628411105] [2022-03-03 18:40:15,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628411105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:15,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:15,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:15,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354753127] [2022-03-03 18:40:15,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:15,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:15,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:15,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:15,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:15,373 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) [2022-03-03 18:40:15,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:15,481 INFO L93 Difference]: Finished difference Result 2909 states and 10791 transitions. [2022-03-03 18:40:15,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:15,482 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 [2022-03-03 18:40:15,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:15,488 INFO L225 Difference]: With dead ends: 2909 [2022-03-03 18:40:15,488 INFO L226 Difference]: Without dead ends: 2720 [2022-03-03 18:40:15,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:15,488 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 [2022-03-03 18:40:15,488 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] [2022-03-03 18:40:15,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states. [2022-03-03 18:40:15,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 1498. [2022-03-03 18:40:15,520 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) [2022-03-03 18:40:15,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5939 transitions. [2022-03-03 18:40:15,523 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5939 transitions. Word has length 25 [2022-03-03 18:40:15,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:15,524 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5939 transitions. [2022-03-03 18:40:15,524 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) [2022-03-03 18:40:15,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5939 transitions. [2022-03-03 18:40:15,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:15,526 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:15,526 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] [2022-03-03 18:40:15,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-03 18:40:15,526 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:15,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:15,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1701629167, now seen corresponding path program 84 times [2022-03-03 18:40:15,526 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:15,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839448189] [2022-03-03 18:40:15,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:15,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:15,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:15,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:15,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839448189] [2022-03-03 18:40:15,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839448189] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:15,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:15,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:15,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265345001] [2022-03-03 18:40:15,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:15,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:15,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:15,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:15,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:15,668 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) [2022-03-03 18:40:15,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:15,815 INFO L93 Difference]: Finished difference Result 2903 states and 10746 transitions. [2022-03-03 18:40:15,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:15,816 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 [2022-03-03 18:40:15,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:15,822 INFO L225 Difference]: With dead ends: 2903 [2022-03-03 18:40:15,822 INFO L226 Difference]: Without dead ends: 2684 [2022-03-03 18:40:15,822 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 [2022-03-03 18:40:15,822 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 [2022-03-03 18:40:15,822 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] [2022-03-03 18:40:15,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2022-03-03 18:40:15,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 1462. [2022-03-03 18:40:15,845 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) [2022-03-03 18:40:15,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 5827 transitions. [2022-03-03 18:40:15,848 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 5827 transitions. Word has length 25 [2022-03-03 18:40:15,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:15,849 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 5827 transitions. [2022-03-03 18:40:15,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:15,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 5827 transitions. [2022-03-03 18:40:15,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:15,851 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:15,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:15,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-03 18:40:15,851 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:15,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:15,851 INFO L85 PathProgramCache]: Analyzing trace with hash 349604659, now seen corresponding path program 85 times [2022-03-03 18:40:15,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:15,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432296273] [2022-03-03 18:40:15,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:15,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:15,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:15,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:15,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432296273] [2022-03-03 18:40:15,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432296273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:15,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:15,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:15,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228976122] [2022-03-03 18:40:15,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:15,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:15,992 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:15,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:15,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:15,992 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) [2022-03-03 18:40:16,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:16,105 INFO L93 Difference]: Finished difference Result 2839 states and 10540 transitions. [2022-03-03 18:40:16,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:16,106 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:16,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:16,112 INFO L225 Difference]: With dead ends: 2839 [2022-03-03 18:40:16,112 INFO L226 Difference]: Without dead ends: 2680 [2022-03-03 18:40:16,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:16,112 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 [2022-03-03 18:40:16,112 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] [2022-03-03 18:40:16,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2022-03-03 18:40:16,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 1486. [2022-03-03 18:40:16,136 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) [2022-03-03 18:40:16,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5911 transitions. [2022-03-03 18:40:16,140 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5911 transitions. Word has length 25 [2022-03-03 18:40:16,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:16,140 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5911 transitions. [2022-03-03 18:40:16,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:16,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5911 transitions. [2022-03-03 18:40:16,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:16,143 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:16,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:16,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-03 18:40:16,143 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:16,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:16,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1357902643, now seen corresponding path program 86 times [2022-03-03 18:40:16,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:16,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478303556] [2022-03-03 18:40:16,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:16,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:16,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:16,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:16,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478303556] [2022-03-03 18:40:16,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478303556] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:16,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:16,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:16,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886722318] [2022-03-03 18:40:16,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:16,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:16,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:16,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:16,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:16,274 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) [2022-03-03 18:40:16,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:16,399 INFO L93 Difference]: Finished difference Result 2867 states and 10628 transitions. [2022-03-03 18:40:16,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:16,399 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:16,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:16,406 INFO L225 Difference]: With dead ends: 2867 [2022-03-03 18:40:16,406 INFO L226 Difference]: Without dead ends: 2664 [2022-03-03 18:40:16,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:16,406 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 [2022-03-03 18:40:16,406 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] [2022-03-03 18:40:16,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2022-03-03 18:40:16,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 1470. [2022-03-03 18:40:16,440 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) [2022-03-03 18:40:16,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5855 transitions. [2022-03-03 18:40:16,445 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5855 transitions. Word has length 25 [2022-03-03 18:40:16,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:16,445 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5855 transitions. [2022-03-03 18:40:16,445 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) [2022-03-03 18:40:16,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5855 transitions. [2022-03-03 18:40:16,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:16,447 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:16,447 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] [2022-03-03 18:40:16,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-03 18:40:16,447 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:16,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:16,448 INFO L85 PathProgramCache]: Analyzing trace with hash -497192303, now seen corresponding path program 87 times [2022-03-03 18:40:16,448 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:16,448 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248855854] [2022-03-03 18:40:16,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:16,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:16,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:16,575 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:16,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248855854] [2022-03-03 18:40:16,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248855854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:16,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:16,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:16,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633728858] [2022-03-03 18:40:16,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:16,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:16,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:16,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:16,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:16,576 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) [2022-03-03 18:40:16,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:16,673 INFO L93 Difference]: Finished difference Result 2835 states and 10520 transitions. [2022-03-03 18:40:16,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:16,673 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 [2022-03-03 18:40:16,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:16,680 INFO L225 Difference]: With dead ends: 2835 [2022-03-03 18:40:16,680 INFO L226 Difference]: Without dead ends: 2676 [2022-03-03 18:40:16,680 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 [2022-03-03 18:40:16,680 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 111 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:16,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 146 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:16,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-03-03 18:40:16,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 1486. [2022-03-03 18:40:16,715 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) [2022-03-03 18:40:16,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5903 transitions. [2022-03-03 18:40:16,720 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5903 transitions. Word has length 25 [2022-03-03 18:40:16,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:16,720 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5903 transitions. [2022-03-03 18:40:16,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:16,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5903 transitions. [2022-03-03 18:40:16,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:16,723 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:16,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:16,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-03 18:40:16,724 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:16,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:16,724 INFO L85 PathProgramCache]: Analyzing trace with hash -527051981, now seen corresponding path program 88 times [2022-03-03 18:40:16,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:16,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598251282] [2022-03-03 18:40:16,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:16,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:16,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:16,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:16,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598251282] [2022-03-03 18:40:16,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598251282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:16,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:16,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:16,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804585226] [2022-03-03 18:40:16,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:16,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:16,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:16,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:16,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:16,865 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) [2022-03-03 18:40:16,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:16,982 INFO L93 Difference]: Finished difference Result 2859 states and 10596 transitions. [2022-03-03 18:40:16,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:16,982 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 [2022-03-03 18:40:16,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:16,988 INFO L225 Difference]: With dead ends: 2859 [2022-03-03 18:40:16,988 INFO L226 Difference]: Without dead ends: 2660 [2022-03-03 18:40:16,989 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 [2022-03-03 18:40:16,989 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 100 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:16,989 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] [2022-03-03 18:40:16,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2660 states. [2022-03-03 18:40:17,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2660 to 1470. [2022-03-03 18:40:17,012 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) [2022-03-03 18:40:17,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5847 transitions. [2022-03-03 18:40:17,015 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5847 transitions. Word has length 25 [2022-03-03 18:40:17,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:17,015 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5847 transitions. [2022-03-03 18:40:17,015 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) [2022-03-03 18:40:17,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5847 transitions. [2022-03-03 18:40:17,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:17,017 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:17,017 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] [2022-03-03 18:40:17,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-03 18:40:17,017 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:17,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:17,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1407470387, now seen corresponding path program 89 times [2022-03-03 18:40:17,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:17,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35203710] [2022-03-03 18:40:17,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:17,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:17,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:17,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:17,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35203710] [2022-03-03 18:40:17,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35203710] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:17,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:17,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:17,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155646245] [2022-03-03 18:40:17,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:17,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:17,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:17,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:17,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:17,145 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) [2022-03-03 18:40:17,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:17,263 INFO L93 Difference]: Finished difference Result 2903 states and 10772 transitions. [2022-03-03 18:40:17,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:17,263 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 [2022-03-03 18:40:17,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:17,270 INFO L225 Difference]: With dead ends: 2903 [2022-03-03 18:40:17,270 INFO L226 Difference]: Without dead ends: 2716 [2022-03-03 18:40:17,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:17,270 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 [2022-03-03 18:40:17,270 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] [2022-03-03 18:40:17,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2022-03-03 18:40:17,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 1498. [2022-03-03 18:40:17,295 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) [2022-03-03 18:40:17,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5935 transitions. [2022-03-03 18:40:17,298 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5935 transitions. Word has length 25 [2022-03-03 18:40:17,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:17,299 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5935 transitions. [2022-03-03 18:40:17,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:17,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5935 transitions. [2022-03-03 18:40:17,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:17,301 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:17,301 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] [2022-03-03 18:40:17,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-03 18:40:17,301 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:17,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:17,301 INFO L85 PathProgramCache]: Analyzing trace with hash -635866607, now seen corresponding path program 90 times [2022-03-03 18:40:17,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:17,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731268837] [2022-03-03 18:40:17,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:17,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:17,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:17,434 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:17,434 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731268837] [2022-03-03 18:40:17,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731268837] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:17,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:17,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:17,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926951265] [2022-03-03 18:40:17,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:17,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:17,435 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:17,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:17,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:17,435 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) [2022-03-03 18:40:17,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:17,553 INFO L93 Difference]: Finished difference Result 2899 states and 10732 transitions. [2022-03-03 18:40:17,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:17,554 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:17,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:17,560 INFO L225 Difference]: With dead ends: 2899 [2022-03-03 18:40:17,560 INFO L226 Difference]: Without dead ends: 2680 [2022-03-03 18:40:17,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:17,561 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 [2022-03-03 18:40:17,561 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] [2022-03-03 18:40:17,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2022-03-03 18:40:17,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 1462. [2022-03-03 18:40:17,590 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) [2022-03-03 18:40:17,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 5823 transitions. [2022-03-03 18:40:17,593 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 5823 transitions. Word has length 25 [2022-03-03 18:40:17,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:17,593 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 5823 transitions. [2022-03-03 18:40:17,593 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) [2022-03-03 18:40:17,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 5823 transitions. [2022-03-03 18:40:17,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:17,596 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:17,596 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] [2022-03-03 18:40:17,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-03 18:40:17,596 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:17,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:17,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1073708949, now seen corresponding path program 91 times [2022-03-03 18:40:17,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:17,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381033928] [2022-03-03 18:40:17,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:17,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:17,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:17,716 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:17,716 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381033928] [2022-03-03 18:40:17,716 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381033928] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:17,716 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:17,716 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:17,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781363498] [2022-03-03 18:40:17,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:17,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:17,717 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:17,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:17,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:17,717 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) [2022-03-03 18:40:17,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:17,854 INFO L93 Difference]: Finished difference Result 2975 states and 11062 transitions. [2022-03-03 18:40:17,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:17,854 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 [2022-03-03 18:40:17,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:17,860 INFO L225 Difference]: With dead ends: 2975 [2022-03-03 18:40:17,861 INFO L226 Difference]: Without dead ends: 2786 [2022-03-03 18:40:17,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:17,861 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 [2022-03-03 18:40:17,861 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] [2022-03-03 18:40:17,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2022-03-03 18:40:17,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 1506. [2022-03-03 18:40:17,886 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) [2022-03-03 18:40:17,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 5981 transitions. [2022-03-03 18:40:17,889 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 5981 transitions. Word has length 25 [2022-03-03 18:40:17,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:17,889 INFO L470 AbstractCegarLoop]: Abstraction has 1506 states and 5981 transitions. [2022-03-03 18:40:17,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:17,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 5981 transitions. [2022-03-03 18:40:17,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:17,892 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:17,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:17,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-03 18:40:17,892 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:17,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:17,893 INFO L85 PathProgramCache]: Analyzing trace with hash -969628045, now seen corresponding path program 92 times [2022-03-03 18:40:17,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:17,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864309061] [2022-03-03 18:40:17,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:17,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:18,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:18,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:18,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864309061] [2022-03-03 18:40:18,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864309061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:18,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:18,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:18,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544728080] [2022-03-03 18:40:18,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:18,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:18,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:18,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:18,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:18,032 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) [2022-03-03 18:40:18,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:18,165 INFO L93 Difference]: Finished difference Result 2973 states and 11027 transitions. [2022-03-03 18:40:18,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:18,166 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:18,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:18,172 INFO L225 Difference]: With dead ends: 2973 [2022-03-03 18:40:18,172 INFO L226 Difference]: Without dead ends: 2756 [2022-03-03 18:40:18,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:18,173 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 [2022-03-03 18:40:18,173 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] [2022-03-03 18:40:18,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2022-03-03 18:40:18,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 1476. [2022-03-03 18:40:18,198 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) [2022-03-03 18:40:18,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 5874 transitions. [2022-03-03 18:40:18,201 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 5874 transitions. Word has length 25 [2022-03-03 18:40:18,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:18,202 INFO L470 AbstractCegarLoop]: Abstraction has 1476 states and 5874 transitions. [2022-03-03 18:40:18,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:18,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 5874 transitions. [2022-03-03 18:40:18,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:18,204 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:18,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:18,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-03 18:40:18,204 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:18,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:18,204 INFO L85 PathProgramCache]: Analyzing trace with hash 226911987, now seen corresponding path program 93 times [2022-03-03 18:40:18,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:18,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473205995] [2022-03-03 18:40:18,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:18,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:18,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:18,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:18,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473205995] [2022-03-03 18:40:18,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473205995] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:18,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:18,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:18,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581266089] [2022-03-03 18:40:18,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:18,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:18,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:18,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:18,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:18,326 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) [2022-03-03 18:40:18,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:18,450 INFO L93 Difference]: Finished difference Result 2969 states and 11029 transitions. [2022-03-03 18:40:18,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:18,451 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:18,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:18,457 INFO L225 Difference]: With dead ends: 2969 [2022-03-03 18:40:18,457 INFO L226 Difference]: Without dead ends: 2780 [2022-03-03 18:40:18,457 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 [2022-03-03 18:40:18,457 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 94 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:18,457 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] [2022-03-03 18:40:18,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2022-03-03 18:40:18,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 1504. [2022-03-03 18:40:18,486 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) [2022-03-03 18:40:18,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 5962 transitions. [2022-03-03 18:40:18,489 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 5962 transitions. Word has length 25 [2022-03-03 18:40:18,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:18,489 INFO L470 AbstractCegarLoop]: Abstraction has 1504 states and 5962 transitions. [2022-03-03 18:40:18,489 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) [2022-03-03 18:40:18,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 5962 transitions. [2022-03-03 18:40:18,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:18,492 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:18,492 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] [2022-03-03 18:40:18,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-03 18:40:18,492 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:18,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:18,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1419378419, now seen corresponding path program 94 times [2022-03-03 18:40:18,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:18,492 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213489968] [2022-03-03 18:40:18,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:18,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:18,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:18,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:18,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213489968] [2022-03-03 18:40:18,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213489968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:18,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:18,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:18,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073902696] [2022-03-03 18:40:18,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:18,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:18,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:18,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:18,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:18,613 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) [2022-03-03 18:40:18,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:18,732 INFO L93 Difference]: Finished difference Result 2963 states and 10984 transitions. [2022-03-03 18:40:18,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:18,732 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 [2022-03-03 18:40:18,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:18,739 INFO L225 Difference]: With dead ends: 2963 [2022-03-03 18:40:18,739 INFO L226 Difference]: Without dead ends: 2752 [2022-03-03 18:40:18,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:18,739 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 [2022-03-03 18:40:18,739 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] [2022-03-03 18:40:18,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2022-03-03 18:40:18,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 1476. [2022-03-03 18:40:18,781 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) [2022-03-03 18:40:18,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 5860 transitions. [2022-03-03 18:40:18,785 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 5860 transitions. Word has length 25 [2022-03-03 18:40:18,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:18,785 INFO L470 AbstractCegarLoop]: Abstraction has 1476 states and 5860 transitions. [2022-03-03 18:40:18,785 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) [2022-03-03 18:40:18,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 5860 transitions. [2022-03-03 18:40:18,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:18,787 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:18,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:18,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-03 18:40:18,787 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:18,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:18,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1209259601, now seen corresponding path program 95 times [2022-03-03 18:40:18,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:18,788 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125765108] [2022-03-03 18:40:18,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:18,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:18,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:18,914 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:18,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125765108] [2022-03-03 18:40:18,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125765108] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:18,914 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:18,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:18,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010212202] [2022-03-03 18:40:18,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:18,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:18,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:18,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:18,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:18,915 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) [2022-03-03 18:40:19,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:19,037 INFO L93 Difference]: Finished difference Result 2965 states and 11005 transitions. [2022-03-03 18:40:19,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:19,037 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 [2022-03-03 18:40:19,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:19,044 INFO L225 Difference]: With dead ends: 2965 [2022-03-03 18:40:19,044 INFO L226 Difference]: Without dead ends: 2778 [2022-03-03 18:40:19,044 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 [2022-03-03 18:40:19,044 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 [2022-03-03 18:40:19,045 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] [2022-03-03 18:40:19,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2022-03-03 18:40:19,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 1504. [2022-03-03 18:40:19,069 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) [2022-03-03 18:40:19,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 5948 transitions. [2022-03-03 18:40:19,072 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 5948 transitions. Word has length 25 [2022-03-03 18:40:19,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:19,072 INFO L470 AbstractCegarLoop]: Abstraction has 1504 states and 5948 transitions. [2022-03-03 18:40:19,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:19,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 5948 transitions. [2022-03-03 18:40:19,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:19,075 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:19,075 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] [2022-03-03 18:40:19,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-03 18:40:19,075 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:19,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:19,075 INFO L85 PathProgramCache]: Analyzing trace with hash -2004645069, now seen corresponding path program 96 times [2022-03-03 18:40:19,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:19,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000027683] [2022-03-03 18:40:19,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:19,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:19,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:19,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:19,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000027683] [2022-03-03 18:40:19,208 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000027683] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:19,208 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:19,208 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:19,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924571664] [2022-03-03 18:40:19,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:19,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:19,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:19,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:19,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:19,209 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) [2022-03-03 18:40:19,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:19,331 INFO L93 Difference]: Finished difference Result 2961 states and 10965 transitions. [2022-03-03 18:40:19,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:19,332 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:19,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:19,338 INFO L225 Difference]: With dead ends: 2961 [2022-03-03 18:40:19,338 INFO L226 Difference]: Without dead ends: 2732 [2022-03-03 18:40:19,338 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 [2022-03-03 18:40:19,338 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 [2022-03-03 18:40:19,339 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] [2022-03-03 18:40:19,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2022-03-03 18:40:19,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 1458. [2022-03-03 18:40:19,362 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) [2022-03-03 18:40:19,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5813 transitions. [2022-03-03 18:40:19,365 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5813 transitions. Word has length 25 [2022-03-03 18:40:19,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:19,365 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5813 transitions. [2022-03-03 18:40:19,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:19,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5813 transitions. [2022-03-03 18:40:19,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:19,368 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:19,368 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] [2022-03-03 18:40:19,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-03 18:40:19,368 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:19,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:19,368 INFO L85 PathProgramCache]: Analyzing trace with hash -894688137, now seen corresponding path program 97 times [2022-03-03 18:40:19,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:19,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379982861] [2022-03-03 18:40:19,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:19,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:19,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:19,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:19,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379982861] [2022-03-03 18:40:19,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379982861] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:19,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:19,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:19,500 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446087454] [2022-03-03 18:40:19,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:19,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:19,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:19,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:19,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:19,501 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) [2022-03-03 18:40:19,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:19,613 INFO L93 Difference]: Finished difference Result 3229 states and 12055 transitions. [2022-03-03 18:40:19,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:19,613 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:19,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:19,620 INFO L225 Difference]: With dead ends: 3229 [2022-03-03 18:40:19,620 INFO L226 Difference]: Without dead ends: 3040 [2022-03-03 18:40:19,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:19,620 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 [2022-03-03 18:40:19,620 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] [2022-03-03 18:40:19,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3040 states. [2022-03-03 18:40:19,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3040 to 1525. [2022-03-03 18:40:19,646 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) [2022-03-03 18:40:19,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 6063 transitions. [2022-03-03 18:40:19,649 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 6063 transitions. Word has length 25 [2022-03-03 18:40:19,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:19,649 INFO L470 AbstractCegarLoop]: Abstraction has 1525 states and 6063 transitions. [2022-03-03 18:40:19,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:19,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 6063 transitions. [2022-03-03 18:40:19,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:19,652 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:19,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:19,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-03 18:40:19,652 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:19,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:19,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1356942165, now seen corresponding path program 98 times [2022-03-03 18:40:19,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:19,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175870643] [2022-03-03 18:40:19,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:19,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:19,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:19,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:19,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175870643] [2022-03-03 18:40:19,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175870643] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:19,791 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:19,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:19,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572787456] [2022-03-03 18:40:19,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:19,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:19,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:19,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:19,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:19,792 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) [2022-03-03 18:40:19,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:19,901 INFO L93 Difference]: Finished difference Result 3227 states and 12020 transitions. [2022-03-03 18:40:19,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:19,901 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 [2022-03-03 18:40:19,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:19,908 INFO L225 Difference]: With dead ends: 3227 [2022-03-03 18:40:19,908 INFO L226 Difference]: Without dead ends: 3010 [2022-03-03 18:40:19,908 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 [2022-03-03 18:40:19,908 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 114 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:19,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 136 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:19,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2022-03-03 18:40:19,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 1495. [2022-03-03 18:40:19,933 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) [2022-03-03 18:40:19,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 5956 transitions. [2022-03-03 18:40:19,936 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 5956 transitions. Word has length 25 [2022-03-03 18:40:19,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:19,936 INFO L470 AbstractCegarLoop]: Abstraction has 1495 states and 5956 transitions. [2022-03-03 18:40:19,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:19,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 5956 transitions. [2022-03-03 18:40:19,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:19,938 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:19,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:19,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-03 18:40:19,939 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:19,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:19,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1741485099, now seen corresponding path program 99 times [2022-03-03 18:40:19,939 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:19,939 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24296028] [2022-03-03 18:40:19,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:19,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:20,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:20,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:20,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24296028] [2022-03-03 18:40:20,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24296028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:20,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:20,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:20,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026717098] [2022-03-03 18:40:20,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:20,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:20,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:20,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:20,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:20,065 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) [2022-03-03 18:40:20,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:20,179 INFO L93 Difference]: Finished difference Result 3223 states and 12022 transitions. [2022-03-03 18:40:20,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:20,180 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 [2022-03-03 18:40:20,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:20,187 INFO L225 Difference]: With dead ends: 3223 [2022-03-03 18:40:20,187 INFO L226 Difference]: Without dead ends: 3034 [2022-03-03 18:40:20,187 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 [2022-03-03 18:40:20,187 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 120 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:20,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 140 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:20,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3034 states. [2022-03-03 18:40:20,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3034 to 1523. [2022-03-03 18:40:20,220 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) [2022-03-03 18:40:20,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 6044 transitions. [2022-03-03 18:40:20,224 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 6044 transitions. Word has length 25 [2022-03-03 18:40:20,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:20,224 INFO L470 AbstractCegarLoop]: Abstraction has 1523 states and 6044 transitions. [2022-03-03 18:40:20,224 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) [2022-03-03 18:40:20,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 6044 transitions. [2022-03-03 18:40:20,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:20,226 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:20,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:20,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-03 18:40:20,227 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:20,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:20,227 INFO L85 PathProgramCache]: Analyzing trace with hash -549018667, now seen corresponding path program 100 times [2022-03-03 18:40:20,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:20,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584687710] [2022-03-03 18:40:20,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:20,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:20,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:20,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:20,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584687710] [2022-03-03 18:40:20,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584687710] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:20,350 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:20,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:20,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231047821] [2022-03-03 18:40:20,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:20,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:20,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:20,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:20,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:20,351 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) [2022-03-03 18:40:20,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:20,476 INFO L93 Difference]: Finished difference Result 3217 states and 11977 transitions. [2022-03-03 18:40:20,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:20,476 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 [2022-03-03 18:40:20,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:20,483 INFO L225 Difference]: With dead ends: 3217 [2022-03-03 18:40:20,483 INFO L226 Difference]: Without dead ends: 3006 [2022-03-03 18:40:20,483 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 [2022-03-03 18:40:20,484 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 [2022-03-03 18:40:20,484 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] [2022-03-03 18:40:20,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2022-03-03 18:40:20,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 1495. [2022-03-03 18:40:20,509 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) [2022-03-03 18:40:20,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 5942 transitions. [2022-03-03 18:40:20,513 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 5942 transitions. Word has length 25 [2022-03-03 18:40:20,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:20,513 INFO L470 AbstractCegarLoop]: Abstraction has 1495 states and 5942 transitions. [2022-03-03 18:40:20,513 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) [2022-03-03 18:40:20,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 5942 transitions. [2022-03-03 18:40:20,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:20,515 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:20,515 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] [2022-03-03 18:40:20,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-03 18:40:20,515 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:20,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:20,515 INFO L85 PathProgramCache]: Analyzing trace with hash -759137485, now seen corresponding path program 101 times [2022-03-03 18:40:20,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:20,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909887465] [2022-03-03 18:40:20,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:20,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:20,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:20,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:20,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909887465] [2022-03-03 18:40:20,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909887465] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:20,643 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:20,643 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:20,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819720088] [2022-03-03 18:40:20,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:20,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:20,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:20,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:20,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:20,644 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) [2022-03-03 18:40:20,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:20,754 INFO L93 Difference]: Finished difference Result 3219 states and 11998 transitions. [2022-03-03 18:40:20,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:20,754 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 [2022-03-03 18:40:20,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:20,761 INFO L225 Difference]: With dead ends: 3219 [2022-03-03 18:40:20,761 INFO L226 Difference]: Without dead ends: 3032 [2022-03-03 18:40:20,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:20,761 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 [2022-03-03 18:40:20,761 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] [2022-03-03 18:40:20,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2022-03-03 18:40:20,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 1523. [2022-03-03 18:40:20,789 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) [2022-03-03 18:40:20,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 6030 transitions. [2022-03-03 18:40:20,792 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 6030 transitions. Word has length 25 [2022-03-03 18:40:20,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:20,792 INFO L470 AbstractCegarLoop]: Abstraction has 1523 states and 6030 transitions. [2022-03-03 18:40:20,793 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) [2022-03-03 18:40:20,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 6030 transitions. [2022-03-03 18:40:20,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:20,795 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:20,795 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] [2022-03-03 18:40:20,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-03 18:40:20,795 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:20,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:20,795 INFO L85 PathProgramCache]: Analyzing trace with hash 321925141, now seen corresponding path program 102 times [2022-03-03 18:40:20,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:20,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404956417] [2022-03-03 18:40:20,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:20,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:20,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:20,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:20,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404956417] [2022-03-03 18:40:20,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404956417] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:20,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:20,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:20,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267624736] [2022-03-03 18:40:20,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:20,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:20,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:20,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:20,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:20,942 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) [2022-03-03 18:40:21,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:21,086 INFO L93 Difference]: Finished difference Result 3215 states and 11958 transitions. [2022-03-03 18:40:21,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:21,086 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 [2022-03-03 18:40:21,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:21,095 INFO L225 Difference]: With dead ends: 3215 [2022-03-03 18:40:21,095 INFO L226 Difference]: Without dead ends: 2990 [2022-03-03 18:40:21,096 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 [2022-03-03 18:40:21,096 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 [2022-03-03 18:40:21,096 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] [2022-03-03 18:40:21,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2022-03-03 18:40:21,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 1481. [2022-03-03 18:40:21,132 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) [2022-03-03 18:40:21,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 5898 transitions. [2022-03-03 18:40:21,136 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 5898 transitions. Word has length 25 [2022-03-03 18:40:21,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:21,136 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 5898 transitions. [2022-03-03 18:40:21,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:21,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 5898 transitions. [2022-03-03 18:40:21,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:21,140 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:21,140 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] [2022-03-03 18:40:21,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-03 18:40:21,140 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:21,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:21,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1426973141, now seen corresponding path program 103 times [2022-03-03 18:40:21,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:21,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345279333] [2022-03-03 18:40:21,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:21,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:21,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:21,280 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:21,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345279333] [2022-03-03 18:40:21,280 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345279333] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:21,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:21,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:21,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564476641] [2022-03-03 18:40:21,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:21,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:21,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:21,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:21,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:21,281 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) [2022-03-03 18:40:21,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:21,420 INFO L93 Difference]: Finished difference Result 3346 states and 12460 transitions. [2022-03-03 18:40:21,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:21,421 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 [2022-03-03 18:40:21,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:21,428 INFO L225 Difference]: With dead ends: 3346 [2022-03-03 18:40:21,428 INFO L226 Difference]: Without dead ends: 3157 [2022-03-03 18:40:21,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:21,428 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 [2022-03-03 18:40:21,428 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] [2022-03-03 18:40:21,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3157 states. [2022-03-03 18:40:21,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3157 to 1550. [2022-03-03 18:40:21,455 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) [2022-03-03 18:40:21,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 6144 transitions. [2022-03-03 18:40:21,458 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 6144 transitions. Word has length 25 [2022-03-03 18:40:21,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:21,458 INFO L470 AbstractCegarLoop]: Abstraction has 1550 states and 6144 transitions. [2022-03-03 18:40:21,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:21,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 6144 transitions. [2022-03-03 18:40:21,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:21,461 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:21,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:21,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-03 18:40:21,461 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:21,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:21,461 INFO L85 PathProgramCache]: Analyzing trace with hash -616363853, now seen corresponding path program 104 times [2022-03-03 18:40:21,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:21,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12623359] [2022-03-03 18:40:21,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:21,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:21,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:21,583 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:21,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12623359] [2022-03-03 18:40:21,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12623359] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:21,583 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:21,583 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:21,583 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234307723] [2022-03-03 18:40:21,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:21,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:21,584 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:21,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:21,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:21,584 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) [2022-03-03 18:40:21,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:21,726 INFO L93 Difference]: Finished difference Result 3344 states and 12425 transitions. [2022-03-03 18:40:21,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:21,726 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 [2022-03-03 18:40:21,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:21,734 INFO L225 Difference]: With dead ends: 3344 [2022-03-03 18:40:21,734 INFO L226 Difference]: Without dead ends: 3127 [2022-03-03 18:40:21,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:21,734 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 [2022-03-03 18:40:21,734 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] [2022-03-03 18:40:21,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3127 states. [2022-03-03 18:40:21,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3127 to 1520. [2022-03-03 18:40:21,761 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) [2022-03-03 18:40:21,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 6036 transitions. [2022-03-03 18:40:21,765 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 6036 transitions. Word has length 25 [2022-03-03 18:40:21,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:21,765 INFO L470 AbstractCegarLoop]: Abstraction has 1520 states and 6036 transitions. [2022-03-03 18:40:21,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:21,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 6036 transitions. [2022-03-03 18:40:21,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:21,767 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:21,767 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] [2022-03-03 18:40:21,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-03 18:40:21,767 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:21,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:21,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1852713429, now seen corresponding path program 105 times [2022-03-03 18:40:21,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:21,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475140461] [2022-03-03 18:40:21,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:21,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:21,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:21,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:21,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475140461] [2022-03-03 18:40:21,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475140461] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:21,900 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:21,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:21,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804743639] [2022-03-03 18:40:21,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:21,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:21,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:21,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:21,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:21,901 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) [2022-03-03 18:40:22,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:22,022 INFO L93 Difference]: Finished difference Result 3414 states and 12679 transitions. [2022-03-03 18:40:22,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:22,022 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 [2022-03-03 18:40:22,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:22,030 INFO L225 Difference]: With dead ends: 3414 [2022-03-03 18:40:22,030 INFO L226 Difference]: Without dead ends: 3225 [2022-03-03 18:40:22,030 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 [2022-03-03 18:40:22,030 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 [2022-03-03 18:40:22,030 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] [2022-03-03 18:40:22,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3225 states. [2022-03-03 18:40:22,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3225 to 1583. [2022-03-03 18:40:22,066 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) [2022-03-03 18:40:22,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 6243 transitions. [2022-03-03 18:40:22,070 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 6243 transitions. Word has length 25 [2022-03-03 18:40:22,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:22,070 INFO L470 AbstractCegarLoop]: Abstraction has 1583 states and 6243 transitions. [2022-03-03 18:40:22,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:22,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 6243 transitions. [2022-03-03 18:40:22,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:22,073 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:22,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:22,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-03 18:40:22,073 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:22,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:22,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1296925141, now seen corresponding path program 106 times [2022-03-03 18:40:22,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:22,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217187953] [2022-03-03 18:40:22,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:22,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:22,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:22,196 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:22,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217187953] [2022-03-03 18:40:22,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217187953] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:22,196 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:22,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:22,196 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902359895] [2022-03-03 18:40:22,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:22,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:22,196 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:22,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:22,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:22,196 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) [2022-03-03 18:40:22,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:22,317 INFO L93 Difference]: Finished difference Result 3447 states and 12762 transitions. [2022-03-03 18:40:22,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:22,317 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 [2022-03-03 18:40:22,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:22,325 INFO L225 Difference]: With dead ends: 3447 [2022-03-03 18:40:22,325 INFO L226 Difference]: Without dead ends: 3162 [2022-03-03 18:40:22,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:22,325 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 [2022-03-03 18:40:22,325 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] [2022-03-03 18:40:22,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2022-03-03 18:40:22,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 1520. [2022-03-03 18:40:22,353 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) [2022-03-03 18:40:22,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 6005 transitions. [2022-03-03 18:40:22,356 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 6005 transitions. Word has length 25 [2022-03-03 18:40:22,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:22,356 INFO L470 AbstractCegarLoop]: Abstraction has 1520 states and 6005 transitions. [2022-03-03 18:40:22,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:22,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 6005 transitions. [2022-03-03 18:40:22,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:22,359 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:22,359 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] [2022-03-03 18:40:22,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-03 18:40:22,359 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:22,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:22,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1459906253, now seen corresponding path program 107 times [2022-03-03 18:40:22,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:22,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653135334] [2022-03-03 18:40:22,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:22,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:22,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:22,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:22,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653135334] [2022-03-03 18:40:22,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653135334] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:22,504 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:22,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:22,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080170295] [2022-03-03 18:40:22,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:22,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:22,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:22,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:22,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:22,505 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) [2022-03-03 18:40:22,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:22,644 INFO L93 Difference]: Finished difference Result 3393 states and 12587 transitions. [2022-03-03 18:40:22,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:22,645 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 [2022-03-03 18:40:22,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:22,652 INFO L225 Difference]: With dead ends: 3393 [2022-03-03 18:40:22,652 INFO L226 Difference]: Without dead ends: 3206 [2022-03-03 18:40:22,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:22,653 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 [2022-03-03 18:40:22,653 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] [2022-03-03 18:40:22,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states. [2022-03-03 18:40:22,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 1566. [2022-03-03 18:40:22,682 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) [2022-03-03 18:40:22,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 6162 transitions. [2022-03-03 18:40:22,685 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 6162 transitions. Word has length 25 [2022-03-03 18:40:22,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:22,685 INFO L470 AbstractCegarLoop]: Abstraction has 1566 states and 6162 transitions. [2022-03-03 18:40:22,686 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) [2022-03-03 18:40:22,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 6162 transitions. [2022-03-03 18:40:22,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:22,688 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:22,688 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] [2022-03-03 18:40:22,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-03 18:40:22,688 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:22,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:22,689 INFO L85 PathProgramCache]: Analyzing trace with hash 477671445, now seen corresponding path program 108 times [2022-03-03 18:40:22,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:22,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687147161] [2022-03-03 18:40:22,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:22,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:22,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:22,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:22,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687147161] [2022-03-03 18:40:22,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687147161] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:22,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:22,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:22,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029650851] [2022-03-03 18:40:22,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:22,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:22,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:22,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:22,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:22,809 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) [2022-03-03 18:40:22,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:22,950 INFO L93 Difference]: Finished difference Result 3428 states and 12676 transitions. [2022-03-03 18:40:22,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:22,950 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:22,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:22,958 INFO L225 Difference]: With dead ends: 3428 [2022-03-03 18:40:22,958 INFO L226 Difference]: Without dead ends: 3121 [2022-03-03 18:40:22,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:22,958 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 [2022-03-03 18:40:22,958 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] [2022-03-03 18:40:22,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3121 states. [2022-03-03 18:40:22,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3121 to 1481. [2022-03-03 18:40:22,986 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) [2022-03-03 18:40:22,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 5879 transitions. [2022-03-03 18:40:22,990 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 5879 transitions. Word has length 25 [2022-03-03 18:40:22,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:22,990 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 5879 transitions. [2022-03-03 18:40:22,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:22,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 5879 transitions. [2022-03-03 18:40:22,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:22,993 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:22,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:22,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-03 18:40:22,993 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:22,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:22,993 INFO L85 PathProgramCache]: Analyzing trace with hash 570225075, now seen corresponding path program 109 times [2022-03-03 18:40:22,993 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:22,993 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3027601] [2022-03-03 18:40:22,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:22,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:23,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:23,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:23,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3027601] [2022-03-03 18:40:23,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3027601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:23,112 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:23,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:23,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941676002] [2022-03-03 18:40:23,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:23,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:23,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:23,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:23,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:23,113 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) [2022-03-03 18:40:23,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:23,246 INFO L93 Difference]: Finished difference Result 3323 states and 12372 transitions. [2022-03-03 18:40:23,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:23,246 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:23,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:23,254 INFO L225 Difference]: With dead ends: 3323 [2022-03-03 18:40:23,254 INFO L226 Difference]: Without dead ends: 3134 [2022-03-03 18:40:23,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:23,254 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 112 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:23,254 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] [2022-03-03 18:40:23,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2022-03-03 18:40:23,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 1539. [2022-03-03 18:40:23,283 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) [2022-03-03 18:40:23,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 6096 transitions. [2022-03-03 18:40:23,287 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 6096 transitions. Word has length 25 [2022-03-03 18:40:23,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:23,287 INFO L470 AbstractCegarLoop]: Abstraction has 1539 states and 6096 transitions. [2022-03-03 18:40:23,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:23,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 6096 transitions. [2022-03-03 18:40:23,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:23,289 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:23,290 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] [2022-03-03 18:40:23,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-03 18:40:23,290 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:23,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:23,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1762691507, now seen corresponding path program 110 times [2022-03-03 18:40:23,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:23,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613374035] [2022-03-03 18:40:23,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:23,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:23,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:23,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:23,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613374035] [2022-03-03 18:40:23,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613374035] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:23,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:23,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:23,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454895844] [2022-03-03 18:40:23,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:23,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:23,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:23,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:23,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:23,409 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) [2022-03-03 18:40:23,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:23,543 INFO L93 Difference]: Finished difference Result 3317 states and 12327 transitions. [2022-03-03 18:40:23,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:23,544 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 [2022-03-03 18:40:23,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:23,551 INFO L225 Difference]: With dead ends: 3317 [2022-03-03 18:40:23,551 INFO L226 Difference]: Without dead ends: 3106 [2022-03-03 18:40:23,551 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 [2022-03-03 18:40:23,552 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 [2022-03-03 18:40:23,552 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] [2022-03-03 18:40:23,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2022-03-03 18:40:23,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 1511. [2022-03-03 18:40:23,578 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) [2022-03-03 18:40:23,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 5994 transitions. [2022-03-03 18:40:23,581 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 5994 transitions. Word has length 25 [2022-03-03 18:40:23,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:23,581 INFO L470 AbstractCegarLoop]: Abstraction has 1511 states and 5994 transitions. [2022-03-03 18:40:23,581 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) [2022-03-03 18:40:23,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 5994 transitions. [2022-03-03 18:40:23,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:23,583 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:23,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:23,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-03 18:40:23,584 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:23,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:23,584 INFO L85 PathProgramCache]: Analyzing trace with hash -740355947, now seen corresponding path program 111 times [2022-03-03 18:40:23,584 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:23,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407393832] [2022-03-03 18:40:23,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:23,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:23,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:23,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:23,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407393832] [2022-03-03 18:40:23,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407393832] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:23,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:23,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:23,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520100939] [2022-03-03 18:40:23,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:23,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:23,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:23,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:23,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:23,708 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) [2022-03-03 18:40:23,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:23,827 INFO L93 Difference]: Finished difference Result 3397 states and 12611 transitions. [2022-03-03 18:40:23,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:23,827 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:23,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:23,835 INFO L225 Difference]: With dead ends: 3397 [2022-03-03 18:40:23,835 INFO L226 Difference]: Without dead ends: 3208 [2022-03-03 18:40:23,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:23,835 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 [2022-03-03 18:40:23,836 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] [2022-03-03 18:40:23,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2022-03-03 18:40:23,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 1574. [2022-03-03 18:40:23,862 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) [2022-03-03 18:40:23,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 6201 transitions. [2022-03-03 18:40:23,866 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 6201 transitions. Word has length 25 [2022-03-03 18:40:23,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:23,866 INFO L470 AbstractCegarLoop]: Abstraction has 1574 states and 6201 transitions. [2022-03-03 18:40:23,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:23,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 6201 transitions. [2022-03-03 18:40:23,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:23,869 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:23,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:23,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-03 18:40:23,869 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:23,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:23,869 INFO L85 PathProgramCache]: Analyzing trace with hash -726136397, now seen corresponding path program 112 times [2022-03-03 18:40:23,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:23,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954412409] [2022-03-03 18:40:23,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:23,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:23,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:23,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:23,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954412409] [2022-03-03 18:40:23,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954412409] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:23,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:23,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:23,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276714375] [2022-03-03 18:40:23,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:23,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:23,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:23,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:23,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:23,991 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) [2022-03-03 18:40:24,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:24,110 INFO L93 Difference]: Finished difference Result 3430 states and 12694 transitions. [2022-03-03 18:40:24,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:24,110 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:24,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:24,117 INFO L225 Difference]: With dead ends: 3430 [2022-03-03 18:40:24,117 INFO L226 Difference]: Without dead ends: 3145 [2022-03-03 18:40:24,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:24,118 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 [2022-03-03 18:40:24,118 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] [2022-03-03 18:40:24,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3145 states. [2022-03-03 18:40:24,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3145 to 1511. [2022-03-03 18:40:24,144 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) [2022-03-03 18:40:24,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 5964 transitions. [2022-03-03 18:40:24,148 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 5964 transitions. Word has length 25 [2022-03-03 18:40:24,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:24,148 INFO L470 AbstractCegarLoop]: Abstraction has 1511 states and 5964 transitions. [2022-03-03 18:40:24,148 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) [2022-03-03 18:40:24,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 5964 transitions. [2022-03-03 18:40:24,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:24,150 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:24,150 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] [2022-03-03 18:40:24,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-03 18:40:24,150 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:24,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:24,151 INFO L85 PathProgramCache]: Analyzing trace with hash 226091443, now seen corresponding path program 113 times [2022-03-03 18:40:24,151 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:24,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942236977] [2022-03-03 18:40:24,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:24,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:24,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:24,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:24,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942236977] [2022-03-03 18:40:24,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942236977] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:24,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:24,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:24,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502056736] [2022-03-03 18:40:24,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:24,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:24,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:24,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:24,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:24,295 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) [2022-03-03 18:40:24,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:24,429 INFO L93 Difference]: Finished difference Result 3366 states and 12489 transitions. [2022-03-03 18:40:24,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:24,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:24,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:24,437 INFO L225 Difference]: With dead ends: 3366 [2022-03-03 18:40:24,437 INFO L226 Difference]: Without dead ends: 3183 [2022-03-03 18:40:24,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:24,437 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 [2022-03-03 18:40:24,437 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] [2022-03-03 18:40:24,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3183 states. [2022-03-03 18:40:24,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3183 to 1555. [2022-03-03 18:40:24,464 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) [2022-03-03 18:40:24,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 6116 transitions. [2022-03-03 18:40:24,467 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 6116 transitions. Word has length 25 [2022-03-03 18:40:24,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:24,467 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 6116 transitions. [2022-03-03 18:40:24,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:24,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 6116 transitions. [2022-03-03 18:40:24,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:24,470 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:24,470 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] [2022-03-03 18:40:24,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-03 18:40:24,470 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:24,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:24,470 INFO L85 PathProgramCache]: Analyzing trace with hash -843427563, now seen corresponding path program 114 times [2022-03-03 18:40:24,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:24,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680669204] [2022-03-03 18:40:24,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:24,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:24,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:24,588 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:24,588 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680669204] [2022-03-03 18:40:24,588 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680669204] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:24,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:24,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:24,589 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490040631] [2022-03-03 18:40:24,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:24,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:24,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:24,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:24,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:24,589 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) [2022-03-03 18:40:24,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:24,706 INFO L93 Difference]: Finished difference Result 3405 states and 12592 transitions. [2022-03-03 18:40:24,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:24,707 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:24,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:24,714 INFO L225 Difference]: With dead ends: 3405 [2022-03-03 18:40:24,714 INFO L226 Difference]: Without dead ends: 3109 [2022-03-03 18:40:24,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:24,714 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 [2022-03-03 18:40:24,714 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] [2022-03-03 18:40:24,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2022-03-03 18:40:24,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 1481. [2022-03-03 18:40:24,741 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) [2022-03-03 18:40:24,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 5864 transitions. [2022-03-03 18:40:24,745 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 5864 transitions. Word has length 25 [2022-03-03 18:40:24,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:24,745 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 5864 transitions. [2022-03-03 18:40:24,745 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) [2022-03-03 18:40:24,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 5864 transitions. [2022-03-03 18:40:24,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:24,747 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:24,747 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:24,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-03 18:40:24,747 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:24,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:24,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1542621585, now seen corresponding path program 115 times [2022-03-03 18:40:24,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:24,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143661538] [2022-03-03 18:40:24,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:24,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:24,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:24,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:24,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143661538] [2022-03-03 18:40:24,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143661538] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:24,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:24,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:24,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541286822] [2022-03-03 18:40:24,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:24,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:24,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:24,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:24,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:24,864 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) [2022-03-03 18:40:24,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:24,987 INFO L93 Difference]: Finished difference Result 3292 states and 12263 transitions. [2022-03-03 18:40:24,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:24,988 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 [2022-03-03 18:40:24,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:24,995 INFO L225 Difference]: With dead ends: 3292 [2022-03-03 18:40:24,995 INFO L226 Difference]: Without dead ends: 3105 [2022-03-03 18:40:24,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:24,995 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 [2022-03-03 18:40:24,996 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] [2022-03-03 18:40:25,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3105 states. [2022-03-03 18:40:25,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3105 to 1531. [2022-03-03 18:40:25,025 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) [2022-03-03 18:40:25,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 6053 transitions. [2022-03-03 18:40:25,028 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 6053 transitions. Word has length 25 [2022-03-03 18:40:25,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:25,028 INFO L470 AbstractCegarLoop]: Abstraction has 1531 states and 6053 transitions. [2022-03-03 18:40:25,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:25,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 6053 transitions. [2022-03-03 18:40:25,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:25,030 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:25,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:25,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-03 18:40:25,031 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:25,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:25,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1671283085, now seen corresponding path program 116 times [2022-03-03 18:40:25,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:25,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269149226] [2022-03-03 18:40:25,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:25,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:25,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:25,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:25,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269149226] [2022-03-03 18:40:25,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269149226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:25,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:25,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:25,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870879331] [2022-03-03 18:40:25,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:25,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:25,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:25,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:25,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:25,151 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) [2022-03-03 18:40:25,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:25,274 INFO L93 Difference]: Finished difference Result 3288 states and 12223 transitions. [2022-03-03 18:40:25,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:25,275 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 [2022-03-03 18:40:25,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:25,282 INFO L225 Difference]: With dead ends: 3288 [2022-03-03 18:40:25,282 INFO L226 Difference]: Without dead ends: 3077 [2022-03-03 18:40:25,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:25,282 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 [2022-03-03 18:40:25,282 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] [2022-03-03 18:40:25,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2022-03-03 18:40:25,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 1503. [2022-03-03 18:40:25,308 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) [2022-03-03 18:40:25,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 5951 transitions. [2022-03-03 18:40:25,311 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 5951 transitions. Word has length 25 [2022-03-03 18:40:25,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:25,311 INFO L470 AbstractCegarLoop]: Abstraction has 1503 states and 5951 transitions. [2022-03-03 18:40:25,311 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) [2022-03-03 18:40:25,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 5951 transitions. [2022-03-03 18:40:25,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:25,313 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:25,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:25,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-03 18:40:25,314 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:25,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:25,314 INFO L85 PathProgramCache]: Analyzing trace with hash 232040563, now seen corresponding path program 117 times [2022-03-03 18:40:25,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:25,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055293278] [2022-03-03 18:40:25,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:25,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:25,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:25,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:25,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055293278] [2022-03-03 18:40:25,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055293278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:25,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:25,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:25,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191711792] [2022-03-03 18:40:25,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:25,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:25,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:25,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:25,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:25,438 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) [2022-03-03 18:40:25,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:25,552 INFO L93 Difference]: Finished difference Result 3349 states and 12451 transitions. [2022-03-03 18:40:25,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:25,552 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:25,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:25,559 INFO L225 Difference]: With dead ends: 3349 [2022-03-03 18:40:25,560 INFO L226 Difference]: Without dead ends: 3162 [2022-03-03 18:40:25,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:25,560 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 111 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:25,560 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] [2022-03-03 18:40:25,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2022-03-03 18:40:25,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 1549. [2022-03-03 18:40:25,586 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) [2022-03-03 18:40:25,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1549 states to 1549 states and 6108 transitions. [2022-03-03 18:40:25,590 INFO L78 Accepts]: Start accepts. Automaton has 1549 states and 6108 transitions. Word has length 25 [2022-03-03 18:40:25,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:25,590 INFO L470 AbstractCegarLoop]: Abstraction has 1549 states and 6108 transitions. [2022-03-03 18:40:25,590 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) [2022-03-03 18:40:25,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1549 states and 6108 transitions. [2022-03-03 18:40:25,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:25,592 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:25,592 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] [2022-03-03 18:40:25,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-03 18:40:25,593 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:25,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:25,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1555341197, now seen corresponding path program 118 times [2022-03-03 18:40:25,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:25,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878280002] [2022-03-03 18:40:25,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:25,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:25,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:25,724 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:25,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878280002] [2022-03-03 18:40:25,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878280002] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:25,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:25,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:25,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923527546] [2022-03-03 18:40:25,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:25,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:25,725 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:25,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:25,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:25,725 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) [2022-03-03 18:40:25,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:25,836 INFO L93 Difference]: Finished difference Result 3384 states and 12540 transitions. [2022-03-03 18:40:25,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:25,836 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:25,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:25,843 INFO L225 Difference]: With dead ends: 3384 [2022-03-03 18:40:25,844 INFO L226 Difference]: Without dead ends: 3116 [2022-03-03 18:40:25,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:25,844 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 101 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:25,844 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] [2022-03-03 18:40:25,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-03-03 18:40:25,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 1503. [2022-03-03 18:40:25,870 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) [2022-03-03 18:40:25,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 5929 transitions. [2022-03-03 18:40:25,873 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 5929 transitions. Word has length 25 [2022-03-03 18:40:25,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:25,873 INFO L470 AbstractCegarLoop]: Abstraction has 1503 states and 5929 transitions. [2022-03-03 18:40:25,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:25,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 5929 transitions. [2022-03-03 18:40:25,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:25,875 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:25,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:25,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-03 18:40:25,876 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:25,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:25,876 INFO L85 PathProgramCache]: Analyzing trace with hash 620045525, now seen corresponding path program 119 times [2022-03-03 18:40:25,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:25,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029060799] [2022-03-03 18:40:25,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:25,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:26,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:26,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:26,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029060799] [2022-03-03 18:40:26,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029060799] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:26,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:26,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:26,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198067960] [2022-03-03 18:40:26,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:26,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:26,009 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:26,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:26,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:26,010 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) [2022-03-03 18:40:26,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:26,126 INFO L93 Difference]: Finished difference Result 3339 states and 12398 transitions. [2022-03-03 18:40:26,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:26,126 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:26,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:26,133 INFO L225 Difference]: With dead ends: 3339 [2022-03-03 18:40:26,133 INFO L226 Difference]: Without dead ends: 3156 [2022-03-03 18:40:26,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:26,134 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 113 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:26,134 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] [2022-03-03 18:40:26,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3156 states. [2022-03-03 18:40:26,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3156 to 1547. [2022-03-03 18:40:26,175 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) [2022-03-03 18:40:26,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 6081 transitions. [2022-03-03 18:40:26,178 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 6081 transitions. Word has length 25 [2022-03-03 18:40:26,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:26,178 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 6081 transitions. [2022-03-03 18:40:26,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:26,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 6081 transitions. [2022-03-03 18:40:26,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:26,181 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:26,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:26,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-03 18:40:26,181 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:26,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:26,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1824694707, now seen corresponding path program 120 times [2022-03-03 18:40:26,182 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:26,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227838016] [2022-03-03 18:40:26,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:26,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:26,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:26,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:26,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227838016] [2022-03-03 18:40:26,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227838016] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:26,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:26,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:26,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131709325] [2022-03-03 18:40:26,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:26,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:26,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:26,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:26,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:26,304 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) [2022-03-03 18:40:26,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:26,432 INFO L93 Difference]: Finished difference Result 3378 states and 12501 transitions. [2022-03-03 18:40:26,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:26,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:26,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:26,440 INFO L225 Difference]: With dead ends: 3378 [2022-03-03 18:40:26,440 INFO L226 Difference]: Without dead ends: 3057 [2022-03-03 18:40:26,440 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 [2022-03-03 18:40:26,440 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 [2022-03-03 18:40:26,441 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] [2022-03-03 18:40:26,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3057 states. [2022-03-03 18:40:26,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3057 to 1448. [2022-03-03 18:40:26,469 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) [2022-03-03 18:40:26,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5785 transitions. [2022-03-03 18:40:26,472 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5785 transitions. Word has length 25 [2022-03-03 18:40:26,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:26,472 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5785 transitions. [2022-03-03 18:40:26,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:26,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5785 transitions. [2022-03-03 18:40:26,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:26,475 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:26,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:26,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-03 18:40:26,475 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:26,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:26,475 INFO L85 PathProgramCache]: Analyzing trace with hash -863357259, now seen corresponding path program 121 times [2022-03-03 18:40:26,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:26,475 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009123710] [2022-03-03 18:40:26,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:26,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:26,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:26,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:26,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009123710] [2022-03-03 18:40:26,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009123710] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:26,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:26,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:26,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729872887] [2022-03-03 18:40:26,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:26,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:26,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:26,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:26,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:26,611 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) [2022-03-03 18:40:26,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:26,718 INFO L93 Difference]: Finished difference Result 3141 states and 11643 transitions. [2022-03-03 18:40:26,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:26,719 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:26,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:26,725 INFO L225 Difference]: With dead ends: 3141 [2022-03-03 18:40:26,725 INFO L226 Difference]: Without dead ends: 2982 [2022-03-03 18:40:26,726 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 [2022-03-03 18:40:26,726 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 [2022-03-03 18:40:26,726 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] [2022-03-03 18:40:26,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2022-03-03 18:40:26,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 1504. [2022-03-03 18:40:26,751 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) [2022-03-03 18:40:26,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 5997 transitions. [2022-03-03 18:40:26,754 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 5997 transitions. Word has length 25 [2022-03-03 18:40:26,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:26,754 INFO L470 AbstractCegarLoop]: Abstraction has 1504 states and 5997 transitions. [2022-03-03 18:40:26,754 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) [2022-03-03 18:40:26,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 5997 transitions. [2022-03-03 18:40:26,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:26,757 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:26,757 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] [2022-03-03 18:40:26,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-03 18:40:26,757 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:26,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:26,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1871655243, now seen corresponding path program 122 times [2022-03-03 18:40:26,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:26,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588412938] [2022-03-03 18:40:26,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:26,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:26,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:26,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:26,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588412938] [2022-03-03 18:40:26,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588412938] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:26,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:26,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:26,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777524789] [2022-03-03 18:40:26,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:26,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:26,882 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:26,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:26,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:26,882 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) [2022-03-03 18:40:26,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:26,996 INFO L93 Difference]: Finished difference Result 3204 states and 11850 transitions. [2022-03-03 18:40:26,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:26,996 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:26,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:27,004 INFO L225 Difference]: With dead ends: 3204 [2022-03-03 18:40:27,004 INFO L226 Difference]: Without dead ends: 2950 [2022-03-03 18:40:27,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:27,004 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 [2022-03-03 18:40:27,004 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] [2022-03-03 18:40:27,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2022-03-03 18:40:27,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1472. [2022-03-03 18:40:27,031 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) [2022-03-03 18:40:27,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5869 transitions. [2022-03-03 18:40:27,034 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5869 transitions. Word has length 25 [2022-03-03 18:40:27,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:27,035 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5869 transitions. [2022-03-03 18:40:27,035 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) [2022-03-03 18:40:27,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5869 transitions. [2022-03-03 18:40:27,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:27,037 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:27,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:27,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-03 18:40:27,037 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:27,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:27,038 INFO L85 PathProgramCache]: Analyzing trace with hash -824742575, now seen corresponding path program 123 times [2022-03-03 18:40:27,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:27,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143392241] [2022-03-03 18:40:27,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:27,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:27,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:27,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:27,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143392241] [2022-03-03 18:40:27,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143392241] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:27,187 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:27,187 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:27,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692734617] [2022-03-03 18:40:27,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:27,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:27,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:27,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:27,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:27,187 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) [2022-03-03 18:40:27,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:27,329 INFO L93 Difference]: Finished difference Result 3092 states and 11449 transitions. [2022-03-03 18:40:27,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:27,330 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 [2022-03-03 18:40:27,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:27,338 INFO L225 Difference]: With dead ends: 3092 [2022-03-03 18:40:27,338 INFO L226 Difference]: Without dead ends: 2933 [2022-03-03 18:40:27,338 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 [2022-03-03 18:40:27,338 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 115 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:27,338 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] [2022-03-03 18:40:27,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2022-03-03 18:40:27,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 1488. [2022-03-03 18:40:27,365 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) [2022-03-03 18:40:27,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 5917 transitions. [2022-03-03 18:40:27,369 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 5917 transitions. Word has length 25 [2022-03-03 18:40:27,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:27,369 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 5917 transitions. [2022-03-03 18:40:27,369 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) [2022-03-03 18:40:27,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 5917 transitions. [2022-03-03 18:40:27,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:27,371 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:27,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:27,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-03 18:40:27,372 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:27,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:27,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1880289971, now seen corresponding path program 124 times [2022-03-03 18:40:27,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:27,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364549840] [2022-03-03 18:40:27,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:27,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:27,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:27,521 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:27,521 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364549840] [2022-03-03 18:40:27,521 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364549840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:27,521 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:27,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:27,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757024306] [2022-03-03 18:40:27,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:27,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:27,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:27,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:27,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:27,522 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) [2022-03-03 18:40:27,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:27,676 INFO L93 Difference]: Finished difference Result 3122 states and 11542 transitions. [2022-03-03 18:40:27,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:27,677 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:27,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:27,683 INFO L225 Difference]: With dead ends: 3122 [2022-03-03 18:40:27,683 INFO L226 Difference]: Without dead ends: 2917 [2022-03-03 18:40:27,683 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 [2022-03-03 18:40:27,684 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:27,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 180 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:27,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2022-03-03 18:40:27,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 1472. [2022-03-03 18:40:27,710 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) [2022-03-03 18:40:27,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5861 transitions. [2022-03-03 18:40:27,713 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5861 transitions. Word has length 25 [2022-03-03 18:40:27,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:27,713 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5861 transitions. [2022-03-03 18:40:27,713 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) [2022-03-03 18:40:27,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5861 transitions. [2022-03-03 18:40:27,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:27,716 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:27,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:27,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-03 18:40:27,716 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:27,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:27,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1242126485, now seen corresponding path program 125 times [2022-03-03 18:40:27,716 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:27,716 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416421054] [2022-03-03 18:40:27,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:27,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:27,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:27,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:27,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416421054] [2022-03-03 18:40:27,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416421054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:27,866 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:27,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:27,866 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332997328] [2022-03-03 18:40:27,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:27,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:27,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:27,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:27,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:27,867 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) [2022-03-03 18:40:28,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:28,021 INFO L93 Difference]: Finished difference Result 3232 states and 11947 transitions. [2022-03-03 18:40:28,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:28,021 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 [2022-03-03 18:40:28,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:28,030 INFO L225 Difference]: With dead ends: 3232 [2022-03-03 18:40:28,031 INFO L226 Difference]: Without dead ends: 3043 [2022-03-03 18:40:28,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:28,031 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 [2022-03-03 18:40:28,031 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] [2022-03-03 18:40:28,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states. [2022-03-03 18:40:28,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 1535. [2022-03-03 18:40:28,082 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) [2022-03-03 18:40:28,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 6068 transitions. [2022-03-03 18:40:28,085 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 6068 transitions. Word has length 25 [2022-03-03 18:40:28,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:28,086 INFO L470 AbstractCegarLoop]: Abstraction has 1535 states and 6068 transitions. [2022-03-03 18:40:28,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:28,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 6068 transitions. [2022-03-03 18:40:28,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:28,088 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:28,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:28,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-03 18:40:28,088 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:28,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:28,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1540179443, now seen corresponding path program 126 times [2022-03-03 18:40:28,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:28,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460163584] [2022-03-03 18:40:28,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:28,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:28,209 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:28,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460163584] [2022-03-03 18:40:28,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460163584] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:28,210 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:28,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:28,210 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931359929] [2022-03-03 18:40:28,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:28,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:28,210 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:28,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:28,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:28,210 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) [2022-03-03 18:40:28,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:28,328 INFO L93 Difference]: Finished difference Result 3265 states and 12030 transitions. [2022-03-03 18:40:28,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:28,329 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 [2022-03-03 18:40:28,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:28,336 INFO L225 Difference]: With dead ends: 3265 [2022-03-03 18:40:28,336 INFO L226 Difference]: Without dead ends: 2956 [2022-03-03 18:40:28,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:28,336 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 [2022-03-03 18:40:28,336 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] [2022-03-03 18:40:28,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2022-03-03 18:40:28,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1448. [2022-03-03 18:40:28,364 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) [2022-03-03 18:40:28,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5773 transitions. [2022-03-03 18:40:28,367 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5773 transitions. Word has length 25 [2022-03-03 18:40:28,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:28,367 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5773 transitions. [2022-03-03 18:40:28,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:28,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5773 transitions. [2022-03-03 18:40:28,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:28,369 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:28,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:28,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-03 18:40:28,370 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:28,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:28,370 INFO L85 PathProgramCache]: Analyzing trace with hash 804518581, now seen corresponding path program 127 times [2022-03-03 18:40:28,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:28,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901816175] [2022-03-03 18:40:28,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:28,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:28,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:28,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:28,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901816175] [2022-03-03 18:40:28,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901816175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:28,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:28,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:28,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362644616] [2022-03-03 18:40:28,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:28,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:28,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:28,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:28,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:28,493 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) [2022-03-03 18:40:28,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:28,615 INFO L93 Difference]: Finished difference Result 3114 states and 11547 transitions. [2022-03-03 18:40:28,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:28,615 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 [2022-03-03 18:40:28,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:28,622 INFO L225 Difference]: With dead ends: 3114 [2022-03-03 18:40:28,622 INFO L226 Difference]: Without dead ends: 2955 [2022-03-03 18:40:28,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:28,623 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 [2022-03-03 18:40:28,623 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] [2022-03-03 18:40:28,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states. [2022-03-03 18:40:28,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 1496. [2022-03-03 18:40:28,651 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) [2022-03-03 18:40:28,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 5957 transitions. [2022-03-03 18:40:28,655 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 5957 transitions. Word has length 25 [2022-03-03 18:40:28,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:28,655 INFO L470 AbstractCegarLoop]: Abstraction has 1496 states and 5957 transitions. [2022-03-03 18:40:28,655 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) [2022-03-03 18:40:28,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 5957 transitions. [2022-03-03 18:40:28,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:28,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:28,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:28,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-03 18:40:28,657 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:28,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:28,658 INFO L85 PathProgramCache]: Analyzing trace with hash -203779403, now seen corresponding path program 128 times [2022-03-03 18:40:28,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:28,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427771724] [2022-03-03 18:40:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:28,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:28,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:28,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:28,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427771724] [2022-03-03 18:40:28,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427771724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:28,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:28,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:28,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062636439] [2022-03-03 18:40:28,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:28,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:28,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:28,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:28,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:28,785 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) [2022-03-03 18:40:28,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:28,893 INFO L93 Difference]: Finished difference Result 3177 states and 11754 transitions. [2022-03-03 18:40:28,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:28,894 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 [2022-03-03 18:40:28,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:28,900 INFO L225 Difference]: With dead ends: 3177 [2022-03-03 18:40:28,900 INFO L226 Difference]: Without dead ends: 2923 [2022-03-03 18:40:28,901 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 [2022-03-03 18:40:28,901 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 [2022-03-03 18:40:28,901 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] [2022-03-03 18:40:28,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2022-03-03 18:40:28,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 1464. [2022-03-03 18:40:28,927 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) [2022-03-03 18:40:28,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5829 transitions. [2022-03-03 18:40:28,931 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5829 transitions. Word has length 25 [2022-03-03 18:40:28,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:28,931 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5829 transitions. [2022-03-03 18:40:28,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:28,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5829 transitions. [2022-03-03 18:40:28,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:28,933 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:28,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:28,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-03 18:40:28,934 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:28,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:28,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1793552087, now seen corresponding path program 129 times [2022-03-03 18:40:28,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:28,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385641608] [2022-03-03 18:40:28,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:28,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:29,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:29,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:29,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385641608] [2022-03-03 18:40:29,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385641608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:29,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:29,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:29,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994905859] [2022-03-03 18:40:29,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:29,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:29,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:29,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:29,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:29,063 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) [2022-03-03 18:40:29,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:29,167 INFO L93 Difference]: Finished difference Result 3063 states and 11348 transitions. [2022-03-03 18:40:29,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:29,168 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 [2022-03-03 18:40:29,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:29,174 INFO L225 Difference]: With dead ends: 3063 [2022-03-03 18:40:29,174 INFO L226 Difference]: Without dead ends: 2904 [2022-03-03 18:40:29,175 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 [2022-03-03 18:40:29,175 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 [2022-03-03 18:40:29,175 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] [2022-03-03 18:40:29,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2022-03-03 18:40:29,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 1480. [2022-03-03 18:40:29,201 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) [2022-03-03 18:40:29,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 5877 transitions. [2022-03-03 18:40:29,204 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 5877 transitions. Word has length 25 [2022-03-03 18:40:29,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:29,205 INFO L470 AbstractCegarLoop]: Abstraction has 1480 states and 5877 transitions. [2022-03-03 18:40:29,205 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) [2022-03-03 18:40:29,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 5877 transitions. [2022-03-03 18:40:29,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:29,207 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:29,207 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] [2022-03-03 18:40:29,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-03 18:40:29,207 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:29,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:29,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1493117225, now seen corresponding path program 130 times [2022-03-03 18:40:29,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:29,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879967020] [2022-03-03 18:40:29,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:29,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:29,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:29,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:29,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879967020] [2022-03-03 18:40:29,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879967020] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:29,337 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:29,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:29,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092376090] [2022-03-03 18:40:29,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:29,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:29,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:29,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:29,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:29,337 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) [2022-03-03 18:40:29,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:29,460 INFO L93 Difference]: Finished difference Result 3091 states and 11436 transitions. [2022-03-03 18:40:29,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:29,460 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 [2022-03-03 18:40:29,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:29,467 INFO L225 Difference]: With dead ends: 3091 [2022-03-03 18:40:29,467 INFO L226 Difference]: Without dead ends: 2888 [2022-03-03 18:40:29,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:29,468 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 [2022-03-03 18:40:29,468 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] [2022-03-03 18:40:29,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2022-03-03 18:40:29,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 1464. [2022-03-03 18:40:29,494 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) [2022-03-03 18:40:29,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5821 transitions. [2022-03-03 18:40:29,497 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5821 transitions. Word has length 25 [2022-03-03 18:40:29,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:29,497 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5821 transitions. [2022-03-03 18:40:29,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:29,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5821 transitions. [2022-03-03 18:40:29,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:29,499 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:29,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:29,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-03 18:40:29,499 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:29,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:29,500 INFO L85 PathProgramCache]: Analyzing trace with hash 195129047, now seen corresponding path program 131 times [2022-03-03 18:40:29,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:29,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995914499] [2022-03-03 18:40:29,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:29,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:29,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:29,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:29,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995914499] [2022-03-03 18:40:29,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995914499] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:29,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:29,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:29,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687417332] [2022-03-03 18:40:29,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:29,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:29,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:29,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:29,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:29,623 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) [2022-03-03 18:40:29,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:29,739 INFO L93 Difference]: Finished difference Result 3184 states and 11790 transitions. [2022-03-03 18:40:29,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:29,739 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:29,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:29,747 INFO L225 Difference]: With dead ends: 3184 [2022-03-03 18:40:29,747 INFO L226 Difference]: Without dead ends: 2997 [2022-03-03 18:40:29,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:29,747 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 [2022-03-03 18:40:29,747 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] [2022-03-03 18:40:29,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2022-03-03 18:40:29,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 1510. [2022-03-03 18:40:29,777 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) [2022-03-03 18:40:29,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 5978 transitions. [2022-03-03 18:40:29,780 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 5978 transitions. Word has length 25 [2022-03-03 18:40:29,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:29,780 INFO L470 AbstractCegarLoop]: Abstraction has 1510 states and 5978 transitions. [2022-03-03 18:40:29,780 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) [2022-03-03 18:40:29,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 5978 transitions. [2022-03-03 18:40:29,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:29,783 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:29,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:29,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-03 18:40:29,783 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:29,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:29,783 INFO L85 PathProgramCache]: Analyzing trace with hash -158010443, now seen corresponding path program 132 times [2022-03-03 18:40:29,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:29,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767710986] [2022-03-03 18:40:29,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:29,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:29,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:29,921 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:29,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767710986] [2022-03-03 18:40:29,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767710986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:29,921 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:29,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:29,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627125845] [2022-03-03 18:40:29,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:29,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:29,922 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:29,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:29,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:29,922 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) [2022-03-03 18:40:30,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:30,025 INFO L93 Difference]: Finished difference Result 3219 states and 11879 transitions. [2022-03-03 18:40:30,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:30,026 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 [2022-03-03 18:40:30,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:30,032 INFO L225 Difference]: With dead ends: 3219 [2022-03-03 18:40:30,032 INFO L226 Difference]: Without dead ends: 2935 [2022-03-03 18:40:30,033 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 [2022-03-03 18:40:30,033 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 [2022-03-03 18:40:30,033 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] [2022-03-03 18:40:30,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2022-03-03 18:40:30,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1448. [2022-03-03 18:40:30,059 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) [2022-03-03 18:40:30,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5765 transitions. [2022-03-03 18:40:30,062 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5765 transitions. Word has length 25 [2022-03-03 18:40:30,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:30,062 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5765 transitions. [2022-03-03 18:40:30,062 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) [2022-03-03 18:40:30,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5765 transitions. [2022-03-03 18:40:30,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:30,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:30,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:30,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-03 18:40:30,064 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:30,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:30,065 INFO L85 PathProgramCache]: Analyzing trace with hash -833504879, now seen corresponding path program 133 times [2022-03-03 18:40:30,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:30,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195080003] [2022-03-03 18:40:30,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:30,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:30,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:30,206 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:30,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195080003] [2022-03-03 18:40:30,206 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195080003] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:30,206 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:30,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:30,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579033220] [2022-03-03 18:40:30,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:30,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:30,207 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:30,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:30,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:30,207 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) [2022-03-03 18:40:30,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:30,304 INFO L93 Difference]: Finished difference Result 2992 states and 11083 transitions. [2022-03-03 18:40:30,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:30,305 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 [2022-03-03 18:40:30,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:30,311 INFO L225 Difference]: With dead ends: 2992 [2022-03-03 18:40:30,312 INFO L226 Difference]: Without dead ends: 2833 [2022-03-03 18:40:30,312 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 [2022-03-03 18:40:30,312 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 [2022-03-03 18:40:30,312 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] [2022-03-03 18:40:30,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2833 states. [2022-03-03 18:40:30,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2833 to 1472. [2022-03-03 18:40:30,342 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) [2022-03-03 18:40:30,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5849 transitions. [2022-03-03 18:40:30,346 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5849 transitions. Word has length 25 [2022-03-03 18:40:30,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:30,346 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5849 transitions. [2022-03-03 18:40:30,346 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) [2022-03-03 18:40:30,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5849 transitions. [2022-03-03 18:40:30,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:30,348 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:30,348 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] [2022-03-03 18:40:30,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-03 18:40:30,348 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:30,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:30,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1871527667, now seen corresponding path program 134 times [2022-03-03 18:40:30,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:30,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654946218] [2022-03-03 18:40:30,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:30,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:30,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:30,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:30,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654946218] [2022-03-03 18:40:30,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654946218] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:30,469 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:30,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:30,469 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628584617] [2022-03-03 18:40:30,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:30,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:30,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:30,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:30,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:30,470 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) [2022-03-03 18:40:30,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:30,591 INFO L93 Difference]: Finished difference Result 3022 states and 11176 transitions. [2022-03-03 18:40:30,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:30,592 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:30,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:30,598 INFO L225 Difference]: With dead ends: 3022 [2022-03-03 18:40:30,599 INFO L226 Difference]: Without dead ends: 2817 [2022-03-03 18:40:30,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:30,599 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 [2022-03-03 18:40:30,599 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] [2022-03-03 18:40:30,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states. [2022-03-03 18:40:30,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 1456. [2022-03-03 18:40:30,625 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) [2022-03-03 18:40:30,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5793 transitions. [2022-03-03 18:40:30,629 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5793 transitions. Word has length 25 [2022-03-03 18:40:30,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:30,629 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5793 transitions. [2022-03-03 18:40:30,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:30,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5793 transitions. [2022-03-03 18:40:30,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:30,631 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:30,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:30,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-03 18:40:30,631 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:30,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:30,631 INFO L85 PathProgramCache]: Analyzing trace with hash 247557747, now seen corresponding path program 135 times [2022-03-03 18:40:30,631 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:30,631 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071079359] [2022-03-03 18:40:30,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:30,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:30,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:30,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:30,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071079359] [2022-03-03 18:40:30,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071079359] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:30,760 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:30,760 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:30,760 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132324430] [2022-03-03 18:40:30,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:30,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:30,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:30,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:30,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:30,761 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) [2022-03-03 18:40:30,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:30,887 INFO L93 Difference]: Finished difference Result 2990 states and 11070 transitions. [2022-03-03 18:40:30,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:30,887 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 [2022-03-03 18:40:30,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:30,894 INFO L225 Difference]: With dead ends: 2990 [2022-03-03 18:40:30,894 INFO L226 Difference]: Without dead ends: 2831 [2022-03-03 18:40:30,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:30,894 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 [2022-03-03 18:40:30,894 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] [2022-03-03 18:40:30,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2022-03-03 18:40:30,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 1472. [2022-03-03 18:40:30,920 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) [2022-03-03 18:40:30,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5841 transitions. [2022-03-03 18:40:30,923 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5841 transitions. Word has length 25 [2022-03-03 18:40:30,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:30,923 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5841 transitions. [2022-03-03 18:40:30,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:30,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5841 transitions. [2022-03-03 18:40:30,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:30,925 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:30,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:30,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-03 18:40:30,925 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:30,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:30,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1255855731, now seen corresponding path program 136 times [2022-03-03 18:40:30,926 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:30,926 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148232553] [2022-03-03 18:40:30,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:30,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:31,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:31,050 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:31,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148232553] [2022-03-03 18:40:31,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148232553] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:31,051 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:31,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:31,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540455560] [2022-03-03 18:40:31,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:31,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:31,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:31,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:31,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:31,051 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) [2022-03-03 18:40:31,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:31,166 INFO L93 Difference]: Finished difference Result 3018 states and 11158 transitions. [2022-03-03 18:40:31,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:31,166 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:31,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:31,172 INFO L225 Difference]: With dead ends: 3018 [2022-03-03 18:40:31,173 INFO L226 Difference]: Without dead ends: 2815 [2022-03-03 18:40:31,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:31,173 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 [2022-03-03 18:40:31,173 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] [2022-03-03 18:40:31,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2022-03-03 18:40:31,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 1456. [2022-03-03 18:40:31,198 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) [2022-03-03 18:40:31,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5785 transitions. [2022-03-03 18:40:31,201 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5785 transitions. Word has length 25 [2022-03-03 18:40:31,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:31,201 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5785 transitions. [2022-03-03 18:40:31,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:31,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5785 transitions. [2022-03-03 18:40:31,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:31,204 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:31,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:31,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-03-03 18:40:31,204 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:31,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:31,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1664719701, now seen corresponding path program 137 times [2022-03-03 18:40:31,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:31,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644926075] [2022-03-03 18:40:31,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:31,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:31,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:31,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:31,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644926075] [2022-03-03 18:40:31,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644926075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:31,330 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:31,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:31,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566962719] [2022-03-03 18:40:31,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:31,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:31,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:31,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:31,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:31,330 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) [2022-03-03 18:40:31,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:31,445 INFO L93 Difference]: Finished difference Result 3064 states and 11339 transitions. [2022-03-03 18:40:31,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:31,445 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 [2022-03-03 18:40:31,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:31,452 INFO L225 Difference]: With dead ends: 3064 [2022-03-03 18:40:31,452 INFO L226 Difference]: Without dead ends: 2875 [2022-03-03 18:40:31,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:31,452 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 106 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:31,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 144 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:31,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2022-03-03 18:40:31,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 1486. [2022-03-03 18:40:31,479 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) [2022-03-03 18:40:31,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5878 transitions. [2022-03-03 18:40:31,482 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5878 transitions. Word has length 25 [2022-03-03 18:40:31,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:31,482 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5878 transitions. [2022-03-03 18:40:31,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:31,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5878 transitions. [2022-03-03 18:40:31,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:31,484 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:31,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:31,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-03-03 18:40:31,485 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:31,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:31,485 INFO L85 PathProgramCache]: Analyzing trace with hash -378617293, now seen corresponding path program 138 times [2022-03-03 18:40:31,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:31,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593284595] [2022-03-03 18:40:31,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:31,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:31,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:31,618 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:31,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593284595] [2022-03-03 18:40:31,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593284595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:31,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:31,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:31,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903296769] [2022-03-03 18:40:31,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:31,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:31,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:31,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:31,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:31,619 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) [2022-03-03 18:40:31,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:31,743 INFO L93 Difference]: Finished difference Result 3062 states and 11304 transitions. [2022-03-03 18:40:31,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:31,744 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 [2022-03-03 18:40:31,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:31,750 INFO L225 Difference]: With dead ends: 3062 [2022-03-03 18:40:31,751 INFO L226 Difference]: Without dead ends: 2837 [2022-03-03 18:40:31,751 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 [2022-03-03 18:40:31,751 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:31,751 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] [2022-03-03 18:40:31,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2837 states. [2022-03-03 18:40:31,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2837 to 1448. [2022-03-03 18:40:31,792 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) [2022-03-03 18:40:31,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5761 transitions. [2022-03-03 18:40:31,795 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5761 transitions. Word has length 25 [2022-03-03 18:40:31,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:31,795 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5761 transitions. [2022-03-03 18:40:31,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:31,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5761 transitions. [2022-03-03 18:40:31,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:31,799 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:31,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:31,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-03-03 18:40:31,799 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:31,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:31,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1725034313, now seen corresponding path program 139 times [2022-03-03 18:40:31,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:31,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978075952] [2022-03-03 18:40:31,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:31,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:31,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:31,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:31,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978075952] [2022-03-03 18:40:31,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978075952] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:31,925 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:31,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:31,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59741920] [2022-03-03 18:40:31,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:31,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:31,925 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:31,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:31,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:31,925 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) [2022-03-03 18:40:32,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:32,054 INFO L93 Difference]: Finished difference Result 3235 states and 11988 transitions. [2022-03-03 18:40:32,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:32,054 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 [2022-03-03 18:40:32,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:32,061 INFO L225 Difference]: With dead ends: 3235 [2022-03-03 18:40:32,062 INFO L226 Difference]: Without dead ends: 3046 [2022-03-03 18:40:32,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:32,062 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 120 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:32,062 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] [2022-03-03 18:40:32,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2022-03-03 18:40:32,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 1517. [2022-03-03 18:40:32,090 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) [2022-03-03 18:40:32,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 6007 transitions. [2022-03-03 18:40:32,093 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 6007 transitions. Word has length 25 [2022-03-03 18:40:32,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:32,094 INFO L470 AbstractCegarLoop]: Abstraction has 1517 states and 6007 transitions. [2022-03-03 18:40:32,094 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) [2022-03-03 18:40:32,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 6007 transitions. [2022-03-03 18:40:32,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:32,096 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:32,096 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] [2022-03-03 18:40:32,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-03-03 18:40:32,096 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:32,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:32,096 INFO L85 PathProgramCache]: Analyzing trace with hash 526595989, now seen corresponding path program 140 times [2022-03-03 18:40:32,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:32,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440731023] [2022-03-03 18:40:32,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:32,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:32,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:32,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:32,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440731023] [2022-03-03 18:40:32,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440731023] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:32,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:32,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:32,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767121181] [2022-03-03 18:40:32,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:32,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:32,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:32,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:32,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:32,221 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) [2022-03-03 18:40:32,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:32,339 INFO L93 Difference]: Finished difference Result 3233 states and 11953 transitions. [2022-03-03 18:40:32,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:32,339 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 [2022-03-03 18:40:32,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:32,348 INFO L225 Difference]: With dead ends: 3233 [2022-03-03 18:40:32,348 INFO L226 Difference]: Without dead ends: 3016 [2022-03-03 18:40:32,348 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 [2022-03-03 18:40:32,348 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 124 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:32,348 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] [2022-03-03 18:40:32,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2022-03-03 18:40:32,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 1487. [2022-03-03 18:40:32,380 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) [2022-03-03 18:40:32,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 5899 transitions. [2022-03-03 18:40:32,383 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 5899 transitions. Word has length 25 [2022-03-03 18:40:32,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:32,383 INFO L470 AbstractCegarLoop]: Abstraction has 1487 states and 5899 transitions. [2022-03-03 18:40:32,383 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) [2022-03-03 18:40:32,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 5899 transitions. [2022-03-03 18:40:32,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:32,385 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:32,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:32,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-03-03 18:40:32,385 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:32,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:32,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1789667819, now seen corresponding path program 141 times [2022-03-03 18:40:32,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:32,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708210808] [2022-03-03 18:40:32,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:32,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:32,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:32,509 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:32,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708210808] [2022-03-03 18:40:32,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708210808] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:32,509 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:32,509 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:32,509 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878392689] [2022-03-03 18:40:32,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:32,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:32,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:32,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:32,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:32,510 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) [2022-03-03 18:40:32,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:32,641 INFO L93 Difference]: Finished difference Result 3303 states and 12207 transitions. [2022-03-03 18:40:32,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:32,642 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 [2022-03-03 18:40:32,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:32,649 INFO L225 Difference]: With dead ends: 3303 [2022-03-03 18:40:32,649 INFO L226 Difference]: Without dead ends: 3114 [2022-03-03 18:40:32,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:32,649 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 [2022-03-03 18:40:32,649 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] [2022-03-03 18:40:32,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3114 states. [2022-03-03 18:40:32,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3114 to 1550. [2022-03-03 18:40:32,676 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) [2022-03-03 18:40:32,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 6106 transitions. [2022-03-03 18:40:32,679 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 6106 transitions. Word has length 25 [2022-03-03 18:40:32,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:32,679 INFO L470 AbstractCegarLoop]: Abstraction has 1550 states and 6106 transitions. [2022-03-03 18:40:32,679 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) [2022-03-03 18:40:32,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 6106 transitions. [2022-03-03 18:40:32,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:32,681 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:32,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:32,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-03-03 18:40:32,682 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:32,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:32,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1949511189, now seen corresponding path program 142 times [2022-03-03 18:40:32,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:32,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279055205] [2022-03-03 18:40:32,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:32,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:32,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:32,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:32,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279055205] [2022-03-03 18:40:32,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279055205] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:32,804 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:32,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:32,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661856812] [2022-03-03 18:40:32,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:32,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:32,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:32,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:32,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:32,805 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) [2022-03-03 18:40:32,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:32,930 INFO L93 Difference]: Finished difference Result 3336 states and 12290 transitions. [2022-03-03 18:40:32,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:32,930 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:32,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:32,938 INFO L225 Difference]: With dead ends: 3336 [2022-03-03 18:40:32,938 INFO L226 Difference]: Without dead ends: 3051 [2022-03-03 18:40:32,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:32,939 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 [2022-03-03 18:40:32,939 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] [2022-03-03 18:40:32,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2022-03-03 18:40:32,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 1487. [2022-03-03 18:40:32,970 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) [2022-03-03 18:40:32,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 5868 transitions. [2022-03-03 18:40:32,974 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 5868 transitions. Word has length 25 [2022-03-03 18:40:32,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:32,974 INFO L470 AbstractCegarLoop]: Abstraction has 1487 states and 5868 transitions. [2022-03-03 18:40:32,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:32,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 5868 transitions. [2022-03-03 18:40:32,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:32,976 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:32,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:32,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-03-03 18:40:32,976 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:32,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:32,977 INFO L85 PathProgramCache]: Analyzing trace with hash -807320205, now seen corresponding path program 143 times [2022-03-03 18:40:32,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:32,977 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999511405] [2022-03-03 18:40:32,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:32,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:33,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:33,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:33,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999511405] [2022-03-03 18:40:33,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999511405] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:33,101 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:33,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:33,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935355328] [2022-03-03 18:40:33,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:33,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:33,101 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:33,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:33,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:33,102 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) [2022-03-03 18:40:33,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:33,222 INFO L93 Difference]: Finished difference Result 3282 states and 12115 transitions. [2022-03-03 18:40:33,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:33,222 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 [2022-03-03 18:40:33,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:33,229 INFO L225 Difference]: With dead ends: 3282 [2022-03-03 18:40:33,229 INFO L226 Difference]: Without dead ends: 3095 [2022-03-03 18:40:33,229 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 [2022-03-03 18:40:33,230 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 [2022-03-03 18:40:33,230 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] [2022-03-03 18:40:33,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2022-03-03 18:40:33,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 1533. [2022-03-03 18:40:33,256 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) [2022-03-03 18:40:33,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 6025 transitions. [2022-03-03 18:40:33,260 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 6025 transitions. Word has length 25 [2022-03-03 18:40:33,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:33,260 INFO L470 AbstractCegarLoop]: Abstraction has 1533 states and 6025 transitions. [2022-03-03 18:40:33,260 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) [2022-03-03 18:40:33,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 6025 transitions. [2022-03-03 18:40:33,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:33,262 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:33,262 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] [2022-03-03 18:40:33,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-03-03 18:40:33,262 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:33,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:33,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1130257493, now seen corresponding path program 144 times [2022-03-03 18:40:33,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:33,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842390086] [2022-03-03 18:40:33,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:33,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:33,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:33,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:33,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842390086] [2022-03-03 18:40:33,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842390086] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:33,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:33,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:33,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385751973] [2022-03-03 18:40:33,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:33,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:33,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:33,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:33,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:33,388 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) [2022-03-03 18:40:33,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:33,500 INFO L93 Difference]: Finished difference Result 3317 states and 12204 transitions. [2022-03-03 18:40:33,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:33,500 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 [2022-03-03 18:40:33,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:33,506 INFO L225 Difference]: With dead ends: 3317 [2022-03-03 18:40:33,507 INFO L226 Difference]: Without dead ends: 2994 [2022-03-03 18:40:33,507 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 [2022-03-03 18:40:33,507 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 100 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:33,507 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] [2022-03-03 18:40:33,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2022-03-03 18:40:33,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 1432. [2022-03-03 18:40:33,550 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) [2022-03-03 18:40:33,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5709 transitions. [2022-03-03 18:40:33,553 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5709 transitions. Word has length 25 [2022-03-03 18:40:33,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:33,553 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5709 transitions. [2022-03-03 18:40:33,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:33,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5709 transitions. [2022-03-03 18:40:33,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:33,556 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:33,556 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] [2022-03-03 18:40:33,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-03-03 18:40:33,556 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:33,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:33,556 INFO L85 PathProgramCache]: Analyzing trace with hash -2138101417, now seen corresponding path program 145 times [2022-03-03 18:40:33,556 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:33,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986838878] [2022-03-03 18:40:33,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:33,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:33,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:33,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986838878] [2022-03-03 18:40:33,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986838878] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:33,678 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:33,678 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:33,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283717157] [2022-03-03 18:40:33,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:33,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:33,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:33,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:33,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:33,678 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) [2022-03-03 18:40:33,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:33,788 INFO L93 Difference]: Finished difference Result 3078 states and 11404 transitions. [2022-03-03 18:40:33,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:33,788 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 [2022-03-03 18:40:33,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:33,795 INFO L225 Difference]: With dead ends: 3078 [2022-03-03 18:40:33,795 INFO L226 Difference]: Without dead ends: 2919 [2022-03-03 18:40:33,795 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 [2022-03-03 18:40:33,795 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 [2022-03-03 18:40:33,795 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] [2022-03-03 18:40:33,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states. [2022-03-03 18:40:33,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 1500. [2022-03-03 18:40:33,820 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) [2022-03-03 18:40:33,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5977 transitions. [2022-03-03 18:40:33,823 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5977 transitions. Word has length 25 [2022-03-03 18:40:33,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:33,824 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5977 transitions. [2022-03-03 18:40:33,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:33,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5977 transitions. [2022-03-03 18:40:33,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:33,826 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:33,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:33,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-03-03 18:40:33,826 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:33,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:33,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1148567895, now seen corresponding path program 146 times [2022-03-03 18:40:33,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:33,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032935087] [2022-03-03 18:40:33,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:33,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:33,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:33,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:33,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032935087] [2022-03-03 18:40:33,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032935087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:33,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:33,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:33,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006130588] [2022-03-03 18:40:33,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:33,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:33,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:33,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:33,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:33,942 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) [2022-03-03 18:40:34,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:34,048 INFO L93 Difference]: Finished difference Result 3141 states and 11611 transitions. [2022-03-03 18:40:34,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:34,048 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:34,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:34,054 INFO L225 Difference]: With dead ends: 3141 [2022-03-03 18:40:34,054 INFO L226 Difference]: Without dead ends: 2887 [2022-03-03 18:40:34,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:34,054 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 [2022-03-03 18:40:34,055 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] [2022-03-03 18:40:34,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2022-03-03 18:40:34,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 1468. [2022-03-03 18:40:34,078 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) [2022-03-03 18:40:34,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5849 transitions. [2022-03-03 18:40:34,081 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5849 transitions. Word has length 25 [2022-03-03 18:40:34,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:34,081 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5849 transitions. [2022-03-03 18:40:34,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:34,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5849 transitions. [2022-03-03 18:40:34,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:34,083 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:34,083 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] [2022-03-03 18:40:34,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-03-03 18:40:34,083 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:34,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:34,084 INFO L85 PathProgramCache]: Analyzing trace with hash -2099486733, now seen corresponding path program 147 times [2022-03-03 18:40:34,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:34,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755061299] [2022-03-03 18:40:34,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:34,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:34,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:34,209 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:34,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755061299] [2022-03-03 18:40:34,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755061299] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:34,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:34,209 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:34,209 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035577999] [2022-03-03 18:40:34,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:34,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:34,210 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:34,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:34,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:34,210 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) [2022-03-03 18:40:34,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:34,317 INFO L93 Difference]: Finished difference Result 3029 states and 11210 transitions. [2022-03-03 18:40:34,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:34,317 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 [2022-03-03 18:40:34,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:34,323 INFO L225 Difference]: With dead ends: 3029 [2022-03-03 18:40:34,324 INFO L226 Difference]: Without dead ends: 2870 [2022-03-03 18:40:34,324 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 [2022-03-03 18:40:34,324 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 113 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:34,324 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] [2022-03-03 18:40:34,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2022-03-03 18:40:34,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 1484. [2022-03-03 18:40:34,349 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) [2022-03-03 18:40:34,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 5897 transitions. [2022-03-03 18:40:34,353 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 5897 transitions. Word has length 25 [2022-03-03 18:40:34,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:34,353 INFO L470 AbstractCegarLoop]: Abstraction has 1484 states and 5897 transitions. [2022-03-03 18:40:34,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:34,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 5897 transitions. [2022-03-03 18:40:34,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:34,355 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:34,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:34,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-03-03 18:40:34,355 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:34,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:34,355 INFO L85 PathProgramCache]: Analyzing trace with hash 605545813, now seen corresponding path program 148 times [2022-03-03 18:40:34,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:34,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619746882] [2022-03-03 18:40:34,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:34,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:34,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:34,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:34,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619746882] [2022-03-03 18:40:34,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619746882] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:34,481 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:34,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:34,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154529126] [2022-03-03 18:40:34,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:34,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:34,481 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:34,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:34,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:34,481 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) [2022-03-03 18:40:34,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:34,603 INFO L93 Difference]: Finished difference Result 3059 states and 11303 transitions. [2022-03-03 18:40:34,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:34,604 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 [2022-03-03 18:40:34,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:34,610 INFO L225 Difference]: With dead ends: 3059 [2022-03-03 18:40:34,611 INFO L226 Difference]: Without dead ends: 2854 [2022-03-03 18:40:34,611 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 [2022-03-03 18:40:34,611 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 [2022-03-03 18:40:34,611 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] [2022-03-03 18:40:34,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2022-03-03 18:40:34,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 1468. [2022-03-03 18:40:34,638 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) [2022-03-03 18:40:34,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5841 transitions. [2022-03-03 18:40:34,641 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5841 transitions. Word has length 25 [2022-03-03 18:40:34,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:34,641 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5841 transitions. [2022-03-03 18:40:34,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:34,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5841 transitions. [2022-03-03 18:40:34,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:34,643 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:34,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:34,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-03-03 18:40:34,644 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:34,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:34,644 INFO L85 PathProgramCache]: Analyzing trace with hash -32617673, now seen corresponding path program 149 times [2022-03-03 18:40:34,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:34,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284565912] [2022-03-03 18:40:34,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:34,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:34,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:34,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:34,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284565912] [2022-03-03 18:40:34,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284565912] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:34,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:34,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:34,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349389991] [2022-03-03 18:40:34,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:34,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:34,772 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:34,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:34,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:34,772 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) [2022-03-03 18:40:34,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:34,905 INFO L93 Difference]: Finished difference Result 3169 states and 11708 transitions. [2022-03-03 18:40:34,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:34,905 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:34,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:34,912 INFO L225 Difference]: With dead ends: 3169 [2022-03-03 18:40:34,912 INFO L226 Difference]: Without dead ends: 2980 [2022-03-03 18:40:34,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:34,913 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 [2022-03-03 18:40:34,913 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] [2022-03-03 18:40:34,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2980 states. [2022-03-03 18:40:34,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2980 to 1531. [2022-03-03 18:40:34,939 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) [2022-03-03 18:40:34,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 6048 transitions. [2022-03-03 18:40:34,942 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 6048 transitions. Word has length 25 [2022-03-03 18:40:34,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:34,942 INFO L470 AbstractCegarLoop]: Abstraction has 1531 states and 6048 transitions. [2022-03-03 18:40:34,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:34,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 6048 transitions. [2022-03-03 18:40:34,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:34,945 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:34,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:34,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-03-03 18:40:34,945 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:34,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:34,945 INFO L85 PathProgramCache]: Analyzing trace with hash 265435285, now seen corresponding path program 150 times [2022-03-03 18:40:34,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:34,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982557690] [2022-03-03 18:40:34,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:34,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:35,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:35,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:35,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982557690] [2022-03-03 18:40:35,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982557690] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:35,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:35,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:35,073 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14636767] [2022-03-03 18:40:35,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:35,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:35,073 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:35,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:35,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:35,073 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) [2022-03-03 18:40:35,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:35,209 INFO L93 Difference]: Finished difference Result 3202 states and 11791 transitions. [2022-03-03 18:40:35,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:35,209 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 [2022-03-03 18:40:35,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:35,216 INFO L225 Difference]: With dead ends: 3202 [2022-03-03 18:40:35,216 INFO L226 Difference]: Without dead ends: 2893 [2022-03-03 18:40:35,216 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 [2022-03-03 18:40:35,216 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 [2022-03-03 18:40:35,216 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] [2022-03-03 18:40:35,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2022-03-03 18:40:35,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1444. [2022-03-03 18:40:35,245 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) [2022-03-03 18:40:35,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5753 transitions. [2022-03-03 18:40:35,248 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5753 transitions. Word has length 25 [2022-03-03 18:40:35,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:35,249 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5753 transitions. [2022-03-03 18:40:35,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:35,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5753 transitions. [2022-03-03 18:40:35,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:35,251 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:35,251 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] [2022-03-03 18:40:35,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-03-03 18:40:35,251 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:35,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:35,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1108663691, now seen corresponding path program 151 times [2022-03-03 18:40:35,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:35,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562558] [2022-03-03 18:40:35,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:35,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:35,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:35,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:35,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562558] [2022-03-03 18:40:35,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562558] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:35,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:35,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:35,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607452741] [2022-03-03 18:40:35,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:35,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:35,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:35,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:35,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:35,391 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) [2022-03-03 18:40:35,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:35,492 INFO L93 Difference]: Finished difference Result 3001 states and 11117 transitions. [2022-03-03 18:40:35,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:35,492 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:35,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:35,497 INFO L225 Difference]: With dead ends: 3001 [2022-03-03 18:40:35,497 INFO L226 Difference]: Without dead ends: 2842 [2022-03-03 18:40:35,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:35,498 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 [2022-03-03 18:40:35,498 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] [2022-03-03 18:40:35,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2022-03-03 18:40:35,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1492. [2022-03-03 18:40:35,521 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) [2022-03-03 18:40:35,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 5937 transitions. [2022-03-03 18:40:35,524 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 5937 transitions. Word has length 25 [2022-03-03 18:40:35,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:35,524 INFO L470 AbstractCegarLoop]: Abstraction has 1492 states and 5937 transitions. [2022-03-03 18:40:35,524 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) [2022-03-03 18:40:35,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 5937 transitions. [2022-03-03 18:40:35,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:35,527 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:35,527 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] [2022-03-03 18:40:35,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-03-03 18:40:35,527 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:35,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:35,527 INFO L85 PathProgramCache]: Analyzing trace with hash -2116961675, now seen corresponding path program 152 times [2022-03-03 18:40:35,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:35,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857007617] [2022-03-03 18:40:35,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:35,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:35,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:35,674 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:35,674 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857007617] [2022-03-03 18:40:35,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857007617] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:35,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:35,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:35,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020046883] [2022-03-03 18:40:35,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:35,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:35,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:35,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:35,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:35,675 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) [2022-03-03 18:40:35,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:35,780 INFO L93 Difference]: Finished difference Result 3064 states and 11324 transitions. [2022-03-03 18:40:35,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:35,780 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 [2022-03-03 18:40:35,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:35,787 INFO L225 Difference]: With dead ends: 3064 [2022-03-03 18:40:35,787 INFO L226 Difference]: Without dead ends: 2810 [2022-03-03 18:40:35,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:35,787 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 [2022-03-03 18:40:35,788 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] [2022-03-03 18:40:35,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2022-03-03 18:40:35,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 1460. [2022-03-03 18:40:35,813 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) [2022-03-03 18:40:35,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5809 transitions. [2022-03-03 18:40:35,816 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5809 transitions. Word has length 25 [2022-03-03 18:40:35,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:35,816 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5809 transitions. [2022-03-03 18:40:35,816 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) [2022-03-03 18:40:35,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5809 transitions. [2022-03-03 18:40:35,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:35,818 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:35,818 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] [2022-03-03 18:40:35,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-03-03 18:40:35,818 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:35,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:35,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1969882519, now seen corresponding path program 153 times [2022-03-03 18:40:35,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:35,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635338077] [2022-03-03 18:40:35,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:35,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:35,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:35,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:35,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635338077] [2022-03-03 18:40:35,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635338077] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:35,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:35,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:35,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317069216] [2022-03-03 18:40:35,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:35,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:35,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:35,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:35,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:35,981 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) [2022-03-03 18:40:36,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:36,111 INFO L93 Difference]: Finished difference Result 2906 states and 10766 transitions. [2022-03-03 18:40:36,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:36,111 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 [2022-03-03 18:40:36,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:36,119 INFO L225 Difference]: With dead ends: 2906 [2022-03-03 18:40:36,119 INFO L226 Difference]: Without dead ends: 2747 [2022-03-03 18:40:36,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:36,120 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 [2022-03-03 18:40:36,120 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] [2022-03-03 18:40:36,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2747 states. [2022-03-03 18:40:36,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2747 to 1476. [2022-03-03 18:40:36,152 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) [2022-03-03 18:40:36,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 5857 transitions. [2022-03-03 18:40:36,155 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 5857 transitions. Word has length 25 [2022-03-03 18:40:36,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:36,156 INFO L470 AbstractCegarLoop]: Abstraction has 1476 states and 5857 transitions. [2022-03-03 18:40:36,156 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) [2022-03-03 18:40:36,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 5857 transitions. [2022-03-03 18:40:36,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:36,158 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:36,158 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] [2022-03-03 18:40:36,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-03-03 18:40:36,158 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:36,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:36,158 INFO L85 PathProgramCache]: Analyzing trace with hash 27610519, now seen corresponding path program 154 times [2022-03-03 18:40:36,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:36,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342165525] [2022-03-03 18:40:36,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:36,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:36,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:36,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:36,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342165525] [2022-03-03 18:40:36,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342165525] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:36,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:36,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:36,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747650313] [2022-03-03 18:40:36,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:36,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:36,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:36,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:36,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:36,282 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) [2022-03-03 18:40:36,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:36,391 INFO L93 Difference]: Finished difference Result 2794 states and 10429 transitions. [2022-03-03 18:40:36,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:36,391 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 [2022-03-03 18:40:36,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:36,398 INFO L225 Difference]: With dead ends: 2794 [2022-03-03 18:40:36,398 INFO L226 Difference]: Without dead ends: 2603 [2022-03-03 18:40:36,398 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 [2022-03-03 18:40:36,398 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 [2022-03-03 18:40:36,398 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] [2022-03-03 18:40:36,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2022-03-03 18:40:36,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 1460. [2022-03-03 18:40:36,423 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) [2022-03-03 18:40:36,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5801 transitions. [2022-03-03 18:40:36,426 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5801 transitions. Word has length 25 [2022-03-03 18:40:36,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:36,426 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5801 transitions. [2022-03-03 18:40:36,427 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) [2022-03-03 18:40:36,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5801 transitions. [2022-03-03 18:40:36,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:36,430 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:36,430 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] [2022-03-03 18:40:36,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-03-03 18:40:36,430 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:36,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:36,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1715856791, now seen corresponding path program 155 times [2022-03-03 18:40:36,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:36,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349070760] [2022-03-03 18:40:36,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:36,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:36,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:36,562 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:36,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349070760] [2022-03-03 18:40:36,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349070760] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:36,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:36,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:36,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397896635] [2022-03-03 18:40:36,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:36,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:36,563 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:36,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:36,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:36,563 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) [2022-03-03 18:40:36,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:36,710 INFO L93 Difference]: Finished difference Result 3041 states and 11257 transitions. [2022-03-03 18:40:36,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:36,711 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 [2022-03-03 18:40:36,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:36,721 INFO L225 Difference]: With dead ends: 3041 [2022-03-03 18:40:36,721 INFO L226 Difference]: Without dead ends: 2866 [2022-03-03 18:40:36,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:36,721 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 [2022-03-03 18:40:36,721 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] [2022-03-03 18:40:36,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2022-03-03 18:40:36,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 1500. [2022-03-03 18:40:36,761 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) [2022-03-03 18:40:36,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5941 transitions. [2022-03-03 18:40:36,767 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5941 transitions. Word has length 25 [2022-03-03 18:40:36,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:36,767 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5941 transitions. [2022-03-03 18:40:36,767 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) [2022-03-03 18:40:36,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5941 transitions. [2022-03-03 18:40:36,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:36,770 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:36,770 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:36,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-03-03 18:40:36,770 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:36,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:36,771 INFO L85 PathProgramCache]: Analyzing trace with hash 60332405, now seen corresponding path program 156 times [2022-03-03 18:40:36,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:36,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900565656] [2022-03-03 18:40:36,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:36,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:36,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:36,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:36,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900565656] [2022-03-03 18:40:36,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900565656] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:36,928 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:36,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:36,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849263407] [2022-03-03 18:40:36,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:36,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:36,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:36,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:36,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:36,929 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) [2022-03-03 18:40:37,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:37,036 INFO L93 Difference]: Finished difference Result 2993 states and 11057 transitions. [2022-03-03 18:40:37,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:37,036 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 [2022-03-03 18:40:37,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:37,043 INFO L225 Difference]: With dead ends: 2993 [2022-03-03 18:40:37,043 INFO L226 Difference]: Without dead ends: 2715 [2022-03-03 18:40:37,043 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 [2022-03-03 18:40:37,043 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 [2022-03-03 18:40:37,043 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] [2022-03-03 18:40:37,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2022-03-03 18:40:37,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 1444. [2022-03-03 18:40:37,070 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) [2022-03-03 18:40:37,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5745 transitions. [2022-03-03 18:40:37,073 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5745 transitions. Word has length 25 [2022-03-03 18:40:37,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:37,073 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5745 transitions. [2022-03-03 18:40:37,073 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) [2022-03-03 18:40:37,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5745 transitions. [2022-03-03 18:40:37,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:37,075 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:37,075 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] [2022-03-03 18:40:37,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-03-03 18:40:37,075 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:37,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:37,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1918566737, now seen corresponding path program 157 times [2022-03-03 18:40:37,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:37,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903378317] [2022-03-03 18:40:37,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:37,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:37,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:37,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:37,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903378317] [2022-03-03 18:40:37,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903378317] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:37,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:37,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:37,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562530344] [2022-03-03 18:40:37,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:37,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:37,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:37,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:37,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:37,203 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) [2022-03-03 18:40:37,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:37,324 INFO L93 Difference]: Finished difference Result 2895 states and 10717 transitions. [2022-03-03 18:40:37,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:37,324 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:37,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:37,330 INFO L225 Difference]: With dead ends: 2895 [2022-03-03 18:40:37,331 INFO L226 Difference]: Without dead ends: 2736 [2022-03-03 18:40:37,331 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 [2022-03-03 18:40:37,331 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 [2022-03-03 18:40:37,331 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] [2022-03-03 18:40:37,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2022-03-03 18:40:37,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 1468. [2022-03-03 18:40:37,371 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) [2022-03-03 18:40:37,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5829 transitions. [2022-03-03 18:40:37,374 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5829 transitions. Word has length 25 [2022-03-03 18:40:37,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:37,374 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5829 transitions. [2022-03-03 18:40:37,374 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) [2022-03-03 18:40:37,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5829 transitions. [2022-03-03 18:40:37,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:37,377 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:37,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:37,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-03-03 18:40:37,377 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:37,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:37,377 INFO L85 PathProgramCache]: Analyzing trace with hash 328631987, now seen corresponding path program 158 times [2022-03-03 18:40:37,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:37,378 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741825898] [2022-03-03 18:40:37,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:37,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:37,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:37,496 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:37,496 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741825898] [2022-03-03 18:40:37,496 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741825898] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:37,496 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:37,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:37,497 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520095073] [2022-03-03 18:40:37,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:37,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:37,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:37,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:37,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:37,497 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) [2022-03-03 18:40:37,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:37,619 INFO L93 Difference]: Finished difference Result 2925 states and 10810 transitions. [2022-03-03 18:40:37,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:37,620 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 [2022-03-03 18:40:37,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:37,626 INFO L225 Difference]: With dead ends: 2925 [2022-03-03 18:40:37,626 INFO L226 Difference]: Without dead ends: 2720 [2022-03-03 18:40:37,626 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 [2022-03-03 18:40:37,627 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 101 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:37,627 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] [2022-03-03 18:40:37,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states. [2022-03-03 18:40:37,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 1452. [2022-03-03 18:40:37,652 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) [2022-03-03 18:40:37,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 5773 transitions. [2022-03-03 18:40:37,655 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 5773 transitions. Word has length 25 [2022-03-03 18:40:37,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:37,655 INFO L470 AbstractCegarLoop]: Abstraction has 1452 states and 5773 transitions. [2022-03-03 18:40:37,655 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) [2022-03-03 18:40:37,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 5773 transitions. [2022-03-03 18:40:37,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:37,658 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:37,658 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] [2022-03-03 18:40:37,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-03-03 18:40:37,658 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:37,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:37,658 INFO L85 PathProgramCache]: Analyzing trace with hash 423888179, now seen corresponding path program 159 times [2022-03-03 18:40:37,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:37,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822283495] [2022-03-03 18:40:37,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:37,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:37,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:37,790 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:37,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822283495] [2022-03-03 18:40:37,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822283495] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:37,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:37,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:37,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558945127] [2022-03-03 18:40:37,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:37,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:37,790 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:37,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:37,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:37,790 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) [2022-03-03 18:40:37,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:37,895 INFO L93 Difference]: Finished difference Result 2849 states and 10552 transitions. [2022-03-03 18:40:37,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:37,895 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 [2022-03-03 18:40:37,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:37,901 INFO L225 Difference]: With dead ends: 2849 [2022-03-03 18:40:37,901 INFO L226 Difference]: Without dead ends: 2690 [2022-03-03 18:40:37,901 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 [2022-03-03 18:40:37,902 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 114 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:37,902 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] [2022-03-03 18:40:37,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2022-03-03 18:40:37,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 1468. [2022-03-03 18:40:37,927 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) [2022-03-03 18:40:37,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5821 transitions. [2022-03-03 18:40:37,930 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5821 transitions. Word has length 25 [2022-03-03 18:40:37,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:37,930 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5821 transitions. [2022-03-03 18:40:37,930 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) [2022-03-03 18:40:37,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5821 transitions. [2022-03-03 18:40:37,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:37,932 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:37,932 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] [2022-03-03 18:40:37,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-03-03 18:40:37,932 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:37,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:37,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1518383821, now seen corresponding path program 160 times [2022-03-03 18:40:37,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:37,933 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426665454] [2022-03-03 18:40:37,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:37,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:38,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:38,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:38,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426665454] [2022-03-03 18:40:38,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426665454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:38,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:38,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:38,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023454304] [2022-03-03 18:40:38,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:38,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:38,059 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:38,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:38,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:38,059 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) [2022-03-03 18:40:38,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:38,194 INFO L93 Difference]: Finished difference Result 2737 states and 10215 transitions. [2022-03-03 18:40:38,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:38,194 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 [2022-03-03 18:40:38,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:38,200 INFO L225 Difference]: With dead ends: 2737 [2022-03-03 18:40:38,200 INFO L226 Difference]: Without dead ends: 2546 [2022-03-03 18:40:38,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:38,201 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 [2022-03-03 18:40:38,201 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] [2022-03-03 18:40:38,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2022-03-03 18:40:38,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 1452. [2022-03-03 18:40:38,224 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) [2022-03-03 18:40:38,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 5765 transitions. [2022-03-03 18:40:38,228 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 5765 transitions. Word has length 25 [2022-03-03 18:40:38,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:38,228 INFO L470 AbstractCegarLoop]: Abstraction has 1452 states and 5765 transitions. [2022-03-03 18:40:38,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:38,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 5765 transitions. [2022-03-03 18:40:38,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:38,230 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:38,230 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:38,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-03-03 18:40:38,230 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:38,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:38,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1841050133, now seen corresponding path program 161 times [2022-03-03 18:40:38,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:38,230 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723546924] [2022-03-03 18:40:38,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:38,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:38,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:38,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:38,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723546924] [2022-03-03 18:40:38,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723546924] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:38,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:38,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:38,362 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433150686] [2022-03-03 18:40:38,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:38,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:38,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:38,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:38,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:38,363 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) [2022-03-03 18:40:38,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:38,479 INFO L93 Difference]: Finished difference Result 2887 states and 10689 transitions. [2022-03-03 18:40:38,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:38,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:38,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:38,485 INFO L225 Difference]: With dead ends: 2887 [2022-03-03 18:40:38,485 INFO L226 Difference]: Without dead ends: 2698 [2022-03-03 18:40:38,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:38,486 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 109 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:38,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 153 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:38,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2022-03-03 18:40:38,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1476. [2022-03-03 18:40:38,510 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) [2022-03-03 18:40:38,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 5841 transitions. [2022-03-03 18:40:38,513 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 5841 transitions. Word has length 25 [2022-03-03 18:40:38,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:38,513 INFO L470 AbstractCegarLoop]: Abstraction has 1476 states and 5841 transitions. [2022-03-03 18:40:38,513 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) [2022-03-03 18:40:38,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 5841 transitions. [2022-03-03 18:40:38,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:38,516 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:38,516 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] [2022-03-03 18:40:38,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-03-03 18:40:38,516 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:38,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:38,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1100098035, now seen corresponding path program 162 times [2022-03-03 18:40:38,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:38,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412913138] [2022-03-03 18:40:38,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:38,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:38,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:38,637 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:38,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412913138] [2022-03-03 18:40:38,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412913138] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:38,637 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:38,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:38,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756384914] [2022-03-03 18:40:38,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:38,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:38,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:38,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:38,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:38,638 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) [2022-03-03 18:40:38,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:38,754 INFO L93 Difference]: Finished difference Result 2745 states and 10235 transitions. [2022-03-03 18:40:38,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:38,754 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 [2022-03-03 18:40:38,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:38,760 INFO L225 Difference]: With dead ends: 2745 [2022-03-03 18:40:38,760 INFO L226 Difference]: Without dead ends: 2538 [2022-03-03 18:40:38,760 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 [2022-03-03 18:40:38,760 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 95 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:38,760 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] [2022-03-03 18:40:38,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-03-03 18:40:38,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 1444. [2022-03-03 18:40:38,782 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) [2022-03-03 18:40:38,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5741 transitions. [2022-03-03 18:40:38,785 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5741 transitions. Word has length 25 [2022-03-03 18:40:38,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:38,785 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5741 transitions. [2022-03-03 18:40:38,785 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) [2022-03-03 18:40:38,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5741 transitions. [2022-03-03 18:40:38,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:38,788 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:38,788 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] [2022-03-03 18:40:38,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-03-03 18:40:38,788 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:38,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:38,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1548703881, now seen corresponding path program 163 times [2022-03-03 18:40:38,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:38,788 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043647041] [2022-03-03 18:40:38,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:38,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:38,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:38,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:38,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043647041] [2022-03-03 18:40:38,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043647041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:38,916 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:38,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:38,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333248476] [2022-03-03 18:40:38,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:38,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:38,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:38,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:38,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:38,917 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) [2022-03-03 18:40:39,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:39,043 INFO L93 Difference]: Finished difference Result 3119 states and 11567 transitions. [2022-03-03 18:40:39,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:39,043 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:39,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:39,050 INFO L225 Difference]: With dead ends: 3119 [2022-03-03 18:40:39,050 INFO L226 Difference]: Without dead ends: 2930 [2022-03-03 18:40:39,050 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 [2022-03-03 18:40:39,050 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 [2022-03-03 18:40:39,050 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] [2022-03-03 18:40:39,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2022-03-03 18:40:39,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1496. [2022-03-03 18:40:39,075 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) [2022-03-03 18:40:39,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 5937 transitions. [2022-03-03 18:40:39,079 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 5937 transitions. Word has length 25 [2022-03-03 18:40:39,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:39,079 INFO L470 AbstractCegarLoop]: Abstraction has 1496 states and 5937 transitions. [2022-03-03 18:40:39,079 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) [2022-03-03 18:40:39,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 5937 transitions. [2022-03-03 18:40:39,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:39,081 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:39,081 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] [2022-03-03 18:40:39,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-03-03 18:40:39,081 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:39,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:39,081 INFO L85 PathProgramCache]: Analyzing trace with hash 2005311317, now seen corresponding path program 164 times [2022-03-03 18:40:39,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:39,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001428399] [2022-03-03 18:40:39,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:39,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:39,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:39,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:39,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001428399] [2022-03-03 18:40:39,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001428399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:39,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:39,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:39,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658217867] [2022-03-03 18:40:39,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:39,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:39,206 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:39,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:39,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:39,206 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) [2022-03-03 18:40:39,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:39,346 INFO L93 Difference]: Finished difference Result 3105 states and 11498 transitions. [2022-03-03 18:40:39,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:39,347 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 [2022-03-03 18:40:39,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:39,353 INFO L225 Difference]: With dead ends: 3105 [2022-03-03 18:40:39,353 INFO L226 Difference]: Without dead ends: 2906 [2022-03-03 18:40:39,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:39,354 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 [2022-03-03 18:40:39,354 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] [2022-03-03 18:40:39,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2022-03-03 18:40:39,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 1472. [2022-03-03 18:40:39,380 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) [2022-03-03 18:40:39,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5849 transitions. [2022-03-03 18:40:39,384 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5849 transitions. Word has length 25 [2022-03-03 18:40:39,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:39,384 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5849 transitions. [2022-03-03 18:40:39,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:39,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5849 transitions. [2022-03-03 18:40:39,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:39,386 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:39,386 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] [2022-03-03 18:40:39,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-03-03 18:40:39,386 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:39,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:39,386 INFO L85 PathProgramCache]: Analyzing trace with hash 925227989, now seen corresponding path program 165 times [2022-03-03 18:40:39,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:39,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379380713] [2022-03-03 18:40:39,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:39,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:39,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:39,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:39,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379380713] [2022-03-03 18:40:39,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379380713] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:39,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:39,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:39,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102124569] [2022-03-03 18:40:39,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:39,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:39,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:39,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:39,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:39,505 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) [2022-03-03 18:40:39,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:39,625 INFO L93 Difference]: Finished difference Result 3142 states and 11614 transitions. [2022-03-03 18:40:39,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:39,625 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 [2022-03-03 18:40:39,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:39,631 INFO L225 Difference]: With dead ends: 3142 [2022-03-03 18:40:39,632 INFO L226 Difference]: Without dead ends: 2953 [2022-03-03 18:40:39,632 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 [2022-03-03 18:40:39,632 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:39,632 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] [2022-03-03 18:40:39,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2022-03-03 18:40:39,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 1535. [2022-03-03 18:40:39,657 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) [2022-03-03 18:40:39,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 6056 transitions. [2022-03-03 18:40:39,661 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 6056 transitions. Word has length 25 [2022-03-03 18:40:39,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:39,661 INFO L470 AbstractCegarLoop]: Abstraction has 1535 states and 6056 transitions. [2022-03-03 18:40:39,661 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) [2022-03-03 18:40:39,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 6056 transitions. [2022-03-03 18:40:39,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:39,663 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:39,663 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] [2022-03-03 18:40:39,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-03-03 18:40:39,663 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:39,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:39,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1349786411, now seen corresponding path program 166 times [2022-03-03 18:40:39,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:39,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120300509] [2022-03-03 18:40:39,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:39,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:39,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:39,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:39,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120300509] [2022-03-03 18:40:39,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120300509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:39,788 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:39,788 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:39,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411326535] [2022-03-03 18:40:39,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:39,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:39,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:39,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:39,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:39,789 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) [2022-03-03 18:40:39,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:39,918 INFO L93 Difference]: Finished difference Result 3175 states and 11697 transitions. [2022-03-03 18:40:39,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:39,919 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:39,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:39,925 INFO L225 Difference]: With dead ends: 3175 [2022-03-03 18:40:39,925 INFO L226 Difference]: Without dead ends: 2890 [2022-03-03 18:40:39,925 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 [2022-03-03 18:40:39,926 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 [2022-03-03 18:40:39,926 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] [2022-03-03 18:40:39,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2022-03-03 18:40:39,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 1472. [2022-03-03 18:40:39,950 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) [2022-03-03 18:40:39,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5821 transitions. [2022-03-03 18:40:39,954 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5821 transitions. Word has length 25 [2022-03-03 18:40:39,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:39,954 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5821 transitions. [2022-03-03 18:40:39,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:39,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5821 transitions. [2022-03-03 18:40:39,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:39,956 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:39,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:39,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-03-03 18:40:39,956 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:39,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:39,956 INFO L85 PathProgramCache]: Analyzing trace with hash 671395123, now seen corresponding path program 167 times [2022-03-03 18:40:39,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:39,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931586356] [2022-03-03 18:40:39,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:39,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:40,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:40,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:40,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931586356] [2022-03-03 18:40:40,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931586356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:40,104 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:40,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:40,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200337634] [2022-03-03 18:40:40,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:40,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:40,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:40,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:40,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:40,105 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) [2022-03-03 18:40:40,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:40,239 INFO L93 Difference]: Finished difference Result 3091 states and 11422 transitions. [2022-03-03 18:40:40,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:40,239 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:40,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:40,246 INFO L225 Difference]: With dead ends: 3091 [2022-03-03 18:40:40,246 INFO L226 Difference]: Without dead ends: 2916 [2022-03-03 18:40:40,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:40,246 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 [2022-03-03 18:40:40,246 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] [2022-03-03 18:40:40,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2022-03-03 18:40:40,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 1512. [2022-03-03 18:40:40,272 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) [2022-03-03 18:40:40,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 5961 transitions. [2022-03-03 18:40:40,276 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 5961 transitions. Word has length 25 [2022-03-03 18:40:40,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:40,276 INFO L470 AbstractCegarLoop]: Abstraction has 1512 states and 5961 transitions. [2022-03-03 18:40:40,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:40,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 5961 transitions. [2022-03-03 18:40:40,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:40,278 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:40,278 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] [2022-03-03 18:40:40,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-03-03 18:40:40,278 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:40,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:40,278 INFO L85 PathProgramCache]: Analyzing trace with hash 889746709, now seen corresponding path program 168 times [2022-03-03 18:40:40,278 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:40,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456852554] [2022-03-03 18:40:40,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:40,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:40,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:40,405 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:40,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456852554] [2022-03-03 18:40:40,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456852554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:40,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:40,405 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:40,405 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338229788] [2022-03-03 18:40:40,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:40,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:40,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:40,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:40,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:40,405 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) [2022-03-03 18:40:40,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:40,518 INFO L93 Difference]: Finished difference Result 3043 states and 11222 transitions. [2022-03-03 18:40:40,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:40,518 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 [2022-03-03 18:40:40,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:40,525 INFO L225 Difference]: With dead ends: 3043 [2022-03-03 18:40:40,525 INFO L226 Difference]: Without dead ends: 2741 [2022-03-03 18:40:40,525 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 [2022-03-03 18:40:40,525 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 100 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:40,525 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] [2022-03-03 18:40:40,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-03-03 18:40:40,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1432. [2022-03-03 18:40:40,551 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) [2022-03-03 18:40:40,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5703 transitions. [2022-03-03 18:40:40,554 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5703 transitions. Word has length 25 [2022-03-03 18:40:40,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:40,555 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5703 transitions. [2022-03-03 18:40:40,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:40,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5703 transitions. [2022-03-03 18:40:40,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:40,557 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:40,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:40,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-03-03 18:40:40,557 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:40,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:40,557 INFO L85 PathProgramCache]: Analyzing trace with hash 334087797, now seen corresponding path program 169 times [2022-03-03 18:40:40,557 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:40,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716330645] [2022-03-03 18:40:40,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:40,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:40,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:40,696 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:40,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716330645] [2022-03-03 18:40:40,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716330645] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:40,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:40,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:40,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774214300] [2022-03-03 18:40:40,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:40,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:40,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:40,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:40,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:40,697 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) [2022-03-03 18:40:40,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:40,806 INFO L93 Difference]: Finished difference Result 3020 states and 11214 transitions. [2022-03-03 18:40:40,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:40,806 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:40,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:40,813 INFO L225 Difference]: With dead ends: 3020 [2022-03-03 18:40:40,813 INFO L226 Difference]: Without dead ends: 2861 [2022-03-03 18:40:40,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:40,813 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 [2022-03-03 18:40:40,813 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] [2022-03-03 18:40:40,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states. [2022-03-03 18:40:40,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 1488. [2022-03-03 18:40:40,840 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) [2022-03-03 18:40:40,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 5927 transitions. [2022-03-03 18:40:40,843 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 5927 transitions. Word has length 25 [2022-03-03 18:40:40,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:40,843 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 5927 transitions. [2022-03-03 18:40:40,843 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) [2022-03-03 18:40:40,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 5927 transitions. [2022-03-03 18:40:40,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:40,845 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:40,846 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] [2022-03-03 18:40:40,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-03-03 18:40:40,846 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:40,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:40,846 INFO L85 PathProgramCache]: Analyzing trace with hash -674210187, now seen corresponding path program 170 times [2022-03-03 18:40:40,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:40,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222342273] [2022-03-03 18:40:40,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:40,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:40,968 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:40,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222342273] [2022-03-03 18:40:40,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222342273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:40,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:40,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:40,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422247115] [2022-03-03 18:40:40,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:40,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:40,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:40,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:40,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:40,969 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) [2022-03-03 18:40:41,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:41,082 INFO L93 Difference]: Finished difference Result 3083 states and 11421 transitions. [2022-03-03 18:40:41,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:41,083 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:41,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:41,090 INFO L225 Difference]: With dead ends: 3083 [2022-03-03 18:40:41,090 INFO L226 Difference]: Without dead ends: 2829 [2022-03-03 18:40:41,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:41,090 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 112 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:41,090 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] [2022-03-03 18:40:41,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2022-03-03 18:40:41,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 1456. [2022-03-03 18:40:41,130 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) [2022-03-03 18:40:41,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5799 transitions. [2022-03-03 18:40:41,134 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5799 transitions. Word has length 25 [2022-03-03 18:40:41,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:41,134 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5799 transitions. [2022-03-03 18:40:41,134 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) [2022-03-03 18:40:41,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5799 transitions. [2022-03-03 18:40:41,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:41,136 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:41,136 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] [2022-03-03 18:40:41,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-03-03 18:40:41,136 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:41,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:41,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1323121303, now seen corresponding path program 171 times [2022-03-03 18:40:41,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:41,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013340872] [2022-03-03 18:40:41,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:41,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:41,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:41,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:41,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013340872] [2022-03-03 18:40:41,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013340872] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:41,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:41,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:41,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711662295] [2022-03-03 18:40:41,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:41,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:41,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:41,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:41,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:41,270 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) [2022-03-03 18:40:41,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:41,381 INFO L93 Difference]: Finished difference Result 2969 states and 11015 transitions. [2022-03-03 18:40:41,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:41,382 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 [2022-03-03 18:40:41,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:41,388 INFO L225 Difference]: With dead ends: 2969 [2022-03-03 18:40:41,388 INFO L226 Difference]: Without dead ends: 2810 [2022-03-03 18:40:41,388 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 [2022-03-03 18:40:41,388 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 [2022-03-03 18:40:41,388 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] [2022-03-03 18:40:41,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2022-03-03 18:40:41,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 1472. [2022-03-03 18:40:41,413 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) [2022-03-03 18:40:41,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5847 transitions. [2022-03-03 18:40:41,417 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5847 transitions. Word has length 25 [2022-03-03 18:40:41,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:41,417 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5847 transitions. [2022-03-03 18:40:41,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:41,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5847 transitions. [2022-03-03 18:40:41,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:41,419 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:41,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:41,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-03-03 18:40:41,419 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:41,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:41,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1963548009, now seen corresponding path program 172 times [2022-03-03 18:40:41,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:41,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495185567] [2022-03-03 18:40:41,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:41,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:41,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:41,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:41,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495185567] [2022-03-03 18:40:41,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495185567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:41,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:41,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:41,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537303688] [2022-03-03 18:40:41,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:41,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:41,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:41,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:41,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:41,538 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) [2022-03-03 18:40:41,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:41,652 INFO L93 Difference]: Finished difference Result 2997 states and 11103 transitions. [2022-03-03 18:40:41,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:41,653 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 [2022-03-03 18:40:41,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:41,660 INFO L225 Difference]: With dead ends: 2997 [2022-03-03 18:40:41,660 INFO L226 Difference]: Without dead ends: 2794 [2022-03-03 18:40:41,660 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 [2022-03-03 18:40:41,660 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:41,660 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] [2022-03-03 18:40:41,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2794 states. [2022-03-03 18:40:41,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2794 to 1456. [2022-03-03 18:40:41,686 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) [2022-03-03 18:40:41,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5791 transitions. [2022-03-03 18:40:41,689 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5791 transitions. Word has length 25 [2022-03-03 18:40:41,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:41,689 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5791 transitions. [2022-03-03 18:40:41,689 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) [2022-03-03 18:40:41,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5791 transitions. [2022-03-03 18:40:41,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:41,691 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:41,691 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:41,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-03-03 18:40:41,691 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:41,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:41,692 INFO L85 PathProgramCache]: Analyzing trace with hash -275301737, now seen corresponding path program 173 times [2022-03-03 18:40:41,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:41,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229737320] [2022-03-03 18:40:41,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:41,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:41,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:41,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:41,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:41,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229737320] [2022-03-03 18:40:41,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229737320] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:41,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:41,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:41,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318747561] [2022-03-03 18:40:41,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:41,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:41,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:41,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:41,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:41,811 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) [2022-03-03 18:40:41,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:41,930 INFO L93 Difference]: Finished difference Result 3090 states and 11457 transitions. [2022-03-03 18:40:41,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:41,930 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:41,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:41,937 INFO L225 Difference]: With dead ends: 3090 [2022-03-03 18:40:41,937 INFO L226 Difference]: Without dead ends: 2903 [2022-03-03 18:40:41,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:41,937 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 98 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:41,938 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] [2022-03-03 18:40:41,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2022-03-03 18:40:41,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 1502. [2022-03-03 18:40:41,966 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) [2022-03-03 18:40:41,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 5948 transitions. [2022-03-03 18:40:41,969 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 5948 transitions. Word has length 25 [2022-03-03 18:40:41,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:41,969 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 5948 transitions. [2022-03-03 18:40:41,969 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) [2022-03-03 18:40:41,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 5948 transitions. [2022-03-03 18:40:41,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:41,972 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:41,972 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:41,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-03-03 18:40:41,972 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:41,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:41,972 INFO L85 PathProgramCache]: Analyzing trace with hash -628441227, now seen corresponding path program 174 times [2022-03-03 18:40:41,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:41,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434696568] [2022-03-03 18:40:41,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:41,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:42,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:42,096 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:42,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434696568] [2022-03-03 18:40:42,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434696568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:42,097 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:42,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:42,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166593510] [2022-03-03 18:40:42,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:42,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:42,097 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:42,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:42,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:42,097 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) [2022-03-03 18:40:42,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:42,199 INFO L93 Difference]: Finished difference Result 3125 states and 11546 transitions. [2022-03-03 18:40:42,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:42,199 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 [2022-03-03 18:40:42,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:42,206 INFO L225 Difference]: With dead ends: 3125 [2022-03-03 18:40:42,206 INFO L226 Difference]: Without dead ends: 2841 [2022-03-03 18:40:42,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:42,206 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 116 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:42,207 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] [2022-03-03 18:40:42,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2022-03-03 18:40:42,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 1440. [2022-03-03 18:40:42,241 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) [2022-03-03 18:40:42,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5735 transitions. [2022-03-03 18:40:42,245 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5735 transitions. Word has length 25 [2022-03-03 18:40:42,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:42,245 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5735 transitions. [2022-03-03 18:40:42,245 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) [2022-03-03 18:40:42,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5735 transitions. [2022-03-03 18:40:42,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:42,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:42,248 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] [2022-03-03 18:40:42,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-03-03 18:40:42,248 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:42,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:42,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1735205335, now seen corresponding path program 175 times [2022-03-03 18:40:42,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:42,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107257041] [2022-03-03 18:40:42,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:42,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:42,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:42,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:42,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107257041] [2022-03-03 18:40:42,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107257041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:42,369 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:42,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:42,370 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120531954] [2022-03-03 18:40:42,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:42,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:42,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:42,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:42,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:42,370 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) [2022-03-03 18:40:42,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:42,473 INFO L93 Difference]: Finished difference Result 2970 states and 11015 transitions. [2022-03-03 18:40:42,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:42,473 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 [2022-03-03 18:40:42,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:42,480 INFO L225 Difference]: With dead ends: 2970 [2022-03-03 18:40:42,480 INFO L226 Difference]: Without dead ends: 2811 [2022-03-03 18:40:42,480 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 [2022-03-03 18:40:42,480 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 115 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:42,480 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] [2022-03-03 18:40:42,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2811 states. [2022-03-03 18:40:42,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2811 to 1488. [2022-03-03 18:40:42,507 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) [2022-03-03 18:40:42,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 5919 transitions. [2022-03-03 18:40:42,511 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 5919 transitions. Word has length 25 [2022-03-03 18:40:42,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:42,511 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 5919 transitions. [2022-03-03 18:40:42,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:42,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 5919 transitions. [2022-03-03 18:40:42,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:42,513 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:42,513 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] [2022-03-03 18:40:42,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-03-03 18:40:42,513 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:42,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:42,513 INFO L85 PathProgramCache]: Analyzing trace with hash 726907351, now seen corresponding path program 176 times [2022-03-03 18:40:42,514 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:42,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123986537] [2022-03-03 18:40:42,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:42,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:42,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:42,635 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:42,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123986537] [2022-03-03 18:40:42,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123986537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:42,636 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:42,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:42,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263963327] [2022-03-03 18:40:42,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:42,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:42,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:42,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:42,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:42,636 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) [2022-03-03 18:40:42,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:42,741 INFO L93 Difference]: Finished difference Result 3033 states and 11222 transitions. [2022-03-03 18:40:42,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:42,742 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 [2022-03-03 18:40:42,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:42,748 INFO L225 Difference]: With dead ends: 3033 [2022-03-03 18:40:42,748 INFO L226 Difference]: Without dead ends: 2779 [2022-03-03 18:40:42,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:42,748 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:42,749 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] [2022-03-03 18:40:42,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2022-03-03 18:40:42,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 1456. [2022-03-03 18:40:42,773 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) [2022-03-03 18:40:42,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5791 transitions. [2022-03-03 18:40:42,776 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5791 transitions. Word has length 25 [2022-03-03 18:40:42,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:42,776 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5791 transitions. [2022-03-03 18:40:42,776 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) [2022-03-03 18:40:42,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5791 transitions. [2022-03-03 18:40:42,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:42,779 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:42,779 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] [2022-03-03 18:40:42,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-03-03 18:40:42,779 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:42,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:42,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1519203945, now seen corresponding path program 177 times [2022-03-03 18:40:42,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:42,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753898762] [2022-03-03 18:40:42,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:42,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:42,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:42,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:42,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753898762] [2022-03-03 18:40:42,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753898762] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:42,910 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:42,910 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:42,910 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851820773] [2022-03-03 18:40:42,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:42,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:42,910 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:42,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:42,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:42,911 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) [2022-03-03 18:40:43,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:43,019 INFO L93 Difference]: Finished difference Result 2875 states and 10664 transitions. [2022-03-03 18:40:43,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:43,019 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 [2022-03-03 18:40:43,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:43,025 INFO L225 Difference]: With dead ends: 2875 [2022-03-03 18:40:43,025 INFO L226 Difference]: Without dead ends: 2716 [2022-03-03 18:40:43,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:43,026 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 [2022-03-03 18:40:43,026 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] [2022-03-03 18:40:43,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2022-03-03 18:40:43,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 1472. [2022-03-03 18:40:43,051 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) [2022-03-03 18:40:43,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5839 transitions. [2022-03-03 18:40:43,054 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5839 transitions. Word has length 25 [2022-03-03 18:40:43,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:43,054 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5839 transitions. [2022-03-03 18:40:43,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:43,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5839 transitions. [2022-03-03 18:40:43,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:43,057 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:43,057 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] [2022-03-03 18:40:43,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-03-03 18:40:43,057 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:43,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:43,057 INFO L85 PathProgramCache]: Analyzing trace with hash 833491351, now seen corresponding path program 178 times [2022-03-03 18:40:43,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:43,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83142925] [2022-03-03 18:40:43,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:43,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:43,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:43,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:43,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83142925] [2022-03-03 18:40:43,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83142925] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:43,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:43,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:43,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785393210] [2022-03-03 18:40:43,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:43,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:43,176 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:43,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:43,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:43,176 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) [2022-03-03 18:40:43,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:43,287 INFO L93 Difference]: Finished difference Result 2763 states and 10327 transitions. [2022-03-03 18:40:43,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:43,288 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 [2022-03-03 18:40:43,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:43,294 INFO L225 Difference]: With dead ends: 2763 [2022-03-03 18:40:43,294 INFO L226 Difference]: Without dead ends: 2572 [2022-03-03 18:40:43,294 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 [2022-03-03 18:40:43,294 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 93 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:43,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 144 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:43,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2022-03-03 18:40:43,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 1456. [2022-03-03 18:40:43,328 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) [2022-03-03 18:40:43,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5783 transitions. [2022-03-03 18:40:43,333 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5783 transitions. Word has length 25 [2022-03-03 18:40:43,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:43,333 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5783 transitions. [2022-03-03 18:40:43,333 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) [2022-03-03 18:40:43,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5783 transitions. [2022-03-03 18:40:43,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:43,337 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:43,337 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] [2022-03-03 18:40:43,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-03-03 18:40:43,337 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:43,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:43,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1773229673, now seen corresponding path program 179 times [2022-03-03 18:40:43,337 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:43,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886655725] [2022-03-03 18:40:43,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:43,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:43,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:43,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:43,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886655725] [2022-03-03 18:40:43,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886655725] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:43,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:43,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:43,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513958262] [2022-03-03 18:40:43,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:43,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:43,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:43,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:43,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:43,476 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) [2022-03-03 18:40:43,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:43,619 INFO L93 Difference]: Finished difference Result 3010 states and 11155 transitions. [2022-03-03 18:40:43,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:43,619 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:43,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:43,628 INFO L225 Difference]: With dead ends: 3010 [2022-03-03 18:40:43,628 INFO L226 Difference]: Without dead ends: 2835 [2022-03-03 18:40:43,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:43,628 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:43,628 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] [2022-03-03 18:40:43,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2835 states. [2022-03-03 18:40:43,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2835 to 1496. [2022-03-03 18:40:43,665 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) [2022-03-03 18:40:43,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 5923 transitions. [2022-03-03 18:40:43,670 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 5923 transitions. Word has length 25 [2022-03-03 18:40:43,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:43,670 INFO L470 AbstractCegarLoop]: Abstraction has 1496 states and 5923 transitions. [2022-03-03 18:40:43,671 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) [2022-03-03 18:40:43,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 5923 transitions. [2022-03-03 18:40:43,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:43,674 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:43,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:43,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-03-03 18:40:43,674 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:43,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:43,674 INFO L85 PathProgramCache]: Analyzing trace with hash 866213237, now seen corresponding path program 180 times [2022-03-03 18:40:43,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:43,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868841880] [2022-03-03 18:40:43,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:43,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:43,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:43,809 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:43,809 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868841880] [2022-03-03 18:40:43,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868841880] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:43,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:43,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:43,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504597836] [2022-03-03 18:40:43,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:43,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:43,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:43,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:43,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:43,810 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) [2022-03-03 18:40:43,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:43,919 INFO L93 Difference]: Finished difference Result 2962 states and 10955 transitions. [2022-03-03 18:40:43,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:43,919 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:43,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:43,925 INFO L225 Difference]: With dead ends: 2962 [2022-03-03 18:40:43,925 INFO L226 Difference]: Without dead ends: 2684 [2022-03-03 18:40:43,926 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 [2022-03-03 18:40:43,926 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 [2022-03-03 18:40:43,926 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] [2022-03-03 18:40:43,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2022-03-03 18:40:43,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 1440. [2022-03-03 18:40:43,950 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) [2022-03-03 18:40:43,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5727 transitions. [2022-03-03 18:40:43,953 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5727 transitions. Word has length 25 [2022-03-03 18:40:43,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:43,953 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5727 transitions. [2022-03-03 18:40:43,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:43,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5727 transitions. [2022-03-03 18:40:43,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:43,955 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:43,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:43,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-03-03 18:40:43,956 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:43,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:43,956 INFO L85 PathProgramCache]: Analyzing trace with hash 573562169, now seen corresponding path program 181 times [2022-03-03 18:40:43,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:43,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446849131] [2022-03-03 18:40:43,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:43,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:44,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:44,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:44,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446849131] [2022-03-03 18:40:44,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446849131] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:44,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:44,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:44,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406403178] [2022-03-03 18:40:44,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:44,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:44,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:44,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:44,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:44,076 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) [2022-03-03 18:40:44,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:44,172 INFO L93 Difference]: Finished difference Result 2860 states and 10605 transitions. [2022-03-03 18:40:44,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:44,173 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:44,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:44,179 INFO L225 Difference]: With dead ends: 2860 [2022-03-03 18:40:44,179 INFO L226 Difference]: Without dead ends: 2701 [2022-03-03 18:40:44,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:44,180 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 122 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:44,180 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] [2022-03-03 18:40:44,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2022-03-03 18:40:44,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 1464. [2022-03-03 18:40:44,208 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) [2022-03-03 18:40:44,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5811 transitions. [2022-03-03 18:40:44,211 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5811 transitions. Word has length 25 [2022-03-03 18:40:44,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:44,212 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5811 transitions. [2022-03-03 18:40:44,212 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) [2022-03-03 18:40:44,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5811 transitions. [2022-03-03 18:40:44,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:44,214 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:44,214 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] [2022-03-03 18:40:44,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-03-03 18:40:44,214 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:44,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:44,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1581860153, now seen corresponding path program 182 times [2022-03-03 18:40:44,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:44,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302145085] [2022-03-03 18:40:44,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:44,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:44,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:44,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:44,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302145085] [2022-03-03 18:40:44,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302145085] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:44,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:44,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:44,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887772820] [2022-03-03 18:40:44,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:44,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:44,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:44,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:44,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:44,334 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) [2022-03-03 18:40:44,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:44,465 INFO L93 Difference]: Finished difference Result 2888 states and 10693 transitions. [2022-03-03 18:40:44,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:44,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:44,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:44,472 INFO L225 Difference]: With dead ends: 2888 [2022-03-03 18:40:44,472 INFO L226 Difference]: Without dead ends: 2685 [2022-03-03 18:40:44,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:44,473 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 [2022-03-03 18:40:44,473 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] [2022-03-03 18:40:44,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2022-03-03 18:40:44,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 1448. [2022-03-03 18:40:44,508 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) [2022-03-03 18:40:44,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5755 transitions. [2022-03-03 18:40:44,513 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5755 transitions. Word has length 25 [2022-03-03 18:40:44,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:44,514 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5755 transitions. [2022-03-03 18:40:44,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:44,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5755 transitions. [2022-03-03 18:40:44,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:44,517 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:44,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:44,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-03-03 18:40:44,517 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:44,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:44,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1542517481, now seen corresponding path program 183 times [2022-03-03 18:40:44,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:44,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650401263] [2022-03-03 18:40:44,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:44,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:44,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:44,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:44,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650401263] [2022-03-03 18:40:44,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650401263] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:44,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:44,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:44,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132241477] [2022-03-03 18:40:44,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:44,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:44,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:44,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:44,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:44,660 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) [2022-03-03 18:40:44,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:44,758 INFO L93 Difference]: Finished difference Result 2816 states and 10445 transitions. [2022-03-03 18:40:44,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:44,758 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 [2022-03-03 18:40:44,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:44,765 INFO L225 Difference]: With dead ends: 2816 [2022-03-03 18:40:44,765 INFO L226 Difference]: Without dead ends: 2657 [2022-03-03 18:40:44,765 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 [2022-03-03 18:40:44,765 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 126 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:44,765 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] [2022-03-03 18:40:44,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2657 states. [2022-03-03 18:40:44,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2657 to 1464. [2022-03-03 18:40:44,791 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) [2022-03-03 18:40:44,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5803 transitions. [2022-03-03 18:40:44,794 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5803 transitions. Word has length 25 [2022-03-03 18:40:44,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:44,795 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5803 transitions. [2022-03-03 18:40:44,795 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) [2022-03-03 18:40:44,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5803 transitions. [2022-03-03 18:40:44,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:44,806 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:44,807 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] [2022-03-03 18:40:44,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-03-03 18:40:44,807 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:44,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:44,807 INFO L85 PathProgramCache]: Analyzing trace with hash 2106918201, now seen corresponding path program 184 times [2022-03-03 18:40:44,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:44,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986245022] [2022-03-03 18:40:44,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:44,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:44,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:44,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:44,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986245022] [2022-03-03 18:40:44,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986245022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:44,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:44,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:44,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939616149] [2022-03-03 18:40:44,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:44,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:44,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:44,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:44,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:44,929 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) [2022-03-03 18:40:45,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:45,040 INFO L93 Difference]: Finished difference Result 2704 states and 10108 transitions. [2022-03-03 18:40:45,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:45,040 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 [2022-03-03 18:40:45,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:45,046 INFO L225 Difference]: With dead ends: 2704 [2022-03-03 18:40:45,046 INFO L226 Difference]: Without dead ends: 2513 [2022-03-03 18:40:45,046 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 [2022-03-03 18:40:45,047 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 [2022-03-03 18:40:45,047 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] [2022-03-03 18:40:45,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2022-03-03 18:40:45,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 1448. [2022-03-03 18:40:45,071 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) [2022-03-03 18:40:45,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5747 transitions. [2022-03-03 18:40:45,074 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5747 transitions. Word has length 25 [2022-03-03 18:40:45,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:45,074 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5747 transitions. [2022-03-03 18:40:45,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:45,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5747 transitions. [2022-03-03 18:40:45,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:45,077 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:45,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:45,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-03-03 18:40:45,077 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:45,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:45,077 INFO L85 PathProgramCache]: Analyzing trace with hash -925725383, now seen corresponding path program 185 times [2022-03-03 18:40:45,077 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:45,077 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059659241] [2022-03-03 18:40:45,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:45,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:45,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:45,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:45,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059659241] [2022-03-03 18:40:45,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059659241] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:45,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:45,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:45,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214015868] [2022-03-03 18:40:45,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:45,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:45,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:45,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:45,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:45,195 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) [2022-03-03 18:40:45,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:45,308 INFO L93 Difference]: Finished difference Result 2852 states and 10577 transitions. [2022-03-03 18:40:45,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:45,308 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 [2022-03-03 18:40:45,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:45,314 INFO L225 Difference]: With dead ends: 2852 [2022-03-03 18:40:45,315 INFO L226 Difference]: Without dead ends: 2665 [2022-03-03 18:40:45,315 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 [2022-03-03 18:40:45,315 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 [2022-03-03 18:40:45,315 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] [2022-03-03 18:40:45,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2022-03-03 18:40:45,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 1472. [2022-03-03 18:40:45,339 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) [2022-03-03 18:40:45,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5823 transitions. [2022-03-03 18:40:45,342 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5823 transitions. Word has length 25 [2022-03-03 18:40:45,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:45,343 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5823 transitions. [2022-03-03 18:40:45,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:45,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5823 transitions. [2022-03-03 18:40:45,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:45,345 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:45,345 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] [2022-03-03 18:40:45,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-03-03 18:40:45,345 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:45,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:45,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1977097367, now seen corresponding path program 186 times [2022-03-03 18:40:45,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:45,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886163149] [2022-03-03 18:40:45,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:45,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:45,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:45,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:45,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886163149] [2022-03-03 18:40:45,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886163149] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:45,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:45,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:45,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714703212] [2022-03-03 18:40:45,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:45,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:45,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:45,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:45,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:45,462 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) [2022-03-03 18:40:45,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:45,595 INFO L93 Difference]: Finished difference Result 2712 states and 10128 transitions. [2022-03-03 18:40:45,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:45,596 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:45,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:45,601 INFO L225 Difference]: With dead ends: 2712 [2022-03-03 18:40:45,602 INFO L226 Difference]: Without dead ends: 2505 [2022-03-03 18:40:45,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:45,602 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 [2022-03-03 18:40:45,602 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] [2022-03-03 18:40:45,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2022-03-03 18:40:45,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 1440. [2022-03-03 18:40:45,624 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) [2022-03-03 18:40:45,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5723 transitions. [2022-03-03 18:40:45,628 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5723 transitions. Word has length 25 [2022-03-03 18:40:45,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:45,628 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5723 transitions. [2022-03-03 18:40:45,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:45,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5723 transitions. [2022-03-03 18:40:45,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:45,630 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:45,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:45,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-03-03 18:40:45,631 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:45,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:45,631 INFO L85 PathProgramCache]: Analyzing trace with hash -2018695879, now seen corresponding path program 187 times [2022-03-03 18:40:45,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:45,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560035671] [2022-03-03 18:40:45,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:45,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:45,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:45,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:45,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560035671] [2022-03-03 18:40:45,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560035671] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:45,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:45,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:45,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779494] [2022-03-03 18:40:45,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:45,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:45,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:45,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:45,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:45,753 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) [2022-03-03 18:40:45,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:45,865 INFO L93 Difference]: Finished difference Result 3057 states and 11371 transitions. [2022-03-03 18:40:45,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:45,865 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:45,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:45,872 INFO L225 Difference]: With dead ends: 3057 [2022-03-03 18:40:45,873 INFO L226 Difference]: Without dead ends: 2870 [2022-03-03 18:40:45,873 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 [2022-03-03 18:40:45,873 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 106 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:45,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 143 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:45,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2022-03-03 18:40:45,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 1484. [2022-03-03 18:40:45,900 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) [2022-03-03 18:40:45,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 5891 transitions. [2022-03-03 18:40:45,903 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 5891 transitions. Word has length 25 [2022-03-03 18:40:45,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:45,904 INFO L470 AbstractCegarLoop]: Abstraction has 1484 states and 5891 transitions. [2022-03-03 18:40:45,904 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) [2022-03-03 18:40:45,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 5891 transitions. [2022-03-03 18:40:45,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:45,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:45,907 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] [2022-03-03 18:40:45,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-03-03 18:40:45,907 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:45,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:45,907 INFO L85 PathProgramCache]: Analyzing trace with hash 884126871, now seen corresponding path program 188 times [2022-03-03 18:40:45,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:45,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964277499] [2022-03-03 18:40:45,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:45,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:46,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:46,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:46,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964277499] [2022-03-03 18:40:46,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964277499] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:46,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:46,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:46,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90895687] [2022-03-03 18:40:46,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:46,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:46,025 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:46,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:46,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:46,026 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) [2022-03-03 18:40:46,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:46,151 INFO L93 Difference]: Finished difference Result 3045 states and 11307 transitions. [2022-03-03 18:40:46,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:46,151 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:46,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:46,158 INFO L225 Difference]: With dead ends: 3045 [2022-03-03 18:40:46,158 INFO L226 Difference]: Without dead ends: 2846 [2022-03-03 18:40:46,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:46,158 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 [2022-03-03 18:40:46,158 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] [2022-03-03 18:40:46,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2022-03-03 18:40:46,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 1460. [2022-03-03 18:40:46,184 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) [2022-03-03 18:40:46,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5803 transitions. [2022-03-03 18:40:46,187 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5803 transitions. Word has length 25 [2022-03-03 18:40:46,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:46,187 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5803 transitions. [2022-03-03 18:40:46,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:46,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5803 transitions. [2022-03-03 18:40:46,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:46,190 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:46,190 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] [2022-03-03 18:40:46,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-03-03 18:40:46,190 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:46,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:46,190 INFO L85 PathProgramCache]: Analyzing trace with hash 455235991, now seen corresponding path program 189 times [2022-03-03 18:40:46,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:46,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119024373] [2022-03-03 18:40:46,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:46,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:46,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:46,310 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:46,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119024373] [2022-03-03 18:40:46,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119024373] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:46,310 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:46,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:46,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776547017] [2022-03-03 18:40:46,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:46,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:46,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:46,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:46,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:46,310 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) [2022-03-03 18:40:46,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:46,432 INFO L93 Difference]: Finished difference Result 3080 states and 11418 transitions. [2022-03-03 18:40:46,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:46,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:46,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:46,438 INFO L225 Difference]: With dead ends: 3080 [2022-03-03 18:40:46,439 INFO L226 Difference]: Without dead ends: 2893 [2022-03-03 18:40:46,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:46,439 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 98 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:46,439 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] [2022-03-03 18:40:46,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2022-03-03 18:40:46,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1506. [2022-03-03 18:40:46,465 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) [2022-03-03 18:40:46,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 5960 transitions. [2022-03-03 18:40:46,468 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 5960 transitions. Word has length 25 [2022-03-03 18:40:46,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:46,468 INFO L470 AbstractCegarLoop]: Abstraction has 1506 states and 5960 transitions. [2022-03-03 18:40:46,468 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) [2022-03-03 18:40:46,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 5960 transitions. [2022-03-03 18:40:46,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:46,471 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:46,471 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] [2022-03-03 18:40:46,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-03-03 18:40:46,471 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:46,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:46,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1823996439, now seen corresponding path program 190 times [2022-03-03 18:40:46,471 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:46,471 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587241985] [2022-03-03 18:40:46,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:46,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:46,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:46,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:46,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587241985] [2022-03-03 18:40:46,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587241985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:46,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:46,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:46,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736555797] [2022-03-03 18:40:46,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:46,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:46,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:46,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:46,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:46,592 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) [2022-03-03 18:40:46,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:46,716 INFO L93 Difference]: Finished difference Result 3115 states and 11507 transitions. [2022-03-03 18:40:46,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:46,717 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:46,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:46,723 INFO L225 Difference]: With dead ends: 3115 [2022-03-03 18:40:46,723 INFO L226 Difference]: Without dead ends: 2847 [2022-03-03 18:40:46,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:46,724 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 [2022-03-03 18:40:46,724 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] [2022-03-03 18:40:46,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2022-03-03 18:40:46,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 1460. [2022-03-03 18:40:46,762 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) [2022-03-03 18:40:46,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5783 transitions. [2022-03-03 18:40:46,765 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5783 transitions. Word has length 25 [2022-03-03 18:40:46,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:46,765 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5783 transitions. [2022-03-03 18:40:46,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:46,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5783 transitions. [2022-03-03 18:40:46,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:46,767 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:46,767 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] [2022-03-03 18:40:46,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-03-03 18:40:46,767 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:46,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:46,768 INFO L85 PathProgramCache]: Analyzing trace with hash 819493365, now seen corresponding path program 191 times [2022-03-03 18:40:46,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:46,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650315454] [2022-03-03 18:40:46,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:46,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:46,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:46,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:46,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650315454] [2022-03-03 18:40:46,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650315454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:46,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:46,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:46,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76155488] [2022-03-03 18:40:46,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:46,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:46,890 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:46,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:46,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:46,890 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) [2022-03-03 18:40:47,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:47,001 INFO L93 Difference]: Finished difference Result 3050 states and 11295 transitions. [2022-03-03 18:40:47,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:47,001 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 [2022-03-03 18:40:47,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:47,008 INFO L225 Difference]: With dead ends: 3050 [2022-03-03 18:40:47,008 INFO L226 Difference]: Without dead ends: 2875 [2022-03-03 18:40:47,008 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 [2022-03-03 18:40:47,008 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 115 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:47,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 136 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:47,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2022-03-03 18:40:47,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 1500. [2022-03-03 18:40:47,034 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) [2022-03-03 18:40:47,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5923 transitions. [2022-03-03 18:40:47,037 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5923 transitions. Word has length 25 [2022-03-03 18:40:47,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:47,038 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5923 transitions. [2022-03-03 18:40:47,038 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) [2022-03-03 18:40:47,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5923 transitions. [2022-03-03 18:40:47,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:47,040 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:47,040 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] [2022-03-03 18:40:47,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-03-03 18:40:47,040 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:47,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:47,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1037844951, now seen corresponding path program 192 times [2022-03-03 18:40:47,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:47,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315793573] [2022-03-03 18:40:47,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:47,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:47,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:47,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:47,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315793573] [2022-03-03 18:40:47,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315793573] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:47,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:47,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:47,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219029333] [2022-03-03 18:40:47,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:47,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:47,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:47,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:47,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:47,161 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) [2022-03-03 18:40:47,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:47,260 INFO L93 Difference]: Finished difference Result 3002 states and 11095 transitions. [2022-03-03 18:40:47,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:47,260 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:47,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:47,267 INFO L225 Difference]: With dead ends: 3002 [2022-03-03 18:40:47,268 INFO L226 Difference]: Without dead ends: 2712 [2022-03-03 18:40:47,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:47,268 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 108 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:47,268 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] [2022-03-03 18:40:47,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2712 states. [2022-03-03 18:40:47,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2712 to 1432. [2022-03-03 18:40:47,297 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) [2022-03-03 18:40:47,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5699 transitions. [2022-03-03 18:40:47,301 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5699 transitions. Word has length 25 [2022-03-03 18:40:47,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:47,301 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5699 transitions. [2022-03-03 18:40:47,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:47,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5699 transitions. [2022-03-03 18:40:47,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:47,303 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:47,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:47,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-03-03 18:40:47,303 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:47,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:47,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1717640593, now seen corresponding path program 193 times [2022-03-03 18:40:47,304 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:47,304 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703488061] [2022-03-03 18:40:47,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:47,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:47,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:47,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:47,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703488061] [2022-03-03 18:40:47,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703488061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:47,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:47,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:47,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995560358] [2022-03-03 18:40:47,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:47,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:47,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:47,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:47,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:47,442 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) [2022-03-03 18:40:47,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:47,545 INFO L93 Difference]: Finished difference Result 2797 states and 10356 transitions. [2022-03-03 18:40:47,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:47,546 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:47,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:47,552 INFO L225 Difference]: With dead ends: 2797 [2022-03-03 18:40:47,552 INFO L226 Difference]: Without dead ends: 2638 [2022-03-03 18:40:47,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:47,552 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 100 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:47,552 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] [2022-03-03 18:40:47,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2638 states. [2022-03-03 18:40:47,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2638 to 1460. [2022-03-03 18:40:47,576 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) [2022-03-03 18:40:47,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5803 transitions. [2022-03-03 18:40:47,579 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5803 transitions. Word has length 25 [2022-03-03 18:40:47,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:47,579 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5803 transitions. [2022-03-03 18:40:47,579 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) [2022-03-03 18:40:47,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5803 transitions. [2022-03-03 18:40:47,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:47,581 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:47,581 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] [2022-03-03 18:40:47,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-03-03 18:40:47,581 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:47,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:47,582 INFO L85 PathProgramCache]: Analyzing trace with hash 127705843, now seen corresponding path program 194 times [2022-03-03 18:40:47,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:47,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530314905] [2022-03-03 18:40:47,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:47,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:47,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:47,699 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:47,699 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530314905] [2022-03-03 18:40:47,699 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530314905] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:47,699 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:47,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:47,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528965937] [2022-03-03 18:40:47,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:47,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:47,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:47,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:47,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:47,700 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) [2022-03-03 18:40:47,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:47,812 INFO L93 Difference]: Finished difference Result 2827 states and 10449 transitions. [2022-03-03 18:40:47,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:47,813 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:47,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:47,818 INFO L225 Difference]: With dead ends: 2827 [2022-03-03 18:40:47,818 INFO L226 Difference]: Without dead ends: 2622 [2022-03-03 18:40:47,819 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 [2022-03-03 18:40:47,819 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 98 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:47,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 153 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:47,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2622 states. [2022-03-03 18:40:47,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2622 to 1444. [2022-03-03 18:40:47,842 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) [2022-03-03 18:40:47,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5747 transitions. [2022-03-03 18:40:47,846 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5747 transitions. Word has length 25 [2022-03-03 18:40:47,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:47,846 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5747 transitions. [2022-03-03 18:40:47,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:47,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5747 transitions. [2022-03-03 18:40:47,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:47,848 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:47,848 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] [2022-03-03 18:40:47,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-03-03 18:40:47,848 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:47,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:47,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1496264077, now seen corresponding path program 195 times [2022-03-03 18:40:47,848 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:47,849 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853505320] [2022-03-03 18:40:47,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:47,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:47,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:47,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:47,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:47,992 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853505320] [2022-03-03 18:40:47,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853505320] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:47,992 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:47,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:47,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495984228] [2022-03-03 18:40:47,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:47,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:47,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:47,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:47,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:47,993 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) [2022-03-03 18:40:48,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:48,092 INFO L93 Difference]: Finished difference Result 2795 states and 10343 transitions. [2022-03-03 18:40:48,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:48,092 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:48,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:48,098 INFO L225 Difference]: With dead ends: 2795 [2022-03-03 18:40:48,098 INFO L226 Difference]: Without dead ends: 2636 [2022-03-03 18:40:48,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:48,098 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 106 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:48,099 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] [2022-03-03 18:40:48,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2022-03-03 18:40:48,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 1460. [2022-03-03 18:40:48,127 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) [2022-03-03 18:40:48,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5795 transitions. [2022-03-03 18:40:48,130 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5795 transitions. Word has length 25 [2022-03-03 18:40:48,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:48,130 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5795 transitions. [2022-03-03 18:40:48,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:48,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5795 transitions. [2022-03-03 18:40:48,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:48,132 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:48,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:48,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-03-03 18:40:48,132 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:48,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:48,133 INFO L85 PathProgramCache]: Analyzing trace with hash -487966093, now seen corresponding path program 196 times [2022-03-03 18:40:48,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:48,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608439345] [2022-03-03 18:40:48,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:48,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:48,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:48,260 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:48,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608439345] [2022-03-03 18:40:48,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608439345] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:48,260 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:48,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:48,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865652343] [2022-03-03 18:40:48,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:48,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:48,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:48,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:48,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:48,261 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) [2022-03-03 18:40:48,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:48,384 INFO L93 Difference]: Finished difference Result 2823 states and 10431 transitions. [2022-03-03 18:40:48,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:48,384 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:48,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:48,391 INFO L225 Difference]: With dead ends: 2823 [2022-03-03 18:40:48,391 INFO L226 Difference]: Without dead ends: 2620 [2022-03-03 18:40:48,391 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 [2022-03-03 18:40:48,391 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 96 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:48,391 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] [2022-03-03 18:40:48,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2620 states. [2022-03-03 18:40:48,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2620 to 1444. [2022-03-03 18:40:48,416 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) [2022-03-03 18:40:48,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5739 transitions. [2022-03-03 18:40:48,420 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5739 transitions. Word has length 25 [2022-03-03 18:40:48,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:48,420 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5739 transitions. [2022-03-03 18:40:48,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:48,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5739 transitions. [2022-03-03 18:40:48,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:48,422 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:48,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:48,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-03-03 18:40:48,422 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:48,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:48,422 INFO L85 PathProgramCache]: Analyzing trace with hash -79102123, now seen corresponding path program 197 times [2022-03-03 18:40:48,422 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:48,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021099249] [2022-03-03 18:40:48,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:48,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:48,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:48,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:48,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021099249] [2022-03-03 18:40:48,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021099249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:48,545 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:48,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:48,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046326267] [2022-03-03 18:40:48,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:48,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:48,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:48,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:48,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:48,546 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) [2022-03-03 18:40:48,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:48,673 INFO L93 Difference]: Finished difference Result 2869 states and 10612 transitions. [2022-03-03 18:40:48,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:48,674 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:48,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:48,680 INFO L225 Difference]: With dead ends: 2869 [2022-03-03 18:40:48,680 INFO L226 Difference]: Without dead ends: 2680 [2022-03-03 18:40:48,680 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 [2022-03-03 18:40:48,680 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 [2022-03-03 18:40:48,681 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] [2022-03-03 18:40:48,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2022-03-03 18:40:48,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 1474. [2022-03-03 18:40:48,706 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) [2022-03-03 18:40:48,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5832 transitions. [2022-03-03 18:40:48,709 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5832 transitions. Word has length 25 [2022-03-03 18:40:48,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:48,709 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5832 transitions. [2022-03-03 18:40:48,709 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) [2022-03-03 18:40:48,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5832 transitions. [2022-03-03 18:40:48,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:48,712 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:48,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:48,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-03-03 18:40:48,712 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:48,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:48,712 INFO L85 PathProgramCache]: Analyzing trace with hash -2122439117, now seen corresponding path program 198 times [2022-03-03 18:40:48,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:48,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551816800] [2022-03-03 18:40:48,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:48,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:48,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:48,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:48,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551816800] [2022-03-03 18:40:48,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551816800] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:48,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:48,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:48,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463637658] [2022-03-03 18:40:48,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:48,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:48,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:48,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:48,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:48,829 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) [2022-03-03 18:40:48,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:48,940 INFO L93 Difference]: Finished difference Result 2867 states and 10577 transitions. [2022-03-03 18:40:48,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:48,940 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 [2022-03-03 18:40:48,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:48,947 INFO L225 Difference]: With dead ends: 2867 [2022-03-03 18:40:48,947 INFO L226 Difference]: Without dead ends: 2642 [2022-03-03 18:40:48,947 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 [2022-03-03 18:40:48,947 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 100 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:48,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 158 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:48,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2022-03-03 18:40:48,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 1436. [2022-03-03 18:40:48,971 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) [2022-03-03 18:40:48,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 5715 transitions. [2022-03-03 18:40:48,975 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 5715 transitions. Word has length 25 [2022-03-03 18:40:48,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:48,975 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 5715 transitions. [2022-03-03 18:40:48,975 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) [2022-03-03 18:40:48,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 5715 transitions. [2022-03-03 18:40:48,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:48,977 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:48,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:48,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-03-03 18:40:48,977 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:48,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:48,977 INFO L85 PathProgramCache]: Analyzing trace with hash 543680883, now seen corresponding path program 199 times [2022-03-03 18:40:48,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:48,977 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139704756] [2022-03-03 18:40:48,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:48,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:49,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:49,096 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:49,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139704756] [2022-03-03 18:40:49,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139704756] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:49,096 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:49,096 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:49,096 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694759261] [2022-03-03 18:40:49,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:49,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:49,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:49,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:49,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:49,096 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) [2022-03-03 18:40:49,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:49,205 INFO L93 Difference]: Finished difference Result 2763 states and 10225 transitions. [2022-03-03 18:40:49,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:49,205 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:49,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:49,212 INFO L225 Difference]: With dead ends: 2763 [2022-03-03 18:40:49,212 INFO L226 Difference]: Without dead ends: 2604 [2022-03-03 18:40:49,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:49,212 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:49,212 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] [2022-03-03 18:40:49,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2022-03-03 18:40:49,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 1460. [2022-03-03 18:40:49,238 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) [2022-03-03 18:40:49,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5799 transitions. [2022-03-03 18:40:49,241 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5799 transitions. Word has length 25 [2022-03-03 18:40:49,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:49,242 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5799 transitions. [2022-03-03 18:40:49,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:49,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5799 transitions. [2022-03-03 18:40:49,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:49,244 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:49,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:49,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-03-03 18:40:49,244 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:49,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:49,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1046253867, now seen corresponding path program 200 times [2022-03-03 18:40:49,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:49,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927879910] [2022-03-03 18:40:49,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:49,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:49,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:49,364 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:49,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927879910] [2022-03-03 18:40:49,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927879910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:49,364 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:49,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:49,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976539582] [2022-03-03 18:40:49,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:49,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:49,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:49,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:49,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:49,365 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) [2022-03-03 18:40:49,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:49,470 INFO L93 Difference]: Finished difference Result 2793 states and 10318 transitions. [2022-03-03 18:40:49,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:49,470 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 [2022-03-03 18:40:49,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:49,476 INFO L225 Difference]: With dead ends: 2793 [2022-03-03 18:40:49,476 INFO L226 Difference]: Without dead ends: 2588 [2022-03-03 18:40:49,476 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 [2022-03-03 18:40:49,476 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 136 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:49,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 128 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:49,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2022-03-03 18:40:49,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 1444. [2022-03-03 18:40:49,500 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) [2022-03-03 18:40:49,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5743 transitions. [2022-03-03 18:40:49,503 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5743 transitions. Word has length 25 [2022-03-03 18:40:49,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:49,503 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5743 transitions. [2022-03-03 18:40:49,503 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) [2022-03-03 18:40:49,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5743 transitions. [2022-03-03 18:40:49,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:49,506 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:49,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:49,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-03-03 18:40:49,506 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:49,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:49,506 INFO L85 PathProgramCache]: Analyzing trace with hash 593248627, now seen corresponding path program 201 times [2022-03-03 18:40:49,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:49,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481781411] [2022-03-03 18:40:49,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:49,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:49,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:49,626 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:49,626 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481781411] [2022-03-03 18:40:49,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481781411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:49,626 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:49,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:49,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687157429] [2022-03-03 18:40:49,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:49,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:49,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:49,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:49,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:49,626 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) [2022-03-03 18:40:49,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:49,731 INFO L93 Difference]: Finished difference Result 2717 states and 10060 transitions. [2022-03-03 18:40:49,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:49,731 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 [2022-03-03 18:40:49,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:49,737 INFO L225 Difference]: With dead ends: 2717 [2022-03-03 18:40:49,737 INFO L226 Difference]: Without dead ends: 2558 [2022-03-03 18:40:49,738 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 [2022-03-03 18:40:49,738 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 [2022-03-03 18:40:49,738 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] [2022-03-03 18:40:49,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2022-03-03 18:40:49,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 1460. [2022-03-03 18:40:49,762 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) [2022-03-03 18:40:49,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5791 transitions. [2022-03-03 18:40:49,765 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5791 transitions. Word has length 25 [2022-03-03 18:40:49,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:49,765 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5791 transitions. [2022-03-03 18:40:49,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:49,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5791 transitions. [2022-03-03 18:40:49,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:49,767 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:49,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:49,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-03-03 18:40:49,768 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:49,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:49,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1349023373, now seen corresponding path program 202 times [2022-03-03 18:40:49,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:49,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938861843] [2022-03-03 18:40:49,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:49,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:49,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:49,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:49,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938861843] [2022-03-03 18:40:49,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938861843] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:49,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:49,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:49,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115117556] [2022-03-03 18:40:49,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:49,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:49,890 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:49,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:49,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:49,890 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) [2022-03-03 18:40:50,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:50,015 INFO L93 Difference]: Finished difference Result 2605 states and 9723 transitions. [2022-03-03 18:40:50,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:50,015 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 [2022-03-03 18:40:50,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:50,021 INFO L225 Difference]: With dead ends: 2605 [2022-03-03 18:40:50,021 INFO L226 Difference]: Without dead ends: 2414 [2022-03-03 18:40:50,021 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 [2022-03-03 18:40:50,021 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 [2022-03-03 18:40:50,021 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] [2022-03-03 18:40:50,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2022-03-03 18:40:50,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 1444. [2022-03-03 18:40:50,048 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) [2022-03-03 18:40:50,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5735 transitions. [2022-03-03 18:40:50,051 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5735 transitions. Word has length 25 [2022-03-03 18:40:50,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:50,051 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5735 transitions. [2022-03-03 18:40:50,051 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) [2022-03-03 18:40:50,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5735 transitions. [2022-03-03 18:40:50,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:50,053 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:50,053 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] [2022-03-03 18:40:50,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-03-03 18:40:50,054 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:50,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:50,054 INFO L85 PathProgramCache]: Analyzing trace with hash 2010410581, now seen corresponding path program 203 times [2022-03-03 18:40:50,054 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:50,054 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129498142] [2022-03-03 18:40:50,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:50,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:50,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:50,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:50,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129498142] [2022-03-03 18:40:50,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129498142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:50,174 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:50,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:50,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004194865] [2022-03-03 18:40:50,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:50,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:50,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:50,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:50,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:50,175 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) [2022-03-03 18:40:50,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:50,292 INFO L93 Difference]: Finished difference Result 2755 states and 10197 transitions. [2022-03-03 18:40:50,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:50,293 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:50,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:50,299 INFO L225 Difference]: With dead ends: 2755 [2022-03-03 18:40:50,299 INFO L226 Difference]: Without dead ends: 2566 [2022-03-03 18:40:50,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:50,299 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 99 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:50,299 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] [2022-03-03 18:40:50,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2566 states. [2022-03-03 18:40:50,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2566 to 1468. [2022-03-03 18:40:50,323 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) [2022-03-03 18:40:50,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5811 transitions. [2022-03-03 18:40:50,326 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5811 transitions. Word has length 25 [2022-03-03 18:40:50,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:50,326 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5811 transitions. [2022-03-03 18:40:50,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:50,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5811 transitions. [2022-03-03 18:40:50,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:50,328 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:50,328 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] [2022-03-03 18:40:50,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-03-03 18:40:50,329 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:50,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:50,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1269458483, now seen corresponding path program 204 times [2022-03-03 18:40:50,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:50,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799195181] [2022-03-03 18:40:50,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:50,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:50,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:50,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:50,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799195181] [2022-03-03 18:40:50,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799195181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:50,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:50,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:50,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115979139] [2022-03-03 18:40:50,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:50,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:50,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:50,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:50,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:50,462 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) [2022-03-03 18:40:50,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:50,575 INFO L93 Difference]: Finished difference Result 2613 states and 9743 transitions. [2022-03-03 18:40:50,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:50,576 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 [2022-03-03 18:40:50,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:50,583 INFO L225 Difference]: With dead ends: 2613 [2022-03-03 18:40:50,583 INFO L226 Difference]: Without dead ends: 2406 [2022-03-03 18:40:50,583 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 [2022-03-03 18:40:50,584 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 94 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:50,584 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] [2022-03-03 18:40:50,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2022-03-03 18:40:50,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 1436. [2022-03-03 18:40:50,615 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) [2022-03-03 18:40:50,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 5711 transitions. [2022-03-03 18:40:50,618 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 5711 transitions. Word has length 25 [2022-03-03 18:40:50,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:50,618 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 5711 transitions. [2022-03-03 18:40:50,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:50,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 5711 transitions. [2022-03-03 18:40:50,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:50,620 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:50,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:50,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-03-03 18:40:50,621 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:50,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:50,621 INFO L85 PathProgramCache]: Analyzing trace with hash 931685845, now seen corresponding path program 205 times [2022-03-03 18:40:50,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:50,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547905034] [2022-03-03 18:40:50,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:50,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:50,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:50,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:50,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547905034] [2022-03-03 18:40:50,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547905034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:50,740 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:50,740 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:50,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652283807] [2022-03-03 18:40:50,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:50,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:50,740 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:50,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:50,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:50,741 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) [2022-03-03 18:40:50,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:50,842 INFO L93 Difference]: Finished difference Result 2759 states and 10211 transitions. [2022-03-03 18:40:50,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:50,842 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 [2022-03-03 18:40:50,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:50,848 INFO L225 Difference]: With dead ends: 2759 [2022-03-03 18:40:50,848 INFO L226 Difference]: Without dead ends: 2600 [2022-03-03 18:40:50,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:50,849 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 110 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:50,849 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] [2022-03-03 18:40:50,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2600 states. [2022-03-03 18:40:50,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2600 to 1460. [2022-03-03 18:40:50,874 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) [2022-03-03 18:40:50,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5795 transitions. [2022-03-03 18:40:50,877 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5795 transitions. Word has length 25 [2022-03-03 18:40:50,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:50,877 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5795 transitions. [2022-03-03 18:40:50,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:50,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5795 transitions. [2022-03-03 18:40:50,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:50,880 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:50,880 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] [2022-03-03 18:40:50,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-03-03 18:40:50,880 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:50,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:50,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1939983829, now seen corresponding path program 206 times [2022-03-03 18:40:50,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:50,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681258868] [2022-03-03 18:40:50,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:50,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:50,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:50,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:50,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681258868] [2022-03-03 18:40:50,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681258868] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:50,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:50,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:50,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790187362] [2022-03-03 18:40:50,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:50,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:50,998 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:50,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:50,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:50,999 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) [2022-03-03 18:40:51,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:51,107 INFO L93 Difference]: Finished difference Result 2787 states and 10299 transitions. [2022-03-03 18:40:51,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:51,107 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:51,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:51,114 INFO L225 Difference]: With dead ends: 2787 [2022-03-03 18:40:51,114 INFO L226 Difference]: Without dead ends: 2584 [2022-03-03 18:40:51,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:51,114 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 [2022-03-03 18:40:51,114 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] [2022-03-03 18:40:51,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2584 states. [2022-03-03 18:40:51,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2584 to 1444. [2022-03-03 18:40:51,138 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) [2022-03-03 18:40:51,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5739 transitions. [2022-03-03 18:40:51,141 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5739 transitions. Word has length 25 [2022-03-03 18:40:51,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:51,142 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5739 transitions. [2022-03-03 18:40:51,142 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) [2022-03-03 18:40:51,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5739 transitions. [2022-03-03 18:40:51,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:51,144 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:51,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:51,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-03-03 18:40:51,144 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:51,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:51,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1184393805, now seen corresponding path program 207 times [2022-03-03 18:40:51,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:51,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420078194] [2022-03-03 18:40:51,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:51,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:51,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:51,264 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:51,264 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420078194] [2022-03-03 18:40:51,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420078194] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:51,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:51,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:51,265 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775108879] [2022-03-03 18:40:51,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:51,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:51,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:51,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:51,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:51,265 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) [2022-03-03 18:40:51,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:51,372 INFO L93 Difference]: Finished difference Result 2715 states and 10051 transitions. [2022-03-03 18:40:51,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:51,372 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 [2022-03-03 18:40:51,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:51,378 INFO L225 Difference]: With dead ends: 2715 [2022-03-03 18:40:51,378 INFO L226 Difference]: Without dead ends: 2556 [2022-03-03 18:40:51,378 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 [2022-03-03 18:40:51,378 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 [2022-03-03 18:40:51,378 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] [2022-03-03 18:40:51,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2022-03-03 18:40:51,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 1460. [2022-03-03 18:40:51,401 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) [2022-03-03 18:40:51,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5787 transitions. [2022-03-03 18:40:51,404 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5787 transitions. Word has length 25 [2022-03-03 18:40:51,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:51,404 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5787 transitions. [2022-03-03 18:40:51,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:51,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5787 transitions. [2022-03-03 18:40:51,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:51,407 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:51,407 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] [2022-03-03 18:40:51,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-03-03 18:40:51,407 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:51,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:51,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1829925419, now seen corresponding path program 208 times [2022-03-03 18:40:51,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:51,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037454082] [2022-03-03 18:40:51,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:51,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:51,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:51,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:51,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037454082] [2022-03-03 18:40:51,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037454082] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:51,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:51,525 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:51,525 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122877879] [2022-03-03 18:40:51,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:51,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:51,525 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:51,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:51,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:51,525 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) [2022-03-03 18:40:51,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:51,642 INFO L93 Difference]: Finished difference Result 2603 states and 9714 transitions. [2022-03-03 18:40:51,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:51,642 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 [2022-03-03 18:40:51,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:51,648 INFO L225 Difference]: With dead ends: 2603 [2022-03-03 18:40:51,648 INFO L226 Difference]: Without dead ends: 2412 [2022-03-03 18:40:51,648 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 [2022-03-03 18:40:51,648 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 91 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:51,648 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] [2022-03-03 18:40:51,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2022-03-03 18:40:51,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 1444. [2022-03-03 18:40:51,672 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) [2022-03-03 18:40:51,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5731 transitions. [2022-03-03 18:40:51,675 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5731 transitions. Word has length 25 [2022-03-03 18:40:51,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:51,676 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5731 transitions. [2022-03-03 18:40:51,676 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) [2022-03-03 18:40:51,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5731 transitions. [2022-03-03 18:40:51,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:51,678 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:51,678 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] [2022-03-03 18:40:51,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-03-03 18:40:51,678 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:51,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:51,678 INFO L85 PathProgramCache]: Analyzing trace with hash -567601707, now seen corresponding path program 209 times [2022-03-03 18:40:51,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:51,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647598022] [2022-03-03 18:40:51,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:51,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:51,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:51,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:51,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647598022] [2022-03-03 18:40:51,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647598022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:51,797 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:51,797 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:51,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495022816] [2022-03-03 18:40:51,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:51,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:51,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:51,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:51,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:51,798 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) [2022-03-03 18:40:51,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:51,912 INFO L93 Difference]: Finished difference Result 2751 states and 10183 transitions. [2022-03-03 18:40:51,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:51,912 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:51,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:51,918 INFO L225 Difference]: With dead ends: 2751 [2022-03-03 18:40:51,918 INFO L226 Difference]: Without dead ends: 2564 [2022-03-03 18:40:51,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:51,919 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 101 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:51,919 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] [2022-03-03 18:40:51,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2022-03-03 18:40:51,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 1468. [2022-03-03 18:40:51,942 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) [2022-03-03 18:40:51,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5807 transitions. [2022-03-03 18:40:51,945 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5807 transitions. Word has length 25 [2022-03-03 18:40:51,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:51,945 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5807 transitions. [2022-03-03 18:40:51,945 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) [2022-03-03 18:40:51,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5807 transitions. [2022-03-03 18:40:51,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:51,947 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:51,947 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] [2022-03-03 18:40:51,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-03-03 18:40:51,948 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:51,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:51,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1959746253, now seen corresponding path program 210 times [2022-03-03 18:40:51,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:51,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518308761] [2022-03-03 18:40:51,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:51,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:52,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:52,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:52,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518308761] [2022-03-03 18:40:52,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518308761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:52,067 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:52,067 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:52,067 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101709184] [2022-03-03 18:40:52,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:52,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:52,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:52,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:52,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:52,068 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) [2022-03-03 18:40:52,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:52,182 INFO L93 Difference]: Finished difference Result 2611 states and 9734 transitions. [2022-03-03 18:40:52,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:52,182 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 [2022-03-03 18:40:52,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:52,188 INFO L225 Difference]: With dead ends: 2611 [2022-03-03 18:40:52,188 INFO L226 Difference]: Without dead ends: 2404 [2022-03-03 18:40:52,188 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 [2022-03-03 18:40:52,188 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 86 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:52,188 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] [2022-03-03 18:40:52,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states. [2022-03-03 18:40:52,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 1436. [2022-03-03 18:40:52,210 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) [2022-03-03 18:40:52,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 5707 transitions. [2022-03-03 18:40:52,213 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 5707 transitions. Word has length 25 [2022-03-03 18:40:52,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:52,213 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 5707 transitions. [2022-03-03 18:40:52,213 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) [2022-03-03 18:40:52,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 5707 transitions. [2022-03-03 18:40:52,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:52,215 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:52,215 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] [2022-03-03 18:40:52,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-03-03 18:40:52,215 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:52,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:52,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1655790135, now seen corresponding path program 211 times [2022-03-03 18:40:52,216 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:52,216 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867357328] [2022-03-03 18:40:52,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:52,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:52,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:52,343 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:52,343 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867357328] [2022-03-03 18:40:52,343 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867357328] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:52,343 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:52,343 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:52,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465619764] [2022-03-03 18:40:52,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:52,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:52,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:52,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:52,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:52,344 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) [2022-03-03 18:40:52,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:52,463 INFO L93 Difference]: Finished difference Result 2875 states and 10649 transitions. [2022-03-03 18:40:52,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:52,464 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:52,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:52,470 INFO L225 Difference]: With dead ends: 2875 [2022-03-03 18:40:52,470 INFO L226 Difference]: Without dead ends: 2686 [2022-03-03 18:40:52,470 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 [2022-03-03 18:40:52,470 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 110 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:52,470 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] [2022-03-03 18:40:52,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2022-03-03 18:40:52,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 1478. [2022-03-03 18:40:52,494 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) [2022-03-03 18:40:52,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 5856 transitions. [2022-03-03 18:40:52,497 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 5856 transitions. Word has length 25 [2022-03-03 18:40:52,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:52,497 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 5856 transitions. [2022-03-03 18:40:52,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:52,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 5856 transitions. [2022-03-03 18:40:52,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:52,499 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:52,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:52,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-03-03 18:40:52,500 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:52,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:52,500 INFO L85 PathProgramCache]: Analyzing trace with hash -387546859, now seen corresponding path program 212 times [2022-03-03 18:40:52,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:52,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252839599] [2022-03-03 18:40:52,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:52,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:52,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:52,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:52,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252839599] [2022-03-03 18:40:52,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252839599] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:52,613 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:52,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:52,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468025518] [2022-03-03 18:40:52,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:52,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:52,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:52,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:52,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:52,614 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) [2022-03-03 18:40:52,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:52,731 INFO L93 Difference]: Finished difference Result 2873 states and 10614 transitions. [2022-03-03 18:40:52,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:52,731 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 [2022-03-03 18:40:52,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:52,737 INFO L225 Difference]: With dead ends: 2873 [2022-03-03 18:40:52,737 INFO L226 Difference]: Without dead ends: 2656 [2022-03-03 18:40:52,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:52,737 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 [2022-03-03 18:40:52,737 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] [2022-03-03 18:40:52,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2022-03-03 18:40:52,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 1448. [2022-03-03 18:40:52,760 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) [2022-03-03 18:40:52,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5751 transitions. [2022-03-03 18:40:52,763 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5751 transitions. Word has length 25 [2022-03-03 18:40:52,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:52,763 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5751 transitions. [2022-03-03 18:40:52,763 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) [2022-03-03 18:40:52,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5751 transitions. [2022-03-03 18:40:52,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:52,766 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:52,766 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] [2022-03-03 18:40:52,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-03-03 18:40:52,766 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:52,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:52,766 INFO L85 PathProgramCache]: Analyzing trace with hash -460289515, now seen corresponding path program 213 times [2022-03-03 18:40:52,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:52,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249096731] [2022-03-03 18:40:52,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:52,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:52,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:52,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:52,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249096731] [2022-03-03 18:40:52,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249096731] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:52,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:52,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:52,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855733076] [2022-03-03 18:40:52,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:52,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:52,883 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:52,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:52,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:52,884 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) [2022-03-03 18:40:52,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:52,996 INFO L93 Difference]: Finished difference Result 2795 states and 10353 transitions. [2022-03-03 18:40:52,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:52,997 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:52,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:53,003 INFO L225 Difference]: With dead ends: 2795 [2022-03-03 18:40:53,003 INFO L226 Difference]: Without dead ends: 2606 [2022-03-03 18:40:53,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:53,003 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 [2022-03-03 18:40:53,004 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] [2022-03-03 18:40:53,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2022-03-03 18:40:53,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 1472. [2022-03-03 18:40:53,027 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) [2022-03-03 18:40:53,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5827 transitions. [2022-03-03 18:40:53,030 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5827 transitions. Word has length 25 [2022-03-03 18:40:53,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:53,031 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5827 transitions. [2022-03-03 18:40:53,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:53,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5827 transitions. [2022-03-03 18:40:53,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:53,033 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:53,033 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] [2022-03-03 18:40:53,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-03-03 18:40:53,033 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:53,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:53,033 INFO L85 PathProgramCache]: Analyzing trace with hash 95498773, now seen corresponding path program 214 times [2022-03-03 18:40:53,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:53,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116728566] [2022-03-03 18:40:53,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:53,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:53,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:53,147 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:53,147 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116728566] [2022-03-03 18:40:53,147 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116728566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:53,147 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:53,147 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:53,148 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843535461] [2022-03-03 18:40:53,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:53,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:53,148 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:53,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:53,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:53,148 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) [2022-03-03 18:40:53,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:53,257 INFO L93 Difference]: Finished difference Result 2653 states and 9899 transitions. [2022-03-03 18:40:53,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:53,257 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 [2022-03-03 18:40:53,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:53,263 INFO L225 Difference]: With dead ends: 2653 [2022-03-03 18:40:53,263 INFO L226 Difference]: Without dead ends: 2454 [2022-03-03 18:40:53,263 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 [2022-03-03 18:40:53,263 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 [2022-03-03 18:40:53,263 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] [2022-03-03 18:40:53,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2454 states. [2022-03-03 18:40:53,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2454 to 1448. [2022-03-03 18:40:53,285 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) [2022-03-03 18:40:53,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5739 transitions. [2022-03-03 18:40:53,288 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5739 transitions. Word has length 25 [2022-03-03 18:40:53,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:53,288 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5739 transitions. [2022-03-03 18:40:53,288 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) [2022-03-03 18:40:53,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5739 transitions. [2022-03-03 18:40:53,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:53,291 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:53,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:53,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-03-03 18:40:53,291 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:53,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:53,291 INFO L85 PathProgramCache]: Analyzing trace with hash 522058099, now seen corresponding path program 215 times [2022-03-03 18:40:53,291 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:53,291 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634913358] [2022-03-03 18:40:53,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:53,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:53,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:53,406 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:53,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634913358] [2022-03-03 18:40:53,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634913358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:53,407 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:53,407 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:53,407 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5672144] [2022-03-03 18:40:53,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:53,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:53,407 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:53,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:53,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:53,407 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) [2022-03-03 18:40:53,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:53,511 INFO L93 Difference]: Finished difference Result 2793 states and 10336 transitions. [2022-03-03 18:40:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:53,512 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:53,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:53,518 INFO L225 Difference]: With dead ends: 2793 [2022-03-03 18:40:53,518 INFO L226 Difference]: Without dead ends: 2606 [2022-03-03 18:40:53,518 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 [2022-03-03 18:40:53,518 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:53,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 135 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:53,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2022-03-03 18:40:53,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 1472. [2022-03-03 18:40:53,542 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) [2022-03-03 18:40:53,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5815 transitions. [2022-03-03 18:40:53,545 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5815 transitions. Word has length 25 [2022-03-03 18:40:53,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:53,545 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5815 transitions. [2022-03-03 18:40:53,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:53,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5815 transitions. [2022-03-03 18:40:53,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:53,547 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:53,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:53,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-03-03 18:40:53,547 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:53,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:53,548 INFO L85 PathProgramCache]: Analyzing trace with hash 315250133, now seen corresponding path program 216 times [2022-03-03 18:40:53,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:53,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038954930] [2022-03-03 18:40:53,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:53,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:53,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:53,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:53,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038954930] [2022-03-03 18:40:53,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038954930] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:53,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:53,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:53,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901465068] [2022-03-03 18:40:53,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:53,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:53,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:53,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:53,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:53,665 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) [2022-03-03 18:40:53,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:53,806 INFO L93 Difference]: Finished difference Result 2653 states and 9887 transitions. [2022-03-03 18:40:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:53,806 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:53,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:53,812 INFO L225 Difference]: With dead ends: 2653 [2022-03-03 18:40:53,812 INFO L226 Difference]: Without dead ends: 2438 [2022-03-03 18:40:53,812 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 [2022-03-03 18:40:53,813 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 [2022-03-03 18:40:53,813 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] [2022-03-03 18:40:53,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2438 states. [2022-03-03 18:40:53,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2438 to 1432. [2022-03-03 18:40:53,835 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) [2022-03-03 18:40:53,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5697 transitions. [2022-03-03 18:40:53,839 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5697 transitions. Word has length 25 [2022-03-03 18:40:53,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:53,839 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5697 transitions. [2022-03-03 18:40:53,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:53,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5697 transitions. [2022-03-03 18:40:53,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:53,841 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:53,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:53,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-03-03 18:40:53,841 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:53,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:53,841 INFO L85 PathProgramCache]: Analyzing trace with hash -312606951, now seen corresponding path program 217 times [2022-03-03 18:40:53,841 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:53,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545087533] [2022-03-03 18:40:53,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:53,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:53,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:53,960 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:53,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545087533] [2022-03-03 18:40:53,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545087533] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:53,960 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:53,960 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:53,960 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021278110] [2022-03-03 18:40:53,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:53,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:53,960 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:53,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:53,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:53,960 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) [2022-03-03 18:40:54,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:54,094 INFO L93 Difference]: Finished difference Result 3154 states and 11754 transitions. [2022-03-03 18:40:54,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:54,094 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:54,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:54,101 INFO L225 Difference]: With dead ends: 3154 [2022-03-03 18:40:54,101 INFO L226 Difference]: Without dead ends: 2965 [2022-03-03 18:40:54,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:54,101 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 [2022-03-03 18:40:54,101 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] [2022-03-03 18:40:54,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2022-03-03 18:40:54,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 1492. [2022-03-03 18:40:54,126 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) [2022-03-03 18:40:54,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 5925 transitions. [2022-03-03 18:40:54,150 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 5925 transitions. Word has length 25 [2022-03-03 18:40:54,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:54,151 INFO L470 AbstractCegarLoop]: Abstraction has 1492 states and 5925 transitions. [2022-03-03 18:40:54,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:54,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 5925 transitions. [2022-03-03 18:40:54,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:54,153 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:54,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:54,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-03-03 18:40:54,153 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:54,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:54,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1939023351, now seen corresponding path program 218 times [2022-03-03 18:40:54,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:54,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770961960] [2022-03-03 18:40:54,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:54,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:54,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:54,268 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:54,268 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770961960] [2022-03-03 18:40:54,268 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770961960] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:54,268 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:54,268 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:54,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447092498] [2022-03-03 18:40:54,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:54,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:54,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:54,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:54,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:54,269 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) [2022-03-03 18:40:54,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:54,396 INFO L93 Difference]: Finished difference Result 3152 states and 11719 transitions. [2022-03-03 18:40:54,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:54,396 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:54,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:54,403 INFO L225 Difference]: With dead ends: 3152 [2022-03-03 18:40:54,403 INFO L226 Difference]: Without dead ends: 2935 [2022-03-03 18:40:54,403 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 [2022-03-03 18:40:54,403 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 [2022-03-03 18:40:54,404 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] [2022-03-03 18:40:54,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2022-03-03 18:40:54,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1462. [2022-03-03 18:40:54,429 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) [2022-03-03 18:40:54,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 5820 transitions. [2022-03-03 18:40:54,432 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 5820 transitions. Word has length 25 [2022-03-03 18:40:54,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:54,432 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 5820 transitions. [2022-03-03 18:40:54,432 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) [2022-03-03 18:40:54,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 5820 transitions. [2022-03-03 18:40:54,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:54,434 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:54,434 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] [2022-03-03 18:40:54,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-03-03 18:40:54,434 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:54,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:54,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1866280695, now seen corresponding path program 219 times [2022-03-03 18:40:54,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:54,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291122614] [2022-03-03 18:40:54,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:54,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:54,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:54,551 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:54,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291122614] [2022-03-03 18:40:54,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291122614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:54,551 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:54,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:54,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834383953] [2022-03-03 18:40:54,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:54,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:54,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:54,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:54,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:54,552 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) [2022-03-03 18:40:54,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:54,666 INFO L93 Difference]: Finished difference Result 3136 states and 11679 transitions. [2022-03-03 18:40:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:54,667 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 [2022-03-03 18:40:54,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:54,673 INFO L225 Difference]: With dead ends: 3136 [2022-03-03 18:40:54,673 INFO L226 Difference]: Without dead ends: 2947 [2022-03-03 18:40:54,673 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 [2022-03-03 18:40:54,674 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 [2022-03-03 18:40:54,674 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] [2022-03-03 18:40:54,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2022-03-03 18:40:54,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 1486. [2022-03-03 18:40:54,699 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) [2022-03-03 18:40:54,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5896 transitions. [2022-03-03 18:40:54,702 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5896 transitions. Word has length 25 [2022-03-03 18:40:54,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:54,703 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5896 transitions. [2022-03-03 18:40:54,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:54,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5896 transitions. [2022-03-03 18:40:54,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:54,705 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:54,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:54,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-03-03 18:40:54,705 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:54,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:54,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1872898313, now seen corresponding path program 220 times [2022-03-03 18:40:54,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:54,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297942986] [2022-03-03 18:40:54,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:54,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:54,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:54,820 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:54,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297942986] [2022-03-03 18:40:54,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297942986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:54,820 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:54,820 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:54,820 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628001731] [2022-03-03 18:40:54,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:54,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:54,820 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:54,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:54,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:54,821 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) [2022-03-03 18:40:54,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:54,937 INFO L93 Difference]: Finished difference Result 3122 states and 11610 transitions. [2022-03-03 18:40:54,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:54,937 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 [2022-03-03 18:40:54,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:54,944 INFO L225 Difference]: With dead ends: 3122 [2022-03-03 18:40:54,944 INFO L226 Difference]: Without dead ends: 2923 [2022-03-03 18:40:54,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:54,944 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 [2022-03-03 18:40:54,944 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] [2022-03-03 18:40:54,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2022-03-03 18:40:54,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 1462. [2022-03-03 18:40:54,970 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) [2022-03-03 18:40:54,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 5808 transitions. [2022-03-03 18:40:54,973 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 5808 transitions. Word has length 25 [2022-03-03 18:40:54,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:54,973 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 5808 transitions. [2022-03-03 18:40:54,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:54,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 5808 transitions. [2022-03-03 18:40:54,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:54,975 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:54,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:54,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-03-03 18:40:54,975 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:54,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:54,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1446338987, now seen corresponding path program 221 times [2022-03-03 18:40:54,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:54,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876415836] [2022-03-03 18:40:54,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:54,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:55,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:55,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:55,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876415836] [2022-03-03 18:40:55,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876415836] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:55,095 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:55,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:55,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833338291] [2022-03-03 18:40:55,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:55,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:55,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:55,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:55,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:55,096 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) [2022-03-03 18:40:55,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:55,209 INFO L93 Difference]: Finished difference Result 3132 states and 11657 transitions. [2022-03-03 18:40:55,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:55,209 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 [2022-03-03 18:40:55,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:55,216 INFO L225 Difference]: With dead ends: 3132 [2022-03-03 18:40:55,216 INFO L226 Difference]: Without dead ends: 2945 [2022-03-03 18:40:55,216 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 [2022-03-03 18:40:55,216 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 102 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:55,216 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] [2022-03-03 18:40:55,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2022-03-03 18:40:55,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 1486. [2022-03-03 18:40:55,241 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) [2022-03-03 18:40:55,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5884 transitions. [2022-03-03 18:40:55,245 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5884 transitions. Word has length 25 [2022-03-03 18:40:55,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:55,245 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5884 transitions. [2022-03-03 18:40:55,245 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) [2022-03-03 18:40:55,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5884 transitions. [2022-03-03 18:40:55,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:55,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:55,247 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] [2022-03-03 18:40:55,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-03-03 18:40:55,247 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:55,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:55,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1653146953, now seen corresponding path program 222 times [2022-03-03 18:40:55,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:55,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934709399] [2022-03-03 18:40:55,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:55,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:55,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:55,364 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:55,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934709399] [2022-03-03 18:40:55,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934709399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:55,364 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:55,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:55,364 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414886524] [2022-03-03 18:40:55,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:55,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:55,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:55,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:55,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:55,365 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) [2022-03-03 18:40:55,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:55,475 INFO L93 Difference]: Finished difference Result 3120 states and 11593 transitions. [2022-03-03 18:40:55,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:55,475 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 [2022-03-03 18:40:55,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:55,481 INFO L225 Difference]: With dead ends: 3120 [2022-03-03 18:40:55,482 INFO L226 Difference]: Without dead ends: 2909 [2022-03-03 18:40:55,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:55,482 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 107 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:55,482 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] [2022-03-03 18:40:55,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2909 states. [2022-03-03 18:40:55,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2909 to 1450. [2022-03-03 18:40:55,506 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) [2022-03-03 18:40:55,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 5770 transitions. [2022-03-03 18:40:55,510 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 5770 transitions. Word has length 25 [2022-03-03 18:40:55,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:55,510 INFO L470 AbstractCegarLoop]: Abstraction has 1450 states and 5770 transitions. [2022-03-03 18:40:55,510 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) [2022-03-03 18:40:55,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 5770 transitions. [2022-03-03 18:40:55,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:55,512 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:55,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:55,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-03-03 18:40:55,512 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:55,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:55,512 INFO L85 PathProgramCache]: Analyzing trace with hash 2019005431, now seen corresponding path program 223 times [2022-03-03 18:40:55,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:55,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433105614] [2022-03-03 18:40:55,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:55,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:55,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:55,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:55,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433105614] [2022-03-03 18:40:55,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433105614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:55,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:55,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:55,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789823063] [2022-03-03 18:40:55,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:55,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:55,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:55,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:55,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:55,642 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) [2022-03-03 18:40:55,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:55,769 INFO L93 Difference]: Finished difference Result 3250 states and 12076 transitions. [2022-03-03 18:40:55,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:55,769 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 [2022-03-03 18:40:55,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:55,776 INFO L225 Difference]: With dead ends: 3250 [2022-03-03 18:40:55,776 INFO L226 Difference]: Without dead ends: 3061 [2022-03-03 18:40:55,777 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 [2022-03-03 18:40:55,777 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 [2022-03-03 18:40:55,777 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] [2022-03-03 18:40:55,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3061 states. [2022-03-03 18:40:55,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3061 to 1519. [2022-03-03 18:40:55,806 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) [2022-03-03 18:40:55,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 6016 transitions. [2022-03-03 18:40:55,809 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 6016 transitions. Word has length 25 [2022-03-03 18:40:55,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:55,809 INFO L470 AbstractCegarLoop]: Abstraction has 1519 states and 6016 transitions. [2022-03-03 18:40:55,810 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) [2022-03-03 18:40:55,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 6016 transitions. [2022-03-03 18:40:55,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:55,812 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:55,812 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] [2022-03-03 18:40:55,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-03-03 18:40:55,812 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:55,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:55,812 INFO L85 PathProgramCache]: Analyzing trace with hash -24331563, now seen corresponding path program 224 times [2022-03-03 18:40:55,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:55,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545731975] [2022-03-03 18:40:55,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:55,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:55,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:55,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:55,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545731975] [2022-03-03 18:40:55,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545731975] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:55,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:55,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:55,933 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808695861] [2022-03-03 18:40:55,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:55,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:55,933 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:55,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:55,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:55,933 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) [2022-03-03 18:40:56,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:56,059 INFO L93 Difference]: Finished difference Result 3248 states and 12041 transitions. [2022-03-03 18:40:56,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:56,059 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 [2022-03-03 18:40:56,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:56,066 INFO L225 Difference]: With dead ends: 3248 [2022-03-03 18:40:56,066 INFO L226 Difference]: Without dead ends: 3031 [2022-03-03 18:40:56,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:56,066 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 124 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:56,067 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] [2022-03-03 18:40:56,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3031 states. [2022-03-03 18:40:56,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3031 to 1489. [2022-03-03 18:40:56,091 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) [2022-03-03 18:40:56,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 5908 transitions. [2022-03-03 18:40:56,095 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 5908 transitions. Word has length 25 [2022-03-03 18:40:56,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:56,095 INFO L470 AbstractCegarLoop]: Abstraction has 1489 states and 5908 transitions. [2022-03-03 18:40:56,095 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) [2022-03-03 18:40:56,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 5908 transitions. [2022-03-03 18:40:56,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:56,097 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:56,097 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] [2022-03-03 18:40:56,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-03-03 18:40:56,097 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:56,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:56,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1157163913, now seen corresponding path program 225 times [2022-03-03 18:40:56,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:56,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118175282] [2022-03-03 18:40:56,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:56,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:56,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:56,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:56,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118175282] [2022-03-03 18:40:56,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118175282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:56,214 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:56,214 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:56,214 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385447390] [2022-03-03 18:40:56,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:56,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:56,214 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:56,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:56,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:56,215 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) [2022-03-03 18:40:56,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:56,337 INFO L93 Difference]: Finished difference Result 3318 states and 12295 transitions. [2022-03-03 18:40:56,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:56,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:56,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:56,344 INFO L225 Difference]: With dead ends: 3318 [2022-03-03 18:40:56,344 INFO L226 Difference]: Without dead ends: 3129 [2022-03-03 18:40:56,344 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 [2022-03-03 18:40:56,344 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 115 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:56,345 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] [2022-03-03 18:40:56,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3129 states. [2022-03-03 18:40:56,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3129 to 1552. [2022-03-03 18:40:56,370 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) [2022-03-03 18:40:56,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 6115 transitions. [2022-03-03 18:40:56,374 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 6115 transitions. Word has length 25 [2022-03-03 18:40:56,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:56,374 INFO L470 AbstractCegarLoop]: Abstraction has 1552 states and 6115 transitions. [2022-03-03 18:40:56,374 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) [2022-03-03 18:40:56,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 6115 transitions. [2022-03-03 18:40:56,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:56,376 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:56,376 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] [2022-03-03 18:40:56,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-03-03 18:40:56,377 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:56,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:56,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1712952201, now seen corresponding path program 226 times [2022-03-03 18:40:56,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:56,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323532369] [2022-03-03 18:40:56,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:56,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:56,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:56,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:56,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323532369] [2022-03-03 18:40:56,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323532369] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:56,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:56,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:56,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446356181] [2022-03-03 18:40:56,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:56,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:56,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:56,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:56,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:56,495 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) [2022-03-03 18:40:56,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:56,609 INFO L93 Difference]: Finished difference Result 3351 states and 12378 transitions. [2022-03-03 18:40:56,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:56,610 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:56,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:56,617 INFO L225 Difference]: With dead ends: 3351 [2022-03-03 18:40:56,617 INFO L226 Difference]: Without dead ends: 3066 [2022-03-03 18:40:56,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:56,617 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 [2022-03-03 18:40:56,617 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] [2022-03-03 18:40:56,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3066 states. [2022-03-03 18:40:56,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3066 to 1489. [2022-03-03 18:40:56,642 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) [2022-03-03 18:40:56,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 5877 transitions. [2022-03-03 18:40:56,645 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 5877 transitions. Word has length 25 [2022-03-03 18:40:56,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:56,645 INFO L470 AbstractCegarLoop]: Abstraction has 1489 states and 5877 transitions. [2022-03-03 18:40:56,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:56,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 5877 transitions. [2022-03-03 18:40:56,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:56,648 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:56,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:56,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-03-03 18:40:56,648 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:56,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:56,648 INFO L85 PathProgramCache]: Analyzing trace with hash -174816299, now seen corresponding path program 227 times [2022-03-03 18:40:56,648 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:56,648 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363250539] [2022-03-03 18:40:56,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:56,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:56,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:56,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:56,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363250539] [2022-03-03 18:40:56,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363250539] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:56,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:56,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:56,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729193279] [2022-03-03 18:40:56,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:56,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:56,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:56,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:56,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:56,765 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) [2022-03-03 18:40:56,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:56,878 INFO L93 Difference]: Finished difference Result 3297 states and 12203 transitions. [2022-03-03 18:40:56,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:56,879 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:56,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:56,886 INFO L225 Difference]: With dead ends: 3297 [2022-03-03 18:40:56,886 INFO L226 Difference]: Without dead ends: 3110 [2022-03-03 18:40:56,886 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 [2022-03-03 18:40:56,886 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 117 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:56,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 134 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:56,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2022-03-03 18:40:56,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 1535. [2022-03-03 18:40:56,914 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) [2022-03-03 18:40:56,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 6034 transitions. [2022-03-03 18:40:56,917 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 6034 transitions. Word has length 25 [2022-03-03 18:40:56,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:56,917 INFO L470 AbstractCegarLoop]: Abstraction has 1535 states and 6034 transitions. [2022-03-03 18:40:56,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:56,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 6034 transitions. [2022-03-03 18:40:56,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:56,920 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:56,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:56,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-03-03 18:40:56,920 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:56,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:56,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1762761399, now seen corresponding path program 228 times [2022-03-03 18:40:56,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:56,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857404497] [2022-03-03 18:40:56,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:56,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:57,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:57,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:57,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857404497] [2022-03-03 18:40:57,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857404497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:57,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:57,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:57,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472861069] [2022-03-03 18:40:57,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:57,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:57,044 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:57,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:57,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:57,044 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) [2022-03-03 18:40:57,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:57,155 INFO L93 Difference]: Finished difference Result 3332 states and 12292 transitions. [2022-03-03 18:40:57,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:57,156 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 [2022-03-03 18:40:57,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:57,163 INFO L225 Difference]: With dead ends: 3332 [2022-03-03 18:40:57,163 INFO L226 Difference]: Without dead ends: 3025 [2022-03-03 18:40:57,163 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 [2022-03-03 18:40:57,163 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 113 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:57,163 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] [2022-03-03 18:40:57,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2022-03-03 18:40:57,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 1450. [2022-03-03 18:40:57,188 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) [2022-03-03 18:40:57,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 5752 transitions. [2022-03-03 18:40:57,191 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 5752 transitions. Word has length 25 [2022-03-03 18:40:57,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:57,192 INFO L470 AbstractCegarLoop]: Abstraction has 1450 states and 5752 transitions. [2022-03-03 18:40:57,192 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) [2022-03-03 18:40:57,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 5752 transitions. [2022-03-03 18:40:57,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:57,194 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:57,194 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] [2022-03-03 18:40:57,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-03-03 18:40:57,194 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:57,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:57,194 INFO L85 PathProgramCache]: Analyzing trace with hash -116976427, now seen corresponding path program 229 times [2022-03-03 18:40:57,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:57,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773051691] [2022-03-03 18:40:57,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:57,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:57,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:57,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:57,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773051691] [2022-03-03 18:40:57,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773051691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:57,314 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:57,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:57,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474030799] [2022-03-03 18:40:57,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:57,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:57,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:57,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:57,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:57,315 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) [2022-03-03 18:40:57,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:57,431 INFO L93 Difference]: Finished difference Result 3197 states and 11876 transitions. [2022-03-03 18:40:57,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:57,431 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:57,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:57,438 INFO L225 Difference]: With dead ends: 3197 [2022-03-03 18:40:57,438 INFO L226 Difference]: Without dead ends: 3008 [2022-03-03 18:40:57,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:57,438 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 113 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:57,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 140 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:57,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2022-03-03 18:40:57,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 1502. [2022-03-03 18:40:57,465 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) [2022-03-03 18:40:57,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 5948 transitions. [2022-03-03 18:40:57,468 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 5948 transitions. Word has length 25 [2022-03-03 18:40:57,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:57,468 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 5948 transitions. [2022-03-03 18:40:57,469 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) [2022-03-03 18:40:57,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 5948 transitions. [2022-03-03 18:40:57,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:57,471 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:57,471 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] [2022-03-03 18:40:57,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-03-03 18:40:57,471 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:57,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:57,471 INFO L85 PathProgramCache]: Analyzing trace with hash 438811861, now seen corresponding path program 230 times [2022-03-03 18:40:57,471 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:57,471 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855760653] [2022-03-03 18:40:57,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:57,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:57,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:57,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:57,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855760653] [2022-03-03 18:40:57,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855760653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:57,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:57,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:57,593 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147657884] [2022-03-03 18:40:57,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:57,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:57,593 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:57,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:57,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:57,593 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) [2022-03-03 18:40:57,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:57,722 INFO L93 Difference]: Finished difference Result 3183 states and 11807 transitions. [2022-03-03 18:40:57,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:57,722 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:57,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:57,730 INFO L225 Difference]: With dead ends: 3183 [2022-03-03 18:40:57,730 INFO L226 Difference]: Without dead ends: 2984 [2022-03-03 18:40:57,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:57,731 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 [2022-03-03 18:40:57,731 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] [2022-03-03 18:40:57,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2022-03-03 18:40:57,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 1478. [2022-03-03 18:40:57,769 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) [2022-03-03 18:40:57,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 5860 transitions. [2022-03-03 18:40:57,773 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 5860 transitions. Word has length 25 [2022-03-03 18:40:57,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:57,773 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 5860 transitions. [2022-03-03 18:40:57,773 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) [2022-03-03 18:40:57,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 5860 transitions. [2022-03-03 18:40:57,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:57,775 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:57,775 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] [2022-03-03 18:40:57,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-03-03 18:40:57,775 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:57,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:57,776 INFO L85 PathProgramCache]: Analyzing trace with hash -734499785, now seen corresponding path program 231 times [2022-03-03 18:40:57,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:57,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440834816] [2022-03-03 18:40:57,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:57,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:57,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:57,892 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:57,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440834816] [2022-03-03 18:40:57,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440834816] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:57,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:57,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:57,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600246575] [2022-03-03 18:40:57,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:57,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:57,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:57,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:57,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:57,893 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) [2022-03-03 18:40:58,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:58,031 INFO L93 Difference]: Finished difference Result 3220 states and 11923 transitions. [2022-03-03 18:40:58,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:58,031 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 [2022-03-03 18:40:58,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:58,039 INFO L225 Difference]: With dead ends: 3220 [2022-03-03 18:40:58,039 INFO L226 Difference]: Without dead ends: 3031 [2022-03-03 18:40:58,039 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 [2022-03-03 18:40:58,039 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 [2022-03-03 18:40:58,039 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] [2022-03-03 18:40:58,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3031 states. [2022-03-03 18:40:58,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3031 to 1541. [2022-03-03 18:40:58,068 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) [2022-03-03 18:40:58,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 6067 transitions. [2022-03-03 18:40:58,072 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 6067 transitions. Word has length 25 [2022-03-03 18:40:58,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:58,072 INFO L470 AbstractCegarLoop]: Abstraction has 1541 states and 6067 transitions. [2022-03-03 18:40:58,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:58,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 6067 transitions. [2022-03-03 18:40:58,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:58,075 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:58,075 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] [2022-03-03 18:40:58,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-03-03 18:40:58,075 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:58,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:58,075 INFO L85 PathProgramCache]: Analyzing trace with hash 549002453, now seen corresponding path program 232 times [2022-03-03 18:40:58,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:58,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417650562] [2022-03-03 18:40:58,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:58,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:58,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:58,202 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:58,202 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417650562] [2022-03-03 18:40:58,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417650562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:58,202 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:58,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:58,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174098167] [2022-03-03 18:40:58,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:58,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:58,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:58,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:58,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:58,203 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) [2022-03-03 18:40:58,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:58,313 INFO L93 Difference]: Finished difference Result 3253 states and 12006 transitions. [2022-03-03 18:40:58,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:58,313 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:58,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:58,320 INFO L225 Difference]: With dead ends: 3253 [2022-03-03 18:40:58,321 INFO L226 Difference]: Without dead ends: 2968 [2022-03-03 18:40:58,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:58,321 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 [2022-03-03 18:40:58,321 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] [2022-03-03 18:40:58,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2022-03-03 18:40:58,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 1478. [2022-03-03 18:40:58,348 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) [2022-03-03 18:40:58,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 5832 transitions. [2022-03-03 18:40:58,351 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 5832 transitions. Word has length 25 [2022-03-03 18:40:58,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:58,351 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 5832 transitions. [2022-03-03 18:40:58,351 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) [2022-03-03 18:40:58,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 5832 transitions. [2022-03-03 18:40:58,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:58,353 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:58,353 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] [2022-03-03 18:40:58,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-03-03 18:40:58,354 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:58,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:58,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1097788203, now seen corresponding path program 233 times [2022-03-03 18:40:58,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:58,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537038143] [2022-03-03 18:40:58,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:58,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:58,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:58,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:58,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537038143] [2022-03-03 18:40:58,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537038143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:58,472 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:58,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:58,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974519328] [2022-03-03 18:40:58,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:58,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:58,473 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:58,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:58,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:58,473 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) [2022-03-03 18:40:58,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:58,600 INFO L93 Difference]: Finished difference Result 3169 states and 11731 transitions. [2022-03-03 18:40:58,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:58,600 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:40:58,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:58,607 INFO L225 Difference]: With dead ends: 3169 [2022-03-03 18:40:58,607 INFO L226 Difference]: Without dead ends: 2994 [2022-03-03 18:40:58,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:58,607 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 [2022-03-03 18:40:58,607 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] [2022-03-03 18:40:58,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2022-03-03 18:40:58,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 1518. [2022-03-03 18:40:58,632 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) [2022-03-03 18:40:58,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 5972 transitions. [2022-03-03 18:40:58,636 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 5972 transitions. Word has length 25 [2022-03-03 18:40:58,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:58,636 INFO L470 AbstractCegarLoop]: Abstraction has 1518 states and 5972 transitions. [2022-03-03 18:40:58,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:58,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 5972 transitions. [2022-03-03 18:40:58,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:58,638 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:58,638 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] [2022-03-03 18:40:58,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-03-03 18:40:58,638 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:58,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:58,638 INFO L85 PathProgramCache]: Analyzing trace with hash -879436617, now seen corresponding path program 234 times [2022-03-03 18:40:58,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:58,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114782408] [2022-03-03 18:40:58,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:58,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:58,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:58,759 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:58,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114782408] [2022-03-03 18:40:58,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114782408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:58,759 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:58,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:58,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268698869] [2022-03-03 18:40:58,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:58,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:58,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:58,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:58,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:58,760 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) [2022-03-03 18:40:58,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:58,887 INFO L93 Difference]: Finished difference Result 3121 states and 11531 transitions. [2022-03-03 18:40:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:58,887 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 [2022-03-03 18:40:58,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:58,894 INFO L225 Difference]: With dead ends: 3121 [2022-03-03 18:40:58,894 INFO L226 Difference]: Without dead ends: 2831 [2022-03-03 18:40:58,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:58,894 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 [2022-03-03 18:40:58,894 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] [2022-03-03 18:40:58,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2022-03-03 18:40:58,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 1450. [2022-03-03 18:40:58,919 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) [2022-03-03 18:40:58,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 5738 transitions. [2022-03-03 18:40:58,922 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 5738 transitions. Word has length 25 [2022-03-03 18:40:58,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:58,922 INFO L470 AbstractCegarLoop]: Abstraction has 1450 states and 5738 transitions. [2022-03-03 18:40:58,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:58,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 5738 transitions. [2022-03-03 18:40:58,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:58,924 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:58,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:58,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-03-03 18:40:58,924 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:58,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:58,924 INFO L85 PathProgramCache]: Analyzing trace with hash 855420083, now seen corresponding path program 235 times [2022-03-03 18:40:58,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:58,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046020394] [2022-03-03 18:40:58,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:58,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:59,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:59,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:59,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046020394] [2022-03-03 18:40:59,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046020394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:59,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:59,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:59,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166128827] [2022-03-03 18:40:59,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:59,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:59,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:59,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:59,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:59,043 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) [2022-03-03 18:40:59,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:59,157 INFO L93 Difference]: Finished difference Result 3166 states and 11768 transitions. [2022-03-03 18:40:59,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:59,157 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 [2022-03-03 18:40:59,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:59,165 INFO L225 Difference]: With dead ends: 3166 [2022-03-03 18:40:59,165 INFO L226 Difference]: Without dead ends: 2979 [2022-03-03 18:40:59,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:59,165 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 110 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:59,165 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] [2022-03-03 18:40:59,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2022-03-03 18:40:59,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 1494. [2022-03-03 18:40:59,194 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) [2022-03-03 18:40:59,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 5906 transitions. [2022-03-03 18:40:59,197 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 5906 transitions. Word has length 25 [2022-03-03 18:40:59,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:59,197 INFO L470 AbstractCegarLoop]: Abstraction has 1494 states and 5906 transitions. [2022-03-03 18:40:59,197 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) [2022-03-03 18:40:59,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 5906 transitions. [2022-03-03 18:40:59,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:59,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:59,200 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] [2022-03-03 18:40:59,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-03-03 18:40:59,200 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:59,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:59,200 INFO L85 PathProgramCache]: Analyzing trace with hash 648612117, now seen corresponding path program 236 times [2022-03-03 18:40:59,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:59,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995143966] [2022-03-03 18:40:59,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:59,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:59,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:59,317 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:59,317 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995143966] [2022-03-03 18:40:59,317 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995143966] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:59,317 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:59,317 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:59,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394235327] [2022-03-03 18:40:59,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:59,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:59,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:59,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:59,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:59,318 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) [2022-03-03 18:40:59,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:59,434 INFO L93 Difference]: Finished difference Result 3154 states and 11704 transitions. [2022-03-03 18:40:59,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:59,435 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 [2022-03-03 18:40:59,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:59,441 INFO L225 Difference]: With dead ends: 3154 [2022-03-03 18:40:59,442 INFO L226 Difference]: Without dead ends: 2955 [2022-03-03 18:40:59,442 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 [2022-03-03 18:40:59,442 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 105 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:59,442 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] [2022-03-03 18:40:59,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states. [2022-03-03 18:40:59,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 1470. [2022-03-03 18:40:59,469 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) [2022-03-03 18:40:59,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5818 transitions. [2022-03-03 18:40:59,493 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5818 transitions. Word has length 25 [2022-03-03 18:40:59,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:59,493 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5818 transitions. [2022-03-03 18:40:59,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:59,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5818 transitions. [2022-03-03 18:40:59,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:59,496 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:59,496 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] [2022-03-03 18:40:59,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-03-03 18:40:59,496 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:59,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:59,497 INFO L85 PathProgramCache]: Analyzing trace with hash 237896725, now seen corresponding path program 237 times [2022-03-03 18:40:59,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:59,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697872409] [2022-03-03 18:40:59,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:59,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:59,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:59,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:59,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697872409] [2022-03-03 18:40:59,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697872409] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:59,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:59,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:59,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937844803] [2022-03-03 18:40:59,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:59,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:59,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:59,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:59,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:59,613 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) [2022-03-03 18:40:59,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:59,734 INFO L93 Difference]: Finished difference Result 3189 states and 11815 transitions. [2022-03-03 18:40:59,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:40:59,735 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 [2022-03-03 18:40:59,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:59,742 INFO L225 Difference]: With dead ends: 3189 [2022-03-03 18:40:59,742 INFO L226 Difference]: Without dead ends: 3002 [2022-03-03 18:40:59,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:40:59,742 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 115 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:40:59,742 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] [2022-03-03 18:40:59,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states. [2022-03-03 18:40:59,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 1516. [2022-03-03 18:40:59,769 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) [2022-03-03 18:40:59,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 5975 transitions. [2022-03-03 18:40:59,773 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 5975 transitions. Word has length 25 [2022-03-03 18:40:59,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:59,773 INFO L470 AbstractCegarLoop]: Abstraction has 1516 states and 5975 transitions. [2022-03-03 18:40:59,773 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) [2022-03-03 18:40:59,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 5975 transitions. [2022-03-03 18:40:59,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:40:59,775 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:59,775 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] [2022-03-03 18:40:59,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-03-03 18:40:59,775 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:40:59,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:59,776 INFO L85 PathProgramCache]: Analyzing trace with hash -280202347, now seen corresponding path program 238 times [2022-03-03 18:40:59,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:59,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771185884] [2022-03-03 18:40:59,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:59,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:59,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:59,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:59,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771185884] [2022-03-03 18:40:59,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771185884] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:59,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:59,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:40:59,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712668131] [2022-03-03 18:40:59,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:59,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:40:59,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:59,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:40:59,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:40:59,892 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) [2022-03-03 18:41:00,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:00,011 INFO L93 Difference]: Finished difference Result 3224 states and 11904 transitions. [2022-03-03 18:41:00,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:00,011 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 [2022-03-03 18:41:00,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:00,018 INFO L225 Difference]: With dead ends: 3224 [2022-03-03 18:41:00,018 INFO L226 Difference]: Without dead ends: 2956 [2022-03-03 18:41:00,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:00,018 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 [2022-03-03 18:41:00,018 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] [2022-03-03 18:41:00,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2022-03-03 18:41:00,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1470. [2022-03-03 18:41:00,045 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) [2022-03-03 18:41:00,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5798 transitions. [2022-03-03 18:41:00,048 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5798 transitions. Word has length 25 [2022-03-03 18:41:00,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:00,048 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5798 transitions. [2022-03-03 18:41:00,048 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) [2022-03-03 18:41:00,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5798 transitions. [2022-03-03 18:41:00,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:00,051 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:00,051 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] [2022-03-03 18:41:00,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-03-03 18:41:00,051 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:00,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:00,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1355026569, now seen corresponding path program 239 times [2022-03-03 18:41:00,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:00,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605560767] [2022-03-03 18:41:00,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:00,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:00,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:00,171 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:00,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605560767] [2022-03-03 18:41:00,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605560767] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:00,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:00,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:00,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733410211] [2022-03-03 18:41:00,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:00,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:00,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:00,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:00,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:00,172 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) [2022-03-03 18:41:00,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:00,284 INFO L93 Difference]: Finished difference Result 3159 states and 11692 transitions. [2022-03-03 18:41:00,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:00,284 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:00,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:00,291 INFO L225 Difference]: With dead ends: 3159 [2022-03-03 18:41:00,291 INFO L226 Difference]: Without dead ends: 2984 [2022-03-03 18:41:00,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:00,292 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 112 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:00,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 135 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:00,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2022-03-03 18:41:00,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 1510. [2022-03-03 18:41:00,318 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) [2022-03-03 18:41:00,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 5938 transitions. [2022-03-03 18:41:00,321 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 5938 transitions. Word has length 25 [2022-03-03 18:41:00,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:00,321 INFO L470 AbstractCegarLoop]: Abstraction has 1510 states and 5938 transitions. [2022-03-03 18:41:00,321 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) [2022-03-03 18:41:00,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 5938 transitions. [2022-03-03 18:41:00,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:00,323 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:00,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:00,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-03-03 18:41:00,323 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:00,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:00,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1118905301, now seen corresponding path program 240 times [2022-03-03 18:41:00,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:00,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329569484] [2022-03-03 18:41:00,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:00,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:00,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:00,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:00,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329569484] [2022-03-03 18:41:00,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329569484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:00,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:00,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:00,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860893314] [2022-03-03 18:41:00,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:00,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:00,441 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:00,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:00,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:00,441 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) [2022-03-03 18:41:00,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:00,558 INFO L93 Difference]: Finished difference Result 3111 states and 11492 transitions. [2022-03-03 18:41:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:00,559 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 [2022-03-03 18:41:00,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:00,564 INFO L225 Difference]: With dead ends: 3111 [2022-03-03 18:41:00,564 INFO L226 Difference]: Without dead ends: 2803 [2022-03-03 18:41:00,564 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 [2022-03-03 18:41:00,564 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 [2022-03-03 18:41:00,564 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] [2022-03-03 18:41:00,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2022-03-03 18:41:00,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 1424. [2022-03-03 18:41:00,586 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) [2022-03-03 18:41:00,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 5675 transitions. [2022-03-03 18:41:00,589 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 5675 transitions. Word has length 25 [2022-03-03 18:41:00,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:00,589 INFO L470 AbstractCegarLoop]: Abstraction has 1424 states and 5675 transitions. [2022-03-03 18:41:00,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:00,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 5675 transitions. [2022-03-03 18:41:00,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:00,592 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:00,592 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] [2022-03-03 18:41:00,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-03-03 18:41:00,592 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:00,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:00,592 INFO L85 PathProgramCache]: Analyzing trace with hash 209646935, now seen corresponding path program 241 times [2022-03-03 18:41:00,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:00,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72940305] [2022-03-03 18:41:00,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:00,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:00,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:00,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:00,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72940305] [2022-03-03 18:41:00,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72940305] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:00,709 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:00,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:00,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699454042] [2022-03-03 18:41:00,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:00,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:00,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:00,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:00,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:00,709 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) [2022-03-03 18:41:00,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:00,816 INFO L93 Difference]: Finished difference Result 3076 states and 11383 transitions. [2022-03-03 18:41:00,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:00,816 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 [2022-03-03 18:41:00,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:00,822 INFO L225 Difference]: With dead ends: 3076 [2022-03-03 18:41:00,822 INFO L226 Difference]: Without dead ends: 2917 [2022-03-03 18:41:00,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:00,823 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 127 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:00,823 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] [2022-03-03 18:41:00,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2022-03-03 18:41:00,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 1480. [2022-03-03 18:41:00,848 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) [2022-03-03 18:41:00,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 5887 transitions. [2022-03-03 18:41:00,851 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 5887 transitions. Word has length 25 [2022-03-03 18:41:00,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:00,851 INFO L470 AbstractCegarLoop]: Abstraction has 1480 states and 5887 transitions. [2022-03-03 18:41:00,851 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) [2022-03-03 18:41:00,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 5887 transitions. [2022-03-03 18:41:00,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:00,853 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:00,853 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] [2022-03-03 18:41:00,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-03-03 18:41:00,854 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:00,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:00,854 INFO L85 PathProgramCache]: Analyzing trace with hash -798651049, now seen corresponding path program 242 times [2022-03-03 18:41:00,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:00,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406902947] [2022-03-03 18:41:00,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:00,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:00,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:00,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:00,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406902947] [2022-03-03 18:41:00,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406902947] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:00,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:00,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:00,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123668147] [2022-03-03 18:41:00,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:00,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:00,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:00,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:00,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:00,982 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) [2022-03-03 18:41:01,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:01,091 INFO L93 Difference]: Finished difference Result 3139 states and 11590 transitions. [2022-03-03 18:41:01,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:01,091 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 [2022-03-03 18:41:01,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:01,098 INFO L225 Difference]: With dead ends: 3139 [2022-03-03 18:41:01,098 INFO L226 Difference]: Without dead ends: 2885 [2022-03-03 18:41:01,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:01,098 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 [2022-03-03 18:41:01,098 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] [2022-03-03 18:41:01,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2022-03-03 18:41:01,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 1448. [2022-03-03 18:41:01,122 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) [2022-03-03 18:41:01,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5759 transitions. [2022-03-03 18:41:01,125 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5759 transitions. Word has length 25 [2022-03-03 18:41:01,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:01,125 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5759 transitions. [2022-03-03 18:41:01,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:01,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5759 transitions. [2022-03-03 18:41:01,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:01,128 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:01,128 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] [2022-03-03 18:41:01,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-03-03 18:41:01,128 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:01,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:01,128 INFO L85 PathProgramCache]: Analyzing trace with hash 248261619, now seen corresponding path program 243 times [2022-03-03 18:41:01,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:01,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917446759] [2022-03-03 18:41:01,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:01,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:01,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:01,247 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:01,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917446759] [2022-03-03 18:41:01,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917446759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:01,247 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:01,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:01,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439702992] [2022-03-03 18:41:01,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:01,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:01,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:01,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:01,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:01,248 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) [2022-03-03 18:41:01,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:01,362 INFO L93 Difference]: Finished difference Result 3027 states and 11189 transitions. [2022-03-03 18:41:01,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:01,362 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 [2022-03-03 18:41:01,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:01,369 INFO L225 Difference]: With dead ends: 3027 [2022-03-03 18:41:01,369 INFO L226 Difference]: Without dead ends: 2868 [2022-03-03 18:41:01,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:01,370 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 [2022-03-03 18:41:01,370 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] [2022-03-03 18:41:01,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2868 states. [2022-03-03 18:41:01,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2868 to 1464. [2022-03-03 18:41:01,394 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) [2022-03-03 18:41:01,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5807 transitions. [2022-03-03 18:41:01,398 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5807 transitions. Word has length 25 [2022-03-03 18:41:01,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:01,398 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5807 transitions. [2022-03-03 18:41:01,398 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) [2022-03-03 18:41:01,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5807 transitions. [2022-03-03 18:41:01,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:01,400 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:01,400 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] [2022-03-03 18:41:01,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-03-03 18:41:01,400 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:01,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:01,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1341673131, now seen corresponding path program 244 times [2022-03-03 18:41:01,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:01,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602112659] [2022-03-03 18:41:01,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:01,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:01,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:01,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:01,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602112659] [2022-03-03 18:41:01,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602112659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:01,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:01,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:01,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170696252] [2022-03-03 18:41:01,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:01,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:01,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:01,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:01,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:01,518 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) [2022-03-03 18:41:01,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:01,642 INFO L93 Difference]: Finished difference Result 3057 states and 11282 transitions. [2022-03-03 18:41:01,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:01,642 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 [2022-03-03 18:41:01,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:01,649 INFO L225 Difference]: With dead ends: 3057 [2022-03-03 18:41:01,649 INFO L226 Difference]: Without dead ends: 2852 [2022-03-03 18:41:01,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:01,649 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 [2022-03-03 18:41:01,649 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] [2022-03-03 18:41:01,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2022-03-03 18:41:01,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 1448. [2022-03-03 18:41:01,676 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) [2022-03-03 18:41:01,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5751 transitions. [2022-03-03 18:41:01,679 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5751 transitions. Word has length 25 [2022-03-03 18:41:01,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:01,679 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5751 transitions. [2022-03-03 18:41:01,679 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) [2022-03-03 18:41:01,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5751 transitions. [2022-03-03 18:41:01,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:01,682 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:01,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:01,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-03-03 18:41:01,682 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:01,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:01,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1979836617, now seen corresponding path program 245 times [2022-03-03 18:41:01,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:01,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161171925] [2022-03-03 18:41:01,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:01,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:01,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:01,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:01,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161171925] [2022-03-03 18:41:01,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161171925] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:01,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:01,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:01,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539041518] [2022-03-03 18:41:01,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:01,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:01,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:01,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:01,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:01,803 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) [2022-03-03 18:41:01,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:01,934 INFO L93 Difference]: Finished difference Result 3167 states and 11687 transitions. [2022-03-03 18:41:01,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:01,935 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:01,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:01,941 INFO L225 Difference]: With dead ends: 3167 [2022-03-03 18:41:01,941 INFO L226 Difference]: Without dead ends: 2978 [2022-03-03 18:41:01,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:01,941 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 [2022-03-03 18:41:01,941 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] [2022-03-03 18:41:01,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2022-03-03 18:41:01,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 1511. [2022-03-03 18:41:01,967 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) [2022-03-03 18:41:01,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 5958 transitions. [2022-03-03 18:41:01,970 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 5958 transitions. Word has length 25 [2022-03-03 18:41:01,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:01,971 INFO L470 AbstractCegarLoop]: Abstraction has 1511 states and 5958 transitions. [2022-03-03 18:41:01,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:01,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 5958 transitions. [2022-03-03 18:41:01,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:01,973 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:01,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:01,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-03-03 18:41:01,973 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:01,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:01,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1681783659, now seen corresponding path program 246 times [2022-03-03 18:41:01,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:01,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012983940] [2022-03-03 18:41:01,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:01,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:02,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:02,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:02,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012983940] [2022-03-03 18:41:02,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012983940] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:02,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:02,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:02,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231955509] [2022-03-03 18:41:02,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:02,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:02,094 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:02,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:02,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:02,094 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) [2022-03-03 18:41:02,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:02,218 INFO L93 Difference]: Finished difference Result 3200 states and 11770 transitions. [2022-03-03 18:41:02,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:02,219 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:02,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:02,225 INFO L225 Difference]: With dead ends: 3200 [2022-03-03 18:41:02,226 INFO L226 Difference]: Without dead ends: 2891 [2022-03-03 18:41:02,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:02,226 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 [2022-03-03 18:41:02,226 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] [2022-03-03 18:41:02,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2891 states. [2022-03-03 18:41:02,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2891 to 1424. [2022-03-03 18:41:02,251 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) [2022-03-03 18:41:02,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 5663 transitions. [2022-03-03 18:41:02,254 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 5663 transitions. Word has length 25 [2022-03-03 18:41:02,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:02,254 INFO L470 AbstractCegarLoop]: Abstraction has 1424 states and 5663 transitions. [2022-03-03 18:41:02,254 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) [2022-03-03 18:41:02,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 5663 transitions. [2022-03-03 18:41:02,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:02,256 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:02,256 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] [2022-03-03 18:41:02,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-03-03 18:41:02,257 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:02,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:02,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1764370955, now seen corresponding path program 247 times [2022-03-03 18:41:02,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:02,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051192724] [2022-03-03 18:41:02,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:02,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:02,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:02,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:02,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051192724] [2022-03-03 18:41:02,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051192724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:02,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:02,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:02,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301949021] [2022-03-03 18:41:02,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:02,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:02,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:02,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:02,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:02,375 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) [2022-03-03 18:41:02,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:02,479 INFO L93 Difference]: Finished difference Result 3043 states and 11268 transitions. [2022-03-03 18:41:02,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:02,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:02,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:02,487 INFO L225 Difference]: With dead ends: 3043 [2022-03-03 18:41:02,487 INFO L226 Difference]: Without dead ends: 2884 [2022-03-03 18:41:02,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:02,487 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 [2022-03-03 18:41:02,488 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] [2022-03-03 18:41:02,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states. [2022-03-03 18:41:02,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 1472. [2022-03-03 18:41:02,512 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) [2022-03-03 18:41:02,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5847 transitions. [2022-03-03 18:41:02,515 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5847 transitions. Word has length 25 [2022-03-03 18:41:02,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:02,516 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5847 transitions. [2022-03-03 18:41:02,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:02,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5847 transitions. [2022-03-03 18:41:02,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:02,518 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:02,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:02,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-03-03 18:41:02,518 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:02,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:02,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1522298357, now seen corresponding path program 248 times [2022-03-03 18:41:02,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:02,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621891810] [2022-03-03 18:41:02,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:02,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:02,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:02,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:02,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621891810] [2022-03-03 18:41:02,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621891810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:02,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:02,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:02,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808281193] [2022-03-03 18:41:02,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:02,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:02,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:02,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:02,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:02,642 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) [2022-03-03 18:41:02,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:02,749 INFO L93 Difference]: Finished difference Result 3106 states and 11475 transitions. [2022-03-03 18:41:02,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:02,749 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:02,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:02,755 INFO L225 Difference]: With dead ends: 3106 [2022-03-03 18:41:02,756 INFO L226 Difference]: Without dead ends: 2852 [2022-03-03 18:41:02,756 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 [2022-03-03 18:41:02,756 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 [2022-03-03 18:41:02,756 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] [2022-03-03 18:41:02,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2022-03-03 18:41:02,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 1440. [2022-03-03 18:41:02,780 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) [2022-03-03 18:41:02,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5719 transitions. [2022-03-03 18:41:02,783 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5719 transitions. Word has length 25 [2022-03-03 18:41:02,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:02,784 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5719 transitions. [2022-03-03 18:41:02,784 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) [2022-03-03 18:41:02,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5719 transitions. [2022-03-03 18:41:02,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:02,786 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:02,786 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] [2022-03-03 18:41:02,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-03-03 18:41:02,786 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:02,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:02,786 INFO L85 PathProgramCache]: Analyzing trace with hash 269418903, now seen corresponding path program 249 times [2022-03-03 18:41:02,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:02,786 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18219306] [2022-03-03 18:41:02,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:02,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:02,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:02,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:02,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18219306] [2022-03-03 18:41:02,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18219306] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:02,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:02,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:02,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335932523] [2022-03-03 18:41:02,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:02,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:02,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:02,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:02,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:02,907 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) [2022-03-03 18:41:03,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:03,010 INFO L93 Difference]: Finished difference Result 2988 states and 11057 transitions. [2022-03-03 18:41:03,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:03,010 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:03,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:03,017 INFO L225 Difference]: With dead ends: 2988 [2022-03-03 18:41:03,017 INFO L226 Difference]: Without dead ends: 2829 [2022-03-03 18:41:03,017 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 [2022-03-03 18:41:03,017 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 [2022-03-03 18:41:03,017 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] [2022-03-03 18:41:03,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2022-03-03 18:41:03,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 1456. [2022-03-03 18:41:03,057 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) [2022-03-03 18:41:03,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5767 transitions. [2022-03-03 18:41:03,060 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5767 transitions. Word has length 25 [2022-03-03 18:41:03,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:03,061 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5767 transitions. [2022-03-03 18:41:03,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:03,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5767 transitions. [2022-03-03 18:41:03,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:03,063 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:03,063 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] [2022-03-03 18:41:03,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-03-03 18:41:03,063 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:03,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:03,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1949915543, now seen corresponding path program 250 times [2022-03-03 18:41:03,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:03,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32982210] [2022-03-03 18:41:03,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:03,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:03,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:03,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:03,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32982210] [2022-03-03 18:41:03,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32982210] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:03,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:03,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:03,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727518626] [2022-03-03 18:41:03,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:03,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:03,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:03,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:03,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:03,189 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) [2022-03-03 18:41:03,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:03,307 INFO L93 Difference]: Finished difference Result 3012 states and 11133 transitions. [2022-03-03 18:41:03,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:03,307 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 [2022-03-03 18:41:03,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:03,314 INFO L225 Difference]: With dead ends: 3012 [2022-03-03 18:41:03,314 INFO L226 Difference]: Without dead ends: 2813 [2022-03-03 18:41:03,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:03,315 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 [2022-03-03 18:41:03,315 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] [2022-03-03 18:41:03,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2022-03-03 18:41:03,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 1440. [2022-03-03 18:41:03,341 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) [2022-03-03 18:41:03,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5711 transitions. [2022-03-03 18:41:03,344 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5711 transitions. Word has length 25 [2022-03-03 18:41:03,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:03,344 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5711 transitions. [2022-03-03 18:41:03,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:03,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5711 transitions. [2022-03-03 18:41:03,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:03,347 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:03,347 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] [2022-03-03 18:41:03,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-03-03 18:41:03,347 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:03,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:03,348 INFO L85 PathProgramCache]: Analyzing trace with hash -656805481, now seen corresponding path program 251 times [2022-03-03 18:41:03,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:03,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661980249] [2022-03-03 18:41:03,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:03,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:03,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:03,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:03,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661980249] [2022-03-03 18:41:03,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661980249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:03,470 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:03,470 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:03,470 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203084815] [2022-03-03 18:41:03,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:03,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:03,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:03,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:03,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:03,471 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) [2022-03-03 18:41:03,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:03,588 INFO L93 Difference]: Finished difference Result 3103 states and 11480 transitions. [2022-03-03 18:41:03,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:03,590 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 [2022-03-03 18:41:03,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:03,598 INFO L225 Difference]: With dead ends: 3103 [2022-03-03 18:41:03,598 INFO L226 Difference]: Without dead ends: 2920 [2022-03-03 18:41:03,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:03,598 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 123 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:03,598 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] [2022-03-03 18:41:03,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2022-03-03 18:41:03,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 1484. [2022-03-03 18:41:03,629 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) [2022-03-03 18:41:03,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 5863 transitions. [2022-03-03 18:41:03,632 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 5863 transitions. Word has length 25 [2022-03-03 18:41:03,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:03,632 INFO L470 AbstractCegarLoop]: Abstraction has 1484 states and 5863 transitions. [2022-03-03 18:41:03,632 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) [2022-03-03 18:41:03,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 5863 transitions. [2022-03-03 18:41:03,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:03,635 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:03,635 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] [2022-03-03 18:41:03,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-03-03 18:41:03,635 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:03,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:03,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1661137419, now seen corresponding path program 252 times [2022-03-03 18:41:03,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:03,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272859602] [2022-03-03 18:41:03,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:03,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:03,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:03,768 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:03,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272859602] [2022-03-03 18:41:03,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272859602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:03,768 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:03,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:03,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29507976] [2022-03-03 18:41:03,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:03,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:03,769 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:03,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:03,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:03,769 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) [2022-03-03 18:41:03,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:03,876 INFO L93 Difference]: Finished difference Result 3142 states and 11583 transitions. [2022-03-03 18:41:03,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:03,877 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:03,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:03,883 INFO L225 Difference]: With dead ends: 3142 [2022-03-03 18:41:03,883 INFO L226 Difference]: Without dead ends: 2860 [2022-03-03 18:41:03,883 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 [2022-03-03 18:41:03,884 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 [2022-03-03 18:41:03,884 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] [2022-03-03 18:41:03,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2860 states. [2022-03-03 18:41:03,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2860 to 1424. [2022-03-03 18:41:03,910 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) [2022-03-03 18:41:03,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 5655 transitions. [2022-03-03 18:41:03,913 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 5655 transitions. Word has length 25 [2022-03-03 18:41:03,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:03,913 INFO L470 AbstractCegarLoop]: Abstraction has 1424 states and 5655 transitions. [2022-03-03 18:41:03,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:03,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 5655 transitions. [2022-03-03 18:41:03,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:03,915 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:03,915 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] [2022-03-03 18:41:03,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-03-03 18:41:03,915 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:03,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:03,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1069767471, now seen corresponding path program 253 times [2022-03-03 18:41:03,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:03,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315191073] [2022-03-03 18:41:03,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:03,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:04,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:04,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:04,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315191073] [2022-03-03 18:41:04,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315191073] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:04,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:04,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:04,031 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538100494] [2022-03-03 18:41:04,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:04,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:04,031 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:04,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:04,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:04,032 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) [2022-03-03 18:41:04,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:04,130 INFO L93 Difference]: Finished difference Result 2921 states and 10804 transitions. [2022-03-03 18:41:04,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:04,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:04,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:04,137 INFO L225 Difference]: With dead ends: 2921 [2022-03-03 18:41:04,137 INFO L226 Difference]: Without dead ends: 2762 [2022-03-03 18:41:04,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:04,137 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 [2022-03-03 18:41:04,137 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] [2022-03-03 18:41:04,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2022-03-03 18:41:04,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 1448. [2022-03-03 18:41:04,163 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) [2022-03-03 18:41:04,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5739 transitions. [2022-03-03 18:41:04,167 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5739 transitions. Word has length 25 [2022-03-03 18:41:04,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:04,167 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5739 transitions. [2022-03-03 18:41:04,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:04,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5739 transitions. [2022-03-03 18:41:04,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:04,169 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:04,169 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] [2022-03-03 18:41:04,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-03-03 18:41:04,169 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:04,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:04,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1635265075, now seen corresponding path program 254 times [2022-03-03 18:41:04,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:04,169 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790383317] [2022-03-03 18:41:04,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:04,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:04,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:04,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:04,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790383317] [2022-03-03 18:41:04,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790383317] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:04,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:04,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:04,289 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771243196] [2022-03-03 18:41:04,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:04,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:04,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:04,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:04,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:04,290 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) [2022-03-03 18:41:04,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:04,409 INFO L93 Difference]: Finished difference Result 2951 states and 10897 transitions. [2022-03-03 18:41:04,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:04,410 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:04,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:04,416 INFO L225 Difference]: With dead ends: 2951 [2022-03-03 18:41:04,416 INFO L226 Difference]: Without dead ends: 2746 [2022-03-03 18:41:04,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:04,417 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 [2022-03-03 18:41:04,417 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] [2022-03-03 18:41:04,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2022-03-03 18:41:04,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 1432. [2022-03-03 18:41:04,443 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) [2022-03-03 18:41:04,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5683 transitions. [2022-03-03 18:41:04,446 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5683 transitions. Word has length 25 [2022-03-03 18:41:04,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:04,446 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5683 transitions. [2022-03-03 18:41:04,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:04,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5683 transitions. [2022-03-03 18:41:04,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:04,448 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:04,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:04,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-03-03 18:41:04,448 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:04,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:04,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1276575437, now seen corresponding path program 255 times [2022-03-03 18:41:04,448 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:04,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004276388] [2022-03-03 18:41:04,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:04,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:04,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:04,566 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:04,566 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004276388] [2022-03-03 18:41:04,566 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004276388] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:04,566 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:04,566 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:04,566 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871026853] [2022-03-03 18:41:04,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:04,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:04,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:04,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:04,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:04,567 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) [2022-03-03 18:41:04,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:04,675 INFO L93 Difference]: Finished difference Result 2915 states and 10779 transitions. [2022-03-03 18:41:04,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:04,675 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 [2022-03-03 18:41:04,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:04,682 INFO L225 Difference]: With dead ends: 2915 [2022-03-03 18:41:04,682 INFO L226 Difference]: Without dead ends: 2756 [2022-03-03 18:41:04,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:04,682 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 109 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:04,682 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] [2022-03-03 18:41:04,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2022-03-03 18:41:04,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 1448. [2022-03-03 18:41:04,706 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) [2022-03-03 18:41:04,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5731 transitions. [2022-03-03 18:41:04,709 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5731 transitions. Word has length 25 [2022-03-03 18:41:04,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:04,709 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5731 transitions. [2022-03-03 18:41:04,709 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) [2022-03-03 18:41:04,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5731 transitions. [2022-03-03 18:41:04,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:04,711 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:04,711 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] [2022-03-03 18:41:04,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-03-03 18:41:04,711 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:04,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:04,712 INFO L85 PathProgramCache]: Analyzing trace with hash 403921203, now seen corresponding path program 256 times [2022-03-03 18:41:04,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:04,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756472589] [2022-03-03 18:41:04,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:04,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:04,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:04,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:04,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756472589] [2022-03-03 18:41:04,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756472589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:04,854 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:04,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:04,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558652020] [2022-03-03 18:41:04,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:04,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:04,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:04,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:04,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:04,855 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) [2022-03-03 18:41:05,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:05,004 INFO L93 Difference]: Finished difference Result 2939 states and 10855 transitions. [2022-03-03 18:41:05,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:05,004 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 [2022-03-03 18:41:05,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:05,011 INFO L225 Difference]: With dead ends: 2939 [2022-03-03 18:41:05,011 INFO L226 Difference]: Without dead ends: 2740 [2022-03-03 18:41:05,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:05,011 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 [2022-03-03 18:41:05,011 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] [2022-03-03 18:41:05,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2022-03-03 18:41:05,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 1432. [2022-03-03 18:41:05,035 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) [2022-03-03 18:41:05,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5675 transitions. [2022-03-03 18:41:05,039 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5675 transitions. Word has length 25 [2022-03-03 18:41:05,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:05,039 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5675 transitions. [2022-03-03 18:41:05,039 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) [2022-03-03 18:41:05,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5675 transitions. [2022-03-03 18:41:05,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:05,041 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:05,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:05,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-03-03 18:41:05,041 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:05,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:05,041 INFO L85 PathProgramCache]: Analyzing trace with hash 140586517, now seen corresponding path program 257 times [2022-03-03 18:41:05,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:05,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304934813] [2022-03-03 18:41:05,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:05,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:05,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:05,154 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:05,154 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304934813] [2022-03-03 18:41:05,154 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304934813] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:05,154 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:05,154 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:05,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719742731] [2022-03-03 18:41:05,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:05,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:05,154 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:05,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:05,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:05,155 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) [2022-03-03 18:41:05,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:05,275 INFO L93 Difference]: Finished difference Result 2987 states and 11041 transitions. [2022-03-03 18:41:05,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:05,275 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 [2022-03-03 18:41:05,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:05,282 INFO L225 Difference]: With dead ends: 2987 [2022-03-03 18:41:05,282 INFO L226 Difference]: Without dead ends: 2798 [2022-03-03 18:41:05,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:05,282 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 [2022-03-03 18:41:05,282 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] [2022-03-03 18:41:05,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2022-03-03 18:41:05,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 1460. [2022-03-03 18:41:05,309 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) [2022-03-03 18:41:05,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5763 transitions. [2022-03-03 18:41:05,312 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5763 transitions. Word has length 25 [2022-03-03 18:41:05,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:05,312 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5763 transitions. [2022-03-03 18:41:05,313 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) [2022-03-03 18:41:05,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5763 transitions. [2022-03-03 18:41:05,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:05,315 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:05,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:05,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-03-03 18:41:05,315 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:05,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:05,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1251558029, now seen corresponding path program 258 times [2022-03-03 18:41:05,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:05,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564027754] [2022-03-03 18:41:05,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:05,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:05,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:05,429 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:05,430 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564027754] [2022-03-03 18:41:05,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564027754] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:05,430 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:05,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:05,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127933439] [2022-03-03 18:41:05,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:05,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:05,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:05,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:05,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:05,430 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) [2022-03-03 18:41:05,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:05,560 INFO L93 Difference]: Finished difference Result 2981 states and 10996 transitions. [2022-03-03 18:41:05,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:05,560 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:05,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:05,566 INFO L225 Difference]: With dead ends: 2981 [2022-03-03 18:41:05,567 INFO L226 Difference]: Without dead ends: 2762 [2022-03-03 18:41:05,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:05,567 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 [2022-03-03 18:41:05,567 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] [2022-03-03 18:41:05,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2022-03-03 18:41:05,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 1424. [2022-03-03 18:41:05,592 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) [2022-03-03 18:41:05,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 5651 transitions. [2022-03-03 18:41:05,595 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 5651 transitions. Word has length 25 [2022-03-03 18:41:05,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:05,595 INFO L470 AbstractCegarLoop]: Abstraction has 1424 states and 5651 transitions. [2022-03-03 18:41:05,595 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) [2022-03-03 18:41:05,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 5651 transitions. [2022-03-03 18:41:05,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:05,597 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:05,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:05,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-03-03 18:41:05,597 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:05,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:05,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1045799799, now seen corresponding path program 259 times [2022-03-03 18:41:05,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:05,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252419329] [2022-03-03 18:41:05,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:05,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:05,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:05,715 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:05,715 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252419329] [2022-03-03 18:41:05,715 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252419329] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:05,715 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:05,715 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:05,715 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822237564] [2022-03-03 18:41:05,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:05,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:05,715 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:05,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:05,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:05,716 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) [2022-03-03 18:41:05,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:05,831 INFO L93 Difference]: Finished difference Result 3147 states and 11659 transitions. [2022-03-03 18:41:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:05,831 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 [2022-03-03 18:41:05,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:05,839 INFO L225 Difference]: With dead ends: 3147 [2022-03-03 18:41:05,839 INFO L226 Difference]: Without dead ends: 2958 [2022-03-03 18:41:05,839 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 [2022-03-03 18:41:05,839 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:05,839 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] [2022-03-03 18:41:05,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2022-03-03 18:41:05,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 1482. [2022-03-03 18:41:05,866 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) [2022-03-03 18:41:05,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5868 transitions. [2022-03-03 18:41:05,870 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5868 transitions. Word has length 25 [2022-03-03 18:41:05,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:05,870 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5868 transitions. [2022-03-03 18:41:05,870 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) [2022-03-03 18:41:05,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5868 transitions. [2022-03-03 18:41:05,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:05,872 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:05,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:05,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-03-03 18:41:05,872 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:05,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:05,873 INFO L85 PathProgramCache]: Analyzing trace with hash -346344747, now seen corresponding path program 260 times [2022-03-03 18:41:05,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:05,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230459748] [2022-03-03 18:41:05,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:05,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:05,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:05,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:05,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230459748] [2022-03-03 18:41:05,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230459748] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:05,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:05,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:05,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49985332] [2022-03-03 18:41:05,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:05,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:05,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:05,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:05,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:05,989 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) [2022-03-03 18:41:06,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:06,100 INFO L93 Difference]: Finished difference Result 3141 states and 11614 transitions. [2022-03-03 18:41:06,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:06,100 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:06,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:06,107 INFO L225 Difference]: With dead ends: 3141 [2022-03-03 18:41:06,107 INFO L226 Difference]: Without dead ends: 2930 [2022-03-03 18:41:06,107 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 [2022-03-03 18:41:06,107 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 109 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:06,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 144 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:06,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2022-03-03 18:41:06,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1454. [2022-03-03 18:41:06,133 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) [2022-03-03 18:41:06,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 5766 transitions. [2022-03-03 18:41:06,136 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 5766 transitions. Word has length 25 [2022-03-03 18:41:06,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:06,136 INFO L470 AbstractCegarLoop]: Abstraction has 1454 states and 5766 transitions. [2022-03-03 18:41:06,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:06,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 5766 transitions. [2022-03-03 18:41:06,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:06,138 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:06,138 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] [2022-03-03 18:41:06,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-03-03 18:41:06,138 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:06,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:06,139 INFO L85 PathProgramCache]: Analyzing trace with hash -2044518315, now seen corresponding path program 261 times [2022-03-03 18:41:06,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:06,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540611390] [2022-03-03 18:41:06,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:06,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:06,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:06,260 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:06,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540611390] [2022-03-03 18:41:06,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540611390] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:06,260 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:06,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:06,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904681813] [2022-03-03 18:41:06,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:06,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:06,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:06,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:06,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:06,261 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) [2022-03-03 18:41:06,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:06,376 INFO L93 Difference]: Finished difference Result 3221 states and 11898 transitions. [2022-03-03 18:41:06,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:06,376 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 [2022-03-03 18:41:06,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:06,383 INFO L225 Difference]: With dead ends: 3221 [2022-03-03 18:41:06,384 INFO L226 Difference]: Without dead ends: 3032 [2022-03-03 18:41:06,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:06,384 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 124 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:06,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 137 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:06,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2022-03-03 18:41:06,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 1517. [2022-03-03 18:41:06,411 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) [2022-03-03 18:41:06,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 5973 transitions. [2022-03-03 18:41:06,415 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 5973 transitions. Word has length 25 [2022-03-03 18:41:06,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:06,415 INFO L470 AbstractCegarLoop]: Abstraction has 1517 states and 5973 transitions. [2022-03-03 18:41:06,415 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) [2022-03-03 18:41:06,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 5973 transitions. [2022-03-03 18:41:06,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:06,417 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:06,417 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] [2022-03-03 18:41:06,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-03-03 18:41:06,417 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:06,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:06,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1312436011, now seen corresponding path program 262 times [2022-03-03 18:41:06,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:06,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621716824] [2022-03-03 18:41:06,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:06,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:06,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:06,539 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:06,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621716824] [2022-03-03 18:41:06,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621716824] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:06,540 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:06,540 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:06,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982406428] [2022-03-03 18:41:06,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:06,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:06,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:06,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:06,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:06,540 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) [2022-03-03 18:41:06,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:06,647 INFO L93 Difference]: Finished difference Result 3254 states and 11981 transitions. [2022-03-03 18:41:06,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:06,647 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:06,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:06,654 INFO L225 Difference]: With dead ends: 3254 [2022-03-03 18:41:06,654 INFO L226 Difference]: Without dead ends: 2969 [2022-03-03 18:41:06,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:06,654 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 [2022-03-03 18:41:06,654 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] [2022-03-03 18:41:06,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2022-03-03 18:41:06,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 1454. [2022-03-03 18:41:06,680 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) [2022-03-03 18:41:06,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 5736 transitions. [2022-03-03 18:41:06,683 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 5736 transitions. Word has length 25 [2022-03-03 18:41:06,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:06,684 INFO L470 AbstractCegarLoop]: Abstraction has 1454 states and 5736 transitions. [2022-03-03 18:41:06,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:06,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 5736 transitions. [2022-03-03 18:41:06,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:06,686 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:06,686 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] [2022-03-03 18:41:06,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-03-03 18:41:06,686 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:06,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:06,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1680260941, now seen corresponding path program 263 times [2022-03-03 18:41:06,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:06,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30462379] [2022-03-03 18:41:06,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:06,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:06,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:06,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:06,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30462379] [2022-03-03 18:41:06,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30462379] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:06,811 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:06,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:06,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378759665] [2022-03-03 18:41:06,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:06,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:06,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:06,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:06,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:06,812 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) [2022-03-03 18:41:06,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:06,925 INFO L93 Difference]: Finished difference Result 3190 states and 11776 transitions. [2022-03-03 18:41:06,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:06,925 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:06,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:06,932 INFO L225 Difference]: With dead ends: 3190 [2022-03-03 18:41:06,932 INFO L226 Difference]: Without dead ends: 3007 [2022-03-03 18:41:06,933 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 [2022-03-03 18:41:06,933 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 [2022-03-03 18:41:06,933 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] [2022-03-03 18:41:06,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2022-03-03 18:41:06,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 1498. [2022-03-03 18:41:06,960 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) [2022-03-03 18:41:06,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5888 transitions. [2022-03-03 18:41:06,963 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5888 transitions. Word has length 25 [2022-03-03 18:41:06,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:06,963 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5888 transitions. [2022-03-03 18:41:06,963 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) [2022-03-03 18:41:06,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5888 transitions. [2022-03-03 18:41:06,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:06,965 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:06,965 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] [2022-03-03 18:41:06,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-03-03 18:41:06,966 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:06,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:06,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1545187349, now seen corresponding path program 264 times [2022-03-03 18:41:06,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:06,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696326197] [2022-03-03 18:41:06,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:06,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:07,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:07,083 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:07,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696326197] [2022-03-03 18:41:07,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696326197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:07,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:07,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:07,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589629993] [2022-03-03 18:41:07,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:07,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:07,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:07,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:07,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:07,084 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) [2022-03-03 18:41:07,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:07,194 INFO L93 Difference]: Finished difference Result 3229 states and 11879 transitions. [2022-03-03 18:41:07,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:07,194 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 [2022-03-03 18:41:07,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:07,201 INFO L225 Difference]: With dead ends: 3229 [2022-03-03 18:41:07,201 INFO L226 Difference]: Without dead ends: 2921 [2022-03-03 18:41:07,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:07,202 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 [2022-03-03 18:41:07,202 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] [2022-03-03 18:41:07,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2022-03-03 18:41:07,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 1412. [2022-03-03 18:41:07,227 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) [2022-03-03 18:41:07,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5613 transitions. [2022-03-03 18:41:07,230 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5613 transitions. Word has length 25 [2022-03-03 18:41:07,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:07,230 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5613 transitions. [2022-03-03 18:41:07,230 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) [2022-03-03 18:41:07,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5613 transitions. [2022-03-03 18:41:07,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:07,233 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:07,233 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] [2022-03-03 18:41:07,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-03-03 18:41:07,233 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:07,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:07,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1233542709, now seen corresponding path program 265 times [2022-03-03 18:41:07,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:07,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917593326] [2022-03-03 18:41:07,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:07,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:07,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:07,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:07,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917593326] [2022-03-03 18:41:07,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917593326] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:07,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:07,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:07,356 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939905672] [2022-03-03 18:41:07,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:07,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:07,356 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:07,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:07,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:07,356 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) [2022-03-03 18:41:07,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:07,462 INFO L93 Difference]: Finished difference Result 3022 states and 11152 transitions. [2022-03-03 18:41:07,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:07,462 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 [2022-03-03 18:41:07,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:07,468 INFO L225 Difference]: With dead ends: 3022 [2022-03-03 18:41:07,468 INFO L226 Difference]: Without dead ends: 2863 [2022-03-03 18:41:07,468 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 [2022-03-03 18:41:07,468 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 110 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:07,468 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] [2022-03-03 18:41:07,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2022-03-03 18:41:07,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 1444. [2022-03-03 18:41:07,492 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) [2022-03-03 18:41:07,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5725 transitions. [2022-03-03 18:41:07,495 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5725 transitions. Word has length 25 [2022-03-03 18:41:07,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:07,495 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5725 transitions. [2022-03-03 18:41:07,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:07,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5725 transitions. [2022-03-03 18:41:07,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:07,497 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:07,497 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] [2022-03-03 18:41:07,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-03-03 18:41:07,497 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:07,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:07,498 INFO L85 PathProgramCache]: Analyzing trace with hash 225244725, now seen corresponding path program 266 times [2022-03-03 18:41:07,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:07,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789999777] [2022-03-03 18:41:07,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:07,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:07,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:07,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:07,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789999777] [2022-03-03 18:41:07,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789999777] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:07,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:07,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:07,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275712736] [2022-03-03 18:41:07,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:07,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:07,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:07,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:07,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:07,620 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) [2022-03-03 18:41:07,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:07,729 INFO L93 Difference]: Finished difference Result 3085 states and 11359 transitions. [2022-03-03 18:41:07,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:07,730 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 [2022-03-03 18:41:07,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:07,736 INFO L225 Difference]: With dead ends: 3085 [2022-03-03 18:41:07,736 INFO L226 Difference]: Without dead ends: 2831 [2022-03-03 18:41:07,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:07,736 INFO L933 BasicCegarLoop]: 54 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, 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 [2022-03-03 18:41:07,736 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] [2022-03-03 18:41:07,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2022-03-03 18:41:07,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 1412. [2022-03-03 18:41:07,760 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) [2022-03-03 18:41:07,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5597 transitions. [2022-03-03 18:41:07,763 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5597 transitions. Word has length 25 [2022-03-03 18:41:07,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:07,763 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5597 transitions. [2022-03-03 18:41:07,763 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) [2022-03-03 18:41:07,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5597 transitions. [2022-03-03 18:41:07,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:07,765 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:07,765 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] [2022-03-03 18:41:07,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-03-03 18:41:07,765 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:07,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:07,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1272157393, now seen corresponding path program 267 times [2022-03-03 18:41:07,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:07,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629862968] [2022-03-03 18:41:07,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:07,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:07,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:07,886 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:07,886 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629862968] [2022-03-03 18:41:07,886 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629862968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:07,886 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:07,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:07,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68289653] [2022-03-03 18:41:07,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:07,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:07,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:07,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:07,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:07,887 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) [2022-03-03 18:41:07,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:07,994 INFO L93 Difference]: Finished difference Result 2973 states and 10958 transitions. [2022-03-03 18:41:07,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:07,994 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:07,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:08,000 INFO L225 Difference]: With dead ends: 2973 [2022-03-03 18:41:08,001 INFO L226 Difference]: Without dead ends: 2814 [2022-03-03 18:41:08,001 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 [2022-03-03 18:41:08,001 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 104 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:08,001 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] [2022-03-03 18:41:08,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2022-03-03 18:41:08,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 1428. [2022-03-03 18:41:08,026 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) [2022-03-03 18:41:08,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 5645 transitions. [2022-03-03 18:41:08,029 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 5645 transitions. Word has length 25 [2022-03-03 18:41:08,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:08,029 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 5645 transitions. [2022-03-03 18:41:08,029 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) [2022-03-03 18:41:08,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 5645 transitions. [2022-03-03 18:41:08,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:08,031 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:08,031 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] [2022-03-03 18:41:08,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-03-03 18:41:08,031 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:08,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:08,032 INFO L85 PathProgramCache]: Analyzing trace with hash -317777357, now seen corresponding path program 268 times [2022-03-03 18:41:08,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:08,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881026460] [2022-03-03 18:41:08,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:08,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:08,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:08,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:08,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881026460] [2022-03-03 18:41:08,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881026460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:08,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:08,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:08,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526514649] [2022-03-03 18:41:08,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:08,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:08,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:08,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:08,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:08,176 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) [2022-03-03 18:41:08,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:08,296 INFO L93 Difference]: Finished difference Result 3003 states and 11051 transitions. [2022-03-03 18:41:08,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:08,296 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 [2022-03-03 18:41:08,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:08,302 INFO L225 Difference]: With dead ends: 3003 [2022-03-03 18:41:08,302 INFO L226 Difference]: Without dead ends: 2798 [2022-03-03 18:41:08,302 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 [2022-03-03 18:41:08,303 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 [2022-03-03 18:41:08,303 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] [2022-03-03 18:41:08,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2022-03-03 18:41:08,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 1412. [2022-03-03 18:41:08,327 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) [2022-03-03 18:41:08,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5589 transitions. [2022-03-03 18:41:08,330 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5589 transitions. Word has length 25 [2022-03-03 18:41:08,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:08,330 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5589 transitions. [2022-03-03 18:41:08,330 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) [2022-03-03 18:41:08,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5589 transitions. [2022-03-03 18:41:08,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:08,332 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:08,332 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] [2022-03-03 18:41:08,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-03-03 18:41:08,332 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:08,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:08,333 INFO L85 PathProgramCache]: Analyzing trace with hash -955940843, now seen corresponding path program 269 times [2022-03-03 18:41:08,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:08,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223946086] [2022-03-03 18:41:08,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:08,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:08,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:08,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:08,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223946086] [2022-03-03 18:41:08,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223946086] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:08,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:08,457 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:08,457 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958644290] [2022-03-03 18:41:08,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:08,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:08,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:08,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:08,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:08,457 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) [2022-03-03 18:41:08,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:08,580 INFO L93 Difference]: Finished difference Result 3113 states and 11456 transitions. [2022-03-03 18:41:08,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:08,580 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:08,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:08,600 INFO L225 Difference]: With dead ends: 3113 [2022-03-03 18:41:08,601 INFO L226 Difference]: Without dead ends: 2924 [2022-03-03 18:41:08,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:08,601 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 [2022-03-03 18:41:08,601 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] [2022-03-03 18:41:08,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2022-03-03 18:41:08,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 1475. [2022-03-03 18:41:08,624 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) [2022-03-03 18:41:08,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 5796 transitions. [2022-03-03 18:41:08,627 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 5796 transitions. Word has length 25 [2022-03-03 18:41:08,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:08,627 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 5796 transitions. [2022-03-03 18:41:08,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:08,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 5796 transitions. [2022-03-03 18:41:08,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:08,629 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:08,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:08,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-03-03 18:41:08,629 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:08,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:08,630 INFO L85 PathProgramCache]: Analyzing trace with hash -657887885, now seen corresponding path program 270 times [2022-03-03 18:41:08,630 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:08,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69139126] [2022-03-03 18:41:08,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:08,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:08,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:08,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:08,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69139126] [2022-03-03 18:41:08,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69139126] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:08,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:08,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:08,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293517932] [2022-03-03 18:41:08,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:08,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:08,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:08,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:08,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:08,752 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) [2022-03-03 18:41:08,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:08,858 INFO L93 Difference]: Finished difference Result 3146 states and 11539 transitions. [2022-03-03 18:41:08,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:08,858 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:08,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:08,867 INFO L225 Difference]: With dead ends: 3146 [2022-03-03 18:41:08,867 INFO L226 Difference]: Without dead ends: 2837 [2022-03-03 18:41:08,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:08,867 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 [2022-03-03 18:41:08,867 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] [2022-03-03 18:41:08,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2837 states. [2022-03-03 18:41:08,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2837 to 1388. [2022-03-03 18:41:08,892 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) [2022-03-03 18:41:08,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5501 transitions. [2022-03-03 18:41:08,895 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5501 transitions. Word has length 25 [2022-03-03 18:41:08,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:08,895 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5501 transitions. [2022-03-03 18:41:08,895 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) [2022-03-03 18:41:08,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5501 transitions. [2022-03-03 18:41:08,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:08,897 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:08,897 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] [2022-03-03 18:41:08,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-03-03 18:41:08,897 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:08,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:08,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1979982219, now seen corresponding path program 271 times [2022-03-03 18:41:08,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:08,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187908323] [2022-03-03 18:41:08,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:08,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:09,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:09,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:09,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187908323] [2022-03-03 18:41:09,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187908323] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:09,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:09,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:09,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442017473] [2022-03-03 18:41:09,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:09,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:09,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:09,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:09,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:09,023 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) [2022-03-03 18:41:09,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:09,127 INFO L93 Difference]: Finished difference Result 2945 states and 10865 transitions. [2022-03-03 18:41:09,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:09,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:09,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:09,133 INFO L225 Difference]: With dead ends: 2945 [2022-03-03 18:41:09,133 INFO L226 Difference]: Without dead ends: 2786 [2022-03-03 18:41:09,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:09,134 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 [2022-03-03 18:41:09,134 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] [2022-03-03 18:41:09,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2022-03-03 18:41:09,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 1436. [2022-03-03 18:41:09,157 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) [2022-03-03 18:41:09,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 5685 transitions. [2022-03-03 18:41:09,160 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 5685 transitions. Word has length 25 [2022-03-03 18:41:09,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:09,160 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 5685 transitions. [2022-03-03 18:41:09,160 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) [2022-03-03 18:41:09,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 5685 transitions. [2022-03-03 18:41:09,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:09,162 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:09,162 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] [2022-03-03 18:41:09,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-03-03 18:41:09,163 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:09,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:09,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1306687093, now seen corresponding path program 272 times [2022-03-03 18:41:09,163 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:09,163 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515729762] [2022-03-03 18:41:09,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:09,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:09,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:09,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:09,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515729762] [2022-03-03 18:41:09,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515729762] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:09,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:09,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:09,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375307267] [2022-03-03 18:41:09,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:09,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:09,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:09,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:09,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:09,282 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) [2022-03-03 18:41:09,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:09,385 INFO L93 Difference]: Finished difference Result 3008 states and 11072 transitions. [2022-03-03 18:41:09,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:09,385 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:09,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:09,391 INFO L225 Difference]: With dead ends: 3008 [2022-03-03 18:41:09,391 INFO L226 Difference]: Without dead ends: 2754 [2022-03-03 18:41:09,391 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 [2022-03-03 18:41:09,391 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 [2022-03-03 18:41:09,391 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] [2022-03-03 18:41:09,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2022-03-03 18:41:09,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1404. [2022-03-03 18:41:09,414 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) [2022-03-03 18:41:09,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5557 transitions. [2022-03-03 18:41:09,417 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5557 transitions. Word has length 25 [2022-03-03 18:41:09,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:09,417 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5557 transitions. [2022-03-03 18:41:09,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:09,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5557 transitions. [2022-03-03 18:41:09,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:09,419 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:09,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:09,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-03-03 18:41:09,419 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:09,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:09,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1098563991, now seen corresponding path program 273 times [2022-03-03 18:41:09,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:09,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254090355] [2022-03-03 18:41:09,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:09,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:09,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:09,543 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:09,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254090355] [2022-03-03 18:41:09,543 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254090355] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:09,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:09,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:09,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514184691] [2022-03-03 18:41:09,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:09,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:09,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:09,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:09,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:09,544 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) [2022-03-03 18:41:09,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:09,647 INFO L93 Difference]: Finished difference Result 2850 states and 10514 transitions. [2022-03-03 18:41:09,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:09,647 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:09,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:09,652 INFO L225 Difference]: With dead ends: 2850 [2022-03-03 18:41:09,653 INFO L226 Difference]: Without dead ends: 2691 [2022-03-03 18:41:09,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:09,653 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 [2022-03-03 18:41:09,653 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] [2022-03-03 18:41:09,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2022-03-03 18:41:09,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 1420. [2022-03-03 18:41:09,675 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) [2022-03-03 18:41:09,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5605 transitions. [2022-03-03 18:41:09,678 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5605 transitions. Word has length 25 [2022-03-03 18:41:09,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:09,678 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5605 transitions. [2022-03-03 18:41:09,678 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) [2022-03-03 18:41:09,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5605 transitions. [2022-03-03 18:41:09,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:09,680 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:09,680 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] [2022-03-03 18:41:09,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-03-03 18:41:09,680 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:09,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:09,681 INFO L85 PathProgramCache]: Analyzing trace with hash -843708009, now seen corresponding path program 274 times [2022-03-03 18:41:09,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:09,681 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317610005] [2022-03-03 18:41:09,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:09,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:09,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:09,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:09,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317610005] [2022-03-03 18:41:09,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317610005] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:09,821 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:09,821 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:09,821 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614440163] [2022-03-03 18:41:09,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:09,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:09,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:09,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:09,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:09,822 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) [2022-03-03 18:41:09,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:09,930 INFO L93 Difference]: Finished difference Result 2738 states and 10177 transitions. [2022-03-03 18:41:09,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:09,930 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:09,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:09,936 INFO L225 Difference]: With dead ends: 2738 [2022-03-03 18:41:09,936 INFO L226 Difference]: Without dead ends: 2547 [2022-03-03 18:41:09,936 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 [2022-03-03 18:41:09,936 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 [2022-03-03 18:41:09,936 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] [2022-03-03 18:41:09,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2022-03-03 18:41:09,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 1404. [2022-03-03 18:41:09,958 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) [2022-03-03 18:41:09,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5549 transitions. [2022-03-03 18:41:09,961 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5549 transitions. Word has length 25 [2022-03-03 18:41:09,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:09,962 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5549 transitions. [2022-03-03 18:41:09,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:09,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5549 transitions. [2022-03-03 18:41:09,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:09,964 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:09,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:09,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-03-03 18:41:09,964 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:09,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:09,964 INFO L85 PathProgramCache]: Analyzing trace with hash 844538263, now seen corresponding path program 275 times [2022-03-03 18:41:09,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:09,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544275296] [2022-03-03 18:41:09,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:09,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:10,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:10,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:10,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544275296] [2022-03-03 18:41:10,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544275296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:10,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:10,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:10,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484177617] [2022-03-03 18:41:10,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:10,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:10,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:10,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:10,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:10,086 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) [2022-03-03 18:41:10,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:10,210 INFO L93 Difference]: Finished difference Result 2985 states and 11005 transitions. [2022-03-03 18:41:10,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:10,210 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 [2022-03-03 18:41:10,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:10,217 INFO L225 Difference]: With dead ends: 2985 [2022-03-03 18:41:10,217 INFO L226 Difference]: Without dead ends: 2810 [2022-03-03 18:41:10,217 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 [2022-03-03 18:41:10,217 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 [2022-03-03 18:41:10,217 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] [2022-03-03 18:41:10,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2022-03-03 18:41:10,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 1444. [2022-03-03 18:41:10,241 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) [2022-03-03 18:41:10,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5689 transitions. [2022-03-03 18:41:10,244 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5689 transitions. Word has length 25 [2022-03-03 18:41:10,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:10,244 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5689 transitions. [2022-03-03 18:41:10,244 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) [2022-03-03 18:41:10,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5689 transitions. [2022-03-03 18:41:10,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:10,246 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:10,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:10,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-03-03 18:41:10,246 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:10,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:10,247 INFO L85 PathProgramCache]: Analyzing trace with hash -810986123, now seen corresponding path program 276 times [2022-03-03 18:41:10,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:10,247 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249214764] [2022-03-03 18:41:10,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:10,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:10,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:10,378 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:10,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249214764] [2022-03-03 18:41:10,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249214764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:10,378 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:10,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:10,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016667879] [2022-03-03 18:41:10,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:10,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:10,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:10,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:10,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:10,378 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) [2022-03-03 18:41:10,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:10,477 INFO L93 Difference]: Finished difference Result 2937 states and 10805 transitions. [2022-03-03 18:41:10,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:10,477 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:10,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:10,482 INFO L225 Difference]: With dead ends: 2937 [2022-03-03 18:41:10,482 INFO L226 Difference]: Without dead ends: 2659 [2022-03-03 18:41:10,483 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 [2022-03-03 18:41:10,483 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 [2022-03-03 18:41:10,483 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] [2022-03-03 18:41:10,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states. [2022-03-03 18:41:10,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 1388. [2022-03-03 18:41:10,505 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) [2022-03-03 18:41:10,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5493 transitions. [2022-03-03 18:41:10,508 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5493 transitions. Word has length 25 [2022-03-03 18:41:10,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:10,508 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5493 transitions. [2022-03-03 18:41:10,508 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) [2022-03-03 18:41:10,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5493 transitions. [2022-03-03 18:41:10,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:10,510 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:10,510 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] [2022-03-03 18:41:10,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-03-03 18:41:10,510 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:10,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:10,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1047248209, now seen corresponding path program 277 times [2022-03-03 18:41:10,510 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:10,510 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288990626] [2022-03-03 18:41:10,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:10,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:10,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:10,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:10,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288990626] [2022-03-03 18:41:10,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288990626] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:10,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:10,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:10,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612527434] [2022-03-03 18:41:10,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:10,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:10,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:10,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:10,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:10,630 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) [2022-03-03 18:41:10,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:10,733 INFO L93 Difference]: Finished difference Result 2839 states and 10465 transitions. [2022-03-03 18:41:10,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:10,733 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:10,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:10,739 INFO L225 Difference]: With dead ends: 2839 [2022-03-03 18:41:10,739 INFO L226 Difference]: Without dead ends: 2680 [2022-03-03 18:41:10,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:10,739 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 [2022-03-03 18:41:10,739 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] [2022-03-03 18:41:10,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2022-03-03 18:41:10,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 1412. [2022-03-03 18:41:10,761 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) [2022-03-03 18:41:10,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5577 transitions. [2022-03-03 18:41:10,764 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5577 transitions. Word has length 25 [2022-03-03 18:41:10,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:10,764 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5577 transitions. [2022-03-03 18:41:10,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:10,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5577 transitions. [2022-03-03 18:41:10,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:10,767 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:10,767 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] [2022-03-03 18:41:10,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-03-03 18:41:10,767 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:10,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:10,767 INFO L85 PathProgramCache]: Analyzing trace with hash -542686541, now seen corresponding path program 278 times [2022-03-03 18:41:10,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:10,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791645400] [2022-03-03 18:41:10,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:10,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:10,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:10,885 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:10,885 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791645400] [2022-03-03 18:41:10,885 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791645400] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:10,885 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:10,885 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:10,885 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795031641] [2022-03-03 18:41:10,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:10,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:10,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:10,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:10,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:10,885 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) [2022-03-03 18:41:10,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:10,997 INFO L93 Difference]: Finished difference Result 2869 states and 10558 transitions. [2022-03-03 18:41:10,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:10,998 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:10,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:11,003 INFO L225 Difference]: With dead ends: 2869 [2022-03-03 18:41:11,004 INFO L226 Difference]: Without dead ends: 2664 [2022-03-03 18:41:11,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:11,004 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 [2022-03-03 18:41:11,004 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] [2022-03-03 18:41:11,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2022-03-03 18:41:11,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 1396. [2022-03-03 18:41:11,026 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) [2022-03-03 18:41:11,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 5521 transitions. [2022-03-03 18:41:11,029 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 5521 transitions. Word has length 25 [2022-03-03 18:41:11,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:11,029 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 5521 transitions. [2022-03-03 18:41:11,029 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) [2022-03-03 18:41:11,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 5521 transitions. [2022-03-03 18:41:11,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:11,031 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:11,031 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] [2022-03-03 18:41:11,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-03-03 18:41:11,031 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:11,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:11,031 INFO L85 PathProgramCache]: Analyzing trace with hash -447430349, now seen corresponding path program 279 times [2022-03-03 18:41:11,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:11,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610595014] [2022-03-03 18:41:11,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:11,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:11,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:11,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:11,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610595014] [2022-03-03 18:41:11,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610595014] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:11,152 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:11,152 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:11,152 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560879846] [2022-03-03 18:41:11,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:11,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:11,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:11,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:11,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:11,153 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) [2022-03-03 18:41:11,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:11,258 INFO L93 Difference]: Finished difference Result 2793 states and 10300 transitions. [2022-03-03 18:41:11,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:11,259 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 [2022-03-03 18:41:11,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:11,264 INFO L225 Difference]: With dead ends: 2793 [2022-03-03 18:41:11,264 INFO L226 Difference]: Without dead ends: 2634 [2022-03-03 18:41:11,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:11,264 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 [2022-03-03 18:41:11,264 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] [2022-03-03 18:41:11,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2022-03-03 18:41:11,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 1412. [2022-03-03 18:41:11,286 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) [2022-03-03 18:41:11,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5569 transitions. [2022-03-03 18:41:11,289 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5569 transitions. Word has length 25 [2022-03-03 18:41:11,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:11,289 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5569 transitions. [2022-03-03 18:41:11,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:11,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5569 transitions. [2022-03-03 18:41:11,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:11,291 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:11,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:11,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-03-03 18:41:11,291 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:11,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:11,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1905264947, now seen corresponding path program 280 times [2022-03-03 18:41:11,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:11,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178899941] [2022-03-03 18:41:11,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:11,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:11,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:11,411 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:11,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178899941] [2022-03-03 18:41:11,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178899941] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:11,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:11,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:11,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853419202] [2022-03-03 18:41:11,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:11,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:11,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:11,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:11,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:11,412 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) [2022-03-03 18:41:11,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:11,519 INFO L93 Difference]: Finished difference Result 2681 states and 9963 transitions. [2022-03-03 18:41:11,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:11,519 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 [2022-03-03 18:41:11,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:11,525 INFO L225 Difference]: With dead ends: 2681 [2022-03-03 18:41:11,525 INFO L226 Difference]: Without dead ends: 2490 [2022-03-03 18:41:11,525 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 [2022-03-03 18:41:11,525 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:11,525 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] [2022-03-03 18:41:11,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2022-03-03 18:41:11,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 1396. [2022-03-03 18:41:11,547 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) [2022-03-03 18:41:11,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 5513 transitions. [2022-03-03 18:41:11,550 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 5513 transitions. Word has length 25 [2022-03-03 18:41:11,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:11,550 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 5513 transitions. [2022-03-03 18:41:11,550 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) [2022-03-03 18:41:11,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 5513 transitions. [2022-03-03 18:41:11,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:11,552 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:11,552 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] [2022-03-03 18:41:11,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-03-03 18:41:11,552 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:11,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:11,553 INFO L85 PathProgramCache]: Analyzing trace with hash 969731605, now seen corresponding path program 281 times [2022-03-03 18:41:11,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:11,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349472640] [2022-03-03 18:41:11,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:11,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:11,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:11,677 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:11,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349472640] [2022-03-03 18:41:11,677 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349472640] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:11,677 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:11,677 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:11,677 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399255134] [2022-03-03 18:41:11,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:11,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:11,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:11,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:11,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:11,677 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) [2022-03-03 18:41:11,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:11,785 INFO L93 Difference]: Finished difference Result 2831 states and 10437 transitions. [2022-03-03 18:41:11,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:11,785 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:11,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:11,791 INFO L225 Difference]: With dead ends: 2831 [2022-03-03 18:41:11,791 INFO L226 Difference]: Without dead ends: 2642 [2022-03-03 18:41:11,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:11,791 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 [2022-03-03 18:41:11,791 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] [2022-03-03 18:41:11,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2022-03-03 18:41:11,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 1420. [2022-03-03 18:41:11,813 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) [2022-03-03 18:41:11,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5589 transitions. [2022-03-03 18:41:11,816 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5589 transitions. Word has length 25 [2022-03-03 18:41:11,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:11,816 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5589 transitions. [2022-03-03 18:41:11,816 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) [2022-03-03 18:41:11,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5589 transitions. [2022-03-03 18:41:11,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:11,819 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:11,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:11,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-03-03 18:41:11,819 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:11,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:11,819 INFO L85 PathProgramCache]: Analyzing trace with hash 228779507, now seen corresponding path program 282 times [2022-03-03 18:41:11,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:11,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520229414] [2022-03-03 18:41:11,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:11,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:11,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:11,946 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:11,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520229414] [2022-03-03 18:41:11,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520229414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:11,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:11,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:11,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841032209] [2022-03-03 18:41:11,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:11,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:11,947 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:11,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:11,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:11,947 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) [2022-03-03 18:41:12,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:12,058 INFO L93 Difference]: Finished difference Result 2689 states and 9983 transitions. [2022-03-03 18:41:12,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:12,058 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 [2022-03-03 18:41:12,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:12,063 INFO L225 Difference]: With dead ends: 2689 [2022-03-03 18:41:12,064 INFO L226 Difference]: Without dead ends: 2482 [2022-03-03 18:41:12,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:12,064 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:12,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 136 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:12,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2482 states. [2022-03-03 18:41:12,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2482 to 1388. [2022-03-03 18:41:12,085 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) [2022-03-03 18:41:12,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5489 transitions. [2022-03-03 18:41:12,088 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5489 transitions. Word has length 25 [2022-03-03 18:41:12,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:12,088 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5489 transitions. [2022-03-03 18:41:12,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:12,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5489 transitions. [2022-03-03 18:41:12,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:12,090 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:12,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:12,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-03-03 18:41:12,090 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:12,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:12,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1874944887, now seen corresponding path program 283 times [2022-03-03 18:41:12,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:12,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095388464] [2022-03-03 18:41:12,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:12,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:12,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:12,239 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:12,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095388464] [2022-03-03 18:41:12,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095388464] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:12,239 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:12,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:12,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258575766] [2022-03-03 18:41:12,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:12,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:12,240 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:12,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:12,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:12,240 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) [2022-03-03 18:41:12,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:12,378 INFO L93 Difference]: Finished difference Result 3063 states and 11315 transitions. [2022-03-03 18:41:12,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:12,378 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:12,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:12,387 INFO L225 Difference]: With dead ends: 3063 [2022-03-03 18:41:12,387 INFO L226 Difference]: Without dead ends: 2874 [2022-03-03 18:41:12,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:12,387 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 118 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:12,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 135 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:12,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2022-03-03 18:41:12,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 1440. [2022-03-03 18:41:12,424 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) [2022-03-03 18:41:12,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5685 transitions. [2022-03-03 18:41:12,429 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5685 transitions. Word has length 25 [2022-03-03 18:41:12,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:12,429 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5685 transitions. [2022-03-03 18:41:12,429 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) [2022-03-03 18:41:12,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5685 transitions. [2022-03-03 18:41:12,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:12,432 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:12,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:12,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-03-03 18:41:12,433 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:12,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:12,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1133992789, now seen corresponding path program 284 times [2022-03-03 18:41:12,433 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:12,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357174516] [2022-03-03 18:41:12,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:12,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:12,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:12,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:12,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357174516] [2022-03-03 18:41:12,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357174516] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:12,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:12,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:12,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745361062] [2022-03-03 18:41:12,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:12,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:12,572 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:12,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:12,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:12,573 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) [2022-03-03 18:41:12,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:12,689 INFO L93 Difference]: Finished difference Result 3049 states and 11246 transitions. [2022-03-03 18:41:12,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:12,690 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 [2022-03-03 18:41:12,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:12,696 INFO L225 Difference]: With dead ends: 3049 [2022-03-03 18:41:12,696 INFO L226 Difference]: Without dead ends: 2850 [2022-03-03 18:41:12,697 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 [2022-03-03 18:41:12,697 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 [2022-03-03 18:41:12,697 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] [2022-03-03 18:41:12,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2022-03-03 18:41:12,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 1416. [2022-03-03 18:41:12,724 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) [2022-03-03 18:41:12,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5597 transitions. [2022-03-03 18:41:12,727 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5597 transitions. Word has length 25 [2022-03-03 18:41:12,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:12,728 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5597 transitions. [2022-03-03 18:41:12,728 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) [2022-03-03 18:41:12,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5597 transitions. [2022-03-03 18:41:12,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:12,730 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:12,730 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] [2022-03-03 18:41:12,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-03-03 18:41:12,730 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:12,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:12,730 INFO L85 PathProgramCache]: Analyzing trace with hash 53909461, now seen corresponding path program 285 times [2022-03-03 18:41:12,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:12,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809759528] [2022-03-03 18:41:12,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:12,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:12,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:12,849 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:12,849 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809759528] [2022-03-03 18:41:12,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809759528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:12,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:12,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:12,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898156147] [2022-03-03 18:41:12,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:12,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:12,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:12,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:12,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:12,850 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) [2022-03-03 18:41:12,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:12,965 INFO L93 Difference]: Finished difference Result 3086 states and 11362 transitions. [2022-03-03 18:41:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:12,965 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:12,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:12,972 INFO L225 Difference]: With dead ends: 3086 [2022-03-03 18:41:12,972 INFO L226 Difference]: Without dead ends: 2897 [2022-03-03 18:41:12,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:12,972 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 [2022-03-03 18:41:12,972 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] [2022-03-03 18:41:12,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2022-03-03 18:41:12,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 1479. [2022-03-03 18:41:12,997 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) [2022-03-03 18:41:13,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 5804 transitions. [2022-03-03 18:41:13,000 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 5804 transitions. Word has length 25 [2022-03-03 18:41:13,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:13,000 INFO L470 AbstractCegarLoop]: Abstraction has 1479 states and 5804 transitions. [2022-03-03 18:41:13,000 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) [2022-03-03 18:41:13,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 5804 transitions. [2022-03-03 18:41:13,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:13,003 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:13,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:13,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-03-03 18:41:13,003 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:13,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:13,003 INFO L85 PathProgramCache]: Analyzing trace with hash 2073862357, now seen corresponding path program 286 times [2022-03-03 18:41:13,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:13,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346333071] [2022-03-03 18:41:13,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:13,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:13,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:13,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:13,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346333071] [2022-03-03 18:41:13,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346333071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:13,125 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:13,125 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:13,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289555112] [2022-03-03 18:41:13,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:13,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:13,125 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:13,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:13,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:13,126 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) [2022-03-03 18:41:13,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:13,236 INFO L93 Difference]: Finished difference Result 3119 states and 11445 transitions. [2022-03-03 18:41:13,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:13,236 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:13,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:13,242 INFO L225 Difference]: With dead ends: 3119 [2022-03-03 18:41:13,242 INFO L226 Difference]: Without dead ends: 2834 [2022-03-03 18:41:13,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:13,242 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 [2022-03-03 18:41:13,242 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] [2022-03-03 18:41:13,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2022-03-03 18:41:13,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 1416. [2022-03-03 18:41:13,265 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) [2022-03-03 18:41:13,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5569 transitions. [2022-03-03 18:41:13,268 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5569 transitions. Word has length 25 [2022-03-03 18:41:13,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:13,268 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5569 transitions. [2022-03-03 18:41:13,268 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) [2022-03-03 18:41:13,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5569 transitions. [2022-03-03 18:41:13,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:13,270 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:13,270 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] [2022-03-03 18:41:13,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-03-03 18:41:13,271 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:13,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:13,271 INFO L85 PathProgramCache]: Analyzing trace with hash -199923405, now seen corresponding path program 287 times [2022-03-03 18:41:13,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:13,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555952055] [2022-03-03 18:41:13,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:13,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:13,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:13,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:13,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555952055] [2022-03-03 18:41:13,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555952055] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:13,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:13,392 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:13,392 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873961466] [2022-03-03 18:41:13,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:13,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:13,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:13,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:13,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:13,393 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) [2022-03-03 18:41:13,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:13,528 INFO L93 Difference]: Finished difference Result 3035 states and 11170 transitions. [2022-03-03 18:41:13,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:13,528 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 [2022-03-03 18:41:13,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:13,535 INFO L225 Difference]: With dead ends: 3035 [2022-03-03 18:41:13,535 INFO L226 Difference]: Without dead ends: 2860 [2022-03-03 18:41:13,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:13,535 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 96 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:13,535 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] [2022-03-03 18:41:13,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2860 states. [2022-03-03 18:41:13,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2860 to 1456. [2022-03-03 18:41:13,560 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) [2022-03-03 18:41:13,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5709 transitions. [2022-03-03 18:41:13,563 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5709 transitions. Word has length 25 [2022-03-03 18:41:13,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:13,563 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5709 transitions. [2022-03-03 18:41:13,563 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) [2022-03-03 18:41:13,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5709 transitions. [2022-03-03 18:41:13,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:13,565 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:13,565 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] [2022-03-03 18:41:13,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-03-03 18:41:13,565 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:13,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:13,566 INFO L85 PathProgramCache]: Analyzing trace with hash 18428181, now seen corresponding path program 288 times [2022-03-03 18:41:13,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:13,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445480574] [2022-03-03 18:41:13,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:13,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:13,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:13,702 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:13,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445480574] [2022-03-03 18:41:13,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445480574] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:13,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:13,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:13,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120557167] [2022-03-03 18:41:13,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:13,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:13,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:13,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:13,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:13,702 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) [2022-03-03 18:41:13,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:13,813 INFO L93 Difference]: Finished difference Result 2987 states and 10970 transitions. [2022-03-03 18:41:13,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:13,813 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:13,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:13,819 INFO L225 Difference]: With dead ends: 2987 [2022-03-03 18:41:13,819 INFO L226 Difference]: Without dead ends: 2685 [2022-03-03 18:41:13,819 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 [2022-03-03 18:41:13,819 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 [2022-03-03 18:41:13,819 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] [2022-03-03 18:41:13,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2022-03-03 18:41:13,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 1376. [2022-03-03 18:41:13,840 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) [2022-03-03 18:41:13,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 5451 transitions. [2022-03-03 18:41:13,843 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 5451 transitions. Word has length 25 [2022-03-03 18:41:13,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:13,843 INFO L470 AbstractCegarLoop]: Abstraction has 1376 states and 5451 transitions. [2022-03-03 18:41:13,843 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) [2022-03-03 18:41:13,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 5451 transitions. [2022-03-03 18:41:13,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:13,845 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:13,845 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] [2022-03-03 18:41:13,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-03-03 18:41:13,846 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:13,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:13,846 INFO L85 PathProgramCache]: Analyzing trace with hash -317194349, now seen corresponding path program 289 times [2022-03-03 18:41:13,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:13,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063114927] [2022-03-03 18:41:13,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:13,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:13,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:13,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:13,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063114927] [2022-03-03 18:41:13,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063114927] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:13,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:13,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:13,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674294378] [2022-03-03 18:41:13,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:13,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:13,966 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:13,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:13,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:13,967 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) [2022-03-03 18:41:14,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:14,070 INFO L93 Difference]: Finished difference Result 2920 states and 10796 transitions. [2022-03-03 18:41:14,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:14,070 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:14,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:14,075 INFO L225 Difference]: With dead ends: 2920 [2022-03-03 18:41:14,075 INFO L226 Difference]: Without dead ends: 2761 [2022-03-03 18:41:14,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:14,076 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 122 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:14,076 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] [2022-03-03 18:41:14,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2022-03-03 18:41:14,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 1432. [2022-03-03 18:41:14,112 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) [2022-03-03 18:41:14,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5675 transitions. [2022-03-03 18:41:14,115 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5675 transitions. Word has length 25 [2022-03-03 18:41:14,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:14,115 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5675 transitions. [2022-03-03 18:41:14,115 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) [2022-03-03 18:41:14,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5675 transitions. [2022-03-03 18:41:14,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:14,118 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:14,118 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] [2022-03-03 18:41:14,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-03-03 18:41:14,118 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:14,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:14,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1325492333, now seen corresponding path program 290 times [2022-03-03 18:41:14,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:14,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992876376] [2022-03-03 18:41:14,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:14,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:14,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:14,235 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:14,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992876376] [2022-03-03 18:41:14,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992876376] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:14,235 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:14,235 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:14,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379203155] [2022-03-03 18:41:14,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:14,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:14,236 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:14,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:14,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:14,236 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) [2022-03-03 18:41:14,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:14,339 INFO L93 Difference]: Finished difference Result 2983 states and 11003 transitions. [2022-03-03 18:41:14,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:14,339 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 [2022-03-03 18:41:14,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:14,345 INFO L225 Difference]: With dead ends: 2983 [2022-03-03 18:41:14,345 INFO L226 Difference]: Without dead ends: 2729 [2022-03-03 18:41:14,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:14,345 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 103 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:14,345 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] [2022-03-03 18:41:14,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2022-03-03 18:41:14,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 1400. [2022-03-03 18:41:14,369 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) [2022-03-03 18:41:14,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 5547 transitions. [2022-03-03 18:41:14,372 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 5547 transitions. Word has length 25 [2022-03-03 18:41:14,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:14,372 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 5547 transitions. [2022-03-03 18:41:14,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:14,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 5547 transitions. [2022-03-03 18:41:14,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:14,374 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:14,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:14,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-03-03 18:41:14,375 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:14,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:14,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1716595509, now seen corresponding path program 291 times [2022-03-03 18:41:14,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:14,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842952223] [2022-03-03 18:41:14,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:14,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:14,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:14,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:14,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842952223] [2022-03-03 18:41:14,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842952223] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:14,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:14,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:14,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573467455] [2022-03-03 18:41:14,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:14,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:14,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:14,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:14,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:14,493 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) [2022-03-03 18:41:14,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:14,593 INFO L93 Difference]: Finished difference Result 2865 states and 10585 transitions. [2022-03-03 18:41:14,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:14,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:14,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:14,599 INFO L225 Difference]: With dead ends: 2865 [2022-03-03 18:41:14,599 INFO L226 Difference]: Without dead ends: 2706 [2022-03-03 18:41:14,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:14,599 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 112 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:14,599 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] [2022-03-03 18:41:14,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2706 states. [2022-03-03 18:41:14,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2706 to 1416. [2022-03-03 18:41:14,621 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) [2022-03-03 18:41:14,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5595 transitions. [2022-03-03 18:41:14,624 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5595 transitions. Word has length 25 [2022-03-03 18:41:14,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:14,624 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5595 transitions. [2022-03-03 18:41:14,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:14,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5595 transitions. [2022-03-03 18:41:14,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:14,626 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:14,626 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] [2022-03-03 18:41:14,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-03-03 18:41:14,626 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:14,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:14,627 INFO L85 PathProgramCache]: Analyzing trace with hash -897875147, now seen corresponding path program 292 times [2022-03-03 18:41:14,627 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:14,627 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408903699] [2022-03-03 18:41:14,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:14,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:14,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:14,746 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:14,746 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408903699] [2022-03-03 18:41:14,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408903699] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:14,746 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:14,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:14,746 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557929112] [2022-03-03 18:41:14,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:14,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:14,746 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:14,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:14,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:14,746 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) [2022-03-03 18:41:14,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:14,879 INFO L93 Difference]: Finished difference Result 2889 states and 10661 transitions. [2022-03-03 18:41:14,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:14,880 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 [2022-03-03 18:41:14,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:14,885 INFO L225 Difference]: With dead ends: 2889 [2022-03-03 18:41:14,885 INFO L226 Difference]: Without dead ends: 2690 [2022-03-03 18:41:14,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:14,885 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 [2022-03-03 18:41:14,885 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] [2022-03-03 18:41:14,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2022-03-03 18:41:14,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 1400. [2022-03-03 18:41:14,907 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) [2022-03-03 18:41:14,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 5539 transitions. [2022-03-03 18:41:14,910 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 5539 transitions. Word has length 25 [2022-03-03 18:41:14,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:14,910 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 5539 transitions. [2022-03-03 18:41:14,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:14,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 5539 transitions. [2022-03-03 18:41:14,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:14,912 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:14,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:14,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-03-03 18:41:14,913 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:14,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:14,913 INFO L85 PathProgramCache]: Analyzing trace with hash 790371125, now seen corresponding path program 293 times [2022-03-03 18:41:14,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:14,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989726350] [2022-03-03 18:41:14,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:14,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:15,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:15,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:15,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989726350] [2022-03-03 18:41:15,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989726350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:15,032 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:15,032 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:15,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347575836] [2022-03-03 18:41:15,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:15,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:15,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:15,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:15,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:15,033 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) [2022-03-03 18:41:15,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:15,148 INFO L93 Difference]: Finished difference Result 2980 states and 11008 transitions. [2022-03-03 18:41:15,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:15,148 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:15,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:15,154 INFO L225 Difference]: With dead ends: 2980 [2022-03-03 18:41:15,154 INFO L226 Difference]: Without dead ends: 2797 [2022-03-03 18:41:15,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:15,155 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:15,155 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] [2022-03-03 18:41:15,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2022-03-03 18:41:15,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 1444. [2022-03-03 18:41:15,181 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) [2022-03-03 18:41:15,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5691 transitions. [2022-03-03 18:41:15,184 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5691 transitions. Word has length 25 [2022-03-03 18:41:15,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:15,184 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5691 transitions. [2022-03-03 18:41:15,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:15,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5691 transitions. [2022-03-03 18:41:15,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:15,187 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:15,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:15,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-03-03 18:41:15,187 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:15,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:15,187 INFO L85 PathProgramCache]: Analyzing trace with hash -213960813, now seen corresponding path program 294 times [2022-03-03 18:41:15,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:15,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800115866] [2022-03-03 18:41:15,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:15,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:15,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:15,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:15,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800115866] [2022-03-03 18:41:15,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800115866] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:15,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:15,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:15,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447914355] [2022-03-03 18:41:15,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:15,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:15,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:15,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:15,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:15,309 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) [2022-03-03 18:41:15,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:15,415 INFO L93 Difference]: Finished difference Result 3019 states and 11111 transitions. [2022-03-03 18:41:15,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:15,415 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 [2022-03-03 18:41:15,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:15,420 INFO L225 Difference]: With dead ends: 3019 [2022-03-03 18:41:15,420 INFO L226 Difference]: Without dead ends: 2737 [2022-03-03 18:41:15,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:15,421 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 [2022-03-03 18:41:15,421 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] [2022-03-03 18:41:15,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states. [2022-03-03 18:41:15,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 1384. [2022-03-03 18:41:15,451 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) [2022-03-03 18:41:15,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 5483 transitions. [2022-03-03 18:41:15,454 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 5483 transitions. Word has length 25 [2022-03-03 18:41:15,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:15,454 INFO L470 AbstractCegarLoop]: Abstraction has 1384 states and 5483 transitions. [2022-03-03 18:41:15,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:15,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 5483 transitions. [2022-03-03 18:41:15,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:15,456 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:15,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:15,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-03-03 18:41:15,457 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:15,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:15,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1392407413, now seen corresponding path program 295 times [2022-03-03 18:41:15,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:15,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071626026] [2022-03-03 18:41:15,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:15,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:15,577 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:15,577 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071626026] [2022-03-03 18:41:15,577 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071626026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:15,577 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:15,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:15,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844491854] [2022-03-03 18:41:15,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:15,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:15,578 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:15,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:15,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:15,578 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) [2022-03-03 18:41:15,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:15,692 INFO L93 Difference]: Finished difference Result 2860 states and 10544 transitions. [2022-03-03 18:41:15,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:15,692 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 [2022-03-03 18:41:15,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:15,698 INFO L225 Difference]: With dead ends: 2860 [2022-03-03 18:41:15,698 INFO L226 Difference]: Without dead ends: 2701 [2022-03-03 18:41:15,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:15,698 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 [2022-03-03 18:41:15,699 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] [2022-03-03 18:41:15,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2022-03-03 18:41:15,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 1432. [2022-03-03 18:41:15,721 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) [2022-03-03 18:41:15,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5667 transitions. [2022-03-03 18:41:15,724 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5667 transitions. Word has length 25 [2022-03-03 18:41:15,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:15,724 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5667 transitions. [2022-03-03 18:41:15,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:15,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5667 transitions. [2022-03-03 18:41:15,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:15,727 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:15,727 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] [2022-03-03 18:41:15,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-03-03 18:41:15,727 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:15,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:15,727 INFO L85 PathProgramCache]: Analyzing trace with hash 384109429, now seen corresponding path program 296 times [2022-03-03 18:41:15,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:15,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971201530] [2022-03-03 18:41:15,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:15,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:15,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:15,847 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:15,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971201530] [2022-03-03 18:41:15,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971201530] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:15,847 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:15,847 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:15,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954633501] [2022-03-03 18:41:15,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:15,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:15,847 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:15,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:15,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:15,848 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) [2022-03-03 18:41:15,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:15,966 INFO L93 Difference]: Finished difference Result 2923 states and 10751 transitions. [2022-03-03 18:41:15,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:15,966 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 [2022-03-03 18:41:15,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:15,972 INFO L225 Difference]: With dead ends: 2923 [2022-03-03 18:41:15,972 INFO L226 Difference]: Without dead ends: 2669 [2022-03-03 18:41:15,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:15,972 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 [2022-03-03 18:41:15,973 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] [2022-03-03 18:41:15,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2022-03-03 18:41:15,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 1400. [2022-03-03 18:41:15,996 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) [2022-03-03 18:41:15,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 5539 transitions. [2022-03-03 18:41:15,999 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 5539 transitions. Word has length 25 [2022-03-03 18:41:15,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:15,999 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 5539 transitions. [2022-03-03 18:41:15,999 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) [2022-03-03 18:41:15,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 5539 transitions. [2022-03-03 18:41:16,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:16,001 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:16,001 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] [2022-03-03 18:41:16,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-03-03 18:41:16,001 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:16,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:16,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1852050763, now seen corresponding path program 297 times [2022-03-03 18:41:16,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:16,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109408582] [2022-03-03 18:41:16,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:16,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:16,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:16,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:16,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109408582] [2022-03-03 18:41:16,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109408582] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:16,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:16,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:16,121 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279271530] [2022-03-03 18:41:16,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:16,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:16,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:16,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:16,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:16,121 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) [2022-03-03 18:41:16,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:16,233 INFO L93 Difference]: Finished difference Result 2765 states and 10193 transitions. [2022-03-03 18:41:16,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:16,234 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:16,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:16,239 INFO L225 Difference]: With dead ends: 2765 [2022-03-03 18:41:16,239 INFO L226 Difference]: Without dead ends: 2606 [2022-03-03 18:41:16,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:16,240 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 [2022-03-03 18:41:16,240 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] [2022-03-03 18:41:16,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2022-03-03 18:41:16,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 1416. [2022-03-03 18:41:16,261 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) [2022-03-03 18:41:16,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5587 transitions. [2022-03-03 18:41:16,264 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5587 transitions. Word has length 25 [2022-03-03 18:41:16,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:16,264 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5587 transitions. [2022-03-03 18:41:16,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:16,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5587 transitions. [2022-03-03 18:41:16,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:16,266 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:16,266 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] [2022-03-03 18:41:16,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-03-03 18:41:16,267 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:16,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:16,267 INFO L85 PathProgramCache]: Analyzing trace with hash 500644533, now seen corresponding path program 298 times [2022-03-03 18:41:16,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:16,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678199813] [2022-03-03 18:41:16,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:16,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:16,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:16,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:16,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678199813] [2022-03-03 18:41:16,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678199813] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:16,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:16,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:16,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143224238] [2022-03-03 18:41:16,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:16,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:16,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:16,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:16,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:16,409 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) [2022-03-03 18:41:16,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:16,542 INFO L93 Difference]: Finished difference Result 2653 states and 9856 transitions. [2022-03-03 18:41:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:16,543 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:16,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:16,548 INFO L225 Difference]: With dead ends: 2653 [2022-03-03 18:41:16,548 INFO L226 Difference]: Without dead ends: 2462 [2022-03-03 18:41:16,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:16,548 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 [2022-03-03 18:41:16,548 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] [2022-03-03 18:41:16,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2462 states. [2022-03-03 18:41:16,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2462 to 1400. [2022-03-03 18:41:16,568 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) [2022-03-03 18:41:16,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 5531 transitions. [2022-03-03 18:41:16,571 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 5531 transitions. Word has length 25 [2022-03-03 18:41:16,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:16,571 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 5531 transitions. [2022-03-03 18:41:16,571 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) [2022-03-03 18:41:16,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 5531 transitions. [2022-03-03 18:41:16,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:16,573 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:16,573 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] [2022-03-03 18:41:16,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-03-03 18:41:16,574 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:16,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:16,574 INFO L85 PathProgramCache]: Analyzing trace with hash -2106076491, now seen corresponding path program 299 times [2022-03-03 18:41:16,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:16,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130186492] [2022-03-03 18:41:16,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:16,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:16,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:16,692 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:16,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130186492] [2022-03-03 18:41:16,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130186492] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:16,692 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:16,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:16,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854089039] [2022-03-03 18:41:16,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:16,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:16,693 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:16,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:16,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:16,693 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) [2022-03-03 18:41:16,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:16,855 INFO L93 Difference]: Finished difference Result 2900 states and 10684 transitions. [2022-03-03 18:41:16,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:16,856 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:16,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:16,864 INFO L225 Difference]: With dead ends: 2900 [2022-03-03 18:41:16,864 INFO L226 Difference]: Without dead ends: 2725 [2022-03-03 18:41:16,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:16,864 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 99 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:16,864 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] [2022-03-03 18:41:16,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2725 states. [2022-03-03 18:41:16,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2725 to 1440. [2022-03-03 18:41:16,888 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) [2022-03-03 18:41:16,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5671 transitions. [2022-03-03 18:41:16,891 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5671 transitions. Word has length 25 [2022-03-03 18:41:16,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:16,891 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5671 transitions. [2022-03-03 18:41:16,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:16,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5671 transitions. [2022-03-03 18:41:16,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:16,893 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:16,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:16,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-03-03 18:41:16,893 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:16,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:16,893 INFO L85 PathProgramCache]: Analyzing trace with hash 533366419, now seen corresponding path program 300 times [2022-03-03 18:41:16,894 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:16,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966458833] [2022-03-03 18:41:16,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:16,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:17,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:17,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:17,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966458833] [2022-03-03 18:41:17,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966458833] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:17,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:17,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:17,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537616585] [2022-03-03 18:41:17,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:17,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:17,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:17,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:17,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:17,036 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) [2022-03-03 18:41:17,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:17,163 INFO L93 Difference]: Finished difference Result 2852 states and 10484 transitions. [2022-03-03 18:41:17,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:17,163 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:17,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:17,171 INFO L225 Difference]: With dead ends: 2852 [2022-03-03 18:41:17,171 INFO L226 Difference]: Without dead ends: 2574 [2022-03-03 18:41:17,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:17,172 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:17,172 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] [2022-03-03 18:41:17,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states. [2022-03-03 18:41:17,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 1384. [2022-03-03 18:41:17,202 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) [2022-03-03 18:41:17,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 5475 transitions. [2022-03-03 18:41:17,206 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 5475 transitions. Word has length 25 [2022-03-03 18:41:17,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:17,206 INFO L470 AbstractCegarLoop]: Abstraction has 1384 states and 5475 transitions. [2022-03-03 18:41:17,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:17,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 5475 transitions. [2022-03-03 18:41:17,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:17,209 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:17,209 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] [2022-03-03 18:41:17,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-03-03 18:41:17,209 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:17,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:17,209 INFO L85 PathProgramCache]: Analyzing trace with hash 967036375, now seen corresponding path program 301 times [2022-03-03 18:41:17,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:17,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901795079] [2022-03-03 18:41:17,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:17,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:17,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:17,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:17,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901795079] [2022-03-03 18:41:17,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901795079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:17,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:17,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:17,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248892957] [2022-03-03 18:41:17,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:17,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:17,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:17,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:17,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:17,364 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) [2022-03-03 18:41:17,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:17,464 INFO L93 Difference]: Finished difference Result 2710 states and 9998 transitions. [2022-03-03 18:41:17,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:17,464 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:17,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:17,469 INFO L225 Difference]: With dead ends: 2710 [2022-03-03 18:41:17,469 INFO L226 Difference]: Without dead ends: 2551 [2022-03-03 18:41:17,469 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 [2022-03-03 18:41:17,469 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 104 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:17,469 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] [2022-03-03 18:41:17,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2551 states. [2022-03-03 18:41:17,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2551 to 1408. [2022-03-03 18:41:17,490 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) [2022-03-03 18:41:17,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 5559 transitions. [2022-03-03 18:41:17,493 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 5559 transitions. Word has length 25 [2022-03-03 18:41:17,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:17,493 INFO L470 AbstractCegarLoop]: Abstraction has 1408 states and 5559 transitions. [2022-03-03 18:41:17,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:17,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 5559 transitions. [2022-03-03 18:41:17,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:17,495 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:17,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:17,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-03-03 18:41:17,495 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:17,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:17,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1647434281, now seen corresponding path program 302 times [2022-03-03 18:41:17,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:17,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010736463] [2022-03-03 18:41:17,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:17,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:17,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:17,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:17,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010736463] [2022-03-03 18:41:17,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010736463] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:17,639 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:17,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:17,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345013600] [2022-03-03 18:41:17,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:17,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:17,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:17,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:17,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:17,640 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) [2022-03-03 18:41:17,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:17,773 INFO L93 Difference]: Finished difference Result 2734 states and 10074 transitions. [2022-03-03 18:41:17,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:17,774 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:17,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:17,780 INFO L225 Difference]: With dead ends: 2734 [2022-03-03 18:41:17,780 INFO L226 Difference]: Without dead ends: 2535 [2022-03-03 18:41:17,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:17,780 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 108 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:17,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 147 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:17,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2535 states. [2022-03-03 18:41:17,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2535 to 1392. [2022-03-03 18:41:17,803 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) [2022-03-03 18:41:17,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5503 transitions. [2022-03-03 18:41:17,806 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5503 transitions. Word has length 25 [2022-03-03 18:41:17,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:17,806 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5503 transitions. [2022-03-03 18:41:17,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:17,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5503 transitions. [2022-03-03 18:41:17,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:17,808 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:17,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:17,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-03-03 18:41:17,809 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:17,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:17,809 INFO L85 PathProgramCache]: Analyzing trace with hash 120239413, now seen corresponding path program 303 times [2022-03-03 18:41:17,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:17,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703628302] [2022-03-03 18:41:17,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:17,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:17,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:17,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:17,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703628302] [2022-03-03 18:41:17,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703628302] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:17,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:17,943 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:17,943 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662014450] [2022-03-03 18:41:17,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:17,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:17,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:17,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:17,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:17,943 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) [2022-03-03 18:41:18,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:18,049 INFO L93 Difference]: Finished difference Result 2654 states and 9786 transitions. [2022-03-03 18:41:18,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:18,050 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:18,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:18,056 INFO L225 Difference]: With dead ends: 2654 [2022-03-03 18:41:18,056 INFO L226 Difference]: Without dead ends: 2495 [2022-03-03 18:41:18,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:18,056 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 107 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:18,056 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] [2022-03-03 18:41:18,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states. [2022-03-03 18:41:18,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 1408. [2022-03-03 18:41:18,080 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) [2022-03-03 18:41:18,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 5551 transitions. [2022-03-03 18:41:18,083 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 5551 transitions. Word has length 25 [2022-03-03 18:41:18,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:18,083 INFO L470 AbstractCegarLoop]: Abstraction has 1408 states and 5551 transitions. [2022-03-03 18:41:18,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:18,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 5551 transitions. [2022-03-03 18:41:18,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:18,086 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:18,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:18,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-03-03 18:41:18,086 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:18,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:18,086 INFO L85 PathProgramCache]: Analyzing trace with hash 762578391, now seen corresponding path program 304 times [2022-03-03 18:41:18,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:18,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495838181] [2022-03-03 18:41:18,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:18,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:18,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:18,206 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:18,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495838181] [2022-03-03 18:41:18,206 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495838181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:18,206 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:18,206 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:18,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051393265] [2022-03-03 18:41:18,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:18,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:18,206 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:18,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:18,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:18,207 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) [2022-03-03 18:41:18,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:18,310 INFO L93 Difference]: Finished difference Result 2542 states and 9449 transitions. [2022-03-03 18:41:18,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:18,310 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 [2022-03-03 18:41:18,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:18,316 INFO L225 Difference]: With dead ends: 2542 [2022-03-03 18:41:18,316 INFO L226 Difference]: Without dead ends: 2351 [2022-03-03 18:41:18,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:18,316 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 105 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:18,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 135 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:18,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states. [2022-03-03 18:41:18,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 1392. [2022-03-03 18:41:18,338 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) [2022-03-03 18:41:18,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5495 transitions. [2022-03-03 18:41:18,341 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5495 transitions. Word has length 25 [2022-03-03 18:41:18,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:18,341 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5495 transitions. [2022-03-03 18:41:18,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:18,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5495 transitions. [2022-03-03 18:41:18,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:18,343 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:18,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:18,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-03-03 18:41:18,343 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:18,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:18,344 INFO L85 PathProgramCache]: Analyzing trace with hash 139947479, now seen corresponding path program 305 times [2022-03-03 18:41:18,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:18,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192349554] [2022-03-03 18:41:18,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:18,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:18,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:18,465 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:18,465 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192349554] [2022-03-03 18:41:18,465 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192349554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:18,465 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:18,465 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:18,465 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929784036] [2022-03-03 18:41:18,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:18,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:18,465 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:18,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:18,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:18,466 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) [2022-03-03 18:41:18,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:18,581 INFO L93 Difference]: Finished difference Result 2558 states and 9521 transitions. [2022-03-03 18:41:18,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:18,582 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:18,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:18,587 INFO L225 Difference]: With dead ends: 2558 [2022-03-03 18:41:18,587 INFO L226 Difference]: Without dead ends: 2375 [2022-03-03 18:41:18,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:18,587 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 93 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:18,587 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] [2022-03-03 18:41:18,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2022-03-03 18:41:18,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 1416. [2022-03-03 18:41:18,609 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) [2022-03-03 18:41:18,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5571 transitions. [2022-03-03 18:41:18,612 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5571 transitions. Word has length 25 [2022-03-03 18:41:18,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:18,612 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5571 transitions. [2022-03-03 18:41:18,612 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) [2022-03-03 18:41:18,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5571 transitions. [2022-03-03 18:41:18,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:18,614 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:18,615 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] [2022-03-03 18:41:18,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-03-03 18:41:18,615 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:18,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:18,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1903389515, now seen corresponding path program 306 times [2022-03-03 18:41:18,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:18,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830869581] [2022-03-03 18:41:18,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:18,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:18,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:18,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:18,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830869581] [2022-03-03 18:41:18,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830869581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:18,734 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:18,734 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:18,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201305360] [2022-03-03 18:41:18,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:18,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:18,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:18,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:18,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:18,735 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) [2022-03-03 18:41:18,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:18,837 INFO L93 Difference]: Finished difference Result 2374 states and 8908 transitions. [2022-03-03 18:41:18,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:18,837 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:18,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:18,842 INFO L225 Difference]: With dead ends: 2374 [2022-03-03 18:41:18,842 INFO L226 Difference]: Without dead ends: 2167 [2022-03-03 18:41:18,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:18,842 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 87 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:18,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 136 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:18,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2022-03-03 18:41:18,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 1384. [2022-03-03 18:41:18,862 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) [2022-03-03 18:41:18,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 5471 transitions. [2022-03-03 18:41:18,865 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 5471 transitions. Word has length 25 [2022-03-03 18:41:18,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:18,865 INFO L470 AbstractCegarLoop]: Abstraction has 1384 states and 5471 transitions. [2022-03-03 18:41:18,865 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) [2022-03-03 18:41:18,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 5471 transitions. [2022-03-03 18:41:18,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:18,867 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:18,867 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] [2022-03-03 18:41:18,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-03-03 18:41:18,867 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:18,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:18,867 INFO L85 PathProgramCache]: Analyzing trace with hash -953023017, now seen corresponding path program 307 times [2022-03-03 18:41:18,867 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:18,867 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289588609] [2022-03-03 18:41:18,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:18,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:18,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:18,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:18,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289588609] [2022-03-03 18:41:18,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289588609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:18,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:18,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:18,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936584847] [2022-03-03 18:41:18,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:18,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:18,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:18,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:18,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:18,991 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) [2022-03-03 18:41:19,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:19,107 INFO L93 Difference]: Finished difference Result 2933 states and 10857 transitions. [2022-03-03 18:41:19,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:19,108 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:19,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:19,115 INFO L225 Difference]: With dead ends: 2933 [2022-03-03 18:41:19,115 INFO L226 Difference]: Without dead ends: 2750 [2022-03-03 18:41:19,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:19,115 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 108 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:19,115 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] [2022-03-03 18:41:19,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2022-03-03 18:41:19,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 1428. [2022-03-03 18:41:19,143 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) [2022-03-03 18:41:19,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 5639 transitions. [2022-03-03 18:41:19,147 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 5639 transitions. Word has length 25 [2022-03-03 18:41:19,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:19,147 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 5639 transitions. [2022-03-03 18:41:19,147 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) [2022-03-03 18:41:19,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 5639 transitions. [2022-03-03 18:41:19,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:19,149 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:19,149 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] [2022-03-03 18:41:19,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-03-03 18:41:19,149 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:19,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:19,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1298607285, now seen corresponding path program 308 times [2022-03-03 18:41:19,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:19,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998905216] [2022-03-03 18:41:19,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:19,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:19,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:19,275 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:19,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998905216] [2022-03-03 18:41:19,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998905216] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:19,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:19,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:19,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171392122] [2022-03-03 18:41:19,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:19,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:19,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:19,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:19,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:19,275 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) [2022-03-03 18:41:19,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:19,386 INFO L93 Difference]: Finished difference Result 2925 states and 10805 transitions. [2022-03-03 18:41:19,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:19,386 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:19,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:19,393 INFO L225 Difference]: With dead ends: 2925 [2022-03-03 18:41:19,393 INFO L226 Difference]: Without dead ends: 2726 [2022-03-03 18:41:19,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:19,393 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 [2022-03-03 18:41:19,393 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] [2022-03-03 18:41:19,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2022-03-03 18:41:19,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 1404. [2022-03-03 18:41:19,419 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) [2022-03-03 18:41:19,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5551 transitions. [2022-03-03 18:41:19,422 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5551 transitions. Word has length 25 [2022-03-03 18:41:19,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:19,422 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5551 transitions. [2022-03-03 18:41:19,422 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) [2022-03-03 18:41:19,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5551 transitions. [2022-03-03 18:41:19,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:19,424 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:19,424 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] [2022-03-03 18:41:19,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-03-03 18:41:19,425 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:19,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:19,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1520908853, now seen corresponding path program 309 times [2022-03-03 18:41:19,425 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:19,425 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257044115] [2022-03-03 18:41:19,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:19,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:19,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:19,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:19,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257044115] [2022-03-03 18:41:19,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257044115] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:19,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:19,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:19,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325957729] [2022-03-03 18:41:19,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:19,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:19,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:19,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:19,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:19,547 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) [2022-03-03 18:41:19,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:19,661 INFO L93 Difference]: Finished difference Result 2861 states and 10569 transitions. [2022-03-03 18:41:19,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:19,661 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:19,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:19,667 INFO L225 Difference]: With dead ends: 2861 [2022-03-03 18:41:19,667 INFO L226 Difference]: Without dead ends: 2678 [2022-03-03 18:41:19,668 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 [2022-03-03 18:41:19,668 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 109 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:19,668 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] [2022-03-03 18:41:19,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2022-03-03 18:41:19,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 1448. [2022-03-03 18:41:19,691 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) [2022-03-03 18:41:19,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5703 transitions. [2022-03-03 18:41:19,694 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5703 transitions. Word has length 25 [2022-03-03 18:41:19,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:19,694 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5703 transitions. [2022-03-03 18:41:19,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:19,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5703 transitions. [2022-03-03 18:41:19,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:19,696 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:19,697 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] [2022-03-03 18:41:19,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-03-03 18:41:19,697 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:19,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:19,697 INFO L85 PathProgramCache]: Analyzing trace with hash -2056490443, now seen corresponding path program 310 times [2022-03-03 18:41:19,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:19,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177996585] [2022-03-03 18:41:19,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:19,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:19,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:19,826 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:19,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177996585] [2022-03-03 18:41:19,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177996585] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:19,826 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:19,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:19,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848661833] [2022-03-03 18:41:19,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:19,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:19,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:19,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:19,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:19,827 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) [2022-03-03 18:41:19,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:19,928 INFO L93 Difference]: Finished difference Result 2900 states and 10672 transitions. [2022-03-03 18:41:19,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:19,929 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:19,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:19,935 INFO L225 Difference]: With dead ends: 2900 [2022-03-03 18:41:19,935 INFO L226 Difference]: Without dead ends: 2634 [2022-03-03 18:41:19,935 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 [2022-03-03 18:41:19,936 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 108 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:19,936 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] [2022-03-03 18:41:19,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2022-03-03 18:41:19,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 1404. [2022-03-03 18:41:19,962 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) [2022-03-03 18:41:19,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5531 transitions. [2022-03-03 18:41:19,965 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5531 transitions. Word has length 25 [2022-03-03 18:41:19,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:19,965 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5531 transitions. [2022-03-03 18:41:19,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:19,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5531 transitions. [2022-03-03 18:41:19,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:19,968 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:19,968 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] [2022-03-03 18:41:19,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-03-03 18:41:19,968 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:19,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:19,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1791710829, now seen corresponding path program 311 times [2022-03-03 18:41:19,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:19,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135916006] [2022-03-03 18:41:19,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:19,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:20,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:20,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:20,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135916006] [2022-03-03 18:41:20,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135916006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:20,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:20,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:20,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816148538] [2022-03-03 18:41:20,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:20,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:20,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:20,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:20,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:20,090 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) [2022-03-03 18:41:20,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:20,203 INFO L93 Difference]: Finished difference Result 2801 states and 10313 transitions. [2022-03-03 18:41:20,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:20,203 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 [2022-03-03 18:41:20,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:20,210 INFO L225 Difference]: With dead ends: 2801 [2022-03-03 18:41:20,210 INFO L226 Difference]: Without dead ends: 2626 [2022-03-03 18:41:20,210 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 [2022-03-03 18:41:20,210 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:20,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 140 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:20,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2626 states. [2022-03-03 18:41:20,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2626 to 1444. [2022-03-03 18:41:20,241 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) [2022-03-03 18:41:20,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5671 transitions. [2022-03-03 18:41:20,244 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5671 transitions. Word has length 25 [2022-03-03 18:41:20,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:20,245 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5671 transitions. [2022-03-03 18:41:20,245 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) [2022-03-03 18:41:20,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5671 transitions. [2022-03-03 18:41:20,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:20,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:20,247 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] [2022-03-03 18:41:20,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-03-03 18:41:20,248 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:20,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:20,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1573359243, now seen corresponding path program 312 times [2022-03-03 18:41:20,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:20,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941832187] [2022-03-03 18:41:20,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:20,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:20,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:20,370 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:20,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941832187] [2022-03-03 18:41:20,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941832187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:20,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:20,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:20,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625003633] [2022-03-03 18:41:20,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:20,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:20,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:20,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:20,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:20,371 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) [2022-03-03 18:41:20,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:20,470 INFO L93 Difference]: Finished difference Result 2753 states and 10113 transitions. [2022-03-03 18:41:20,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:20,470 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 [2022-03-03 18:41:20,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:20,477 INFO L225 Difference]: With dead ends: 2753 [2022-03-03 18:41:20,477 INFO L226 Difference]: Without dead ends: 2463 [2022-03-03 18:41:20,477 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 [2022-03-03 18:41:20,477 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 [2022-03-03 18:41:20,477 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] [2022-03-03 18:41:20,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2022-03-03 18:41:20,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 1376. [2022-03-03 18:41:20,500 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) [2022-03-03 18:41:20,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 5447 transitions. [2022-03-03 18:41:20,503 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 5447 transitions. Word has length 25 [2022-03-03 18:41:20,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:20,503 INFO L470 AbstractCegarLoop]: Abstraction has 1376 states and 5447 transitions. [2022-03-03 18:41:20,503 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) [2022-03-03 18:41:20,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 5447 transitions. [2022-03-03 18:41:20,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:20,505 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:20,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:20,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-03-03 18:41:20,506 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:20,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:20,506 INFO L85 PathProgramCache]: Analyzing trace with hash -895981905, now seen corresponding path program 313 times [2022-03-03 18:41:20,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:20,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617432335] [2022-03-03 18:41:20,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:20,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:20,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:20,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:20,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617432335] [2022-03-03 18:41:20,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617432335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:20,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:20,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:20,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958652434] [2022-03-03 18:41:20,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:20,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:20,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:20,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:20,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:20,622 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) [2022-03-03 18:41:20,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:20,728 INFO L93 Difference]: Finished difference Result 2713 states and 10002 transitions. [2022-03-03 18:41:20,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:20,728 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:20,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:20,733 INFO L225 Difference]: With dead ends: 2713 [2022-03-03 18:41:20,733 INFO L226 Difference]: Without dead ends: 2554 [2022-03-03 18:41:20,733 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 [2022-03-03 18:41:20,734 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 [2022-03-03 18:41:20,734 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] [2022-03-03 18:41:20,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states. [2022-03-03 18:41:20,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 1404. [2022-03-03 18:41:20,756 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) [2022-03-03 18:41:20,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5551 transitions. [2022-03-03 18:41:20,759 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5551 transitions. Word has length 25 [2022-03-03 18:41:20,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:20,759 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5551 transitions. [2022-03-03 18:41:20,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:20,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5551 transitions. [2022-03-03 18:41:20,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:20,761 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:20,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:20,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-03-03 18:41:20,761 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:20,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:20,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1809050641, now seen corresponding path program 314 times [2022-03-03 18:41:20,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:20,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790138654] [2022-03-03 18:41:20,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:20,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:20,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:20,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:20,878 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:20,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790138654] [2022-03-03 18:41:20,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790138654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:20,878 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:20,878 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:20,878 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945551213] [2022-03-03 18:41:20,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:20,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:20,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:20,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:20,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:20,879 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) [2022-03-03 18:41:20,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:20,994 INFO L93 Difference]: Finished difference Result 2743 states and 10095 transitions. [2022-03-03 18:41:20,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:20,994 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:20,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:21,000 INFO L225 Difference]: With dead ends: 2743 [2022-03-03 18:41:21,000 INFO L226 Difference]: Without dead ends: 2538 [2022-03-03 18:41:21,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:21,000 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 [2022-03-03 18:41:21,000 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] [2022-03-03 18:41:21,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-03-03 18:41:21,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 1388. [2022-03-03 18:41:21,023 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) [2022-03-03 18:41:21,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5495 transitions. [2022-03-03 18:41:21,026 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5495 transitions. Word has length 25 [2022-03-03 18:41:21,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:21,026 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5495 transitions. [2022-03-03 18:41:21,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:21,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5495 transitions. [2022-03-03 18:41:21,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:21,028 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:21,028 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] [2022-03-03 18:41:21,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-03-03 18:41:21,029 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:21,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:21,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1102789871, now seen corresponding path program 315 times [2022-03-03 18:41:21,029 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:21,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841598508] [2022-03-03 18:41:21,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:21,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:21,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:21,147 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:21,147 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841598508] [2022-03-03 18:41:21,147 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841598508] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:21,147 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:21,147 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:21,147 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847928107] [2022-03-03 18:41:21,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:21,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:21,147 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:21,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:21,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:21,149 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) [2022-03-03 18:41:21,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:21,260 INFO L93 Difference]: Finished difference Result 2707 states and 9977 transitions. [2022-03-03 18:41:21,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:21,260 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:21,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:21,266 INFO L225 Difference]: With dead ends: 2707 [2022-03-03 18:41:21,266 INFO L226 Difference]: Without dead ends: 2548 [2022-03-03 18:41:21,267 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 [2022-03-03 18:41:21,267 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 [2022-03-03 18:41:21,267 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] [2022-03-03 18:41:21,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2022-03-03 18:41:21,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 1404. [2022-03-03 18:41:21,291 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) [2022-03-03 18:41:21,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5543 transitions. [2022-03-03 18:41:21,294 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5543 transitions. Word has length 25 [2022-03-03 18:41:21,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:21,294 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5543 transitions. [2022-03-03 18:41:21,294 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) [2022-03-03 18:41:21,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5543 transitions. [2022-03-03 18:41:21,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:21,296 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:21,296 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] [2022-03-03 18:41:21,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-03-03 18:41:21,297 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:21,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:21,297 INFO L85 PathProgramCache]: Analyzing trace with hash 577706769, now seen corresponding path program 316 times [2022-03-03 18:41:21,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:21,297 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923284740] [2022-03-03 18:41:21,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:21,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:21,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:21,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:21,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923284740] [2022-03-03 18:41:21,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923284740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:21,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:21,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:21,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557414752] [2022-03-03 18:41:21,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:21,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:21,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:21,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:21,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:21,414 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) [2022-03-03 18:41:21,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:21,528 INFO L93 Difference]: Finished difference Result 2731 states and 10053 transitions. [2022-03-03 18:41:21,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:21,528 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 [2022-03-03 18:41:21,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:21,534 INFO L225 Difference]: With dead ends: 2731 [2022-03-03 18:41:21,534 INFO L226 Difference]: Without dead ends: 2532 [2022-03-03 18:41:21,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:21,535 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 101 mSDsluCounter, 191 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 [2022-03-03 18:41:21,535 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] [2022-03-03 18:41:21,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2532 states. [2022-03-03 18:41:21,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2532 to 1388. [2022-03-03 18:41:21,557 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) [2022-03-03 18:41:21,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5487 transitions. [2022-03-03 18:41:21,560 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5487 transitions. Word has length 25 [2022-03-03 18:41:21,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:21,560 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5487 transitions. [2022-03-03 18:41:21,560 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) [2022-03-03 18:41:21,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5487 transitions. [2022-03-03 18:41:21,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:21,562 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:21,562 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] [2022-03-03 18:41:21,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-03-03 18:41:21,562 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:21,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:21,562 INFO L85 PathProgramCache]: Analyzing trace with hash 314372083, now seen corresponding path program 317 times [2022-03-03 18:41:21,562 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:21,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065208871] [2022-03-03 18:41:21,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:21,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:21,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:21,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:21,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065208871] [2022-03-03 18:41:21,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065208871] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:21,684 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:21,684 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:21,684 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075656268] [2022-03-03 18:41:21,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:21,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:21,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:21,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:21,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:21,684 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) [2022-03-03 18:41:21,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:21,790 INFO L93 Difference]: Finished difference Result 2779 states and 10239 transitions. [2022-03-03 18:41:21,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:21,790 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 [2022-03-03 18:41:21,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:21,796 INFO L225 Difference]: With dead ends: 2779 [2022-03-03 18:41:21,796 INFO L226 Difference]: Without dead ends: 2590 [2022-03-03 18:41:21,796 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 [2022-03-03 18:41:21,797 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 115 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:21,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 150 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:21,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2590 states. [2022-03-03 18:41:21,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2590 to 1416. [2022-03-03 18:41:21,819 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) [2022-03-03 18:41:21,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5575 transitions. [2022-03-03 18:41:21,822 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5575 transitions. Word has length 25 [2022-03-03 18:41:21,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:21,822 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5575 transitions. [2022-03-03 18:41:21,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:21,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5575 transitions. [2022-03-03 18:41:21,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:21,825 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:21,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:21,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-03-03 18:41:21,825 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:21,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:21,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1077772463, now seen corresponding path program 318 times [2022-03-03 18:41:21,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:21,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841616515] [2022-03-03 18:41:21,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:21,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:21,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:21,937 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:21,937 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841616515] [2022-03-03 18:41:21,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841616515] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:21,937 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:21,937 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:21,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611153840] [2022-03-03 18:41:21,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:21,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:21,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:21,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:21,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:21,938 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) [2022-03-03 18:41:22,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:22,043 INFO L93 Difference]: Finished difference Result 2773 states and 10194 transitions. [2022-03-03 18:41:22,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:22,044 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 [2022-03-03 18:41:22,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:22,050 INFO L225 Difference]: With dead ends: 2773 [2022-03-03 18:41:22,050 INFO L226 Difference]: Without dead ends: 2554 [2022-03-03 18:41:22,050 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 [2022-03-03 18:41:22,050 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 116 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:22,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 139 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:22,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states. [2022-03-03 18:41:22,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 1380. [2022-03-03 18:41:22,072 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) [2022-03-03 18:41:22,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 5463 transitions. [2022-03-03 18:41:22,075 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 5463 transitions. Word has length 25 [2022-03-03 18:41:22,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:22,075 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 5463 transitions. [2022-03-03 18:41:22,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:22,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 5463 transitions. [2022-03-03 18:41:22,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:22,077 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:22,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:22,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-03-03 18:41:22,077 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:22,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:22,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1376883951, now seen corresponding path program 319 times [2022-03-03 18:41:22,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:22,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494193332] [2022-03-03 18:41:22,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:22,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:22,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:22,196 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:22,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494193332] [2022-03-03 18:41:22,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494193332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:22,196 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:22,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:22,196 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211980391] [2022-03-03 18:41:22,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:22,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:22,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:22,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:22,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:22,197 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) [2022-03-03 18:41:22,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:22,290 INFO L93 Difference]: Finished difference Result 2677 states and 9854 transitions. [2022-03-03 18:41:22,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:22,290 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:22,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:22,296 INFO L225 Difference]: With dead ends: 2677 [2022-03-03 18:41:22,296 INFO L226 Difference]: Without dead ends: 2518 [2022-03-03 18:41:22,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:22,296 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 124 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:22,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 138 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:22,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2518 states. [2022-03-03 18:41:22,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2518 to 1404. [2022-03-03 18:41:22,317 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) [2022-03-03 18:41:22,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5547 transitions. [2022-03-03 18:41:22,320 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5547 transitions. Word has length 25 [2022-03-03 18:41:22,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:22,320 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5547 transitions. [2022-03-03 18:41:22,321 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) [2022-03-03 18:41:22,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5547 transitions. [2022-03-03 18:41:22,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:22,323 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:22,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:22,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-03-03 18:41:22,323 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:22,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:22,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1328148595, now seen corresponding path program 320 times [2022-03-03 18:41:22,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:22,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632013513] [2022-03-03 18:41:22,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:22,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:22,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:22,442 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:22,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632013513] [2022-03-03 18:41:22,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632013513] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:22,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:22,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:22,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367676466] [2022-03-03 18:41:22,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:22,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:22,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:22,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:22,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:22,443 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) [2022-03-03 18:41:22,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:22,558 INFO L93 Difference]: Finished difference Result 2707 states and 9947 transitions. [2022-03-03 18:41:22,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:22,559 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 [2022-03-03 18:41:22,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:22,564 INFO L225 Difference]: With dead ends: 2707 [2022-03-03 18:41:22,564 INFO L226 Difference]: Without dead ends: 2502 [2022-03-03 18:41:22,564 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 [2022-03-03 18:41:22,564 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:22,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 158 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:22,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2502 states. [2022-03-03 18:41:22,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2502 to 1388. [2022-03-03 18:41:22,585 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) [2022-03-03 18:41:22,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5491 transitions. [2022-03-03 18:41:22,588 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5491 transitions. Word has length 25 [2022-03-03 18:41:22,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:22,588 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5491 transitions. [2022-03-03 18:41:22,588 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) [2022-03-03 18:41:22,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5491 transitions. [2022-03-03 18:41:22,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:22,590 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:22,590 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] [2022-03-03 18:41:22,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-03-03 18:41:22,590 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:22,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:22,590 INFO L85 PathProgramCache]: Analyzing trace with hash -58033519, now seen corresponding path program 321 times [2022-03-03 18:41:22,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:22,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142275380] [2022-03-03 18:41:22,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:22,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:22,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:22,710 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:22,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142275380] [2022-03-03 18:41:22,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142275380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:22,710 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:22,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:22,710 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076568652] [2022-03-03 18:41:22,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:22,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:22,710 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:22,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:22,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:22,711 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) [2022-03-03 18:41:22,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:22,802 INFO L93 Difference]: Finished difference Result 2631 states and 9689 transitions. [2022-03-03 18:41:22,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:22,802 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:22,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:22,807 INFO L225 Difference]: With dead ends: 2631 [2022-03-03 18:41:22,807 INFO L226 Difference]: Without dead ends: 2472 [2022-03-03 18:41:22,807 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 [2022-03-03 18:41:22,807 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 123 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:22,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 136 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:22,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2472 states. [2022-03-03 18:41:22,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2472 to 1404. [2022-03-03 18:41:22,827 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) [2022-03-03 18:41:22,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5539 transitions. [2022-03-03 18:41:22,830 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5539 transitions. Word has length 25 [2022-03-03 18:41:22,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:22,830 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5539 transitions. [2022-03-03 18:41:22,830 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) [2022-03-03 18:41:22,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5539 transitions. [2022-03-03 18:41:22,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:22,832 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:22,832 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] [2022-03-03 18:41:22,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-03-03 18:41:22,833 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:22,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:22,833 INFO L85 PathProgramCache]: Analyzing trace with hash -2000305519, now seen corresponding path program 322 times [2022-03-03 18:41:22,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:22,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586636807] [2022-03-03 18:41:22,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:22,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:22,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:22,952 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:22,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586636807] [2022-03-03 18:41:22,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586636807] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:22,953 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:22,953 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:22,953 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103162153] [2022-03-03 18:41:22,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:22,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:22,953 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:22,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:22,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:22,953 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) [2022-03-03 18:41:23,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:23,069 INFO L93 Difference]: Finished difference Result 2519 states and 9352 transitions. [2022-03-03 18:41:23,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:23,069 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:23,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:23,075 INFO L225 Difference]: With dead ends: 2519 [2022-03-03 18:41:23,075 INFO L226 Difference]: Without dead ends: 2328 [2022-03-03 18:41:23,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:23,075 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 96 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:23,076 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] [2022-03-03 18:41:23,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2328 states. [2022-03-03 18:41:23,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2328 to 1388. [2022-03-03 18:41:23,097 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) [2022-03-03 18:41:23,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5483 transitions. [2022-03-03 18:41:23,099 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5483 transitions. Word has length 25 [2022-03-03 18:41:23,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:23,100 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5483 transitions. [2022-03-03 18:41:23,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:23,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5483 transitions. [2022-03-03 18:41:23,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:23,102 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:23,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:23,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-03-03 18:41:23,102 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:23,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:23,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1359128435, now seen corresponding path program 323 times [2022-03-03 18:41:23,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:23,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769898868] [2022-03-03 18:41:23,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:23,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:23,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:23,225 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:23,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769898868] [2022-03-03 18:41:23,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769898868] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:23,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:23,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:23,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270576727] [2022-03-03 18:41:23,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:23,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:23,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:23,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:23,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:23,226 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) [2022-03-03 18:41:23,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:23,337 INFO L93 Difference]: Finished difference Result 2669 states and 9826 transitions. [2022-03-03 18:41:23,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:23,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:23,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:23,343 INFO L225 Difference]: With dead ends: 2669 [2022-03-03 18:41:23,343 INFO L226 Difference]: Without dead ends: 2480 [2022-03-03 18:41:23,343 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 [2022-03-03 18:41:23,343 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:23,343 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] [2022-03-03 18:41:23,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2022-03-03 18:41:23,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 1412. [2022-03-03 18:41:23,364 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) [2022-03-03 18:41:23,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5559 transitions. [2022-03-03 18:41:23,367 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5559 transitions. Word has length 25 [2022-03-03 18:41:23,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:23,367 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5559 transitions. [2022-03-03 18:41:23,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:23,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5559 transitions. [2022-03-03 18:41:23,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:23,369 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:23,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:23,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-03-03 18:41:23,369 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:23,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:23,370 INFO L85 PathProgramCache]: Analyzing trace with hash 618176337, now seen corresponding path program 324 times [2022-03-03 18:41:23,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:23,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972607007] [2022-03-03 18:41:23,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:23,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:23,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:23,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:23,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972607007] [2022-03-03 18:41:23,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972607007] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:23,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:23,523 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:23,523 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486835330] [2022-03-03 18:41:23,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:23,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:23,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:23,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:23,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:23,523 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) [2022-03-03 18:41:23,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:23,635 INFO L93 Difference]: Finished difference Result 2527 states and 9372 transitions. [2022-03-03 18:41:23,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:23,635 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:23,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:23,640 INFO L225 Difference]: With dead ends: 2527 [2022-03-03 18:41:23,640 INFO L226 Difference]: Without dead ends: 2320 [2022-03-03 18:41:23,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:23,640 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 [2022-03-03 18:41:23,640 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] [2022-03-03 18:41:23,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2022-03-03 18:41:23,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 1380. [2022-03-03 18:41:23,660 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) [2022-03-03 18:41:23,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 5459 transitions. [2022-03-03 18:41:23,663 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 5459 transitions. Word has length 25 [2022-03-03 18:41:23,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:23,663 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 5459 transitions. [2022-03-03 18:41:23,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:23,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 5459 transitions. [2022-03-03 18:41:23,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:23,665 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:23,665 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] [2022-03-03 18:41:23,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-03-03 18:41:23,665 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:23,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:23,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1325160051, now seen corresponding path program 325 times [2022-03-03 18:41:23,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:23,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903854459] [2022-03-03 18:41:23,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:23,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:23,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:23,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:23,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903854459] [2022-03-03 18:41:23,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903854459] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:23,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:23,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:23,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324986054] [2022-03-03 18:41:23,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:23,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:23,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:23,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:23,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:23,781 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) [2022-03-03 18:41:23,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:23,877 INFO L93 Difference]: Finished difference Result 2633 states and 9704 transitions. [2022-03-03 18:41:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:23,877 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:23,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:23,882 INFO L225 Difference]: With dead ends: 2633 [2022-03-03 18:41:23,882 INFO L226 Difference]: Without dead ends: 2474 [2022-03-03 18:41:23,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:23,882 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 [2022-03-03 18:41:23,882 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] [2022-03-03 18:41:23,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-03-03 18:41:23,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 1404. [2022-03-03 18:41:23,903 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) [2022-03-03 18:41:23,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5543 transitions. [2022-03-03 18:41:23,906 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5543 transitions. Word has length 25 [2022-03-03 18:41:23,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:23,906 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5543 transitions. [2022-03-03 18:41:23,906 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) [2022-03-03 18:41:23,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5543 transitions. [2022-03-03 18:41:23,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:23,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:23,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:23,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-03-03 18:41:23,908 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:23,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:23,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1289310605, now seen corresponding path program 326 times [2022-03-03 18:41:23,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:23,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413709599] [2022-03-03 18:41:23,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:23,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:24,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:24,024 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:24,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413709599] [2022-03-03 18:41:24,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413709599] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:24,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:24,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:24,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826996459] [2022-03-03 18:41:24,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:24,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:24,025 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:24,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:24,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:24,025 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) [2022-03-03 18:41:24,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:24,137 INFO L93 Difference]: Finished difference Result 2657 states and 9780 transitions. [2022-03-03 18:41:24,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:24,137 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 [2022-03-03 18:41:24,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:24,143 INFO L225 Difference]: With dead ends: 2657 [2022-03-03 18:41:24,143 INFO L226 Difference]: Without dead ends: 2458 [2022-03-03 18:41:24,143 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 [2022-03-03 18:41:24,143 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 [2022-03-03 18:41:24,143 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] [2022-03-03 18:41:24,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2022-03-03 18:41:24,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 1388. [2022-03-03 18:41:24,165 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) [2022-03-03 18:41:24,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5487 transitions. [2022-03-03 18:41:24,168 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5487 transitions. Word has length 25 [2022-03-03 18:41:24,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:24,168 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5487 transitions. [2022-03-03 18:41:24,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:24,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5487 transitions. [2022-03-03 18:41:24,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:24,170 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:24,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:24,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-03-03 18:41:24,170 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:24,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:24,170 INFO L85 PathProgramCache]: Analyzing trace with hash 478363089, now seen corresponding path program 327 times [2022-03-03 18:41:24,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:24,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357904685] [2022-03-03 18:41:24,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:24,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:24,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:24,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:24,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357904685] [2022-03-03 18:41:24,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357904685] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:24,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:24,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:24,289 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687889722] [2022-03-03 18:41:24,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:24,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:24,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:24,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:24,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:24,290 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) [2022-03-03 18:41:24,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:24,391 INFO L93 Difference]: Finished difference Result 2577 states and 9492 transitions. [2022-03-03 18:41:24,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:24,391 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 [2022-03-03 18:41:24,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:24,397 INFO L225 Difference]: With dead ends: 2577 [2022-03-03 18:41:24,397 INFO L226 Difference]: Without dead ends: 2418 [2022-03-03 18:41:24,397 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 [2022-03-03 18:41:24,397 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 [2022-03-03 18:41:24,397 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] [2022-03-03 18:41:24,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2022-03-03 18:41:24,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 1404. [2022-03-03 18:41:24,419 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) [2022-03-03 18:41:24,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5535 transitions. [2022-03-03 18:41:24,422 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5535 transitions. Word has length 25 [2022-03-03 18:41:24,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:24,422 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5535 transitions. [2022-03-03 18:41:24,422 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) [2022-03-03 18:41:24,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5535 transitions. [2022-03-03 18:41:24,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:24,424 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:24,424 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] [2022-03-03 18:41:24,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-03-03 18:41:24,424 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:24,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:24,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1120702067, now seen corresponding path program 328 times [2022-03-03 18:41:24,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:24,425 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554821366] [2022-03-03 18:41:24,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:24,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:24,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:24,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:24,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554821366] [2022-03-03 18:41:24,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554821366] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:24,545 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:24,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:24,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510112714] [2022-03-03 18:41:24,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:24,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:24,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:24,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:24,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:24,546 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) [2022-03-03 18:41:24,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:24,660 INFO L93 Difference]: Finished difference Result 2465 states and 9155 transitions. [2022-03-03 18:41:24,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:24,660 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:24,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:24,666 INFO L225 Difference]: With dead ends: 2465 [2022-03-03 18:41:24,666 INFO L226 Difference]: Without dead ends: 2274 [2022-03-03 18:41:24,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:24,666 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 94 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:24,666 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] [2022-03-03 18:41:24,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2022-03-03 18:41:24,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1388. [2022-03-03 18:41:24,686 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) [2022-03-03 18:41:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5479 transitions. [2022-03-03 18:41:24,689 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5479 transitions. Word has length 25 [2022-03-03 18:41:24,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:24,690 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5479 transitions. [2022-03-03 18:41:24,690 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) [2022-03-03 18:41:24,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5479 transitions. [2022-03-03 18:41:24,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:24,692 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:24,692 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] [2022-03-03 18:41:24,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-03-03 18:41:24,692 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:24,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:24,692 INFO L85 PathProgramCache]: Analyzing trace with hash 498071155, now seen corresponding path program 329 times [2022-03-03 18:41:24,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:24,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569887755] [2022-03-03 18:41:24,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:24,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:24,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:24,809 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:24,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569887755] [2022-03-03 18:41:24,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569887755] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:24,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:24,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:24,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026412022] [2022-03-03 18:41:24,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:24,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:24,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:24,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:24,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:24,810 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) [2022-03-03 18:41:24,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:24,915 INFO L93 Difference]: Finished difference Result 2481 states and 9227 transitions. [2022-03-03 18:41:24,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:24,915 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 [2022-03-03 18:41:24,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:24,921 INFO L225 Difference]: With dead ends: 2481 [2022-03-03 18:41:24,921 INFO L226 Difference]: Without dead ends: 2298 [2022-03-03 18:41:24,921 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 [2022-03-03 18:41:24,921 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 95 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:24,921 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] [2022-03-03 18:41:24,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2298 states. [2022-03-03 18:41:24,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2298 to 1412. [2022-03-03 18:41:24,943 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) [2022-03-03 18:41:24,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5555 transitions. [2022-03-03 18:41:24,946 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5555 transitions. Word has length 25 [2022-03-03 18:41:24,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:24,946 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5555 transitions. [2022-03-03 18:41:24,946 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) [2022-03-03 18:41:24,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5555 transitions. [2022-03-03 18:41:24,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:24,948 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:24,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:24,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-03-03 18:41:24,948 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:24,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:24,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1545265839, now seen corresponding path program 330 times [2022-03-03 18:41:24,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:24,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169166906] [2022-03-03 18:41:24,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:24,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:25,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:25,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:25,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169166906] [2022-03-03 18:41:25,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169166906] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:25,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:25,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:25,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490021344] [2022-03-03 18:41:25,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:25,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:25,070 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:25,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:25,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:25,070 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) [2022-03-03 18:41:25,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:25,167 INFO L93 Difference]: Finished difference Result 2297 states and 8614 transitions. [2022-03-03 18:41:25,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:25,167 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 [2022-03-03 18:41:25,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:25,171 INFO L225 Difference]: With dead ends: 2297 [2022-03-03 18:41:25,172 INFO L226 Difference]: Without dead ends: 2090 [2022-03-03 18:41:25,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:25,172 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 [2022-03-03 18:41:25,172 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] [2022-03-03 18:41:25,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2022-03-03 18:41:25,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 1380. [2022-03-03 18:41:25,191 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) [2022-03-03 18:41:25,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 5455 transitions. [2022-03-03 18:41:25,194 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 5455 transitions. Word has length 25 [2022-03-03 18:41:25,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:25,194 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 5455 transitions. [2022-03-03 18:41:25,194 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) [2022-03-03 18:41:25,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 5455 transitions. [2022-03-03 18:41:25,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:25,196 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:25,196 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:25,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-03-03 18:41:25,196 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:25,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:25,196 INFO L85 PathProgramCache]: Analyzing trace with hash 2049264341, now seen corresponding path program 331 times [2022-03-03 18:41:25,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:25,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802551721] [2022-03-03 18:41:25,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:25,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:25,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:25,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:25,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802551721] [2022-03-03 18:41:25,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802551721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:25,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:25,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:25,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165845607] [2022-03-03 18:41:25,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:25,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:25,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:25,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:25,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:25,322 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) [2022-03-03 18:41:25,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:25,443 INFO L93 Difference]: Finished difference Result 2717 states and 10026 transitions. [2022-03-03 18:41:25,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:25,444 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 [2022-03-03 18:41:25,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:25,449 INFO L225 Difference]: With dead ends: 2717 [2022-03-03 18:41:25,450 INFO L226 Difference]: Without dead ends: 2528 [2022-03-03 18:41:25,450 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 [2022-03-03 18:41:25,450 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 106 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:25,450 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] [2022-03-03 18:41:25,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states. [2022-03-03 18:41:25,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 1420. [2022-03-03 18:41:25,472 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) [2022-03-03 18:41:25,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5599 transitions. [2022-03-03 18:41:25,475 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5599 transitions. Word has length 25 [2022-03-03 18:41:25,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:25,475 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5599 transitions. [2022-03-03 18:41:25,475 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) [2022-03-03 18:41:25,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5599 transitions. [2022-03-03 18:41:25,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:25,477 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:25,477 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] [2022-03-03 18:41:25,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-03-03 18:41:25,477 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:25,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:25,477 INFO L85 PathProgramCache]: Analyzing trace with hash 657119795, now seen corresponding path program 332 times [2022-03-03 18:41:25,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:25,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668876120] [2022-03-03 18:41:25,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:25,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:25,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:25,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:25,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668876120] [2022-03-03 18:41:25,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668876120] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:25,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:25,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:25,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447840027] [2022-03-03 18:41:25,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:25,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:25,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:25,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:25,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:25,611 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) [2022-03-03 18:41:25,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:25,741 INFO L93 Difference]: Finished difference Result 2711 states and 9981 transitions. [2022-03-03 18:41:25,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:25,741 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:25,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:25,748 INFO L225 Difference]: With dead ends: 2711 [2022-03-03 18:41:25,748 INFO L226 Difference]: Without dead ends: 2500 [2022-03-03 18:41:25,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:25,749 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 112 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:25,749 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] [2022-03-03 18:41:25,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2500 states. [2022-03-03 18:41:25,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2500 to 1392. [2022-03-03 18:41:25,778 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) [2022-03-03 18:41:25,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5499 transitions. [2022-03-03 18:41:25,782 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5499 transitions. Word has length 25 [2022-03-03 18:41:25,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:25,782 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5499 transitions. [2022-03-03 18:41:25,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:25,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5499 transitions. [2022-03-03 18:41:25,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:25,785 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:25,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:25,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-03-03 18:41:25,785 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:25,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:25,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1202467379, now seen corresponding path program 333 times [2022-03-03 18:41:25,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:25,786 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587947059] [2022-03-03 18:41:25,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:25,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:25,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:25,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:25,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587947059] [2022-03-03 18:41:25,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587947059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:25,903 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:25,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:25,903 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768608031] [2022-03-03 18:41:25,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:25,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:25,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:25,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:25,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:25,904 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) [2022-03-03 18:41:26,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:26,023 INFO L93 Difference]: Finished difference Result 2619 states and 9649 transitions. [2022-03-03 18:41:26,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:26,023 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:26,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:26,028 INFO L225 Difference]: With dead ends: 2619 [2022-03-03 18:41:26,028 INFO L226 Difference]: Without dead ends: 2430 [2022-03-03 18:41:26,029 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 [2022-03-03 18:41:26,029 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 [2022-03-03 18:41:26,029 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] [2022-03-03 18:41:26,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2022-03-03 18:41:26,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 1416. [2022-03-03 18:41:26,050 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) [2022-03-03 18:41:26,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5575 transitions. [2022-03-03 18:41:26,053 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5575 transitions. Word has length 25 [2022-03-03 18:41:26,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:26,053 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5575 transitions. [2022-03-03 18:41:26,053 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) [2022-03-03 18:41:26,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5575 transitions. [2022-03-03 18:41:26,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:26,056 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:26,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:26,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-03-03 18:41:26,056 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:26,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:26,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1248841037, now seen corresponding path program 334 times [2022-03-03 18:41:26,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:26,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753053708] [2022-03-03 18:41:26,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:26,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:26,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:26,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:26,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753053708] [2022-03-03 18:41:26,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753053708] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:26,172 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:26,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:26,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279217801] [2022-03-03 18:41:26,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:26,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:26,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:26,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:26,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:26,173 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) [2022-03-03 18:41:26,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:26,280 INFO L93 Difference]: Finished difference Result 2477 states and 9195 transitions. [2022-03-03 18:41:26,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:26,280 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:26,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:26,285 INFO L225 Difference]: With dead ends: 2477 [2022-03-03 18:41:26,285 INFO L226 Difference]: Without dead ends: 2278 [2022-03-03 18:41:26,285 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 [2022-03-03 18:41:26,286 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 91 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:26,286 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] [2022-03-03 18:41:26,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2022-03-03 18:41:26,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 1392. [2022-03-03 18:41:26,307 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) [2022-03-03 18:41:26,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5487 transitions. [2022-03-03 18:41:26,310 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5487 transitions. Word has length 25 [2022-03-03 18:41:26,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:26,310 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5487 transitions. [2022-03-03 18:41:26,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:26,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5487 transitions. [2022-03-03 18:41:26,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:26,312 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:26,312 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] [2022-03-03 18:41:26,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-03-03 18:41:26,312 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:26,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:26,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1566724753, now seen corresponding path program 335 times [2022-03-03 18:41:26,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:26,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525166208] [2022-03-03 18:41:26,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:26,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:26,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:26,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:26,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525166208] [2022-03-03 18:41:26,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525166208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:26,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:26,449 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:26,449 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548577522] [2022-03-03 18:41:26,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:26,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:26,449 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:26,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:26,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:26,450 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) [2022-03-03 18:41:26,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:26,558 INFO L93 Difference]: Finished difference Result 2485 states and 9235 transitions. [2022-03-03 18:41:26,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:26,559 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 [2022-03-03 18:41:26,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:26,564 INFO L225 Difference]: With dead ends: 2485 [2022-03-03 18:41:26,564 INFO L226 Difference]: Without dead ends: 2302 [2022-03-03 18:41:26,564 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 [2022-03-03 18:41:26,564 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 [2022-03-03 18:41:26,564 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] [2022-03-03 18:41:26,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2022-03-03 18:41:26,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 1416. [2022-03-03 18:41:26,586 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) [2022-03-03 18:41:26,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5563 transitions. [2022-03-03 18:41:26,589 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5563 transitions. Word has length 25 [2022-03-03 18:41:26,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:26,589 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5563 transitions. [2022-03-03 18:41:26,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:26,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5563 transitions. [2022-03-03 18:41:26,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:26,591 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:26,591 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] [2022-03-03 18:41:26,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-03-03 18:41:26,592 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:26,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:26,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1647179917, now seen corresponding path program 336 times [2022-03-03 18:41:26,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:26,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003465936] [2022-03-03 18:41:26,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:26,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:26,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:26,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:26,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003465936] [2022-03-03 18:41:26,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003465936] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:26,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:26,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:26,713 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018642757] [2022-03-03 18:41:26,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:26,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:26,713 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:26,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:26,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:26,713 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) [2022-03-03 18:41:26,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:26,813 INFO L93 Difference]: Finished difference Result 2301 states and 8622 transitions. [2022-03-03 18:41:26,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:26,813 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:26,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:26,818 INFO L225 Difference]: With dead ends: 2301 [2022-03-03 18:41:26,818 INFO L226 Difference]: Without dead ends: 2086 [2022-03-03 18:41:26,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:26,818 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 [2022-03-03 18:41:26,818 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] [2022-03-03 18:41:26,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2086 states. [2022-03-03 18:41:26,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2086 to 1376. [2022-03-03 18:41:26,837 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) [2022-03-03 18:41:26,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 5445 transitions. [2022-03-03 18:41:26,840 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 5445 transitions. Word has length 25 [2022-03-03 18:41:26,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:26,840 INFO L470 AbstractCegarLoop]: Abstraction has 1376 states and 5445 transitions. [2022-03-03 18:41:26,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:26,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 5445 transitions. [2022-03-03 18:41:26,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:26,842 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:26,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:26,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-03-03 18:41:26,842 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:26,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:26,843 INFO L85 PathProgramCache]: Analyzing trace with hash 80867255, now seen corresponding path program 337 times [2022-03-03 18:41:26,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:26,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621708432] [2022-03-03 18:41:26,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:26,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:26,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:26,958 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:26,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621708432] [2022-03-03 18:41:26,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621708432] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:26,958 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:26,958 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:26,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718212942] [2022-03-03 18:41:26,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:26,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:26,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:26,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:26,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:26,959 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) [2022-03-03 18:41:27,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:27,072 INFO L93 Difference]: Finished difference Result 3065 states and 11402 transitions. [2022-03-03 18:41:27,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:27,072 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:27,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:27,079 INFO L225 Difference]: With dead ends: 3065 [2022-03-03 18:41:27,079 INFO L226 Difference]: Without dead ends: 2876 [2022-03-03 18:41:27,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:27,079 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 [2022-03-03 18:41:27,079 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] [2022-03-03 18:41:27,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2876 states. [2022-03-03 18:41:27,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 1430. [2022-03-03 18:41:27,103 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) [2022-03-03 18:41:27,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 5656 transitions. [2022-03-03 18:41:27,106 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 5656 transitions. Word has length 25 [2022-03-03 18:41:27,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:27,106 INFO L470 AbstractCegarLoop]: Abstraction has 1430 states and 5656 transitions. [2022-03-03 18:41:27,106 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) [2022-03-03 18:41:27,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 5656 transitions. [2022-03-03 18:41:27,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:27,108 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:27,108 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] [2022-03-03 18:41:27,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-03-03 18:41:27,108 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:27,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:27,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1311277291, now seen corresponding path program 338 times [2022-03-03 18:41:27,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:27,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412576264] [2022-03-03 18:41:27,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:27,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:27,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:27,225 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:27,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412576264] [2022-03-03 18:41:27,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412576264] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:27,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:27,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:27,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150677503] [2022-03-03 18:41:27,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:27,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:27,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:27,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:27,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:27,226 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) [2022-03-03 18:41:27,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:27,350 INFO L93 Difference]: Finished difference Result 3059 states and 11357 transitions. [2022-03-03 18:41:27,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:27,350 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:27,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:27,357 INFO L225 Difference]: With dead ends: 3059 [2022-03-03 18:41:27,357 INFO L226 Difference]: Without dead ends: 2848 [2022-03-03 18:41:27,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:27,357 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 [2022-03-03 18:41:27,357 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] [2022-03-03 18:41:27,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states. [2022-03-03 18:41:27,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 1402. [2022-03-03 18:41:27,380 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) [2022-03-03 18:41:27,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 5556 transitions. [2022-03-03 18:41:27,383 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 5556 transitions. Word has length 25 [2022-03-03 18:41:27,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:27,383 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 5556 transitions. [2022-03-03 18:41:27,383 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) [2022-03-03 18:41:27,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 5556 transitions. [2022-03-03 18:41:27,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:27,385 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:27,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:27,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-03-03 18:41:27,385 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:27,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:27,386 INFO L85 PathProgramCache]: Analyzing trace with hash -765929707, now seen corresponding path program 339 times [2022-03-03 18:41:27,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:27,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243434472] [2022-03-03 18:41:27,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:27,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:27,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:27,501 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:27,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243434472] [2022-03-03 18:41:27,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243434472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:27,501 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:27,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:27,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185327292] [2022-03-03 18:41:27,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:27,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:27,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:27,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:27,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:27,502 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) [2022-03-03 18:41:27,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:27,608 INFO L93 Difference]: Finished difference Result 3053 states and 11346 transitions. [2022-03-03 18:41:27,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:27,608 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:27,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:27,615 INFO L225 Difference]: With dead ends: 3053 [2022-03-03 18:41:27,615 INFO L226 Difference]: Without dead ends: 2864 [2022-03-03 18:41:27,615 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 [2022-03-03 18:41:27,615 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 [2022-03-03 18:41:27,615 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] [2022-03-03 18:41:27,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2022-03-03 18:41:27,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 1426. [2022-03-03 18:41:27,639 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) [2022-03-03 18:41:27,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 5632 transitions. [2022-03-03 18:41:27,642 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 5632 transitions. Word has length 25 [2022-03-03 18:41:27,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:27,642 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 5632 transitions. [2022-03-03 18:41:27,642 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) [2022-03-03 18:41:27,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 5632 transitions. [2022-03-03 18:41:27,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:27,644 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:27,644 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] [2022-03-03 18:41:27,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-03-03 18:41:27,644 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:27,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:27,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1077729173, now seen corresponding path program 340 times [2022-03-03 18:41:27,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:27,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67662865] [2022-03-03 18:41:27,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:27,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:27,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:27,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:27,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67662865] [2022-03-03 18:41:27,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67662865] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:27,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:27,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:27,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290279759] [2022-03-03 18:41:27,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:27,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:27,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:27,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:27,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:27,759 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) [2022-03-03 18:41:27,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:27,886 INFO L93 Difference]: Finished difference Result 3039 states and 11277 transitions. [2022-03-03 18:41:27,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:27,886 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:27,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:27,892 INFO L225 Difference]: With dead ends: 3039 [2022-03-03 18:41:27,892 INFO L226 Difference]: Without dead ends: 2840 [2022-03-03 18:41:27,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:27,893 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 [2022-03-03 18:41:27,893 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] [2022-03-03 18:41:27,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2840 states. [2022-03-03 18:41:27,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2840 to 1402. [2022-03-03 18:41:27,916 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) [2022-03-03 18:41:27,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 5544 transitions. [2022-03-03 18:41:27,919 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 5544 transitions. Word has length 25 [2022-03-03 18:41:27,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:27,919 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 5544 transitions. [2022-03-03 18:41:27,919 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) [2022-03-03 18:41:27,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 5544 transitions. [2022-03-03 18:41:27,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:27,921 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:27,921 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] [2022-03-03 18:41:27,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-03-03 18:41:27,921 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:27,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:27,921 INFO L85 PathProgramCache]: Analyzing trace with hash -401672333, now seen corresponding path program 341 times [2022-03-03 18:41:27,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:27,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269497990] [2022-03-03 18:41:27,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:27,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:28,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:28,036 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:28,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269497990] [2022-03-03 18:41:28,037 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269497990] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:28,037 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:28,037 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:28,037 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123747059] [2022-03-03 18:41:28,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:28,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:28,037 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:28,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:28,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:28,037 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) [2022-03-03 18:41:28,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:28,155 INFO L93 Difference]: Finished difference Result 3041 states and 11300 transitions. [2022-03-03 18:41:28,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:28,155 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 [2022-03-03 18:41:28,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:28,162 INFO L225 Difference]: With dead ends: 3041 [2022-03-03 18:41:28,162 INFO L226 Difference]: Without dead ends: 2858 [2022-03-03 18:41:28,162 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 [2022-03-03 18:41:28,162 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 [2022-03-03 18:41:28,162 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] [2022-03-03 18:41:28,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2858 states. [2022-03-03 18:41:28,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2858 to 1426. [2022-03-03 18:41:28,187 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) [2022-03-03 18:41:28,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 5620 transitions. [2022-03-03 18:41:28,190 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 5620 transitions. Word has length 25 [2022-03-03 18:41:28,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:28,190 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 5620 transitions. [2022-03-03 18:41:28,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:28,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 5620 transitions. [2022-03-03 18:41:28,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:28,192 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:28,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:28,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-03-03 18:41:28,192 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:28,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:28,193 INFO L85 PathProgramCache]: Analyzing trace with hash 679390293, now seen corresponding path program 342 times [2022-03-03 18:41:28,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:28,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196778196] [2022-03-03 18:41:28,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:28,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:28,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:28,310 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:28,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196778196] [2022-03-03 18:41:28,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196778196] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:28,310 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:28,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:28,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35503203] [2022-03-03 18:41:28,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:28,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:28,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:28,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:28,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:28,311 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) [2022-03-03 18:41:28,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:28,438 INFO L93 Difference]: Finished difference Result 3033 states and 11248 transitions. [2022-03-03 18:41:28,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:28,438 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 [2022-03-03 18:41:28,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:28,445 INFO L225 Difference]: With dead ends: 3033 [2022-03-03 18:41:28,446 INFO L226 Difference]: Without dead ends: 2822 [2022-03-03 18:41:28,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:28,446 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 [2022-03-03 18:41:28,446 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] [2022-03-03 18:41:28,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2022-03-03 18:41:28,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 1390. [2022-03-03 18:41:28,472 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) [2022-03-03 18:41:28,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 5506 transitions. [2022-03-03 18:41:28,475 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 5506 transitions. Word has length 25 [2022-03-03 18:41:28,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:28,475 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 5506 transitions. [2022-03-03 18:41:28,475 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) [2022-03-03 18:41:28,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 5506 transitions. [2022-03-03 18:41:28,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:28,478 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:28,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:28,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2022-03-03 18:41:28,478 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:28,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:28,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1882487659, now seen corresponding path program 343 times [2022-03-03 18:41:28,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:28,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155554584] [2022-03-03 18:41:28,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:28,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:28,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:28,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:28,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155554584] [2022-03-03 18:41:28,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155554584] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:28,599 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:28,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:28,600 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417935765] [2022-03-03 18:41:28,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:28,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:28,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:28,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:28,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:28,600 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) [2022-03-03 18:41:28,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:28,726 INFO L93 Difference]: Finished difference Result 3096 states and 11479 transitions. [2022-03-03 18:41:28,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:28,726 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 [2022-03-03 18:41:28,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:28,733 INFO L225 Difference]: With dead ends: 3096 [2022-03-03 18:41:28,733 INFO L226 Difference]: Without dead ends: 2907 [2022-03-03 18:41:28,733 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 [2022-03-03 18:41:28,734 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 [2022-03-03 18:41:28,734 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] [2022-03-03 18:41:28,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2022-03-03 18:41:28,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 1448. [2022-03-03 18:41:28,763 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) [2022-03-03 18:41:28,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5723 transitions. [2022-03-03 18:41:28,766 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5723 transitions. Word has length 25 [2022-03-03 18:41:28,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:28,766 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5723 transitions. [2022-03-03 18:41:28,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:28,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5723 transitions. [2022-03-03 18:41:28,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:28,769 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:28,769 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] [2022-03-03 18:41:28,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-03-03 18:41:28,769 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:28,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:28,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1020335091, now seen corresponding path program 344 times [2022-03-03 18:41:28,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:28,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447685883] [2022-03-03 18:41:28,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:28,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:28,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:28,895 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:28,895 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447685883] [2022-03-03 18:41:28,895 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447685883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:28,895 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:28,895 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:28,895 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162909525] [2022-03-03 18:41:28,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:28,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:28,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:28,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:28,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:28,896 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) [2022-03-03 18:41:29,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:29,009 INFO L93 Difference]: Finished difference Result 3090 states and 11434 transitions. [2022-03-03 18:41:29,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:29,009 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 [2022-03-03 18:41:29,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:29,016 INFO L225 Difference]: With dead ends: 3090 [2022-03-03 18:41:29,016 INFO L226 Difference]: Without dead ends: 2879 [2022-03-03 18:41:29,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:29,017 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 [2022-03-03 18:41:29,017 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] [2022-03-03 18:41:29,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2022-03-03 18:41:29,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 1420. [2022-03-03 18:41:29,045 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) [2022-03-03 18:41:29,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5621 transitions. [2022-03-03 18:41:29,049 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5621 transitions. Word has length 25 [2022-03-03 18:41:29,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:29,049 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5621 transitions. [2022-03-03 18:41:29,049 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) [2022-03-03 18:41:29,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5621 transitions. [2022-03-03 18:41:29,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:29,051 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:29,051 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] [2022-03-03 18:41:29,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-03-03 18:41:29,051 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:29,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:29,052 INFO L85 PathProgramCache]: Analyzing trace with hash 505592981, now seen corresponding path program 345 times [2022-03-03 18:41:29,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:29,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412156297] [2022-03-03 18:41:29,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:29,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:29,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:29,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:29,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412156297] [2022-03-03 18:41:29,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412156297] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:29,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:29,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:29,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433104784] [2022-03-03 18:41:29,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:29,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:29,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:29,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:29,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:29,197 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) [2022-03-03 18:41:29,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:29,312 INFO L93 Difference]: Finished difference Result 3170 states and 11718 transitions. [2022-03-03 18:41:29,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:29,312 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 [2022-03-03 18:41:29,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:29,320 INFO L225 Difference]: With dead ends: 3170 [2022-03-03 18:41:29,320 INFO L226 Difference]: Without dead ends: 2981 [2022-03-03 18:41:29,320 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 [2022-03-03 18:41:29,320 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 [2022-03-03 18:41:29,320 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] [2022-03-03 18:41:29,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2022-03-03 18:41:29,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 1483. [2022-03-03 18:41:29,352 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) [2022-03-03 18:41:29,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 5828 transitions. [2022-03-03 18:41:29,355 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 5828 transitions. Word has length 25 [2022-03-03 18:41:29,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:29,356 INFO L470 AbstractCegarLoop]: Abstraction has 1483 states and 5828 transitions. [2022-03-03 18:41:29,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:29,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 5828 transitions. [2022-03-03 18:41:29,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:29,358 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:29,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:29,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2022-03-03 18:41:29,358 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:29,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:29,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1237675285, now seen corresponding path program 346 times [2022-03-03 18:41:29,359 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:29,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806387436] [2022-03-03 18:41:29,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:29,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:29,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:29,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:29,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806387436] [2022-03-03 18:41:29,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806387436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:29,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:29,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:29,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875558208] [2022-03-03 18:41:29,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:29,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:29,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:29,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:29,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:29,480 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) [2022-03-03 18:41:29,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:29,592 INFO L93 Difference]: Finished difference Result 3203 states and 11801 transitions. [2022-03-03 18:41:29,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:29,592 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:29,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:29,600 INFO L225 Difference]: With dead ends: 3203 [2022-03-03 18:41:29,600 INFO L226 Difference]: Without dead ends: 2918 [2022-03-03 18:41:29,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:29,600 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 [2022-03-03 18:41:29,601 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] [2022-03-03 18:41:29,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2022-03-03 18:41:29,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 1420. [2022-03-03 18:41:29,630 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) [2022-03-03 18:41:29,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5591 transitions. [2022-03-03 18:41:29,634 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5591 transitions. Word has length 25 [2022-03-03 18:41:29,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:29,634 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5591 transitions. [2022-03-03 18:41:29,634 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) [2022-03-03 18:41:29,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5591 transitions. [2022-03-03 18:41:29,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:29,636 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:29,636 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] [2022-03-03 18:41:29,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2022-03-03 18:41:29,636 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:29,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:29,636 INFO L85 PathProgramCache]: Analyzing trace with hash 869850355, now seen corresponding path program 347 times [2022-03-03 18:41:29,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:29,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658183816] [2022-03-03 18:41:29,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:29,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:29,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:29,756 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:29,756 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658183816] [2022-03-03 18:41:29,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658183816] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:29,757 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:29,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:29,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852840944] [2022-03-03 18:41:29,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:29,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:29,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:29,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:29,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:29,757 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) [2022-03-03 18:41:29,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:29,884 INFO L93 Difference]: Finished difference Result 3139 states and 11596 transitions. [2022-03-03 18:41:29,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:29,884 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:29,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:29,890 INFO L225 Difference]: With dead ends: 3139 [2022-03-03 18:41:29,890 INFO L226 Difference]: Without dead ends: 2956 [2022-03-03 18:41:29,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:29,890 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 [2022-03-03 18:41:29,890 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] [2022-03-03 18:41:29,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2022-03-03 18:41:29,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1464. [2022-03-03 18:41:29,914 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) [2022-03-03 18:41:29,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5743 transitions. [2022-03-03 18:41:29,917 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5743 transitions. Word has length 25 [2022-03-03 18:41:29,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:29,917 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5743 transitions. [2022-03-03 18:41:29,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:29,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5743 transitions. [2022-03-03 18:41:29,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:29,919 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:29,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:29,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2022-03-03 18:41:29,919 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:29,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:29,919 INFO L85 PathProgramCache]: Analyzing trace with hash -199668651, now seen corresponding path program 348 times [2022-03-03 18:41:29,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:29,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290677989] [2022-03-03 18:41:29,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:29,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:30,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:30,038 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:30,038 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290677989] [2022-03-03 18:41:30,038 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290677989] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:30,038 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:30,038 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:30,039 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356772745] [2022-03-03 18:41:30,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:30,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:30,039 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:30,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:30,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:30,039 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) [2022-03-03 18:41:30,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:30,148 INFO L93 Difference]: Finished difference Result 3178 states and 11699 transitions. [2022-03-03 18:41:30,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:30,148 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:30,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:30,155 INFO L225 Difference]: With dead ends: 3178 [2022-03-03 18:41:30,155 INFO L226 Difference]: Without dead ends: 2882 [2022-03-03 18:41:30,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:30,155 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 [2022-03-03 18:41:30,155 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] [2022-03-03 18:41:30,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2022-03-03 18:41:30,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 1390. [2022-03-03 18:41:30,181 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) [2022-03-03 18:41:30,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 5492 transitions. [2022-03-03 18:41:30,184 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 5492 transitions. Word has length 25 [2022-03-03 18:41:30,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:30,184 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 5492 transitions. [2022-03-03 18:41:30,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:30,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 5492 transitions. [2022-03-03 18:41:30,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:30,186 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:30,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:30,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2022-03-03 18:41:30,186 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:30,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:30,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1555731571, now seen corresponding path program 349 times [2022-03-03 18:41:30,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:30,186 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589685727] [2022-03-03 18:41:30,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:30,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:30,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:30,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:30,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589685727] [2022-03-03 18:41:30,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589685727] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:30,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:30,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:30,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12601273] [2022-03-03 18:41:30,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:30,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:30,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:30,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:30,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:30,305 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) [2022-03-03 18:41:30,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:30,415 INFO L93 Difference]: Finished difference Result 3038 states and 11232 transitions. [2022-03-03 18:41:30,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:30,415 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 [2022-03-03 18:41:30,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:30,421 INFO L225 Difference]: With dead ends: 3038 [2022-03-03 18:41:30,421 INFO L226 Difference]: Without dead ends: 2849 [2022-03-03 18:41:30,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:30,421 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 [2022-03-03 18:41:30,421 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] [2022-03-03 18:41:30,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2022-03-03 18:41:30,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 1442. [2022-03-03 18:41:30,445 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) [2022-03-03 18:41:30,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 5688 transitions. [2022-03-03 18:41:30,448 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 5688 transitions. Word has length 25 [2022-03-03 18:41:30,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:30,448 INFO L470 AbstractCegarLoop]: Abstraction has 1442 states and 5688 transitions. [2022-03-03 18:41:30,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:30,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 5688 transitions. [2022-03-03 18:41:30,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:30,451 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:30,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:30,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2022-03-03 18:41:30,451 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:30,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:30,451 INFO L85 PathProgramCache]: Analyzing trace with hash -895576845, now seen corresponding path program 350 times [2022-03-03 18:41:30,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:30,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589344063] [2022-03-03 18:41:30,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:30,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:30,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:30,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:30,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589344063] [2022-03-03 18:41:30,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589344063] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:30,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:30,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:30,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661918008] [2022-03-03 18:41:30,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:30,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:30,572 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:30,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:30,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:30,573 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) [2022-03-03 18:41:30,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:30,688 INFO L93 Difference]: Finished difference Result 3024 states and 11163 transitions. [2022-03-03 18:41:30,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:30,689 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:30,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:30,694 INFO L225 Difference]: With dead ends: 3024 [2022-03-03 18:41:30,694 INFO L226 Difference]: Without dead ends: 2825 [2022-03-03 18:41:30,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:30,695 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 111 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:30,695 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] [2022-03-03 18:41:30,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2825 states. [2022-03-03 18:41:30,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2825 to 1418. [2022-03-03 18:41:30,717 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) [2022-03-03 18:41:30,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 5600 transitions. [2022-03-03 18:41:30,720 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 5600 transitions. Word has length 25 [2022-03-03 18:41:30,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:30,720 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 5600 transitions. [2022-03-03 18:41:30,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:30,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 5600 transitions. [2022-03-03 18:41:30,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:30,722 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:30,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:30,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2022-03-03 18:41:30,723 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:30,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:30,723 INFO L85 PathProgramCache]: Analyzing trace with hash 938208213, now seen corresponding path program 351 times [2022-03-03 18:41:30,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:30,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701565165] [2022-03-03 18:41:30,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:30,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:30,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:30,842 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:30,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701565165] [2022-03-03 18:41:30,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701565165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:30,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:30,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:30,842 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502262268] [2022-03-03 18:41:30,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:30,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:30,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:30,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:30,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:30,843 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) [2022-03-03 18:41:30,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:30,975 INFO L93 Difference]: Finished difference Result 3061 states and 11279 transitions. [2022-03-03 18:41:30,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:30,976 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 [2022-03-03 18:41:30,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:30,982 INFO L225 Difference]: With dead ends: 3061 [2022-03-03 18:41:30,982 INFO L226 Difference]: Without dead ends: 2872 [2022-03-03 18:41:30,982 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 [2022-03-03 18:41:30,983 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 [2022-03-03 18:41:30,983 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] [2022-03-03 18:41:30,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2022-03-03 18:41:31,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 1481. [2022-03-03 18:41:31,022 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) [2022-03-03 18:41:31,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 5807 transitions. [2022-03-03 18:41:31,026 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 5807 transitions. Word has length 25 [2022-03-03 18:41:31,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:31,026 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 5807 transitions. [2022-03-03 18:41:31,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:31,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 5807 transitions. [2022-03-03 18:41:31,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:31,028 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:31,028 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] [2022-03-03 18:41:31,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2022-03-03 18:41:31,028 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:31,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:31,029 INFO L85 PathProgramCache]: Analyzing trace with hash -785386253, now seen corresponding path program 352 times [2022-03-03 18:41:31,029 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:31,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853766885] [2022-03-03 18:41:31,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:31,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:31,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:31,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:31,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853766885] [2022-03-03 18:41:31,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853766885] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:31,146 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:31,146 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:31,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151895454] [2022-03-03 18:41:31,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:31,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:31,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:31,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:31,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:31,146 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) [2022-03-03 18:41:31,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:31,250 INFO L93 Difference]: Finished difference Result 3094 states and 11362 transitions. [2022-03-03 18:41:31,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:31,251 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 [2022-03-03 18:41:31,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:31,256 INFO L225 Difference]: With dead ends: 3094 [2022-03-03 18:41:31,256 INFO L226 Difference]: Without dead ends: 2809 [2022-03-03 18:41:31,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:31,257 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 [2022-03-03 18:41:31,257 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] [2022-03-03 18:41:31,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2809 states. [2022-03-03 18:41:31,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 1418. [2022-03-03 18:41:31,279 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) [2022-03-03 18:41:31,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 5572 transitions. [2022-03-03 18:41:31,282 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 5572 transitions. Word has length 25 [2022-03-03 18:41:31,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:31,282 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 5572 transitions. [2022-03-03 18:41:31,282 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) [2022-03-03 18:41:31,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 5572 transitions. [2022-03-03 18:41:31,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:31,284 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:31,284 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] [2022-03-03 18:41:31,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2022-03-03 18:41:31,285 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:31,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:31,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1739119245, now seen corresponding path program 353 times [2022-03-03 18:41:31,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:31,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453858688] [2022-03-03 18:41:31,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:31,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:31,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:31,399 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:31,399 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453858688] [2022-03-03 18:41:31,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453858688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:31,400 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:31,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:31,400 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722131987] [2022-03-03 18:41:31,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:31,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:31,400 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:31,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:31,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:31,400 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) [2022-03-03 18:41:31,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:31,519 INFO L93 Difference]: Finished difference Result 3010 states and 11087 transitions. [2022-03-03 18:41:31,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:31,520 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:31,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:31,526 INFO L225 Difference]: With dead ends: 3010 [2022-03-03 18:41:31,526 INFO L226 Difference]: Without dead ends: 2835 [2022-03-03 18:41:31,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:31,526 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 [2022-03-03 18:41:31,526 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] [2022-03-03 18:41:31,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2835 states. [2022-03-03 18:41:31,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2835 to 1458. [2022-03-03 18:41:31,551 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) [2022-03-03 18:41:31,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5712 transitions. [2022-03-03 18:41:31,554 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5712 transitions. Word has length 25 [2022-03-03 18:41:31,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:31,554 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5712 transitions. [2022-03-03 18:41:31,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:31,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5712 transitions. [2022-03-03 18:41:31,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:31,556 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:31,556 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] [2022-03-03 18:41:31,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2022-03-03 18:41:31,557 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:31,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:31,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1520767659, now seen corresponding path program 354 times [2022-03-03 18:41:31,557 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:31,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396436453] [2022-03-03 18:41:31,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:31,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:31,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:31,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:31,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396436453] [2022-03-03 18:41:31,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396436453] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:31,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:31,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:31,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353002464] [2022-03-03 18:41:31,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:31,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:31,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:31,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:31,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:31,680 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) [2022-03-03 18:41:31,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:31,797 INFO L93 Difference]: Finished difference Result 2962 states and 10887 transitions. [2022-03-03 18:41:31,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:31,797 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 [2022-03-03 18:41:31,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:31,802 INFO L225 Difference]: With dead ends: 2962 [2022-03-03 18:41:31,802 INFO L226 Difference]: Without dead ends: 2672 [2022-03-03 18:41:31,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:31,803 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 [2022-03-03 18:41:31,803 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] [2022-03-03 18:41:31,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2022-03-03 18:41:31,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 1390. [2022-03-03 18:41:31,824 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) [2022-03-03 18:41:31,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 5478 transitions. [2022-03-03 18:41:31,827 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 5478 transitions. Word has length 25 [2022-03-03 18:41:31,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:31,827 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 5478 transitions. [2022-03-03 18:41:31,827 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) [2022-03-03 18:41:31,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 5478 transitions. [2022-03-03 18:41:31,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:31,829 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:31,829 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] [2022-03-03 18:41:31,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2022-03-03 18:41:31,830 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:31,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:31,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1900086737, now seen corresponding path program 355 times [2022-03-03 18:41:31,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:31,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140407653] [2022-03-03 18:41:31,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:31,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:31,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:31,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:31,947 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:31,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140407653] [2022-03-03 18:41:31,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140407653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:31,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:31,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:31,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171830055] [2022-03-03 18:41:31,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:31,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:31,947 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:31,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:31,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:31,948 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) [2022-03-03 18:41:32,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:32,056 INFO L93 Difference]: Finished difference Result 2993 states and 11081 transitions. [2022-03-03 18:41:32,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:32,056 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 [2022-03-03 18:41:32,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:32,062 INFO L225 Difference]: With dead ends: 2993 [2022-03-03 18:41:32,062 INFO L226 Difference]: Without dead ends: 2810 [2022-03-03 18:41:32,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:32,062 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 122 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:32,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 134 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:32,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2022-03-03 18:41:32,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 1434. [2022-03-03 18:41:32,086 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) [2022-03-03 18:41:32,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 5646 transitions. [2022-03-03 18:41:32,089 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 5646 transitions. Word has length 25 [2022-03-03 18:41:32,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:32,089 INFO L470 AbstractCegarLoop]: Abstraction has 1434 states and 5646 transitions. [2022-03-03 18:41:32,089 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) [2022-03-03 18:41:32,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 5646 transitions. [2022-03-03 18:41:32,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:32,091 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:32,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:32,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2022-03-03 18:41:32,091 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:32,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:32,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1313817933, now seen corresponding path program 356 times [2022-03-03 18:41:32,091 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:32,091 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841219604] [2022-03-03 18:41:32,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:32,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:32,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:32,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:32,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841219604] [2022-03-03 18:41:32,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841219604] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:32,212 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:32,212 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:32,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576720476] [2022-03-03 18:41:32,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:32,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:32,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:32,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:32,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:32,212 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) [2022-03-03 18:41:32,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:32,333 INFO L93 Difference]: Finished difference Result 2985 states and 11029 transitions. [2022-03-03 18:41:32,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:32,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:32,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:32,339 INFO L225 Difference]: With dead ends: 2985 [2022-03-03 18:41:32,339 INFO L226 Difference]: Without dead ends: 2786 [2022-03-03 18:41:32,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:32,339 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 [2022-03-03 18:41:32,339 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] [2022-03-03 18:41:32,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2022-03-03 18:41:32,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 1410. [2022-03-03 18:41:32,361 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) [2022-03-03 18:41:32,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 5558 transitions. [2022-03-03 18:41:32,364 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 5558 transitions. Word has length 25 [2022-03-03 18:41:32,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:32,365 INFO L470 AbstractCegarLoop]: Abstraction has 1410 states and 5558 transitions. [2022-03-03 18:41:32,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:32,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 5558 transitions. [2022-03-03 18:41:32,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:32,367 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:32,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:32,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2022-03-03 18:41:32,367 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:32,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:32,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1282563379, now seen corresponding path program 357 times [2022-03-03 18:41:32,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:32,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528185920] [2022-03-03 18:41:32,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:32,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:32,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:32,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:32,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528185920] [2022-03-03 18:41:32,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528185920] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:32,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:32,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:32,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103129104] [2022-03-03 18:41:32,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:32,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:32,487 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:32,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:32,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:32,487 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) [2022-03-03 18:41:32,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:32,605 INFO L93 Difference]: Finished difference Result 2921 states and 10793 transitions. [2022-03-03 18:41:32,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:32,605 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 [2022-03-03 18:41:32,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:32,611 INFO L225 Difference]: With dead ends: 2921 [2022-03-03 18:41:32,611 INFO L226 Difference]: Without dead ends: 2738 [2022-03-03 18:41:32,611 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 [2022-03-03 18:41:32,611 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 [2022-03-03 18:41:32,612 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] [2022-03-03 18:41:32,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2738 states. [2022-03-03 18:41:32,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2738 to 1454. [2022-03-03 18:41:32,634 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) [2022-03-03 18:41:32,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 5710 transitions. [2022-03-03 18:41:32,637 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 5710 transitions. Word has length 25 [2022-03-03 18:41:32,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:32,637 INFO L470 AbstractCegarLoop]: Abstraction has 1454 states and 5710 transitions. [2022-03-03 18:41:32,637 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) [2022-03-03 18:41:32,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 5710 transitions. [2022-03-03 18:41:32,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:32,639 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:32,639 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] [2022-03-03 18:41:32,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2022-03-03 18:41:32,639 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:32,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:32,639 INFO L85 PathProgramCache]: Analyzing trace with hash 2052334899, now seen corresponding path program 358 times [2022-03-03 18:41:32,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:32,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098003647] [2022-03-03 18:41:32,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:32,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:32,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:32,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:32,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098003647] [2022-03-03 18:41:32,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098003647] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:32,760 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:32,760 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:32,760 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267044748] [2022-03-03 18:41:32,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:32,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:32,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:32,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:32,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:32,761 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) [2022-03-03 18:41:32,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:32,884 INFO L93 Difference]: Finished difference Result 2960 states and 10896 transitions. [2022-03-03 18:41:32,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:32,884 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:32,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:32,890 INFO L225 Difference]: With dead ends: 2960 [2022-03-03 18:41:32,890 INFO L226 Difference]: Without dead ends: 2694 [2022-03-03 18:41:32,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:32,890 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 [2022-03-03 18:41:32,890 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] [2022-03-03 18:41:32,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2022-03-03 18:41:32,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 1410. [2022-03-03 18:41:32,911 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) [2022-03-03 18:41:32,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 5538 transitions. [2022-03-03 18:41:32,914 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 5538 transitions. Word has length 25 [2022-03-03 18:41:32,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:32,914 INFO L470 AbstractCegarLoop]: Abstraction has 1410 states and 5538 transitions. [2022-03-03 18:41:32,914 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) [2022-03-03 18:41:32,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 5538 transitions. [2022-03-03 18:41:32,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:32,916 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:32,916 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] [2022-03-03 18:41:32,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2022-03-03 18:41:32,917 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:32,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:32,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1670568341, now seen corresponding path program 359 times [2022-03-03 18:41:32,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:32,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937757270] [2022-03-03 18:41:32,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:32,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:33,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:33,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:33,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937757270] [2022-03-03 18:41:33,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937757270] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:33,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:33,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:33,034 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413835826] [2022-03-03 18:41:33,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:33,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:33,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:33,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:33,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:33,035 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) [2022-03-03 18:41:33,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:33,152 INFO L93 Difference]: Finished difference Result 2861 states and 10537 transitions. [2022-03-03 18:41:33,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:33,152 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:33,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:33,158 INFO L225 Difference]: With dead ends: 2861 [2022-03-03 18:41:33,158 INFO L226 Difference]: Without dead ends: 2686 [2022-03-03 18:41:33,159 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 [2022-03-03 18:41:33,159 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 [2022-03-03 18:41:33,159 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] [2022-03-03 18:41:33,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2022-03-03 18:41:33,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 1450. [2022-03-03 18:41:33,184 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) [2022-03-03 18:41:33,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 5678 transitions. [2022-03-03 18:41:33,188 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 5678 transitions. Word has length 25 [2022-03-03 18:41:33,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:33,188 INFO L470 AbstractCegarLoop]: Abstraction has 1450 states and 5678 transitions. [2022-03-03 18:41:33,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:33,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 5678 transitions. [2022-03-03 18:41:33,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:33,190 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:33,190 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] [2022-03-03 18:41:33,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2022-03-03 18:41:33,191 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:33,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:33,191 INFO L85 PathProgramCache]: Analyzing trace with hash -150467085, now seen corresponding path program 360 times [2022-03-03 18:41:33,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:33,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207125695] [2022-03-03 18:41:33,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:33,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:33,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:33,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:33,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207125695] [2022-03-03 18:41:33,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207125695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:33,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:33,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:33,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105247658] [2022-03-03 18:41:33,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:33,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:33,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:33,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:33,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:33,313 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) [2022-03-03 18:41:33,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:33,419 INFO L93 Difference]: Finished difference Result 2813 states and 10337 transitions. [2022-03-03 18:41:33,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:33,419 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 [2022-03-03 18:41:33,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:33,425 INFO L225 Difference]: With dead ends: 2813 [2022-03-03 18:41:33,425 INFO L226 Difference]: Without dead ends: 2511 [2022-03-03 18:41:33,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:33,425 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 [2022-03-03 18:41:33,425 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] [2022-03-03 18:41:33,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2022-03-03 18:41:33,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 1370. [2022-03-03 18:41:33,446 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) [2022-03-03 18:41:33,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5429 transitions. [2022-03-03 18:41:33,449 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5429 transitions. Word has length 25 [2022-03-03 18:41:33,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:33,449 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5429 transitions. [2022-03-03 18:41:33,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:33,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5429 transitions. [2022-03-03 18:41:33,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:33,451 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:33,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:33,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2022-03-03 18:41:33,451 INFO L402 AbstractCegarLoop]: === Iteration 366 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:33,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:33,451 INFO L85 PathProgramCache]: Analyzing trace with hash -789015661, now seen corresponding path program 361 times [2022-03-03 18:41:33,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:33,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446051591] [2022-03-03 18:41:33,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:33,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:33,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:33,568 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:33,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446051591] [2022-03-03 18:41:33,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446051591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:33,568 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:33,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:33,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223503552] [2022-03-03 18:41:33,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:33,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:33,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:33,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:33,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:33,569 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) [2022-03-03 18:41:33,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:33,675 INFO L93 Difference]: Finished difference Result 2920 states and 10769 transitions. [2022-03-03 18:41:33,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:33,676 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 [2022-03-03 18:41:33,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:33,682 INFO L225 Difference]: With dead ends: 2920 [2022-03-03 18:41:33,682 INFO L226 Difference]: Without dead ends: 2761 [2022-03-03 18:41:33,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:33,682 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 [2022-03-03 18:41:33,682 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] [2022-03-03 18:41:33,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2022-03-03 18:41:33,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 1418. [2022-03-03 18:41:33,712 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) [2022-03-03 18:41:33,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 5613 transitions. [2022-03-03 18:41:33,715 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 5613 transitions. Word has length 25 [2022-03-03 18:41:33,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:33,715 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 5613 transitions. [2022-03-03 18:41:33,715 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) [2022-03-03 18:41:33,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 5613 transitions. [2022-03-03 18:41:33,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:33,717 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:33,717 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] [2022-03-03 18:41:33,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2022-03-03 18:41:33,717 INFO L402 AbstractCegarLoop]: === Iteration 367 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:33,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:33,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1797313645, now seen corresponding path program 362 times [2022-03-03 18:41:33,718 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:33,718 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260382209] [2022-03-03 18:41:33,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:33,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:33,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:33,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:33,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260382209] [2022-03-03 18:41:33,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260382209] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:33,835 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:33,835 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:33,835 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468543538] [2022-03-03 18:41:33,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:33,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:33,835 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:33,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:33,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:33,835 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) [2022-03-03 18:41:33,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:33,937 INFO L93 Difference]: Finished difference Result 2983 states and 10976 transitions. [2022-03-03 18:41:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:33,937 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 [2022-03-03 18:41:33,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:33,943 INFO L225 Difference]: With dead ends: 2983 [2022-03-03 18:41:33,943 INFO L226 Difference]: Without dead ends: 2729 [2022-03-03 18:41:33,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:33,944 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 [2022-03-03 18:41:33,944 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] [2022-03-03 18:41:33,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2022-03-03 18:41:33,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 1386. [2022-03-03 18:41:33,966 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) [2022-03-03 18:41:33,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 5485 transitions. [2022-03-03 18:41:33,969 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 5485 transitions. Word has length 25 [2022-03-03 18:41:33,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:33,969 INFO L470 AbstractCegarLoop]: Abstraction has 1386 states and 5485 transitions. [2022-03-03 18:41:33,969 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) [2022-03-03 18:41:33,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 5485 transitions. [2022-03-03 18:41:33,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:33,971 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:33,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:33,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2022-03-03 18:41:33,971 INFO L402 AbstractCegarLoop]: === Iteration 368 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:33,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:33,971 INFO L85 PathProgramCache]: Analyzing trace with hash 200017845, now seen corresponding path program 363 times [2022-03-03 18:41:33,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:33,971 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697651613] [2022-03-03 18:41:33,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:33,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:34,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:34,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:34,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697651613] [2022-03-03 18:41:34,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697651613] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:34,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:34,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:34,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94036354] [2022-03-03 18:41:34,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:34,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:34,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:34,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:34,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:34,091 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) [2022-03-03 18:41:34,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:34,195 INFO L93 Difference]: Finished difference Result 2869 states and 10570 transitions. [2022-03-03 18:41:34,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:34,195 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:34,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:34,201 INFO L225 Difference]: With dead ends: 2869 [2022-03-03 18:41:34,201 INFO L226 Difference]: Without dead ends: 2710 [2022-03-03 18:41:34,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:34,201 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 [2022-03-03 18:41:34,201 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] [2022-03-03 18:41:34,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2710 states. [2022-03-03 18:41:34,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2710 to 1402. [2022-03-03 18:41:34,223 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) [2022-03-03 18:41:34,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 5533 transitions. [2022-03-03 18:41:34,226 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 5533 transitions. Word has length 25 [2022-03-03 18:41:34,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:34,226 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 5533 transitions. [2022-03-03 18:41:34,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:34,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 5533 transitions. [2022-03-03 18:41:34,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:34,228 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:34,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:34,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2022-03-03 18:41:34,228 INFO L402 AbstractCegarLoop]: === Iteration 369 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:34,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:34,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1208315829, now seen corresponding path program 364 times [2022-03-03 18:41:34,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:34,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676665608] [2022-03-03 18:41:34,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:34,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:34,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:34,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:34,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676665608] [2022-03-03 18:41:34,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676665608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:34,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:34,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:34,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152809472] [2022-03-03 18:41:34,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:34,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:34,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:34,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:34,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:34,361 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) [2022-03-03 18:41:34,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:34,470 INFO L93 Difference]: Finished difference Result 2897 states and 10658 transitions. [2022-03-03 18:41:34,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:34,470 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 [2022-03-03 18:41:34,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:34,475 INFO L225 Difference]: With dead ends: 2897 [2022-03-03 18:41:34,476 INFO L226 Difference]: Without dead ends: 2694 [2022-03-03 18:41:34,476 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 [2022-03-03 18:41:34,476 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 113 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:34,476 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] [2022-03-03 18:41:34,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2022-03-03 18:41:34,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 1386. [2022-03-03 18:41:34,498 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) [2022-03-03 18:41:34,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 5477 transitions. [2022-03-03 18:41:34,501 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 5477 transitions. Word has length 25 [2022-03-03 18:41:34,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:34,501 INFO L470 AbstractCegarLoop]: Abstraction has 1386 states and 5477 transitions. [2022-03-03 18:41:34,501 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) [2022-03-03 18:41:34,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 5477 transitions. [2022-03-03 18:41:34,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:34,503 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:34,503 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] [2022-03-03 18:41:34,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2022-03-03 18:41:34,503 INFO L402 AbstractCegarLoop]: === Iteration 370 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:34,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:34,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1398405195, now seen corresponding path program 365 times [2022-03-03 18:41:34,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:34,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025329411] [2022-03-03 18:41:34,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:34,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:34,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:34,626 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:34,626 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025329411] [2022-03-03 18:41:34,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025329411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:34,626 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:34,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:34,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500758084] [2022-03-03 18:41:34,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:34,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:34,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:34,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:34,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:34,627 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) [2022-03-03 18:41:34,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:34,732 INFO L93 Difference]: Finished difference Result 2990 states and 11012 transitions. [2022-03-03 18:41:34,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:34,732 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 [2022-03-03 18:41:34,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:34,738 INFO L225 Difference]: With dead ends: 2990 [2022-03-03 18:41:34,738 INFO L226 Difference]: Without dead ends: 2803 [2022-03-03 18:41:34,738 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 [2022-03-03 18:41:34,738 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 [2022-03-03 18:41:34,738 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] [2022-03-03 18:41:34,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2022-03-03 18:41:34,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 1432. [2022-03-03 18:41:34,761 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) [2022-03-03 18:41:34,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5634 transitions. [2022-03-03 18:41:34,764 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5634 transitions. Word has length 25 [2022-03-03 18:41:34,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:34,764 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5634 transitions. [2022-03-03 18:41:34,764 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) [2022-03-03 18:41:34,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5634 transitions. [2022-03-03 18:41:34,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:34,766 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:34,767 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] [2022-03-03 18:41:34,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2022-03-03 18:41:34,767 INFO L402 AbstractCegarLoop]: === Iteration 371 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:34,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:34,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1751544685, now seen corresponding path program 366 times [2022-03-03 18:41:34,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:34,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294154985] [2022-03-03 18:41:34,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:34,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:34,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:34,885 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:34,885 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294154985] [2022-03-03 18:41:34,885 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294154985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:34,885 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:34,885 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:34,885 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028848915] [2022-03-03 18:41:34,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:34,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:34,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:34,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:34,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:34,886 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) [2022-03-03 18:41:34,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:34,984 INFO L93 Difference]: Finished difference Result 3025 states and 11101 transitions. [2022-03-03 18:41:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:34,984 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 [2022-03-03 18:41:34,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:34,989 INFO L225 Difference]: With dead ends: 3025 [2022-03-03 18:41:34,989 INFO L226 Difference]: Without dead ends: 2741 [2022-03-03 18:41:34,990 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 [2022-03-03 18:41:34,990 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 [2022-03-03 18:41:34,990 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] [2022-03-03 18:41:34,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-03-03 18:41:35,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1370. [2022-03-03 18:41:35,012 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) [2022-03-03 18:41:35,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5421 transitions. [2022-03-03 18:41:35,015 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5421 transitions. Word has length 25 [2022-03-03 18:41:35,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:35,015 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5421 transitions. [2022-03-03 18:41:35,015 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) [2022-03-03 18:41:35,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5421 transitions. [2022-03-03 18:41:35,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:35,017 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:35,017 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] [2022-03-03 18:41:35,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2022-03-03 18:41:35,018 INFO L402 AbstractCegarLoop]: === Iteration 372 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:35,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:35,018 INFO L85 PathProgramCache]: Analyzing trace with hash 920586101, now seen corresponding path program 367 times [2022-03-03 18:41:35,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:35,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934483278] [2022-03-03 18:41:35,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:35,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:35,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:35,138 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:35,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934483278] [2022-03-03 18:41:35,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934483278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:35,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:35,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:35,138 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925505301] [2022-03-03 18:41:35,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:35,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:35,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:35,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:35,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:35,139 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) [2022-03-03 18:41:35,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:35,233 INFO L93 Difference]: Finished difference Result 2914 states and 10742 transitions. [2022-03-03 18:41:35,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:35,233 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:35,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:35,239 INFO L225 Difference]: With dead ends: 2914 [2022-03-03 18:41:35,239 INFO L226 Difference]: Without dead ends: 2755 [2022-03-03 18:41:35,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:35,240 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 [2022-03-03 18:41:35,240 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] [2022-03-03 18:41:35,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2022-03-03 18:41:35,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 1418. [2022-03-03 18:41:35,264 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) [2022-03-03 18:41:35,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 5605 transitions. [2022-03-03 18:41:35,267 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 5605 transitions. Word has length 25 [2022-03-03 18:41:35,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:35,267 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 5605 transitions. [2022-03-03 18:41:35,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:35,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 5605 transitions. [2022-03-03 18:41:35,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:35,269 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:35,270 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] [2022-03-03 18:41:35,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2022-03-03 18:41:35,270 INFO L402 AbstractCegarLoop]: === Iteration 373 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:35,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:35,270 INFO L85 PathProgramCache]: Analyzing trace with hash -87711883, now seen corresponding path program 368 times [2022-03-03 18:41:35,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:35,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125134778] [2022-03-03 18:41:35,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:35,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:35,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:35,387 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:35,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125134778] [2022-03-03 18:41:35,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125134778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:35,387 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:35,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:35,387 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323546454] [2022-03-03 18:41:35,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:35,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:35,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:35,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:35,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:35,388 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) [2022-03-03 18:41:35,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:35,519 INFO L93 Difference]: Finished difference Result 2977 states and 10949 transitions. [2022-03-03 18:41:35,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:35,520 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:35,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:35,528 INFO L225 Difference]: With dead ends: 2977 [2022-03-03 18:41:35,528 INFO L226 Difference]: Without dead ends: 2723 [2022-03-03 18:41:35,528 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 [2022-03-03 18:41:35,528 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 [2022-03-03 18:41:35,528 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] [2022-03-03 18:41:35,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2022-03-03 18:41:35,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 1386. [2022-03-03 18:41:35,559 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) [2022-03-03 18:41:35,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 5477 transitions. [2022-03-03 18:41:35,563 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 5477 transitions. Word has length 25 [2022-03-03 18:41:35,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:35,564 INFO L470 AbstractCegarLoop]: Abstraction has 1386 states and 5477 transitions. [2022-03-03 18:41:35,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:35,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 5477 transitions. [2022-03-03 18:41:35,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:35,566 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:35,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:35,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2022-03-03 18:41:35,566 INFO L402 AbstractCegarLoop]: === Iteration 374 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:35,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:35,567 INFO L85 PathProgramCache]: Analyzing trace with hash 926338869, now seen corresponding path program 369 times [2022-03-03 18:41:35,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:35,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409231537] [2022-03-03 18:41:35,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:35,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:35,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:35,702 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:35,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409231537] [2022-03-03 18:41:35,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409231537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:35,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:35,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:35,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7277377] [2022-03-03 18:41:35,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:35,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:35,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:35,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:35,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:35,703 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) [2022-03-03 18:41:35,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:35,803 INFO L93 Difference]: Finished difference Result 2859 states and 10531 transitions. [2022-03-03 18:41:35,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:35,804 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 [2022-03-03 18:41:35,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:35,810 INFO L225 Difference]: With dead ends: 2859 [2022-03-03 18:41:35,810 INFO L226 Difference]: Without dead ends: 2700 [2022-03-03 18:41:35,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:35,810 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 [2022-03-03 18:41:35,810 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] [2022-03-03 18:41:35,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2022-03-03 18:41:35,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 1402. [2022-03-03 18:41:35,833 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) [2022-03-03 18:41:35,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 5525 transitions. [2022-03-03 18:41:35,836 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 5525 transitions. Word has length 25 [2022-03-03 18:41:35,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:35,836 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 5525 transitions. [2022-03-03 18:41:35,836 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) [2022-03-03 18:41:35,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 5525 transitions. [2022-03-03 18:41:35,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:35,838 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:35,838 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] [2022-03-03 18:41:35,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2022-03-03 18:41:35,838 INFO L402 AbstractCegarLoop]: === Iteration 375 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:35,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:35,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1688131787, now seen corresponding path program 370 times [2022-03-03 18:41:35,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:35,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365665946] [2022-03-03 18:41:35,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:35,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:35,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:35,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:35,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365665946] [2022-03-03 18:41:35,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365665946] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:35,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:35,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:35,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571311094] [2022-03-03 18:41:35,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:35,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:35,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:35,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:35,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:35,958 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) [2022-03-03 18:41:36,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:36,067 INFO L93 Difference]: Finished difference Result 2883 states and 10607 transitions. [2022-03-03 18:41:36,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:36,067 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 [2022-03-03 18:41:36,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:36,073 INFO L225 Difference]: With dead ends: 2883 [2022-03-03 18:41:36,073 INFO L226 Difference]: Without dead ends: 2684 [2022-03-03 18:41:36,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:36,073 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 114 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:36,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 139 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:36,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2022-03-03 18:41:36,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 1386. [2022-03-03 18:41:36,095 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) [2022-03-03 18:41:36,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 5469 transitions. [2022-03-03 18:41:36,098 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 5469 transitions. Word has length 25 [2022-03-03 18:41:36,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:36,098 INFO L470 AbstractCegarLoop]: Abstraction has 1386 states and 5469 transitions. [2022-03-03 18:41:36,098 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) [2022-03-03 18:41:36,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 5469 transitions. [2022-03-03 18:41:36,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:36,100 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:36,100 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] [2022-03-03 18:41:36,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2022-03-03 18:41:36,100 INFO L402 AbstractCegarLoop]: === Iteration 376 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:36,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:36,101 INFO L85 PathProgramCache]: Analyzing trace with hash 114485, now seen corresponding path program 371 times [2022-03-03 18:41:36,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:36,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375253277] [2022-03-03 18:41:36,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:36,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:36,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:36,222 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:36,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375253277] [2022-03-03 18:41:36,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375253277] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:36,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:36,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:36,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379393996] [2022-03-03 18:41:36,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:36,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:36,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:36,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:36,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:36,223 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) [2022-03-03 18:41:36,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:36,345 INFO L93 Difference]: Finished difference Result 2974 states and 10954 transitions. [2022-03-03 18:41:36,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:36,345 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:36,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:36,352 INFO L225 Difference]: With dead ends: 2974 [2022-03-03 18:41:36,352 INFO L226 Difference]: Without dead ends: 2791 [2022-03-03 18:41:36,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:36,352 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 [2022-03-03 18:41:36,352 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] [2022-03-03 18:41:36,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2022-03-03 18:41:36,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 1430. [2022-03-03 18:41:36,376 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) [2022-03-03 18:41:36,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 5621 transitions. [2022-03-03 18:41:36,397 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 5621 transitions. Word has length 25 [2022-03-03 18:41:36,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:36,397 INFO L470 AbstractCegarLoop]: Abstraction has 1430 states and 5621 transitions. [2022-03-03 18:41:36,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:36,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 5621 transitions. [2022-03-03 18:41:36,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:36,399 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:36,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:36,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2022-03-03 18:41:36,399 INFO L402 AbstractCegarLoop]: === Iteration 377 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:36,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:36,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1004217453, now seen corresponding path program 372 times [2022-03-03 18:41:36,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:36,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415477573] [2022-03-03 18:41:36,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:36,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:36,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:36,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:36,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415477573] [2022-03-03 18:41:36,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415477573] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:36,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:36,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:36,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326667700] [2022-03-03 18:41:36,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:36,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:36,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:36,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:36,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:36,518 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) [2022-03-03 18:41:36,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:36,624 INFO L93 Difference]: Finished difference Result 3013 states and 11057 transitions. [2022-03-03 18:41:36,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:36,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:36,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:36,630 INFO L225 Difference]: With dead ends: 3013 [2022-03-03 18:41:36,630 INFO L226 Difference]: Without dead ends: 2731 [2022-03-03 18:41:36,631 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 [2022-03-03 18:41:36,631 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 [2022-03-03 18:41:36,631 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] [2022-03-03 18:41:36,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2022-03-03 18:41:36,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 1370. [2022-03-03 18:41:36,653 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) [2022-03-03 18:41:36,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5413 transitions. [2022-03-03 18:41:36,656 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5413 transitions. Word has length 25 [2022-03-03 18:41:36,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:36,656 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5413 transitions. [2022-03-03 18:41:36,656 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) [2022-03-03 18:41:36,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5413 transitions. [2022-03-03 18:41:36,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:36,658 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:36,658 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] [2022-03-03 18:41:36,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2022-03-03 18:41:36,658 INFO L402 AbstractCegarLoop]: === Iteration 378 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:36,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:36,659 INFO L85 PathProgramCache]: Analyzing trace with hash 461951703, now seen corresponding path program 373 times [2022-03-03 18:41:36,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:36,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750166113] [2022-03-03 18:41:36,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:36,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:36,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:36,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:36,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750166113] [2022-03-03 18:41:36,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750166113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:36,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:36,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:36,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512412113] [2022-03-03 18:41:36,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:36,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:36,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:36,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:36,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:36,775 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) [2022-03-03 18:41:36,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:36,877 INFO L93 Difference]: Finished difference Result 2788 states and 10268 transitions. [2022-03-03 18:41:36,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:36,878 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 [2022-03-03 18:41:36,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:36,883 INFO L225 Difference]: With dead ends: 2788 [2022-03-03 18:41:36,883 INFO L226 Difference]: Without dead ends: 2629 [2022-03-03 18:41:36,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:36,884 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 [2022-03-03 18:41:36,884 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] [2022-03-03 18:41:36,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states. [2022-03-03 18:41:36,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 1394. [2022-03-03 18:41:36,906 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) [2022-03-03 18:41:36,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 5497 transitions. [2022-03-03 18:41:36,909 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 5497 transitions. Word has length 25 [2022-03-03 18:41:36,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:36,909 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 5497 transitions. [2022-03-03 18:41:36,909 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) [2022-03-03 18:41:36,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 5497 transitions. [2022-03-03 18:41:36,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:36,911 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:36,911 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] [2022-03-03 18:41:36,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2022-03-03 18:41:36,911 INFO L402 AbstractCegarLoop]: === Iteration 379 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:36,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:36,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1470249687, now seen corresponding path program 374 times [2022-03-03 18:41:36,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:36,911 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297752053] [2022-03-03 18:41:36,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:36,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:37,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:37,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:37,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297752053] [2022-03-03 18:41:37,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297752053] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:37,029 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:37,029 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:37,029 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836571973] [2022-03-03 18:41:37,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:37,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:37,029 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:37,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:37,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:37,030 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) [2022-03-03 18:41:37,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:37,140 INFO L93 Difference]: Finished difference Result 2816 states and 10356 transitions. [2022-03-03 18:41:37,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:37,140 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:37,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:37,146 INFO L225 Difference]: With dead ends: 2816 [2022-03-03 18:41:37,146 INFO L226 Difference]: Without dead ends: 2613 [2022-03-03 18:41:37,146 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 [2022-03-03 18:41:37,146 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 [2022-03-03 18:41:37,146 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] [2022-03-03 18:41:37,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2613 states. [2022-03-03 18:41:37,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2613 to 1378. [2022-03-03 18:41:37,168 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) [2022-03-03 18:41:37,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 5441 transitions. [2022-03-03 18:41:37,171 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 5441 transitions. Word has length 25 [2022-03-03 18:41:37,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:37,171 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 5441 transitions. [2022-03-03 18:41:37,171 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) [2022-03-03 18:41:37,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 5441 transitions. [2022-03-03 18:41:37,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:37,173 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:37,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:37,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2022-03-03 18:41:37,173 INFO L402 AbstractCegarLoop]: === Iteration 380 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:37,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:37,173 INFO L85 PathProgramCache]: Analyzing trace with hash -384845259, now seen corresponding path program 375 times [2022-03-03 18:41:37,173 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:37,173 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060786742] [2022-03-03 18:41:37,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:37,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:37,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:37,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:37,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060786742] [2022-03-03 18:41:37,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060786742] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:37,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:37,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:37,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132488345] [2022-03-03 18:41:37,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:37,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:37,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:37,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:37,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:37,292 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) [2022-03-03 18:41:37,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:37,386 INFO L93 Difference]: Finished difference Result 2784 states and 10248 transitions. [2022-03-03 18:41:37,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:37,386 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:37,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:37,392 INFO L225 Difference]: With dead ends: 2784 [2022-03-03 18:41:37,392 INFO L226 Difference]: Without dead ends: 2625 [2022-03-03 18:41:37,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:37,392 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 120 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:37,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 138 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:37,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2625 states. [2022-03-03 18:41:37,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2625 to 1394. [2022-03-03 18:41:37,413 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) [2022-03-03 18:41:37,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 5489 transitions. [2022-03-03 18:41:37,416 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 5489 transitions. Word has length 25 [2022-03-03 18:41:37,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:37,416 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 5489 transitions. [2022-03-03 18:41:37,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:37,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 5489 transitions. [2022-03-03 18:41:37,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:37,418 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:37,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:37,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2022-03-03 18:41:37,418 INFO L402 AbstractCegarLoop]: === Iteration 381 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:37,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:37,419 INFO L85 PathProgramCache]: Analyzing trace with hash -414704937, now seen corresponding path program 376 times [2022-03-03 18:41:37,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:37,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982309590] [2022-03-03 18:41:37,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:37,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:37,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:37,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:37,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982309590] [2022-03-03 18:41:37,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982309590] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:37,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:37,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:37,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603819400] [2022-03-03 18:41:37,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:37,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:37,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:37,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:37,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:37,537 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) [2022-03-03 18:41:37,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:37,655 INFO L93 Difference]: Finished difference Result 2808 states and 10324 transitions. [2022-03-03 18:41:37,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:37,655 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:37,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:37,660 INFO L225 Difference]: With dead ends: 2808 [2022-03-03 18:41:37,660 INFO L226 Difference]: Without dead ends: 2609 [2022-03-03 18:41:37,660 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 [2022-03-03 18:41:37,661 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:37,661 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] [2022-03-03 18:41:37,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2609 states. [2022-03-03 18:41:37,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2609 to 1378. [2022-03-03 18:41:37,683 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) [2022-03-03 18:41:37,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 5433 transitions. [2022-03-03 18:41:37,686 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 5433 transitions. Word has length 25 [2022-03-03 18:41:37,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:37,686 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 5433 transitions. [2022-03-03 18:41:37,686 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) [2022-03-03 18:41:37,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 5433 transitions. [2022-03-03 18:41:37,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:37,688 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:37,688 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] [2022-03-03 18:41:37,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2022-03-03 18:41:37,688 INFO L402 AbstractCegarLoop]: === Iteration 382 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:37,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:37,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1519817431, now seen corresponding path program 377 times [2022-03-03 18:41:37,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:37,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749527254] [2022-03-03 18:41:37,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:37,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:37,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:37,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:37,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749527254] [2022-03-03 18:41:37,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749527254] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:37,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:37,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:37,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102845501] [2022-03-03 18:41:37,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:37,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:37,808 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:37,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:37,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:37,809 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) [2022-03-03 18:41:37,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:37,929 INFO L93 Difference]: Finished difference Result 2852 states and 10500 transitions. [2022-03-03 18:41:37,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:37,929 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:37,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:37,935 INFO L225 Difference]: With dead ends: 2852 [2022-03-03 18:41:37,935 INFO L226 Difference]: Without dead ends: 2665 [2022-03-03 18:41:37,935 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 [2022-03-03 18:41:37,935 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 99 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:37,935 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] [2022-03-03 18:41:37,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2022-03-03 18:41:37,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 1406. [2022-03-03 18:41:37,958 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) [2022-03-03 18:41:37,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 5521 transitions. [2022-03-03 18:41:37,961 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 5521 transitions. Word has length 25 [2022-03-03 18:41:37,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:37,961 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 5521 transitions. [2022-03-03 18:41:37,961 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) [2022-03-03 18:41:37,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 5521 transitions. [2022-03-03 18:41:37,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:37,963 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:37,963 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] [2022-03-03 18:41:37,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2022-03-03 18:41:37,963 INFO L402 AbstractCegarLoop]: === Iteration 383 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:37,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:37,964 INFO L85 PathProgramCache]: Analyzing trace with hash -523519563, now seen corresponding path program 378 times [2022-03-03 18:41:37,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:37,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976808890] [2022-03-03 18:41:37,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:37,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:38,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:38,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:38,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976808890] [2022-03-03 18:41:38,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976808890] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:38,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:38,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:38,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921181995] [2022-03-03 18:41:38,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:38,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:38,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:38,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:38,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:38,087 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) [2022-03-03 18:41:38,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:38,215 INFO L93 Difference]: Finished difference Result 2848 states and 10460 transitions. [2022-03-03 18:41:38,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:38,215 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 [2022-03-03 18:41:38,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:38,220 INFO L225 Difference]: With dead ends: 2848 [2022-03-03 18:41:38,221 INFO L226 Difference]: Without dead ends: 2629 [2022-03-03 18:41:38,221 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 [2022-03-03 18:41:38,221 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 [2022-03-03 18:41:38,221 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] [2022-03-03 18:41:38,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states. [2022-03-03 18:41:38,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 1370. [2022-03-03 18:41:38,256 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) [2022-03-03 18:41:38,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5409 transitions. [2022-03-03 18:41:38,259 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5409 transitions. Word has length 25 [2022-03-03 18:41:38,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:38,259 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5409 transitions. [2022-03-03 18:41:38,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:38,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5409 transitions. [2022-03-03 18:41:38,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:38,262 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:38,262 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] [2022-03-03 18:41:38,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2022-03-03 18:41:38,262 INFO L402 AbstractCegarLoop]: === Iteration 384 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:38,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:38,262 INFO L85 PathProgramCache]: Analyzing trace with hash 426846935, now seen corresponding path program 379 times [2022-03-03 18:41:38,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:38,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210687195] [2022-03-03 18:41:38,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:38,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:38,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:38,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:38,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210687195] [2022-03-03 18:41:38,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210687195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:38,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:38,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:38,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766680736] [2022-03-03 18:41:38,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:38,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:38,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:38,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:38,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:38,385 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) [2022-03-03 18:41:38,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:38,503 INFO L93 Difference]: Finished difference Result 2987 states and 11039 transitions. [2022-03-03 18:41:38,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:38,504 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 [2022-03-03 18:41:38,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:38,510 INFO L225 Difference]: With dead ends: 2987 [2022-03-03 18:41:38,510 INFO L226 Difference]: Without dead ends: 2800 [2022-03-03 18:41:38,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:38,511 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 [2022-03-03 18:41:38,511 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] [2022-03-03 18:41:38,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2022-03-03 18:41:38,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 1420. [2022-03-03 18:41:38,537 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) [2022-03-03 18:41:38,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5598 transitions. [2022-03-03 18:41:38,540 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5598 transitions. Word has length 25 [2022-03-03 18:41:38,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:38,540 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5598 transitions. [2022-03-03 18:41:38,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:38,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5598 transitions. [2022-03-03 18:41:38,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:38,542 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:38,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:38,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2022-03-03 18:41:38,543 INFO L402 AbstractCegarLoop]: === Iteration 385 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:38,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:38,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1616490059, now seen corresponding path program 380 times [2022-03-03 18:41:38,543 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:38,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704682768] [2022-03-03 18:41:38,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:38,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:38,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:38,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:38,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704682768] [2022-03-03 18:41:38,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704682768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:38,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:38,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:38,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982010154] [2022-03-03 18:41:38,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:38,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:38,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:38,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:38,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:38,663 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) [2022-03-03 18:41:38,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:38,768 INFO L93 Difference]: Finished difference Result 2983 states and 10999 transitions. [2022-03-03 18:41:38,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:38,768 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:38,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:38,775 INFO L225 Difference]: With dead ends: 2983 [2022-03-03 18:41:38,775 INFO L226 Difference]: Without dead ends: 2772 [2022-03-03 18:41:38,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:38,775 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:38,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 142 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:38,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2772 states. [2022-03-03 18:41:38,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2772 to 1392. [2022-03-03 18:41:38,798 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) [2022-03-03 18:41:38,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5496 transitions. [2022-03-03 18:41:38,801 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5496 transitions. Word has length 25 [2022-03-03 18:41:38,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:38,801 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5496 transitions. [2022-03-03 18:41:38,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:38,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5496 transitions. [2022-03-03 18:41:38,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:38,803 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:38,803 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] [2022-03-03 18:41:38,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2022-03-03 18:41:38,804 INFO L402 AbstractCegarLoop]: === Iteration 386 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:38,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:38,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1631496117, now seen corresponding path program 381 times [2022-03-03 18:41:38,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:38,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078525916] [2022-03-03 18:41:38,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:38,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:38,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:38,919 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:38,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078525916] [2022-03-03 18:41:38,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078525916] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:38,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:38,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:38,919 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222652908] [2022-03-03 18:41:38,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:38,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:38,920 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:38,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:38,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:38,920 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) [2022-03-03 18:41:39,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:39,028 INFO L93 Difference]: Finished difference Result 3044 states and 11227 transitions. [2022-03-03 18:41:39,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:39,029 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 [2022-03-03 18:41:39,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:39,035 INFO L225 Difference]: With dead ends: 3044 [2022-03-03 18:41:39,035 INFO L226 Difference]: Without dead ends: 2857 [2022-03-03 18:41:39,035 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 [2022-03-03 18:41:39,035 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 117 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:39,035 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] [2022-03-03 18:41:39,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2022-03-03 18:41:39,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 1438. [2022-03-03 18:41:39,059 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) [2022-03-03 18:41:39,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 5653 transitions. [2022-03-03 18:41:39,062 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 5653 transitions. Word has length 25 [2022-03-03 18:41:39,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:39,062 INFO L470 AbstractCegarLoop]: Abstraction has 1438 states and 5653 transitions. [2022-03-03 18:41:39,062 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) [2022-03-03 18:41:39,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 5653 transitions. [2022-03-03 18:41:39,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:39,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:39,064 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] [2022-03-03 18:41:39,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2022-03-03 18:41:39,064 INFO L402 AbstractCegarLoop]: === Iteration 387 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:39,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:39,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1712385973, now seen corresponding path program 382 times [2022-03-03 18:41:39,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:39,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105678265] [2022-03-03 18:41:39,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:39,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:39,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:39,190 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:39,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105678265] [2022-03-03 18:41:39,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105678265] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:39,190 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:39,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:39,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331466705] [2022-03-03 18:41:39,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:39,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:39,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:39,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:39,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:39,191 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) [2022-03-03 18:41:39,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:39,292 INFO L93 Difference]: Finished difference Result 3079 states and 11316 transitions. [2022-03-03 18:41:39,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:39,292 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:39,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:39,297 INFO L225 Difference]: With dead ends: 3079 [2022-03-03 18:41:39,298 INFO L226 Difference]: Without dead ends: 2811 [2022-03-03 18:41:39,298 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 [2022-03-03 18:41:39,298 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 102 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:39,298 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] [2022-03-03 18:41:39,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2811 states. [2022-03-03 18:41:39,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2811 to 1392. [2022-03-03 18:41:39,320 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) [2022-03-03 18:41:39,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5474 transitions. [2022-03-03 18:41:39,323 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5474 transitions. Word has length 25 [2022-03-03 18:41:39,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:39,323 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5474 transitions. [2022-03-03 18:41:39,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:39,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5474 transitions. [2022-03-03 18:41:39,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:39,325 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:39,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:39,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2022-03-03 18:41:39,325 INFO L402 AbstractCegarLoop]: === Iteration 388 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:39,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:39,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1681123565, now seen corresponding path program 383 times [2022-03-03 18:41:39,325 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:39,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670016780] [2022-03-03 18:41:39,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:39,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:39,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:39,446 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:39,446 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670016780] [2022-03-03 18:41:39,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670016780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:39,446 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:39,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:39,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019050049] [2022-03-03 18:41:39,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:39,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:39,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:39,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:39,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:39,446 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) [2022-03-03 18:41:39,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:39,561 INFO L93 Difference]: Finished difference Result 3034 states and 11174 transitions. [2022-03-03 18:41:39,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:39,561 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:39,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:39,567 INFO L225 Difference]: With dead ends: 3034 [2022-03-03 18:41:39,567 INFO L226 Difference]: Without dead ends: 2851 [2022-03-03 18:41:39,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:39,567 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:39,567 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] [2022-03-03 18:41:39,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2022-03-03 18:41:39,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 1436. [2022-03-03 18:41:39,590 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) [2022-03-03 18:41:39,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 5626 transitions. [2022-03-03 18:41:39,593 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 5626 transitions. Word has length 25 [2022-03-03 18:41:39,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:39,593 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 5626 transitions. [2022-03-03 18:41:39,593 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) [2022-03-03 18:41:39,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 5626 transitions. [2022-03-03 18:41:39,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:39,595 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:39,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:39,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2022-03-03 18:41:39,596 INFO L402 AbstractCegarLoop]: === Iteration 389 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:39,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:39,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1544324725, now seen corresponding path program 384 times [2022-03-03 18:41:39,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:39,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123492533] [2022-03-03 18:41:39,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:39,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:39,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:39,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:39,718 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123492533] [2022-03-03 18:41:39,718 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123492533] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:39,718 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:39,718 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:39,718 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603002161] [2022-03-03 18:41:39,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:39,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:39,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:39,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:39,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:39,718 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) [2022-03-03 18:41:39,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:39,821 INFO L93 Difference]: Finished difference Result 3073 states and 11277 transitions. [2022-03-03 18:41:39,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:39,821 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:39,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:39,827 INFO L225 Difference]: With dead ends: 3073 [2022-03-03 18:41:39,827 INFO L226 Difference]: Without dead ends: 2777 [2022-03-03 18:41:39,827 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 [2022-03-03 18:41:39,827 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 98 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:39,827 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] [2022-03-03 18:41:39,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2022-03-03 18:41:39,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 1362. [2022-03-03 18:41:39,848 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) [2022-03-03 18:41:39,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 5385 transitions. [2022-03-03 18:41:39,851 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 5385 transitions. Word has length 25 [2022-03-03 18:41:39,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:39,851 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 5385 transitions. [2022-03-03 18:41:39,851 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) [2022-03-03 18:41:39,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 5385 transitions. [2022-03-03 18:41:39,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:39,853 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:39,853 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] [2022-03-03 18:41:39,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2022-03-03 18:41:39,853 INFO L402 AbstractCegarLoop]: === Iteration 390 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:39,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:39,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1460770549, now seen corresponding path program 385 times [2022-03-03 18:41:39,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:39,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138606039] [2022-03-03 18:41:39,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:39,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:39,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:39,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:39,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138606039] [2022-03-03 18:41:39,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138606039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:39,970 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:39,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:39,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133130022] [2022-03-03 18:41:39,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:39,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:39,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:39,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:39,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:39,971 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) [2022-03-03 18:41:40,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:40,084 INFO L93 Difference]: Finished difference Result 2878 states and 10584 transitions. [2022-03-03 18:41:40,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:40,084 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 [2022-03-03 18:41:40,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:40,089 INFO L225 Difference]: With dead ends: 2878 [2022-03-03 18:41:40,090 INFO L226 Difference]: Without dead ends: 2719 [2022-03-03 18:41:40,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:40,090 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 109 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:40,090 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] [2022-03-03 18:41:40,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2022-03-03 18:41:40,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 1394. [2022-03-03 18:41:40,111 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) [2022-03-03 18:41:40,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 5497 transitions. [2022-03-03 18:41:40,114 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 5497 transitions. Word has length 25 [2022-03-03 18:41:40,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:40,114 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 5497 transitions. [2022-03-03 18:41:40,115 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) [2022-03-03 18:41:40,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 5497 transitions. [2022-03-03 18:41:40,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:40,116 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:40,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:40,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2022-03-03 18:41:40,117 INFO L402 AbstractCegarLoop]: === Iteration 391 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:40,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:40,117 INFO L85 PathProgramCache]: Analyzing trace with hash 452472565, now seen corresponding path program 386 times [2022-03-03 18:41:40,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:40,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975055766] [2022-03-03 18:41:40,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:40,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:40,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:40,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:40,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975055766] [2022-03-03 18:41:40,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975055766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:40,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:40,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:40,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063856877] [2022-03-03 18:41:40,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:40,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:40,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:40,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:40,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:40,233 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) [2022-03-03 18:41:40,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:40,330 INFO L93 Difference]: Finished difference Result 2941 states and 10791 transitions. [2022-03-03 18:41:40,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:40,330 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 [2022-03-03 18:41:40,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:40,338 INFO L225 Difference]: With dead ends: 2941 [2022-03-03 18:41:40,338 INFO L226 Difference]: Without dead ends: 2687 [2022-03-03 18:41:40,338 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 [2022-03-03 18:41:40,338 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 [2022-03-03 18:41:40,338 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] [2022-03-03 18:41:40,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2022-03-03 18:41:40,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 1362. [2022-03-03 18:41:40,362 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) [2022-03-03 18:41:40,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 5369 transitions. [2022-03-03 18:41:40,365 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 5369 transitions. Word has length 25 [2022-03-03 18:41:40,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:40,365 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 5369 transitions. [2022-03-03 18:41:40,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:40,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 5369 transitions. [2022-03-03 18:41:40,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:40,367 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:40,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:40,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2022-03-03 18:41:40,368 INFO L402 AbstractCegarLoop]: === Iteration 392 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:40,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:40,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1845163241, now seen corresponding path program 387 times [2022-03-03 18:41:40,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:40,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579977510] [2022-03-03 18:41:40,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:40,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:40,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:40,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:40,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579977510] [2022-03-03 18:41:40,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579977510] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:40,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:40,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:40,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37523646] [2022-03-03 18:41:40,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:40,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:40,486 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:40,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:40,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:40,486 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) [2022-03-03 18:41:40,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:40,597 INFO L93 Difference]: Finished difference Result 2827 states and 10385 transitions. [2022-03-03 18:41:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:40,598 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:40,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:40,604 INFO L225 Difference]: With dead ends: 2827 [2022-03-03 18:41:40,604 INFO L226 Difference]: Without dead ends: 2668 [2022-03-03 18:41:40,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:40,604 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 [2022-03-03 18:41:40,604 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] [2022-03-03 18:41:40,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2022-03-03 18:41:40,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 1378. [2022-03-03 18:41:40,630 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) [2022-03-03 18:41:40,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 5417 transitions. [2022-03-03 18:41:40,633 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 5417 transitions. Word has length 25 [2022-03-03 18:41:40,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:40,633 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 5417 transitions. [2022-03-03 18:41:40,633 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) [2022-03-03 18:41:40,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 5417 transitions. [2022-03-03 18:41:40,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:40,635 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:40,635 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] [2022-03-03 18:41:40,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2022-03-03 18:41:40,635 INFO L402 AbstractCegarLoop]: === Iteration 393 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:40,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:40,635 INFO L85 PathProgramCache]: Analyzing trace with hash -836865257, now seen corresponding path program 388 times [2022-03-03 18:41:40,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:40,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860579777] [2022-03-03 18:41:40,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:40,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:40,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:40,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:40,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860579777] [2022-03-03 18:41:40,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860579777] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:40,759 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:40,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:40,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055953558] [2022-03-03 18:41:40,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:40,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:40,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:40,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:40,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:40,759 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) [2022-03-03 18:41:40,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:40,875 INFO L93 Difference]: Finished difference Result 2855 states and 10473 transitions. [2022-03-03 18:41:40,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:40,875 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 [2022-03-03 18:41:40,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:40,881 INFO L225 Difference]: With dead ends: 2855 [2022-03-03 18:41:40,881 INFO L226 Difference]: Without dead ends: 2652 [2022-03-03 18:41:40,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:40,882 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 [2022-03-03 18:41:40,882 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] [2022-03-03 18:41:40,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2652 states. [2022-03-03 18:41:40,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2652 to 1362. [2022-03-03 18:41:40,906 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) [2022-03-03 18:41:40,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 5361 transitions. [2022-03-03 18:41:40,908 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 5361 transitions. Word has length 25 [2022-03-03 18:41:40,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:40,909 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 5361 transitions. [2022-03-03 18:41:40,909 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) [2022-03-03 18:41:40,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 5361 transitions. [2022-03-03 18:41:40,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:40,911 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:40,911 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] [2022-03-03 18:41:40,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2022-03-03 18:41:40,911 INFO L402 AbstractCegarLoop]: === Iteration 394 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:40,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:40,911 INFO L85 PathProgramCache]: Analyzing trace with hash 851381015, now seen corresponding path program 389 times [2022-03-03 18:41:40,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:40,911 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722298324] [2022-03-03 18:41:40,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:40,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:41,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:41,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:41,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722298324] [2022-03-03 18:41:41,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722298324] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:41,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:41,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:41,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405552556] [2022-03-03 18:41:41,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:41,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:41,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:41,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:41,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:41,036 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) [2022-03-03 18:41:41,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:41,143 INFO L93 Difference]: Finished difference Result 2948 states and 10827 transitions. [2022-03-03 18:41:41,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:41,143 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 [2022-03-03 18:41:41,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:41,149 INFO L225 Difference]: With dead ends: 2948 [2022-03-03 18:41:41,149 INFO L226 Difference]: Without dead ends: 2761 [2022-03-03 18:41:41,149 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 [2022-03-03 18:41:41,149 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 117 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:41,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 141 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:41,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2022-03-03 18:41:41,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 1408. [2022-03-03 18:41:41,171 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) [2022-03-03 18:41:41,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 5518 transitions. [2022-03-03 18:41:41,174 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 5518 transitions. Word has length 25 [2022-03-03 18:41:41,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:41,174 INFO L470 AbstractCegarLoop]: Abstraction has 1408 states and 5518 transitions. [2022-03-03 18:41:41,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:41,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 5518 transitions. [2022-03-03 18:41:41,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:41,176 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:41,176 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:41,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2022-03-03 18:41:41,176 INFO L402 AbstractCegarLoop]: === Iteration 395 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:41,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:41,176 INFO L85 PathProgramCache]: Analyzing trace with hash 498241525, now seen corresponding path program 390 times [2022-03-03 18:41:41,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:41,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832270356] [2022-03-03 18:41:41,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:41,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:41,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:41,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:41,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832270356] [2022-03-03 18:41:41,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832270356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:41,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:41,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:41,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799114157] [2022-03-03 18:41:41,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:41,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:41,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:41,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:41,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:41,308 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) [2022-03-03 18:41:41,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:41,419 INFO L93 Difference]: Finished difference Result 2983 states and 10916 transitions. [2022-03-03 18:41:41,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:41,419 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 [2022-03-03 18:41:41,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:41,425 INFO L225 Difference]: With dead ends: 2983 [2022-03-03 18:41:41,425 INFO L226 Difference]: Without dead ends: 2699 [2022-03-03 18:41:41,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:41,425 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 [2022-03-03 18:41:41,425 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] [2022-03-03 18:41:41,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2699 states. [2022-03-03 18:41:41,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2699 to 1346. [2022-03-03 18:41:41,447 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) [2022-03-03 18:41:41,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 5305 transitions. [2022-03-03 18:41:41,450 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 5305 transitions. Word has length 25 [2022-03-03 18:41:41,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:41,450 INFO L470 AbstractCegarLoop]: Abstraction has 1346 states and 5305 transitions. [2022-03-03 18:41:41,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:41,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 5305 transitions. [2022-03-03 18:41:41,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:41,452 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:41,452 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] [2022-03-03 18:41:41,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2022-03-03 18:41:41,452 INFO L402 AbstractCegarLoop]: === Iteration 396 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:41,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:41,452 INFO L85 PathProgramCache]: Analyzing trace with hash -461570315, now seen corresponding path program 391 times [2022-03-03 18:41:41,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:41,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211068038] [2022-03-03 18:41:41,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:41,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:41,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:41,570 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:41,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211068038] [2022-03-03 18:41:41,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211068038] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:41,570 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:41,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:41,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444837574] [2022-03-03 18:41:41,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:41,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:41,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:41,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:41,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:41,571 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) [2022-03-03 18:41:41,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:41,667 INFO L93 Difference]: Finished difference Result 2828 states and 10385 transitions. [2022-03-03 18:41:41,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:41,667 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 [2022-03-03 18:41:41,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:41,673 INFO L225 Difference]: With dead ends: 2828 [2022-03-03 18:41:41,673 INFO L226 Difference]: Without dead ends: 2669 [2022-03-03 18:41:41,673 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 [2022-03-03 18:41:41,673 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 126 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:41,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 136 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:41,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2022-03-03 18:41:41,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 1394. [2022-03-03 18:41:41,694 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) [2022-03-03 18:41:41,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 5489 transitions. [2022-03-03 18:41:41,697 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 5489 transitions. Word has length 25 [2022-03-03 18:41:41,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:41,697 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 5489 transitions. [2022-03-03 18:41:41,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:41,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 5489 transitions. [2022-03-03 18:41:41,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:41,699 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:41,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:41,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2022-03-03 18:41:41,699 INFO L402 AbstractCegarLoop]: === Iteration 397 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:41,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:41,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1469868299, now seen corresponding path program 392 times [2022-03-03 18:41:41,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:41,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821688387] [2022-03-03 18:41:41,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:41,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:41,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:41,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:41,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821688387] [2022-03-03 18:41:41,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821688387] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:41,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:41,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:41,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95017510] [2022-03-03 18:41:41,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:41,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:41,827 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:41,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:41,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:41,828 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) [2022-03-03 18:41:41,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:41,925 INFO L93 Difference]: Finished difference Result 2891 states and 10592 transitions. [2022-03-03 18:41:41,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:41,925 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:41,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:41,931 INFO L225 Difference]: With dead ends: 2891 [2022-03-03 18:41:41,931 INFO L226 Difference]: Without dead ends: 2637 [2022-03-03 18:41:41,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:41,931 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 [2022-03-03 18:41:41,932 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] [2022-03-03 18:41:41,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2022-03-03 18:41:41,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 1362. [2022-03-03 18:41:41,952 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) [2022-03-03 18:41:41,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 5361 transitions. [2022-03-03 18:41:41,955 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 5361 transitions. Word has length 25 [2022-03-03 18:41:41,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:41,955 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 5361 transitions. [2022-03-03 18:41:41,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:41,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 5361 transitions. [2022-03-03 18:41:41,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:41,957 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:41,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:41,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2022-03-03 18:41:41,957 INFO L402 AbstractCegarLoop]: === Iteration 398 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:41,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:41,958 INFO L85 PathProgramCache]: Analyzing trace with hash 578987701, now seen corresponding path program 393 times [2022-03-03 18:41:41,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:41,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111893876] [2022-03-03 18:41:41,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:41,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:42,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:42,096 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:42,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111893876] [2022-03-03 18:41:42,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111893876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:42,096 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:42,096 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:42,096 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525275371] [2022-03-03 18:41:42,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:42,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:42,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:42,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:42,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:42,097 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) [2022-03-03 18:41:42,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:42,210 INFO L93 Difference]: Finished difference Result 2733 states and 10034 transitions. [2022-03-03 18:41:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:42,211 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:42,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:42,216 INFO L225 Difference]: With dead ends: 2733 [2022-03-03 18:41:42,216 INFO L226 Difference]: Without dead ends: 2574 [2022-03-03 18:41:42,216 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 [2022-03-03 18:41:42,216 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 [2022-03-03 18:41:42,217 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] [2022-03-03 18:41:42,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states. [2022-03-03 18:41:42,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 1378. [2022-03-03 18:41:42,237 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) [2022-03-03 18:41:42,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 5409 transitions. [2022-03-03 18:41:42,240 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 5409 transitions. Word has length 25 [2022-03-03 18:41:42,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:42,240 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 5409 transitions. [2022-03-03 18:41:42,240 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) [2022-03-03 18:41:42,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 5409 transitions. [2022-03-03 18:41:42,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:42,242 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:42,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:42,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2022-03-03 18:41:42,242 INFO L402 AbstractCegarLoop]: === Iteration 399 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:42,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:42,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1363284299, now seen corresponding path program 394 times [2022-03-03 18:41:42,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:42,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617237216] [2022-03-03 18:41:42,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:42,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:42,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:42,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:42,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617237216] [2022-03-03 18:41:42,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617237216] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:42,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:42,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:42,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148264324] [2022-03-03 18:41:42,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:42,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:42,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:42,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:42,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:42,360 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) [2022-03-03 18:41:42,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:42,465 INFO L93 Difference]: Finished difference Result 2621 states and 9697 transitions. [2022-03-03 18:41:42,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:42,465 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:42,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:42,470 INFO L225 Difference]: With dead ends: 2621 [2022-03-03 18:41:42,470 INFO L226 Difference]: Without dead ends: 2430 [2022-03-03 18:41:42,470 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 [2022-03-03 18:41:42,471 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 109 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:42,471 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] [2022-03-03 18:41:42,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2022-03-03 18:41:42,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 1362. [2022-03-03 18:41:42,491 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) [2022-03-03 18:41:42,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 5353 transitions. [2022-03-03 18:41:42,493 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 5353 transitions. Word has length 25 [2022-03-03 18:41:42,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:42,494 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 5353 transitions. [2022-03-03 18:41:42,494 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) [2022-03-03 18:41:42,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 5353 transitions. [2022-03-03 18:41:42,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:42,496 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:42,496 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] [2022-03-03 18:41:42,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2022-03-03 18:41:42,496 INFO L402 AbstractCegarLoop]: === Iteration 400 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:42,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:42,496 INFO L85 PathProgramCache]: Analyzing trace with hash 324961973, now seen corresponding path program 395 times [2022-03-03 18:41:42,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:42,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280337887] [2022-03-03 18:41:42,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:42,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:42,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:42,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:42,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280337887] [2022-03-03 18:41:42,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280337887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:42,615 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:42,615 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:42,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826062307] [2022-03-03 18:41:42,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:42,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:42,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:42,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:42,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:42,616 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) [2022-03-03 18:41:42,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:42,724 INFO L93 Difference]: Finished difference Result 2868 states and 10525 transitions. [2022-03-03 18:41:42,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:42,724 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:42,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:42,729 INFO L225 Difference]: With dead ends: 2868 [2022-03-03 18:41:42,730 INFO L226 Difference]: Without dead ends: 2693 [2022-03-03 18:41:42,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:42,730 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 114 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:42,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 144 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:42,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2022-03-03 18:41:42,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1402. [2022-03-03 18:41:42,751 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) [2022-03-03 18:41:42,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 5493 transitions. [2022-03-03 18:41:42,754 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 5493 transitions. Word has length 25 [2022-03-03 18:41:42,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:42,754 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 5493 transitions. [2022-03-03 18:41:42,754 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) [2022-03-03 18:41:42,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 5493 transitions. [2022-03-03 18:41:42,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:42,756 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:42,756 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:42,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2022-03-03 18:41:42,756 INFO L402 AbstractCegarLoop]: === Iteration 401 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:42,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:42,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1330562413, now seen corresponding path program 396 times [2022-03-03 18:41:42,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:42,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137674727] [2022-03-03 18:41:42,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:42,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:42,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:42,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:42,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137674727] [2022-03-03 18:41:42,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137674727] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:42,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:42,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:42,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017913619] [2022-03-03 18:41:42,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:42,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:42,875 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:42,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:42,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:42,875 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) [2022-03-03 18:41:42,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:42,977 INFO L93 Difference]: Finished difference Result 2820 states and 10325 transitions. [2022-03-03 18:41:42,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:42,977 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 [2022-03-03 18:41:42,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:42,983 INFO L225 Difference]: With dead ends: 2820 [2022-03-03 18:41:42,983 INFO L226 Difference]: Without dead ends: 2542 [2022-03-03 18:41:42,983 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 [2022-03-03 18:41:42,983 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 [2022-03-03 18:41:42,983 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] [2022-03-03 18:41:42,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2022-03-03 18:41:43,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 1346. [2022-03-03 18:41:43,005 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) [2022-03-03 18:41:43,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 5297 transitions. [2022-03-03 18:41:43,008 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 5297 transitions. Word has length 25 [2022-03-03 18:41:43,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:43,008 INFO L470 AbstractCegarLoop]: Abstraction has 1346 states and 5297 transitions. [2022-03-03 18:41:43,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:43,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 5297 transitions. [2022-03-03 18:41:43,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:43,010 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:43,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:43,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2022-03-03 18:41:43,010 INFO L402 AbstractCegarLoop]: === Iteration 402 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:43,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:43,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1623213481, now seen corresponding path program 397 times [2022-03-03 18:41:43,011 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:43,011 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214260838] [2022-03-03 18:41:43,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:43,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:43,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:43,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:43,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214260838] [2022-03-03 18:41:43,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214260838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:43,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:43,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:43,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231669520] [2022-03-03 18:41:43,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:43,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:43,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:43,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:43,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:43,132 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) [2022-03-03 18:41:43,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:43,234 INFO L93 Difference]: Finished difference Result 2718 states and 9975 transitions. [2022-03-03 18:41:43,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:43,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:43,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:43,240 INFO L225 Difference]: With dead ends: 2718 [2022-03-03 18:41:43,240 INFO L226 Difference]: Without dead ends: 2559 [2022-03-03 18:41:43,240 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 [2022-03-03 18:41:43,240 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 105 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:43,240 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] [2022-03-03 18:41:43,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2022-03-03 18:41:43,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 1370. [2022-03-03 18:41:43,262 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) [2022-03-03 18:41:43,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5381 transitions. [2022-03-03 18:41:43,265 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5381 transitions. Word has length 25 [2022-03-03 18:41:43,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:43,265 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5381 transitions. [2022-03-03 18:41:43,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:43,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5381 transitions. [2022-03-03 18:41:43,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:43,267 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:43,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:43,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2022-03-03 18:41:43,267 INFO L402 AbstractCegarLoop]: === Iteration 403 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:43,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:43,267 INFO L85 PathProgramCache]: Analyzing trace with hash -614915497, now seen corresponding path program 398 times [2022-03-03 18:41:43,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:43,268 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132880011] [2022-03-03 18:41:43,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:43,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:43,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:43,385 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:43,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132880011] [2022-03-03 18:41:43,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132880011] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:43,385 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:43,385 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:43,385 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827666869] [2022-03-03 18:41:43,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:43,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:43,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:43,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:43,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:43,386 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) [2022-03-03 18:41:43,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:43,501 INFO L93 Difference]: Finished difference Result 2746 states and 10063 transitions. [2022-03-03 18:41:43,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:43,501 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 [2022-03-03 18:41:43,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:43,507 INFO L225 Difference]: With dead ends: 2746 [2022-03-03 18:41:43,507 INFO L226 Difference]: Without dead ends: 2543 [2022-03-03 18:41:43,507 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 [2022-03-03 18:41:43,507 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 107 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:43,507 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] [2022-03-03 18:41:43,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2543 states. [2022-03-03 18:41:43,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2543 to 1354. [2022-03-03 18:41:43,530 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) [2022-03-03 18:41:43,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 5325 transitions. [2022-03-03 18:41:43,533 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 5325 transitions. Word has length 25 [2022-03-03 18:41:43,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:43,533 INFO L470 AbstractCegarLoop]: Abstraction has 1354 states and 5325 transitions. [2022-03-03 18:41:43,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:43,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 5325 transitions. [2022-03-03 18:41:43,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:43,535 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:43,536 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] [2022-03-03 18:41:43,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2022-03-03 18:41:43,536 INFO L402 AbstractCegarLoop]: === Iteration 404 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:43,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:43,536 INFO L85 PathProgramCache]: Analyzing trace with hash 555674165, now seen corresponding path program 399 times [2022-03-03 18:41:43,536 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:43,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113491648] [2022-03-03 18:41:43,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:43,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:43,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:43,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:43,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113491648] [2022-03-03 18:41:43,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113491648] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:43,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:43,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:43,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190504810] [2022-03-03 18:41:43,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:43,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:43,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:43,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:43,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:43,675 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) [2022-03-03 18:41:43,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:43,771 INFO L93 Difference]: Finished difference Result 2674 states and 9815 transitions. [2022-03-03 18:41:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:43,772 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 [2022-03-03 18:41:43,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:43,777 INFO L225 Difference]: With dead ends: 2674 [2022-03-03 18:41:43,777 INFO L226 Difference]: Without dead ends: 2515 [2022-03-03 18:41:43,777 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 [2022-03-03 18:41:43,777 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 117 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:43,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 141 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:43,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2515 states. [2022-03-03 18:41:43,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2515 to 1370. [2022-03-03 18:41:43,798 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) [2022-03-03 18:41:43,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5373 transitions. [2022-03-03 18:41:43,801 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5373 transitions. Word has length 25 [2022-03-03 18:41:43,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:43,801 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5373 transitions. [2022-03-03 18:41:43,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:43,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5373 transitions. [2022-03-03 18:41:43,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:43,803 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:43,803 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] [2022-03-03 18:41:43,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2022-03-03 18:41:43,803 INFO L402 AbstractCegarLoop]: === Iteration 405 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:43,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:43,803 INFO L85 PathProgramCache]: Analyzing trace with hash -89857449, now seen corresponding path program 400 times [2022-03-03 18:41:43,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:43,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867403487] [2022-03-03 18:41:43,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:43,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:43,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:43,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:43,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867403487] [2022-03-03 18:41:43,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867403487] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:43,918 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:43,918 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:43,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906036068] [2022-03-03 18:41:43,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:43,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:43,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:43,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:43,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:43,919 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) [2022-03-03 18:41:44,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:44,024 INFO L93 Difference]: Finished difference Result 2562 states and 9478 transitions. [2022-03-03 18:41:44,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:44,024 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 [2022-03-03 18:41:44,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:44,029 INFO L225 Difference]: With dead ends: 2562 [2022-03-03 18:41:44,029 INFO L226 Difference]: Without dead ends: 2371 [2022-03-03 18:41:44,029 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 [2022-03-03 18:41:44,029 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:44,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 151 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:44,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2022-03-03 18:41:44,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 1354. [2022-03-03 18:41:44,049 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) [2022-03-03 18:41:44,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 5317 transitions. [2022-03-03 18:41:44,052 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 5317 transitions. Word has length 25 [2022-03-03 18:41:44,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:44,052 INFO L470 AbstractCegarLoop]: Abstraction has 1354 states and 5317 transitions. [2022-03-03 18:41:44,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:44,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 5317 transitions. [2022-03-03 18:41:44,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:44,054 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:44,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:44,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2022-03-03 18:41:44,054 INFO L402 AbstractCegarLoop]: === Iteration 406 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:44,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:44,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1172466263, now seen corresponding path program 401 times [2022-03-03 18:41:44,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:44,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95700036] [2022-03-03 18:41:44,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:44,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:44,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:44,167 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:44,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95700036] [2022-03-03 18:41:44,167 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95700036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:44,167 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:44,167 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:44,167 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251105722] [2022-03-03 18:41:44,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:44,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:44,167 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:44,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:44,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:44,167 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) [2022-03-03 18:41:44,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:44,273 INFO L93 Difference]: Finished difference Result 2710 states and 9947 transitions. [2022-03-03 18:41:44,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:44,273 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 [2022-03-03 18:41:44,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:44,279 INFO L225 Difference]: With dead ends: 2710 [2022-03-03 18:41:44,279 INFO L226 Difference]: Without dead ends: 2523 [2022-03-03 18:41:44,279 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 [2022-03-03 18:41:44,279 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 107 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:44,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 142 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:44,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2022-03-03 18:41:44,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 1378. [2022-03-03 18:41:44,300 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) [2022-03-03 18:41:44,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 5393 transitions. [2022-03-03 18:41:44,303 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 5393 transitions. Word has length 25 [2022-03-03 18:41:44,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:44,303 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 5393 transitions. [2022-03-03 18:41:44,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:44,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 5393 transitions. [2022-03-03 18:41:44,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:44,305 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:44,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:44,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2022-03-03 18:41:44,305 INFO L402 AbstractCegarLoop]: === Iteration 407 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:44,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:44,305 INFO L85 PathProgramCache]: Analyzing trace with hash -219678283, now seen corresponding path program 402 times [2022-03-03 18:41:44,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:44,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956421720] [2022-03-03 18:41:44,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:44,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:44,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:44,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:44,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956421720] [2022-03-03 18:41:44,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956421720] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:44,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:44,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:44,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288021528] [2022-03-03 18:41:44,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:44,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:44,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:44,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:44,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:44,421 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) [2022-03-03 18:41:44,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:44,532 INFO L93 Difference]: Finished difference Result 2570 states and 9498 transitions. [2022-03-03 18:41:44,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:44,532 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:44,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:44,538 INFO L225 Difference]: With dead ends: 2570 [2022-03-03 18:41:44,538 INFO L226 Difference]: Without dead ends: 2363 [2022-03-03 18:41:44,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:44,538 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 99 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:44,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 149 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:44,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2363 states. [2022-03-03 18:41:44,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2363 to 1346. [2022-03-03 18:41:44,558 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) [2022-03-03 18:41:44,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 5293 transitions. [2022-03-03 18:41:44,561 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 5293 transitions. Word has length 25 [2022-03-03 18:41:44,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:44,561 INFO L470 AbstractCegarLoop]: Abstraction has 1346 states and 5293 transitions. [2022-03-03 18:41:44,561 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) [2022-03-03 18:41:44,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 5293 transitions. [2022-03-03 18:41:44,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:44,563 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:44,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:44,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2022-03-03 18:41:44,564 INFO L402 AbstractCegarLoop]: === Iteration 408 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:44,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:44,564 INFO L85 PathProgramCache]: Analyzing trace with hash 79495767, now seen corresponding path program 403 times [2022-03-03 18:41:44,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:44,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107728622] [2022-03-03 18:41:44,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:44,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:44,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:44,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:44,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107728622] [2022-03-03 18:41:44,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107728622] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:44,678 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:44,678 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:44,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113891709] [2022-03-03 18:41:44,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:44,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:44,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:44,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:44,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:44,679 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) [2022-03-03 18:41:44,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:44,780 INFO L93 Difference]: Finished difference Result 2915 states and 10741 transitions. [2022-03-03 18:41:44,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:44,781 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 [2022-03-03 18:41:44,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:44,786 INFO L225 Difference]: With dead ends: 2915 [2022-03-03 18:41:44,786 INFO L226 Difference]: Without dead ends: 2728 [2022-03-03 18:41:44,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:44,787 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 130 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:44,787 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] [2022-03-03 18:41:44,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states. [2022-03-03 18:41:44,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 1390. [2022-03-03 18:41:44,809 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) [2022-03-03 18:41:44,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 5461 transitions. [2022-03-03 18:41:44,812 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 5461 transitions. Word has length 25 [2022-03-03 18:41:44,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:44,812 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 5461 transitions. [2022-03-03 18:41:44,812 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) [2022-03-03 18:41:44,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 5461 transitions. [2022-03-03 18:41:44,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:44,814 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:44,814 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] [2022-03-03 18:41:44,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2022-03-03 18:41:44,814 INFO L402 AbstractCegarLoop]: === Iteration 409 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:44,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:44,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1312648779, now seen corresponding path program 404 times [2022-03-03 18:41:44,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:44,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939540052] [2022-03-03 18:41:44,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:44,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:44,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:44,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:44,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939540052] [2022-03-03 18:41:44,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939540052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:44,930 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:44,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:44,931 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271249161] [2022-03-03 18:41:44,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:44,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:44,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:44,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:44,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:44,931 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) [2022-03-03 18:41:45,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:45,053 INFO L93 Difference]: Finished difference Result 2903 states and 10677 transitions. [2022-03-03 18:41:45,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:45,054 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 [2022-03-03 18:41:45,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:45,061 INFO L225 Difference]: With dead ends: 2903 [2022-03-03 18:41:45,061 INFO L226 Difference]: Without dead ends: 2704 [2022-03-03 18:41:45,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:45,061 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 92 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:45,061 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] [2022-03-03 18:41:45,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2022-03-03 18:41:45,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 1366. [2022-03-03 18:41:45,084 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) [2022-03-03 18:41:45,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 5373 transitions. [2022-03-03 18:41:45,087 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 5373 transitions. Word has length 25 [2022-03-03 18:41:45,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:45,087 INFO L470 AbstractCegarLoop]: Abstraction has 1366 states and 5373 transitions. [2022-03-03 18:41:45,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:45,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 5373 transitions. [2022-03-03 18:41:45,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:45,089 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:45,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:45,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2022-03-03 18:41:45,090 INFO L402 AbstractCegarLoop]: === Iteration 410 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:45,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:45,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1741539659, now seen corresponding path program 405 times [2022-03-03 18:41:45,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:45,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001393863] [2022-03-03 18:41:45,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:45,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:45,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:45,207 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:45,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001393863] [2022-03-03 18:41:45,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001393863] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:45,207 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:45,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:45,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995879732] [2022-03-03 18:41:45,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:45,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:45,207 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:45,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:45,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:45,208 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) [2022-03-03 18:41:45,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:45,315 INFO L93 Difference]: Finished difference Result 2938 states and 10788 transitions. [2022-03-03 18:41:45,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:45,315 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 [2022-03-03 18:41:45,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:45,321 INFO L225 Difference]: With dead ends: 2938 [2022-03-03 18:41:45,321 INFO L226 Difference]: Without dead ends: 2751 [2022-03-03 18:41:45,322 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 [2022-03-03 18:41:45,322 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 110 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:45,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 142 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:45,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2751 states. [2022-03-03 18:41:45,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2751 to 1412. [2022-03-03 18:41:45,344 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) [2022-03-03 18:41:45,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5530 transitions. [2022-03-03 18:41:45,347 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5530 transitions. Word has length 25 [2022-03-03 18:41:45,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:45,347 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5530 transitions. [2022-03-03 18:41:45,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:45,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5530 transitions. [2022-03-03 18:41:45,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:45,349 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:45,349 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] [2022-03-03 18:41:45,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2022-03-03 18:41:45,349 INFO L402 AbstractCegarLoop]: === Iteration 411 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:45,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:45,349 INFO L85 PathProgramCache]: Analyzing trace with hash -372779211, now seen corresponding path program 406 times [2022-03-03 18:41:45,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:45,350 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271922779] [2022-03-03 18:41:45,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:45,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:45,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:45,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:45,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271922779] [2022-03-03 18:41:45,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271922779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:45,469 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:45,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:45,469 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593312881] [2022-03-03 18:41:45,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:45,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:45,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:45,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:45,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:45,469 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) [2022-03-03 18:41:45,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:45,576 INFO L93 Difference]: Finished difference Result 2973 states and 10877 transitions. [2022-03-03 18:41:45,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:45,577 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:45,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:45,582 INFO L225 Difference]: With dead ends: 2973 [2022-03-03 18:41:45,582 INFO L226 Difference]: Without dead ends: 2705 [2022-03-03 18:41:45,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:45,583 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 123 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:45,583 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] [2022-03-03 18:41:45,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2022-03-03 18:41:45,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 1366. [2022-03-03 18:41:45,604 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) [2022-03-03 18:41:45,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 5353 transitions. [2022-03-03 18:41:45,607 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 5353 transitions. Word has length 25 [2022-03-03 18:41:45,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:45,607 INFO L470 AbstractCegarLoop]: Abstraction has 1366 states and 5353 transitions. [2022-03-03 18:41:45,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:45,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 5353 transitions. [2022-03-03 18:41:45,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:45,609 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:45,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:45,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2022-03-03 18:41:45,609 INFO L402 AbstractCegarLoop]: === Iteration 412 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:45,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:45,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1377282285, now seen corresponding path program 407 times [2022-03-03 18:41:45,609 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:45,609 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444273142] [2022-03-03 18:41:45,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:45,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:45,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:45,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:45,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444273142] [2022-03-03 18:41:45,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444273142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:45,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:45,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:45,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599135792] [2022-03-03 18:41:45,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:45,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:45,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:45,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:45,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:45,724 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) [2022-03-03 18:41:45,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:45,829 INFO L93 Difference]: Finished difference Result 2908 states and 10665 transitions. [2022-03-03 18:41:45,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:45,829 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 [2022-03-03 18:41:45,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:45,835 INFO L225 Difference]: With dead ends: 2908 [2022-03-03 18:41:45,835 INFO L226 Difference]: Without dead ends: 2733 [2022-03-03 18:41:45,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:45,835 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 119 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:45,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 135 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:45,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2733 states. [2022-03-03 18:41:45,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2733 to 1406. [2022-03-03 18:41:45,857 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) [2022-03-03 18:41:45,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 5493 transitions. [2022-03-03 18:41:45,860 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 5493 transitions. Word has length 25 [2022-03-03 18:41:45,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:45,860 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 5493 transitions. [2022-03-03 18:41:45,860 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) [2022-03-03 18:41:45,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 5493 transitions. [2022-03-03 18:41:45,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:45,862 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:45,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:45,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2022-03-03 18:41:45,862 INFO L402 AbstractCegarLoop]: === Iteration 413 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:45,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:45,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1158930699, now seen corresponding path program 408 times [2022-03-03 18:41:45,863 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:45,863 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791686529] [2022-03-03 18:41:45,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:45,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:45,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:45,979 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:45,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791686529] [2022-03-03 18:41:45,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791686529] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:45,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:45,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:45,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962602552] [2022-03-03 18:41:45,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:45,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:45,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:45,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:45,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:45,979 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) [2022-03-03 18:41:46,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:46,082 INFO L93 Difference]: Finished difference Result 2860 states and 10465 transitions. [2022-03-03 18:41:46,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:46,082 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:46,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:46,088 INFO L225 Difference]: With dead ends: 2860 [2022-03-03 18:41:46,088 INFO L226 Difference]: Without dead ends: 2570 [2022-03-03 18:41:46,088 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 [2022-03-03 18:41:46,088 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 [2022-03-03 18:41:46,088 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] [2022-03-03 18:41:46,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2022-03-03 18:41:46,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 1338. [2022-03-03 18:41:46,109 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) [2022-03-03 18:41:46,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 5269 transitions. [2022-03-03 18:41:46,111 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 5269 transitions. Word has length 25 [2022-03-03 18:41:46,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:46,112 INFO L470 AbstractCegarLoop]: Abstraction has 1338 states and 5269 transitions. [2022-03-03 18:41:46,112 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) [2022-03-03 18:41:46,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 5269 transitions. [2022-03-03 18:41:46,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:46,113 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:46,113 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] [2022-03-03 18:41:46,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2022-03-03 18:41:46,114 INFO L402 AbstractCegarLoop]: === Iteration 414 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:46,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:46,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1225190825, now seen corresponding path program 409 times [2022-03-03 18:41:46,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:46,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000927367] [2022-03-03 18:41:46,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:46,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:46,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:46,240 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:46,240 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000927367] [2022-03-03 18:41:46,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000927367] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:46,240 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:46,240 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:46,240 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398150742] [2022-03-03 18:41:46,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:46,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:46,240 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:46,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:46,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:46,241 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) [2022-03-03 18:41:46,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:46,335 INFO L93 Difference]: Finished difference Result 2810 states and 10302 transitions. [2022-03-03 18:41:46,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:46,335 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:46,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:46,341 INFO L225 Difference]: With dead ends: 2810 [2022-03-03 18:41:46,342 INFO L226 Difference]: Without dead ends: 2651 [2022-03-03 18:41:46,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:46,342 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 130 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:46,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 133 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:46,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states. [2022-03-03 18:41:46,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 1370. [2022-03-03 18:41:46,366 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) [2022-03-03 18:41:46,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5381 transitions. [2022-03-03 18:41:46,369 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5381 transitions. Word has length 25 [2022-03-03 18:41:46,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:46,369 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5381 transitions. [2022-03-03 18:41:46,369 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) [2022-03-03 18:41:46,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5381 transitions. [2022-03-03 18:41:46,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:46,371 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:46,371 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] [2022-03-03 18:41:46,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2022-03-03 18:41:46,371 INFO L402 AbstractCegarLoop]: === Iteration 415 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:46,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:46,371 INFO L85 PathProgramCache]: Analyzing trace with hash 2061478487, now seen corresponding path program 410 times [2022-03-03 18:41:46,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:46,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9765895] [2022-03-03 18:41:46,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:46,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:46,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:46,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:46,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9765895] [2022-03-03 18:41:46,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9765895] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:46,491 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:46,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:46,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257206393] [2022-03-03 18:41:46,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:46,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:46,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:46,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:46,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:46,492 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) [2022-03-03 18:41:46,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:46,589 INFO L93 Difference]: Finished difference Result 2873 states and 10509 transitions. [2022-03-03 18:41:46,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:46,590 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 [2022-03-03 18:41:46,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:46,595 INFO L225 Difference]: With dead ends: 2873 [2022-03-03 18:41:46,595 INFO L226 Difference]: Without dead ends: 2619 [2022-03-03 18:41:46,595 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 [2022-03-03 18:41:46,595 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 120 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:46,595 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] [2022-03-03 18:41:46,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2022-03-03 18:41:46,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 1338. [2022-03-03 18:41:46,617 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) [2022-03-03 18:41:46,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 5253 transitions. [2022-03-03 18:41:46,620 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 5253 transitions. Word has length 25 [2022-03-03 18:41:46,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:46,620 INFO L470 AbstractCegarLoop]: Abstraction has 1338 states and 5253 transitions. [2022-03-03 18:41:46,620 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) [2022-03-03 18:41:46,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 5253 transitions. [2022-03-03 18:41:46,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:46,622 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:46,622 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] [2022-03-03 18:41:46,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2022-03-03 18:41:46,622 INFO L402 AbstractCegarLoop]: === Iteration 416 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:46,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:46,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1219438057, now seen corresponding path program 411 times [2022-03-03 18:41:46,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:46,623 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513692869] [2022-03-03 18:41:46,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:46,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:46,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:46,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:46,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513692869] [2022-03-03 18:41:46,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513692869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:46,751 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:46,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:46,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796283900] [2022-03-03 18:41:46,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:46,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:46,751 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:46,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:46,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:46,751 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) [2022-03-03 18:41:46,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:46,875 INFO L93 Difference]: Finished difference Result 2755 states and 10091 transitions. [2022-03-03 18:41:46,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:46,875 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 [2022-03-03 18:41:46,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:46,881 INFO L225 Difference]: With dead ends: 2755 [2022-03-03 18:41:46,881 INFO L226 Difference]: Without dead ends: 2596 [2022-03-03 18:41:46,881 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 [2022-03-03 18:41:46,881 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 112 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:46,881 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] [2022-03-03 18:41:46,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2596 states. [2022-03-03 18:41:46,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2596 to 1354. [2022-03-03 18:41:46,904 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) [2022-03-03 18:41:46,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 5301 transitions. [2022-03-03 18:41:46,907 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 5301 transitions. Word has length 25 [2022-03-03 18:41:46,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:46,907 INFO L470 AbstractCegarLoop]: Abstraction has 1354 states and 5301 transitions. [2022-03-03 18:41:46,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:46,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 5301 transitions. [2022-03-03 18:41:46,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:46,909 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:46,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:46,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2022-03-03 18:41:46,909 INFO L402 AbstractCegarLoop]: === Iteration 417 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:46,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:46,910 INFO L85 PathProgramCache]: Analyzing trace with hash 461058583, now seen corresponding path program 412 times [2022-03-03 18:41:46,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:46,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920555230] [2022-03-03 18:41:46,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:46,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:47,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:47,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:47,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920555230] [2022-03-03 18:41:47,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920555230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:47,036 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:47,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:47,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254422440] [2022-03-03 18:41:47,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:47,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:47,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:47,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:47,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:47,036 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) [2022-03-03 18:41:47,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:47,148 INFO L93 Difference]: Finished difference Result 2779 states and 10167 transitions. [2022-03-03 18:41:47,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:47,148 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:47,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:47,154 INFO L225 Difference]: With dead ends: 2779 [2022-03-03 18:41:47,154 INFO L226 Difference]: Without dead ends: 2580 [2022-03-03 18:41:47,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:47,154 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 [2022-03-03 18:41:47,154 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] [2022-03-03 18:41:47,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2022-03-03 18:41:47,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 1338. [2022-03-03 18:41:47,176 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) [2022-03-03 18:41:47,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 5245 transitions. [2022-03-03 18:41:47,179 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 5245 transitions. Word has length 25 [2022-03-03 18:41:47,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:47,179 INFO L470 AbstractCegarLoop]: Abstraction has 1338 states and 5245 transitions. [2022-03-03 18:41:47,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:47,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 5245 transitions. [2022-03-03 18:41:47,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:47,181 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:47,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:47,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2022-03-03 18:41:47,181 INFO L402 AbstractCegarLoop]: === Iteration 418 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:47,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:47,181 INFO L85 PathProgramCache]: Analyzing trace with hash -2145662441, now seen corresponding path program 413 times [2022-03-03 18:41:47,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:47,181 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286899789] [2022-03-03 18:41:47,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:47,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:47,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:47,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:47,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286899789] [2022-03-03 18:41:47,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286899789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:47,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:47,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:47,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921151486] [2022-03-03 18:41:47,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:47,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:47,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:47,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:47,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:47,307 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) [2022-03-03 18:41:47,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:47,435 INFO L93 Difference]: Finished difference Result 2870 states and 10514 transitions. [2022-03-03 18:41:47,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:47,435 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 [2022-03-03 18:41:47,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:47,441 INFO L225 Difference]: With dead ends: 2870 [2022-03-03 18:41:47,441 INFO L226 Difference]: Without dead ends: 2687 [2022-03-03 18:41:47,441 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 [2022-03-03 18:41:47,441 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 [2022-03-03 18:41:47,441 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] [2022-03-03 18:41:47,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2022-03-03 18:41:47,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 1382. [2022-03-03 18:41:47,464 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) [2022-03-03 18:41:47,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 5397 transitions. [2022-03-03 18:41:47,467 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 5397 transitions. Word has length 25 [2022-03-03 18:41:47,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:47,467 INFO L470 AbstractCegarLoop]: Abstraction has 1382 states and 5397 transitions. [2022-03-03 18:41:47,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:47,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 5397 transitions. [2022-03-03 18:41:47,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:47,469 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:47,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:47,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417 [2022-03-03 18:41:47,469 INFO L402 AbstractCegarLoop]: === Iteration 419 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:47,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:47,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1144972917, now seen corresponding path program 414 times [2022-03-03 18:41:47,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:47,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953792604] [2022-03-03 18:41:47,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:47,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:47,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:47,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:47,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953792604] [2022-03-03 18:41:47,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953792604] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:47,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:47,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:47,589 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449448753] [2022-03-03 18:41:47,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:47,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:47,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:47,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:47,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:47,589 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) [2022-03-03 18:41:47,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:47,695 INFO L93 Difference]: Finished difference Result 2909 states and 10617 transitions. [2022-03-03 18:41:47,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:47,695 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:47,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:47,700 INFO L225 Difference]: With dead ends: 2909 [2022-03-03 18:41:47,700 INFO L226 Difference]: Without dead ends: 2627 [2022-03-03 18:41:47,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:47,701 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 [2022-03-03 18:41:47,701 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] [2022-03-03 18:41:47,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2022-03-03 18:41:47,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 1322. [2022-03-03 18:41:47,722 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) [2022-03-03 18:41:47,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 5189 transitions. [2022-03-03 18:41:47,724 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 5189 transitions. Word has length 25 [2022-03-03 18:41:47,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:47,725 INFO L470 AbstractCegarLoop]: Abstraction has 1322 states and 5189 transitions. [2022-03-03 18:41:47,725 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) [2022-03-03 18:41:47,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 5189 transitions. [2022-03-03 18:41:47,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:47,727 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:47,727 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] [2022-03-03 18:41:47,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable418 [2022-03-03 18:41:47,727 INFO L402 AbstractCegarLoop]: === Iteration 420 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:47,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:47,727 INFO L85 PathProgramCache]: Analyzing trace with hash 232856245, now seen corresponding path program 415 times [2022-03-03 18:41:47,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:47,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036026008] [2022-03-03 18:41:47,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:47,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:47,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:47,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:47,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036026008] [2022-03-03 18:41:47,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036026008] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:47,845 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:47,845 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:47,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116395437] [2022-03-03 18:41:47,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:47,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:47,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:47,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:47,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:47,845 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) [2022-03-03 18:41:47,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:47,938 INFO L93 Difference]: Finished difference Result 2750 states and 10050 transitions. [2022-03-03 18:41:47,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:47,939 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:47,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:47,944 INFO L225 Difference]: With dead ends: 2750 [2022-03-03 18:41:47,944 INFO L226 Difference]: Without dead ends: 2591 [2022-03-03 18:41:47,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:47,945 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 138 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:47,945 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] [2022-03-03 18:41:47,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2022-03-03 18:41:47,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 1322. [2022-03-03 18:41:47,966 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) [2022-03-03 18:41:47,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 5173 transitions. [2022-03-03 18:41:47,969 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 5173 transitions. Word has length 25 [2022-03-03 18:41:47,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:47,969 INFO L470 AbstractCegarLoop]: Abstraction has 1322 states and 5173 transitions. [2022-03-03 18:41:47,969 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) [2022-03-03 18:41:47,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 5173 transitions. [2022-03-03 18:41:47,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:47,971 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:47,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:47,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable419 [2022-03-03 18:41:47,971 INFO L402 AbstractCegarLoop]: === Iteration 421 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:47,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:47,971 INFO L85 PathProgramCache]: Analyzing trace with hash -775441739, now seen corresponding path program 416 times [2022-03-03 18:41:47,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:47,971 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252273213] [2022-03-03 18:41:47,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:47,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:48,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:48,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:48,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252273213] [2022-03-03 18:41:48,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252273213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:48,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:48,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:48,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641879099] [2022-03-03 18:41:48,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:48,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:48,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:48,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:48,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:48,091 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) [2022-03-03 18:41:48,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:48,192 INFO L93 Difference]: Finished difference Result 2813 states and 10257 transitions. [2022-03-03 18:41:48,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:48,193 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:48,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:48,198 INFO L225 Difference]: With dead ends: 2813 [2022-03-03 18:41:48,198 INFO L226 Difference]: Without dead ends: 2559 [2022-03-03 18:41:48,198 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 [2022-03-03 18:41:48,198 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 [2022-03-03 18:41:48,199 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] [2022-03-03 18:41:48,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2022-03-03 18:41:48,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 1290. [2022-03-03 18:41:48,220 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) [2022-03-03 18:41:48,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 5045 transitions. [2022-03-03 18:41:48,223 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 5045 transitions. Word has length 25 [2022-03-03 18:41:48,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:48,223 INFO L470 AbstractCegarLoop]: Abstraction has 1290 states and 5045 transitions. [2022-03-03 18:41:48,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:48,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 5045 transitions. [2022-03-03 18:41:48,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:48,225 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:48,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:48,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable420 [2022-03-03 18:41:48,225 INFO L402 AbstractCegarLoop]: === Iteration 422 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:48,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:48,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1466193385, now seen corresponding path program 417 times [2022-03-03 18:41:48,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:48,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583715167] [2022-03-03 18:41:48,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:48,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:48,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:48,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:48,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583715167] [2022-03-03 18:41:48,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583715167] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:48,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:48,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:48,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982258854] [2022-03-03 18:41:48,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:48,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:48,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:48,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:48,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:48,347 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) [2022-03-03 18:41:48,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:48,450 INFO L93 Difference]: Finished difference Result 2655 states and 9699 transitions. [2022-03-03 18:41:48,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:48,450 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 [2022-03-03 18:41:48,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:48,455 INFO L225 Difference]: With dead ends: 2655 [2022-03-03 18:41:48,455 INFO L226 Difference]: Without dead ends: 2496 [2022-03-03 18:41:48,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:48,455 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 [2022-03-03 18:41:48,456 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] [2022-03-03 18:41:48,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2022-03-03 18:41:48,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 1306. [2022-03-03 18:41:48,477 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) [2022-03-03 18:41:48,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5093 transitions. [2022-03-03 18:41:48,479 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5093 transitions. Word has length 25 [2022-03-03 18:41:48,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:48,479 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5093 transitions. [2022-03-03 18:41:48,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:48,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5093 transitions. [2022-03-03 18:41:48,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:48,481 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:48,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:48,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable421 [2022-03-03 18:41:48,482 INFO L402 AbstractCegarLoop]: === Iteration 423 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:48,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:48,482 INFO L85 PathProgramCache]: Analyzing trace with hash 886501911, now seen corresponding path program 418 times [2022-03-03 18:41:48,482 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:48,482 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671929869] [2022-03-03 18:41:48,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:48,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:48,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:48,603 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:48,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671929869] [2022-03-03 18:41:48,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671929869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:48,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:48,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:48,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205802608] [2022-03-03 18:41:48,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:48,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:48,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:48,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:48,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:48,603 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) [2022-03-03 18:41:48,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:48,720 INFO L93 Difference]: Finished difference Result 2543 states and 9362 transitions. [2022-03-03 18:41:48,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:48,720 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 [2022-03-03 18:41:48,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:48,725 INFO L225 Difference]: With dead ends: 2543 [2022-03-03 18:41:48,725 INFO L226 Difference]: Without dead ends: 2352 [2022-03-03 18:41:48,725 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 [2022-03-03 18:41:48,725 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 [2022-03-03 18:41:48,725 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] [2022-03-03 18:41:48,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2022-03-03 18:41:48,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 1290. [2022-03-03 18:41:48,744 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) [2022-03-03 18:41:48,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 5037 transitions. [2022-03-03 18:41:48,747 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 5037 transitions. Word has length 25 [2022-03-03 18:41:48,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:48,747 INFO L470 AbstractCegarLoop]: Abstraction has 1290 states and 5037 transitions. [2022-03-03 18:41:48,747 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) [2022-03-03 18:41:48,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 5037 transitions. [2022-03-03 18:41:48,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:48,749 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:48,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:48,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable422 [2022-03-03 18:41:48,749 INFO L402 AbstractCegarLoop]: === Iteration 424 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:48,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:48,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1720219113, now seen corresponding path program 419 times [2022-03-03 18:41:48,749 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:48,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583426374] [2022-03-03 18:41:48,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:48,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:48,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:48,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:48,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583426374] [2022-03-03 18:41:48,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583426374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:48,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:48,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:48,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954809512] [2022-03-03 18:41:48,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:48,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:48,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:48,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:48,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:48,882 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) [2022-03-03 18:41:48,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:48,990 INFO L93 Difference]: Finished difference Result 2790 states and 10190 transitions. [2022-03-03 18:41:48,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:48,990 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 [2022-03-03 18:41:48,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:48,995 INFO L225 Difference]: With dead ends: 2790 [2022-03-03 18:41:48,995 INFO L226 Difference]: Without dead ends: 2615 [2022-03-03 18:41:48,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:48,995 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 [2022-03-03 18:41:48,995 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] [2022-03-03 18:41:48,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states. [2022-03-03 18:41:49,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 1330. [2022-03-03 18:41:49,017 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) [2022-03-03 18:41:49,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 5177 transitions. [2022-03-03 18:41:49,021 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 5177 transitions. Word has length 25 [2022-03-03 18:41:49,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:49,021 INFO L470 AbstractCegarLoop]: Abstraction has 1330 states and 5177 transitions. [2022-03-03 18:41:49,021 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) [2022-03-03 18:41:49,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 5177 transitions. [2022-03-03 18:41:49,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:49,023 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:49,023 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] [2022-03-03 18:41:49,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable423 [2022-03-03 18:41:49,023 INFO L402 AbstractCegarLoop]: === Iteration 425 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:49,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:49,024 INFO L85 PathProgramCache]: Analyzing trace with hash 919223797, now seen corresponding path program 420 times [2022-03-03 18:41:49,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:49,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390377580] [2022-03-03 18:41:49,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:49,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:49,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:49,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:49,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390377580] [2022-03-03 18:41:49,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390377580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:49,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:49,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:49,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707312005] [2022-03-03 18:41:49,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:49,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:49,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:49,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:49,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:49,150 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) [2022-03-03 18:41:49,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:49,273 INFO L93 Difference]: Finished difference Result 2742 states and 9990 transitions. [2022-03-03 18:41:49,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:49,273 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 [2022-03-03 18:41:49,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:49,279 INFO L225 Difference]: With dead ends: 2742 [2022-03-03 18:41:49,279 INFO L226 Difference]: Without dead ends: 2464 [2022-03-03 18:41:49,279 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 [2022-03-03 18:41:49,279 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 [2022-03-03 18:41:49,279 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] [2022-03-03 18:41:49,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2022-03-03 18:41:49,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 1274. [2022-03-03 18:41:49,299 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) [2022-03-03 18:41:49,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4981 transitions. [2022-03-03 18:41:49,301 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4981 transitions. Word has length 25 [2022-03-03 18:41:49,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:49,302 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4981 transitions. [2022-03-03 18:41:49,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:49,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4981 transitions. [2022-03-03 18:41:49,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:49,303 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:49,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:49,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable424 [2022-03-03 18:41:49,304 INFO L402 AbstractCegarLoop]: === Iteration 426 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:49,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:49,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1970564649, now seen corresponding path program 421 times [2022-03-03 18:41:49,304 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:49,304 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856338175] [2022-03-03 18:41:49,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:49,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:49,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:49,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:49,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856338175] [2022-03-03 18:41:49,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856338175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:49,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:49,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:49,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855879069] [2022-03-03 18:41:49,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:49,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:49,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:49,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:49,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:49,423 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) [2022-03-03 18:41:49,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:49,537 INFO L93 Difference]: Finished difference Result 2600 states and 9504 transitions. [2022-03-03 18:41:49,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:49,537 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:49,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:49,542 INFO L225 Difference]: With dead ends: 2600 [2022-03-03 18:41:49,543 INFO L226 Difference]: Without dead ends: 2441 [2022-03-03 18:41:49,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:49,543 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 [2022-03-03 18:41:49,543 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] [2022-03-03 18:41:49,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2022-03-03 18:41:49,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 1298. [2022-03-03 18:41:49,562 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) [2022-03-03 18:41:49,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5065 transitions. [2022-03-03 18:41:49,565 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5065 transitions. Word has length 25 [2022-03-03 18:41:49,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:49,565 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5065 transitions. [2022-03-03 18:41:49,565 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) [2022-03-03 18:41:49,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5065 transitions. [2022-03-03 18:41:49,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:49,567 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:49,567 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] [2022-03-03 18:41:49,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable425 [2022-03-03 18:41:49,567 INFO L402 AbstractCegarLoop]: === Iteration 427 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:49,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:49,567 INFO L85 PathProgramCache]: Analyzing trace with hash -290068009, now seen corresponding path program 422 times [2022-03-03 18:41:49,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:49,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271001670] [2022-03-03 18:41:49,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:49,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:49,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:49,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:49,684 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:49,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271001670] [2022-03-03 18:41:49,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271001670] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:49,685 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:49,685 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:49,685 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413945454] [2022-03-03 18:41:49,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:49,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:49,685 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:49,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:49,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:49,685 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) [2022-03-03 18:41:49,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:49,791 INFO L93 Difference]: Finished difference Result 2624 states and 9580 transitions. [2022-03-03 18:41:49,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:49,791 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 [2022-03-03 18:41:49,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:49,797 INFO L225 Difference]: With dead ends: 2624 [2022-03-03 18:41:49,797 INFO L226 Difference]: Without dead ends: 2425 [2022-03-03 18:41:49,797 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 [2022-03-03 18:41:49,797 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 [2022-03-03 18:41:49,797 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] [2022-03-03 18:41:49,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2022-03-03 18:41:49,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 1282. [2022-03-03 18:41:49,817 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) [2022-03-03 18:41:49,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 5009 transitions. [2022-03-03 18:41:49,820 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 5009 transitions. Word has length 25 [2022-03-03 18:41:49,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:49,820 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 5009 transitions. [2022-03-03 18:41:49,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:49,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 5009 transitions. [2022-03-03 18:41:49,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:49,822 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:49,822 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] [2022-03-03 18:41:49,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable426 [2022-03-03 18:41:49,822 INFO L402 AbstractCegarLoop]: === Iteration 428 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:49,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:49,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1477605685, now seen corresponding path program 423 times [2022-03-03 18:41:49,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:49,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707724787] [2022-03-03 18:41:49,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:49,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:49,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:49,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:49,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707724787] [2022-03-03 18:41:49,943 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707724787] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:49,943 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:49,943 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:49,943 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860831012] [2022-03-03 18:41:49,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:49,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:49,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:49,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:49,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:49,943 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) [2022-03-03 18:41:50,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:50,051 INFO L93 Difference]: Finished difference Result 2544 states and 9292 transitions. [2022-03-03 18:41:50,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:50,052 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:50,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:50,057 INFO L225 Difference]: With dead ends: 2544 [2022-03-03 18:41:50,057 INFO L226 Difference]: Without dead ends: 2385 [2022-03-03 18:41:50,057 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 [2022-03-03 18:41:50,057 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 [2022-03-03 18:41:50,057 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] [2022-03-03 18:41:50,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2022-03-03 18:41:50,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 1298. [2022-03-03 18:41:50,078 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) [2022-03-03 18:41:50,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5057 transitions. [2022-03-03 18:41:50,081 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5057 transitions. Word has length 25 [2022-03-03 18:41:50,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:50,081 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5057 transitions. [2022-03-03 18:41:50,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:50,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5057 transitions. [2022-03-03 18:41:50,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:50,083 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:50,083 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] [2022-03-03 18:41:50,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable427 [2022-03-03 18:41:50,083 INFO L402 AbstractCegarLoop]: === Iteration 429 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:50,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:50,084 INFO L85 PathProgramCache]: Analyzing trace with hash 2119944663, now seen corresponding path program 424 times [2022-03-03 18:41:50,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:50,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320875004] [2022-03-03 18:41:50,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:50,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:50,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:50,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:50,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320875004] [2022-03-03 18:41:50,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320875004] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:50,204 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:50,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:50,204 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268799669] [2022-03-03 18:41:50,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:50,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:50,204 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:50,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:50,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:50,205 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) [2022-03-03 18:41:50,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:50,317 INFO L93 Difference]: Finished difference Result 2432 states and 8955 transitions. [2022-03-03 18:41:50,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:50,317 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 [2022-03-03 18:41:50,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:50,322 INFO L225 Difference]: With dead ends: 2432 [2022-03-03 18:41:50,323 INFO L226 Difference]: Without dead ends: 2241 [2022-03-03 18:41:50,323 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 [2022-03-03 18:41:50,323 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 [2022-03-03 18:41:50,323 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] [2022-03-03 18:41:50,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2022-03-03 18:41:50,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 1282. [2022-03-03 18:41:50,342 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) [2022-03-03 18:41:50,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 5001 transitions. [2022-03-03 18:41:50,345 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 5001 transitions. Word has length 25 [2022-03-03 18:41:50,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:50,345 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 5001 transitions. [2022-03-03 18:41:50,345 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) [2022-03-03 18:41:50,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 5001 transitions. [2022-03-03 18:41:50,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:50,346 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:50,347 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] [2022-03-03 18:41:50,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable428 [2022-03-03 18:41:50,347 INFO L402 AbstractCegarLoop]: === Iteration 430 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:50,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:50,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1497313751, now seen corresponding path program 425 times [2022-03-03 18:41:50,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:50,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257193972] [2022-03-03 18:41:50,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:50,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:50,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:50,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:50,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257193972] [2022-03-03 18:41:50,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257193972] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:50,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:50,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:50,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085895590] [2022-03-03 18:41:50,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:50,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:50,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:50,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:50,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:50,468 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) [2022-03-03 18:41:50,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:50,586 INFO L93 Difference]: Finished difference Result 2448 states and 9027 transitions. [2022-03-03 18:41:50,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:50,586 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:50,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:50,591 INFO L225 Difference]: With dead ends: 2448 [2022-03-03 18:41:50,591 INFO L226 Difference]: Without dead ends: 2265 [2022-03-03 18:41:50,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:50,592 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 [2022-03-03 18:41:50,592 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] [2022-03-03 18:41:50,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2022-03-03 18:41:50,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 1306. [2022-03-03 18:41:50,611 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) [2022-03-03 18:41:50,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5077 transitions. [2022-03-03 18:41:50,614 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5077 transitions. Word has length 25 [2022-03-03 18:41:50,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:50,614 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5077 transitions. [2022-03-03 18:41:50,614 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) [2022-03-03 18:41:50,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5077 transitions. [2022-03-03 18:41:50,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:50,616 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:50,616 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] [2022-03-03 18:41:50,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable429 [2022-03-03 18:41:50,616 INFO L402 AbstractCegarLoop]: === Iteration 431 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:50,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:50,616 INFO L85 PathProgramCache]: Analyzing trace with hash -546023243, now seen corresponding path program 426 times [2022-03-03 18:41:50,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:50,616 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681879423] [2022-03-03 18:41:50,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:50,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:50,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:50,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:50,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681879423] [2022-03-03 18:41:50,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681879423] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:50,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:50,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:50,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866904671] [2022-03-03 18:41:50,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:50,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:50,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:50,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:50,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:50,738 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) [2022-03-03 18:41:50,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:50,846 INFO L93 Difference]: Finished difference Result 2264 states and 8414 transitions. [2022-03-03 18:41:50,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:50,846 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 [2022-03-03 18:41:50,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:50,850 INFO L225 Difference]: With dead ends: 2264 [2022-03-03 18:41:50,850 INFO L226 Difference]: Without dead ends: 2057 [2022-03-03 18:41:50,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:50,851 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 [2022-03-03 18:41:50,851 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] [2022-03-03 18:41:50,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2057 states. [2022-03-03 18:41:50,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2057 to 1274. [2022-03-03 18:41:50,868 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) [2022-03-03 18:41:50,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4977 transitions. [2022-03-03 18:41:50,871 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4977 transitions. Word has length 25 [2022-03-03 18:41:50,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:50,871 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4977 transitions. [2022-03-03 18:41:50,871 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) [2022-03-03 18:41:50,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4977 transitions. [2022-03-03 18:41:50,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:50,873 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:50,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:50,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable430 [2022-03-03 18:41:50,873 INFO L402 AbstractCegarLoop]: === Iteration 432 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:50,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:50,873 INFO L85 PathProgramCache]: Analyzing trace with hash 404343255, now seen corresponding path program 427 times [2022-03-03 18:41:50,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:50,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643362858] [2022-03-03 18:41:50,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:50,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:50,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:50,997 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:50,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643362858] [2022-03-03 18:41:50,997 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643362858] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:50,997 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:50,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:50,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90785465] [2022-03-03 18:41:50,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:50,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:50,997 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:50,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:50,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:50,997 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) [2022-03-03 18:41:51,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:51,106 INFO L93 Difference]: Finished difference Result 2823 states and 10363 transitions. [2022-03-03 18:41:51,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:51,107 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:51,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:51,125 INFO L225 Difference]: With dead ends: 2823 [2022-03-03 18:41:51,126 INFO L226 Difference]: Without dead ends: 2640 [2022-03-03 18:41:51,126 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 [2022-03-03 18:41:51,126 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 [2022-03-03 18:41:51,126 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] [2022-03-03 18:41:51,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2640 states. [2022-03-03 18:41:51,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2640 to 1318. [2022-03-03 18:41:51,148 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) [2022-03-03 18:41:51,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 5145 transitions. [2022-03-03 18:41:51,151 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 5145 transitions. Word has length 25 [2022-03-03 18:41:51,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:51,151 INFO L470 AbstractCegarLoop]: Abstraction has 1318 states and 5145 transitions. [2022-03-03 18:41:51,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:51,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 5145 transitions. [2022-03-03 18:41:51,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:51,153 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:51,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:51,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable431 [2022-03-03 18:41:51,153 INFO L402 AbstractCegarLoop]: === Iteration 433 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:51,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:51,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1638993739, now seen corresponding path program 428 times [2022-03-03 18:41:51,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:51,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105198115] [2022-03-03 18:41:51,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:51,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:51,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:51,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:51,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105198115] [2022-03-03 18:41:51,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105198115] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:51,271 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:51,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:51,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880527396] [2022-03-03 18:41:51,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:51,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:51,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:51,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:51,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:51,272 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) [2022-03-03 18:41:51,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:51,382 INFO L93 Difference]: Finished difference Result 2815 states and 10311 transitions. [2022-03-03 18:41:51,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:51,382 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 [2022-03-03 18:41:51,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:51,388 INFO L225 Difference]: With dead ends: 2815 [2022-03-03 18:41:51,388 INFO L226 Difference]: Without dead ends: 2616 [2022-03-03 18:41:51,388 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 [2022-03-03 18:41:51,388 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 [2022-03-03 18:41:51,389 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] [2022-03-03 18:41:51,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2022-03-03 18:41:51,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 1294. [2022-03-03 18:41:51,409 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) [2022-03-03 18:41:51,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5057 transitions. [2022-03-03 18:41:51,412 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5057 transitions. Word has length 25 [2022-03-03 18:41:51,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:51,412 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5057 transitions. [2022-03-03 18:41:51,412 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) [2022-03-03 18:41:51,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5057 transitions. [2022-03-03 18:41:51,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:51,414 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:51,414 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] [2022-03-03 18:41:51,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable432 [2022-03-03 18:41:51,414 INFO L402 AbstractCegarLoop]: === Iteration 434 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:51,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:51,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1416692171, now seen corresponding path program 429 times [2022-03-03 18:41:51,414 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:51,414 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821828911] [2022-03-03 18:41:51,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:51,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:51,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:51,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:51,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821828911] [2022-03-03 18:41:51,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821828911] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:51,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:51,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:51,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124391482] [2022-03-03 18:41:51,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:51,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:51,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:51,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:51,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:51,537 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) [2022-03-03 18:41:51,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:51,647 INFO L93 Difference]: Finished difference Result 2751 states and 10075 transitions. [2022-03-03 18:41:51,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:51,647 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:51,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:51,653 INFO L225 Difference]: With dead ends: 2751 [2022-03-03 18:41:51,653 INFO L226 Difference]: Without dead ends: 2568 [2022-03-03 18:41:51,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:51,654 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 105 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:51,654 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] [2022-03-03 18:41:51,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2568 states. [2022-03-03 18:41:51,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2568 to 1338. [2022-03-03 18:41:51,677 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) [2022-03-03 18:41:51,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 5209 transitions. [2022-03-03 18:41:51,679 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 5209 transitions. Word has length 25 [2022-03-03 18:41:51,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:51,680 INFO L470 AbstractCegarLoop]: Abstraction has 1338 states and 5209 transitions. [2022-03-03 18:41:51,680 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) [2022-03-03 18:41:51,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 5209 transitions. [2022-03-03 18:41:51,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:51,682 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:51,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:51,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable433 [2022-03-03 18:41:51,682 INFO L402 AbstractCegarLoop]: === Iteration 435 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:51,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:51,682 INFO L85 PathProgramCache]: Analyzing trace with hash -699124171, now seen corresponding path program 430 times [2022-03-03 18:41:51,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:51,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991361219] [2022-03-03 18:41:51,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:51,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:51,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:51,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:51,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991361219] [2022-03-03 18:41:51,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991361219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:51,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:51,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:51,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520528828] [2022-03-03 18:41:51,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:51,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:51,803 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:51,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:51,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:51,804 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) [2022-03-03 18:41:51,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:51,904 INFO L93 Difference]: Finished difference Result 2790 states and 10178 transitions. [2022-03-03 18:41:51,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:51,904 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:51,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:51,910 INFO L225 Difference]: With dead ends: 2790 [2022-03-03 18:41:51,910 INFO L226 Difference]: Without dead ends: 2524 [2022-03-03 18:41:51,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:51,910 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 102 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:51,910 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] [2022-03-03 18:41:51,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2022-03-03 18:41:51,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 1294. [2022-03-03 18:41:51,931 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) [2022-03-03 18:41:51,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5037 transitions. [2022-03-03 18:41:51,933 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5037 transitions. Word has length 25 [2022-03-03 18:41:51,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:51,934 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5037 transitions. [2022-03-03 18:41:51,934 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) [2022-03-03 18:41:51,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5037 transitions. [2022-03-03 18:41:51,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:51,936 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:51,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:51,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable434 [2022-03-03 18:41:51,936 INFO L402 AbstractCegarLoop]: === Iteration 436 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:51,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:51,936 INFO L85 PathProgramCache]: Analyzing trace with hash -434344557, now seen corresponding path program 431 times [2022-03-03 18:41:51,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:51,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702694151] [2022-03-03 18:41:51,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:51,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:52,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:52,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:52,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702694151] [2022-03-03 18:41:52,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702694151] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:52,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:52,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:52,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017617294] [2022-03-03 18:41:52,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:52,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:52,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:52,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:52,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:52,057 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) [2022-03-03 18:41:52,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:52,170 INFO L93 Difference]: Finished difference Result 2691 states and 9819 transitions. [2022-03-03 18:41:52,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:52,170 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 [2022-03-03 18:41:52,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:52,176 INFO L225 Difference]: With dead ends: 2691 [2022-03-03 18:41:52,176 INFO L226 Difference]: Without dead ends: 2516 [2022-03-03 18:41:52,176 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 [2022-03-03 18:41:52,176 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 102 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:52,176 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] [2022-03-03 18:41:52,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2516 states. [2022-03-03 18:41:52,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2516 to 1334. [2022-03-03 18:41:52,197 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) [2022-03-03 18:41:52,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 5177 transitions. [2022-03-03 18:41:52,200 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 5177 transitions. Word has length 25 [2022-03-03 18:41:52,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:52,200 INFO L470 AbstractCegarLoop]: Abstraction has 1334 states and 5177 transitions. [2022-03-03 18:41:52,200 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) [2022-03-03 18:41:52,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 5177 transitions. [2022-03-03 18:41:52,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:52,202 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:52,202 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] [2022-03-03 18:41:52,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable435 [2022-03-03 18:41:52,202 INFO L402 AbstractCegarLoop]: === Iteration 437 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:52,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:52,203 INFO L85 PathProgramCache]: Analyzing trace with hash -215992971, now seen corresponding path program 432 times [2022-03-03 18:41:52,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:52,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982559190] [2022-03-03 18:41:52,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:52,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:52,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:52,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:52,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982559190] [2022-03-03 18:41:52,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982559190] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:52,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:52,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:52,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816685271] [2022-03-03 18:41:52,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:52,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:52,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:52,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:52,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:52,323 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) [2022-03-03 18:41:52,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:52,416 INFO L93 Difference]: Finished difference Result 2643 states and 9619 transitions. [2022-03-03 18:41:52,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:52,417 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:52,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:52,422 INFO L225 Difference]: With dead ends: 2643 [2022-03-03 18:41:52,422 INFO L226 Difference]: Without dead ends: 2353 [2022-03-03 18:41:52,422 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 [2022-03-03 18:41:52,422 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 110 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:52,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 130 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:52,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2022-03-03 18:41:52,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 1266. [2022-03-03 18:41:52,443 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) [2022-03-03 18:41:52,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 4953 transitions. [2022-03-03 18:41:52,446 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 4953 transitions. Word has length 25 [2022-03-03 18:41:52,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:52,446 INFO L470 AbstractCegarLoop]: Abstraction has 1266 states and 4953 transitions. [2022-03-03 18:41:52,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:52,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 4953 transitions. [2022-03-03 18:41:52,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:52,448 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:52,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:52,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable436 [2022-03-03 18:41:52,448 INFO L402 AbstractCegarLoop]: === Iteration 438 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:52,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:52,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1690129657, now seen corresponding path program 433 times [2022-03-03 18:41:52,448 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:52,448 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414988920] [2022-03-03 18:41:52,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:52,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:52,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:52,568 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:52,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414988920] [2022-03-03 18:41:52,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414988920] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:52,568 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:52,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:52,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137942213] [2022-03-03 18:41:52,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:52,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:52,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:52,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:52,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:52,568 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) [2022-03-03 18:41:52,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:52,665 INFO L93 Difference]: Finished difference Result 2549 states and 9317 transitions. [2022-03-03 18:41:52,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:52,666 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 [2022-03-03 18:41:52,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:52,671 INFO L225 Difference]: With dead ends: 2549 [2022-03-03 18:41:52,671 INFO L226 Difference]: Without dead ends: 2390 [2022-03-03 18:41:52,671 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 [2022-03-03 18:41:52,671 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 109 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:52,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 160 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:52,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2022-03-03 18:41:52,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 1294. [2022-03-03 18:41:52,692 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) [2022-03-03 18:41:52,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5057 transitions. [2022-03-03 18:41:52,695 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5057 transitions. Word has length 25 [2022-03-03 18:41:52,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:52,695 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5057 transitions. [2022-03-03 18:41:52,695 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) [2022-03-03 18:41:52,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5057 transitions. [2022-03-03 18:41:52,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:52,697 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:52,697 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] [2022-03-03 18:41:52,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable437 [2022-03-03 18:41:52,697 INFO L402 AbstractCegarLoop]: === Iteration 439 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:52,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:52,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1596539655, now seen corresponding path program 434 times [2022-03-03 18:41:52,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:52,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700279270] [2022-03-03 18:41:52,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:52,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:52,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:52,817 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:52,817 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700279270] [2022-03-03 18:41:52,817 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700279270] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:52,818 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:52,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:52,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408962209] [2022-03-03 18:41:52,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:52,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:52,818 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:52,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:52,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:52,818 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) [2022-03-03 18:41:52,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:52,930 INFO L93 Difference]: Finished difference Result 2577 states and 9405 transitions. [2022-03-03 18:41:52,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:52,930 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:52,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:52,935 INFO L225 Difference]: With dead ends: 2577 [2022-03-03 18:41:52,936 INFO L226 Difference]: Without dead ends: 2374 [2022-03-03 18:41:52,936 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 [2022-03-03 18:41:52,936 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 109 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:52,936 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] [2022-03-03 18:41:52,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2022-03-03 18:41:52,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 1278. [2022-03-03 18:41:52,967 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) [2022-03-03 18:41:52,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 5001 transitions. [2022-03-03 18:41:52,970 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 5001 transitions. Word has length 25 [2022-03-03 18:41:52,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:52,970 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 5001 transitions. [2022-03-03 18:41:52,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:52,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 5001 transitions. [2022-03-03 18:41:52,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:52,972 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:52,972 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:52,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable438 [2022-03-03 18:41:52,972 INFO L402 AbstractCegarLoop]: === Iteration 440 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:52,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:52,972 INFO L85 PathProgramCache]: Analyzing trace with hash 843332695, now seen corresponding path program 435 times [2022-03-03 18:41:52,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:52,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314156792] [2022-03-03 18:41:52,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:52,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:53,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:53,088 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:53,088 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314156792] [2022-03-03 18:41:53,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314156792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:53,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:53,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:53,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510647119] [2022-03-03 18:41:53,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:53,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:53,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:53,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:53,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:53,089 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) [2022-03-03 18:41:53,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:53,191 INFO L93 Difference]: Finished difference Result 2545 states and 9297 transitions. [2022-03-03 18:41:53,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:53,191 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:53,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:53,197 INFO L225 Difference]: With dead ends: 2545 [2022-03-03 18:41:53,197 INFO L226 Difference]: Without dead ends: 2386 [2022-03-03 18:41:53,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:53,197 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 105 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:53,197 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] [2022-03-03 18:41:53,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states. [2022-03-03 18:41:53,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 1294. [2022-03-03 18:41:53,216 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) [2022-03-03 18:41:53,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5049 transitions. [2022-03-03 18:41:53,219 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5049 transitions. Word has length 25 [2022-03-03 18:41:53,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:53,219 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5049 transitions. [2022-03-03 18:41:53,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:53,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5049 transitions. [2022-03-03 18:41:53,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:53,221 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:53,221 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:53,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable439 [2022-03-03 18:41:53,221 INFO L402 AbstractCegarLoop]: === Iteration 441 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:53,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:53,221 INFO L85 PathProgramCache]: Analyzing trace with hash 813473017, now seen corresponding path program 436 times [2022-03-03 18:41:53,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:53,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711211626] [2022-03-03 18:41:53,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:53,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:53,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:53,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:53,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711211626] [2022-03-03 18:41:53,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711211626] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:53,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:53,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:53,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152674642] [2022-03-03 18:41:53,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:53,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:53,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:53,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:53,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:53,337 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) [2022-03-03 18:41:53,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:53,448 INFO L93 Difference]: Finished difference Result 2569 states and 9373 transitions. [2022-03-03 18:41:53,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:53,449 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 [2022-03-03 18:41:53,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:53,453 INFO L225 Difference]: With dead ends: 2569 [2022-03-03 18:41:53,454 INFO L226 Difference]: Without dead ends: 2370 [2022-03-03 18:41:53,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:53,454 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 103 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:53,454 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] [2022-03-03 18:41:53,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states. [2022-03-03 18:41:53,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 1278. [2022-03-03 18:41:53,473 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) [2022-03-03 18:41:53,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 4993 transitions. [2022-03-03 18:41:53,476 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 4993 transitions. Word has length 25 [2022-03-03 18:41:53,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:53,476 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 4993 transitions. [2022-03-03 18:41:53,476 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) [2022-03-03 18:41:53,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 4993 transitions. [2022-03-03 18:41:53,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:53,478 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:53,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:53,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable440 [2022-03-03 18:41:53,478 INFO L402 AbstractCegarLoop]: === Iteration 442 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:53,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:53,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1546971911, now seen corresponding path program 437 times [2022-03-03 18:41:53,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:53,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855181269] [2022-03-03 18:41:53,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:53,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:53,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:53,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:53,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855181269] [2022-03-03 18:41:53,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855181269] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:53,595 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:53,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:53,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244322830] [2022-03-03 18:41:53,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:53,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:53,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:53,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:53,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:53,595 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) [2022-03-03 18:41:53,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:53,700 INFO L93 Difference]: Finished difference Result 2613 states and 9549 transitions. [2022-03-03 18:41:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:53,700 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:53,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:53,705 INFO L225 Difference]: With dead ends: 2613 [2022-03-03 18:41:53,706 INFO L226 Difference]: Without dead ends: 2426 [2022-03-03 18:41:53,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:53,706 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 110 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:53,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 144 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:53,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2022-03-03 18:41:53,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 1306. [2022-03-03 18:41:53,725 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) [2022-03-03 18:41:53,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5081 transitions. [2022-03-03 18:41:53,728 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5081 transitions. Word has length 25 [2022-03-03 18:41:53,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:53,728 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5081 transitions. [2022-03-03 18:41:53,728 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) [2022-03-03 18:41:53,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5081 transitions. [2022-03-03 18:41:53,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:53,730 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:53,730 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] [2022-03-03 18:41:53,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable441 [2022-03-03 18:41:53,730 INFO L402 AbstractCegarLoop]: === Iteration 443 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:53,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:53,730 INFO L85 PathProgramCache]: Analyzing trace with hash 704658391, now seen corresponding path program 438 times [2022-03-03 18:41:53,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:53,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201342853] [2022-03-03 18:41:53,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:53,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:53,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:53,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:53,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201342853] [2022-03-03 18:41:53,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201342853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:53,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:53,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:53,848 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436843630] [2022-03-03 18:41:53,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:53,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:53,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:53,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:53,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:53,848 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) [2022-03-03 18:41:53,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:53,956 INFO L93 Difference]: Finished difference Result 2609 states and 9509 transitions. [2022-03-03 18:41:53,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:53,957 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:53,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:53,961 INFO L225 Difference]: With dead ends: 2609 [2022-03-03 18:41:53,961 INFO L226 Difference]: Without dead ends: 2390 [2022-03-03 18:41:53,961 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 [2022-03-03 18:41:53,962 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:53,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 158 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:53,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2022-03-03 18:41:53,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 1270. [2022-03-03 18:41:53,980 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) [2022-03-03 18:41:53,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4969 transitions. [2022-03-03 18:41:53,982 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4969 transitions. Word has length 25 [2022-03-03 18:41:53,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:53,982 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4969 transitions. [2022-03-03 18:41:53,983 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) [2022-03-03 18:41:53,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4969 transitions. [2022-03-03 18:41:53,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:53,984 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:53,984 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] [2022-03-03 18:41:53,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable442 [2022-03-03 18:41:53,985 INFO L402 AbstractCegarLoop]: === Iteration 444 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:53,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:53,985 INFO L85 PathProgramCache]: Analyzing trace with hash -332931881, now seen corresponding path program 439 times [2022-03-03 18:41:53,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:53,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772963769] [2022-03-03 18:41:53,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:53,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:54,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:54,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:54,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772963769] [2022-03-03 18:41:54,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772963769] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:54,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:54,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:54,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593015263] [2022-03-03 18:41:54,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:54,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:54,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:54,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:54,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:54,105 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) [2022-03-03 18:41:54,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:54,198 INFO L93 Difference]: Finished difference Result 2513 states and 9169 transitions. [2022-03-03 18:41:54,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:54,198 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:54,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:54,202 INFO L225 Difference]: With dead ends: 2513 [2022-03-03 18:41:54,202 INFO L226 Difference]: Without dead ends: 2354 [2022-03-03 18:41:54,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:54,203 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 130 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:54,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 138 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:54,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2022-03-03 18:41:54,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 1294. [2022-03-03 18:41:54,221 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) [2022-03-03 18:41:54,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5053 transitions. [2022-03-03 18:41:54,224 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5053 transitions. Word has length 25 [2022-03-03 18:41:54,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:54,224 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5053 transitions. [2022-03-03 18:41:54,224 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) [2022-03-03 18:41:54,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5053 transitions. [2022-03-03 18:41:54,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:54,226 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:54,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:54,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable443 [2022-03-03 18:41:54,226 INFO L402 AbstractCegarLoop]: === Iteration 445 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:54,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:54,226 INFO L85 PathProgramCache]: Analyzing trace with hash 675366103, now seen corresponding path program 440 times [2022-03-03 18:41:54,226 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:54,226 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365565725] [2022-03-03 18:41:54,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:54,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:54,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:54,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:54,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365565725] [2022-03-03 18:41:54,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365565725] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:54,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:54,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:54,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762638220] [2022-03-03 18:41:54,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:54,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:54,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:54,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:54,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:54,346 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) [2022-03-03 18:41:54,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:54,456 INFO L93 Difference]: Finished difference Result 2541 states and 9257 transitions. [2022-03-03 18:41:54,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:54,456 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 [2022-03-03 18:41:54,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:54,461 INFO L225 Difference]: With dead ends: 2541 [2022-03-03 18:41:54,461 INFO L226 Difference]: Without dead ends: 2338 [2022-03-03 18:41:54,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:54,461 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 [2022-03-03 18:41:54,461 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] [2022-03-03 18:41:54,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2338 states. [2022-03-03 18:41:54,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2338 to 1278. [2022-03-03 18:41:54,481 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) [2022-03-03 18:41:54,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 4997 transitions. [2022-03-03 18:41:54,483 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 4997 transitions. Word has length 25 [2022-03-03 18:41:54,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:54,483 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 4997 transitions. [2022-03-03 18:41:54,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:54,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 4997 transitions. [2022-03-03 18:41:54,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:54,485 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:54,485 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:54,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable444 [2022-03-03 18:41:54,485 INFO L402 AbstractCegarLoop]: === Iteration 446 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:54,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:54,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1128958761, now seen corresponding path program 441 times [2022-03-03 18:41:54,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:54,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297951137] [2022-03-03 18:41:54,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:54,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:54,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:54,606 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:54,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297951137] [2022-03-03 18:41:54,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297951137] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:54,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:54,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:54,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709313918] [2022-03-03 18:41:54,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:54,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:54,606 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:54,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:54,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:54,606 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) [2022-03-03 18:41:54,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:54,707 INFO L93 Difference]: Finished difference Result 2469 states and 9009 transitions. [2022-03-03 18:41:54,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:54,708 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:54,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:54,713 INFO L225 Difference]: With dead ends: 2469 [2022-03-03 18:41:54,713 INFO L226 Difference]: Without dead ends: 2310 [2022-03-03 18:41:54,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:54,713 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 [2022-03-03 18:41:54,713 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] [2022-03-03 18:41:54,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2022-03-03 18:41:54,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 1294. [2022-03-03 18:41:54,732 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) [2022-03-03 18:41:54,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5045 transitions. [2022-03-03 18:41:54,751 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5045 transitions. Word has length 25 [2022-03-03 18:41:54,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:54,751 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5045 transitions. [2022-03-03 18:41:54,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:54,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5045 transitions. [2022-03-03 18:41:54,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:54,753 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:54,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:54,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable445 [2022-03-03 18:41:54,753 INFO L402 AbstractCegarLoop]: === Iteration 447 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:54,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:54,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1774490375, now seen corresponding path program 442 times [2022-03-03 18:41:54,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:54,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344270488] [2022-03-03 18:41:54,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:54,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:54,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:54,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:54,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344270488] [2022-03-03 18:41:54,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344270488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:54,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:54,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:54,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534654698] [2022-03-03 18:41:54,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:54,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:54,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:54,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:54,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:54,874 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) [2022-03-03 18:41:54,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:54,995 INFO L93 Difference]: Finished difference Result 2357 states and 8672 transitions. [2022-03-03 18:41:54,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:54,996 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:54,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:55,000 INFO L225 Difference]: With dead ends: 2357 [2022-03-03 18:41:55,000 INFO L226 Difference]: Without dead ends: 2166 [2022-03-03 18:41:55,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:55,001 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 [2022-03-03 18:41:55,001 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] [2022-03-03 18:41:55,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2022-03-03 18:41:55,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 1278. [2022-03-03 18:41:55,020 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) [2022-03-03 18:41:55,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 4989 transitions. [2022-03-03 18:41:55,023 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 4989 transitions. Word has length 25 [2022-03-03 18:41:55,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:55,023 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 4989 transitions. [2022-03-03 18:41:55,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:55,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 4989 transitions. [2022-03-03 18:41:55,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:55,025 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:55,025 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] [2022-03-03 18:41:55,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable446 [2022-03-03 18:41:55,025 INFO L402 AbstractCegarLoop]: === Iteration 448 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:55,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:55,025 INFO L85 PathProgramCache]: Analyzing trace with hash -512166663, now seen corresponding path program 443 times [2022-03-03 18:41:55,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:55,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702152431] [2022-03-03 18:41:55,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:55,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:55,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:55,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:55,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702152431] [2022-03-03 18:41:55,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702152431] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:55,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:55,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:55,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551150587] [2022-03-03 18:41:55,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:55,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:55,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:55,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:55,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:55,146 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) [2022-03-03 18:41:55,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:55,264 INFO L93 Difference]: Finished difference Result 2505 states and 9141 transitions. [2022-03-03 18:41:55,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:55,264 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:55,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:55,269 INFO L225 Difference]: With dead ends: 2505 [2022-03-03 18:41:55,269 INFO L226 Difference]: Without dead ends: 2318 [2022-03-03 18:41:55,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:55,270 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 [2022-03-03 18:41:55,270 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] [2022-03-03 18:41:55,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2022-03-03 18:41:55,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1302. [2022-03-03 18:41:55,289 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) [2022-03-03 18:41:55,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 5065 transitions. [2022-03-03 18:41:55,291 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 5065 transitions. Word has length 25 [2022-03-03 18:41:55,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:55,292 INFO L470 AbstractCegarLoop]: Abstraction has 1302 states and 5065 transitions. [2022-03-03 18:41:55,292 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) [2022-03-03 18:41:55,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 5065 transitions. [2022-03-03 18:41:55,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:55,294 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:55,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:55,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable447 [2022-03-03 18:41:55,295 INFO L402 AbstractCegarLoop]: === Iteration 449 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:55,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:55,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1904311209, now seen corresponding path program 444 times [2022-03-03 18:41:55,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:55,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744014580] [2022-03-03 18:41:55,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:55,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:55,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:55,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:55,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744014580] [2022-03-03 18:41:55,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744014580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:55,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:55,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:55,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124028688] [2022-03-03 18:41:55,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:55,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:55,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:55,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:55,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:55,414 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) [2022-03-03 18:41:55,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:55,530 INFO L93 Difference]: Finished difference Result 2365 states and 8692 transitions. [2022-03-03 18:41:55,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:55,530 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:55,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:55,535 INFO L225 Difference]: With dead ends: 2365 [2022-03-03 18:41:55,535 INFO L226 Difference]: Without dead ends: 2158 [2022-03-03 18:41:55,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:55,536 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 [2022-03-03 18:41:55,536 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] [2022-03-03 18:41:55,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2022-03-03 18:41:55,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 1270. [2022-03-03 18:41:55,558 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) [2022-03-03 18:41:55,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4965 transitions. [2022-03-03 18:41:55,561 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4965 transitions. Word has length 25 [2022-03-03 18:41:55,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:55,561 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4965 transitions. [2022-03-03 18:41:55,561 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) [2022-03-03 18:41:55,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4965 transitions. [2022-03-03 18:41:55,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:55,563 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:55,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:55,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable448 [2022-03-03 18:41:55,563 INFO L402 AbstractCegarLoop]: === Iteration 450 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:55,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:55,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1189679947, now seen corresponding path program 445 times [2022-03-03 18:41:55,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:55,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603018014] [2022-03-03 18:41:55,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:55,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:55,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:55,684 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:55,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603018014] [2022-03-03 18:41:55,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603018014] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:55,684 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:55,685 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:55,685 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711918009] [2022-03-03 18:41:55,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:55,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:55,685 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:55,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:55,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:55,685 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) [2022-03-03 18:41:55,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:55,783 INFO L93 Difference]: Finished difference Result 2449 states and 8929 transitions. [2022-03-03 18:41:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:55,783 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:55,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:55,788 INFO L225 Difference]: With dead ends: 2449 [2022-03-03 18:41:55,788 INFO L226 Difference]: Without dead ends: 2290 [2022-03-03 18:41:55,788 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 [2022-03-03 18:41:55,788 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 114 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:55,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 151 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:55,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2022-03-03 18:41:55,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 1294. [2022-03-03 18:41:55,807 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) [2022-03-03 18:41:55,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5049 transitions. [2022-03-03 18:41:55,810 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5049 transitions. Word has length 25 [2022-03-03 18:41:55,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:55,810 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5049 transitions. [2022-03-03 18:41:55,810 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) [2022-03-03 18:41:55,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5049 transitions. [2022-03-03 18:41:55,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:55,812 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:55,812 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] [2022-03-03 18:41:55,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable449 [2022-03-03 18:41:55,812 INFO L402 AbstractCegarLoop]: === Iteration 451 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:55,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:55,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1219539625, now seen corresponding path program 446 times [2022-03-03 18:41:55,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:55,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699393573] [2022-03-03 18:41:55,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:55,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:55,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:55,931 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:55,931 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699393573] [2022-03-03 18:41:55,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699393573] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:55,931 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:55,931 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:55,931 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730078112] [2022-03-03 18:41:55,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:55,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:55,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:55,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:55,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:55,931 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) [2022-03-03 18:41:56,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:56,034 INFO L93 Difference]: Finished difference Result 2473 states and 9005 transitions. [2022-03-03 18:41:56,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:56,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:56,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:56,039 INFO L225 Difference]: With dead ends: 2473 [2022-03-03 18:41:56,039 INFO L226 Difference]: Without dead ends: 2274 [2022-03-03 18:41:56,039 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 [2022-03-03 18:41:56,039 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 [2022-03-03 18:41:56,039 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] [2022-03-03 18:41:56,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2022-03-03 18:41:56,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1278. [2022-03-03 18:41:56,058 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) [2022-03-03 18:41:56,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 4993 transitions. [2022-03-03 18:41:56,061 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 4993 transitions. Word has length 25 [2022-03-03 18:41:56,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:56,061 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 4993 transitions. [2022-03-03 18:41:56,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:56,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 4993 transitions. [2022-03-03 18:41:56,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:56,063 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:56,063 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] [2022-03-03 18:41:56,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable450 [2022-03-03 18:41:56,063 INFO L402 AbstractCegarLoop]: === Iteration 452 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:56,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:56,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1670581993, now seen corresponding path program 447 times [2022-03-03 18:41:56,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:56,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365303121] [2022-03-03 18:41:56,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:56,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:56,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:56,183 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:56,183 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365303121] [2022-03-03 18:41:56,183 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365303121] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:56,183 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:56,183 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:56,183 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155022849] [2022-03-03 18:41:56,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:56,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:56,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:56,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:56,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:56,183 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) [2022-03-03 18:41:56,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:56,279 INFO L93 Difference]: Finished difference Result 2393 states and 8717 transitions. [2022-03-03 18:41:56,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:56,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:56,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:56,284 INFO L225 Difference]: With dead ends: 2393 [2022-03-03 18:41:56,284 INFO L226 Difference]: Without dead ends: 2234 [2022-03-03 18:41:56,284 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 [2022-03-03 18:41:56,284 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 [2022-03-03 18:41:56,284 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] [2022-03-03 18:41:56,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2022-03-03 18:41:56,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 1294. [2022-03-03 18:41:56,302 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) [2022-03-03 18:41:56,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5041 transitions. [2022-03-03 18:41:56,304 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5041 transitions. Word has length 25 [2022-03-03 18:41:56,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:56,304 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5041 transitions. [2022-03-03 18:41:56,304 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) [2022-03-03 18:41:56,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5041 transitions. [2022-03-03 18:41:56,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:56,306 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:56,306 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] [2022-03-03 18:41:56,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable451 [2022-03-03 18:41:56,306 INFO L402 AbstractCegarLoop]: === Iteration 453 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:56,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:56,307 INFO L85 PathProgramCache]: Analyzing trace with hash 497415383, now seen corresponding path program 448 times [2022-03-03 18:41:56,307 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:56,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994875660] [2022-03-03 18:41:56,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:56,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:56,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:56,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:56,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994875660] [2022-03-03 18:41:56,426 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994875660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:56,426 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:56,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:56,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477219337] [2022-03-03 18:41:56,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:56,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:56,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:56,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:56,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:56,427 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) [2022-03-03 18:41:56,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:56,530 INFO L93 Difference]: Finished difference Result 2281 states and 8380 transitions. [2022-03-03 18:41:56,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:56,530 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:56,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:56,535 INFO L225 Difference]: With dead ends: 2281 [2022-03-03 18:41:56,535 INFO L226 Difference]: Without dead ends: 2090 [2022-03-03 18:41:56,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:56,535 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 104 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:56,535 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] [2022-03-03 18:41:56,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2022-03-03 18:41:56,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 1278. [2022-03-03 18:41:56,553 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) [2022-03-03 18:41:56,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 4985 transitions. [2022-03-03 18:41:56,555 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 4985 transitions. Word has length 25 [2022-03-03 18:41:56,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:56,555 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 4985 transitions. [2022-03-03 18:41:56,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:56,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 4985 transitions. [2022-03-03 18:41:56,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:56,557 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:56,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:56,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable452 [2022-03-03 18:41:56,558 INFO L402 AbstractCegarLoop]: === Iteration 454 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:56,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:56,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1194837241, now seen corresponding path program 449 times [2022-03-03 18:41:56,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:56,558 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330512124] [2022-03-03 18:41:56,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:56,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:56,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:56,686 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:56,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330512124] [2022-03-03 18:41:56,686 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330512124] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:56,686 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:56,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:56,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796414419] [2022-03-03 18:41:56,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:56,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:56,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:56,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:56,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:56,687 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) [2022-03-03 18:41:56,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:56,798 INFO L93 Difference]: Finished difference Result 2297 states and 8452 transitions. [2022-03-03 18:41:56,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:56,799 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:56,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:56,803 INFO L225 Difference]: With dead ends: 2297 [2022-03-03 18:41:56,803 INFO L226 Difference]: Without dead ends: 2114 [2022-03-03 18:41:56,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:56,803 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 91 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:56,803 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] [2022-03-03 18:41:56,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2114 states. [2022-03-03 18:41:56,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2114 to 1302. [2022-03-03 18:41:56,821 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) [2022-03-03 18:41:56,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 5061 transitions. [2022-03-03 18:41:56,824 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 5061 transitions. Word has length 25 [2022-03-03 18:41:56,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:56,824 INFO L470 AbstractCegarLoop]: Abstraction has 1302 states and 5061 transitions. [2022-03-03 18:41:56,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:56,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 5061 transitions. [2022-03-03 18:41:56,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:56,826 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:56,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:56,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable453 [2022-03-03 18:41:56,826 INFO L402 AbstractCegarLoop]: === Iteration 455 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:56,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:56,826 INFO L85 PathProgramCache]: Analyzing trace with hash -848499753, now seen corresponding path program 450 times [2022-03-03 18:41:56,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:56,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809642278] [2022-03-03 18:41:56,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:56,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:56,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:56,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:56,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809642278] [2022-03-03 18:41:56,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809642278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:56,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:56,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:56,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060665423] [2022-03-03 18:41:56,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:56,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:56,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:56,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:56,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:56,943 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) [2022-03-03 18:41:57,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:57,059 INFO L93 Difference]: Finished difference Result 2113 states and 7839 transitions. [2022-03-03 18:41:57,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:57,059 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 [2022-03-03 18:41:57,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:57,063 INFO L225 Difference]: With dead ends: 2113 [2022-03-03 18:41:57,063 INFO L226 Difference]: Without dead ends: 1906 [2022-03-03 18:41:57,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:57,064 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 [2022-03-03 18:41:57,064 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] [2022-03-03 18:41:57,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2022-03-03 18:41:57,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1270. [2022-03-03 18:41:57,081 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) [2022-03-03 18:41:57,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4961 transitions. [2022-03-03 18:41:57,083 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4961 transitions. Word has length 25 [2022-03-03 18:41:57,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:57,083 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4961 transitions. [2022-03-03 18:41:57,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:57,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4961 transitions. [2022-03-03 18:41:57,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:57,085 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:57,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:57,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable454 [2022-03-03 18:41:57,085 INFO L402 AbstractCegarLoop]: === Iteration 456 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:57,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:57,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1860018951, now seen corresponding path program 451 times [2022-03-03 18:41:57,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:57,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248683829] [2022-03-03 18:41:57,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:57,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:57,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:57,201 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:57,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248683829] [2022-03-03 18:41:57,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248683829] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:57,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:57,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:57,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674650795] [2022-03-03 18:41:57,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:57,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:57,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:57,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:57,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:57,201 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) [2022-03-03 18:41:57,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:57,297 INFO L93 Difference]: Finished difference Result 2345 states and 8652 transitions. [2022-03-03 18:41:57,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:57,297 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 [2022-03-03 18:41:57,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:57,301 INFO L225 Difference]: With dead ends: 2345 [2022-03-03 18:41:57,301 INFO L226 Difference]: Without dead ends: 2158 [2022-03-03 18:41:57,301 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 [2022-03-03 18:41:57,301 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:57,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 136 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:57,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2022-03-03 18:41:57,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 1310. [2022-03-03 18:41:57,319 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) [2022-03-03 18:41:57,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 5105 transitions. [2022-03-03 18:41:57,321 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 5105 transitions. Word has length 25 [2022-03-03 18:41:57,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:57,321 INFO L470 AbstractCegarLoop]: Abstraction has 1310 states and 5105 transitions. [2022-03-03 18:41:57,321 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) [2022-03-03 18:41:57,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 5105 transitions. [2022-03-03 18:41:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:57,323 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:57,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:57,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable455 [2022-03-03 18:41:57,323 INFO L402 AbstractCegarLoop]: === Iteration 457 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:57,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:57,324 INFO L85 PathProgramCache]: Analyzing trace with hash 391611351, now seen corresponding path program 452 times [2022-03-03 18:41:57,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:57,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947380573] [2022-03-03 18:41:57,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:57,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:57,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:57,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:57,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947380573] [2022-03-03 18:41:57,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947380573] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:57,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:57,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:57,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015404257] [2022-03-03 18:41:57,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:57,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:57,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:57,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:57,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:57,441 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) [2022-03-03 18:41:57,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:57,547 INFO L93 Difference]: Finished difference Result 2341 states and 8612 transitions. [2022-03-03 18:41:57,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:57,547 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 [2022-03-03 18:41:57,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:57,551 INFO L225 Difference]: With dead ends: 2341 [2022-03-03 18:41:57,551 INFO L226 Difference]: Without dead ends: 2130 [2022-03-03 18:41:57,551 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 [2022-03-03 18:41:57,551 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 97 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:57,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 147 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:57,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2022-03-03 18:41:57,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 1282. [2022-03-03 18:41:57,569 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) [2022-03-03 18:41:57,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 5005 transitions. [2022-03-03 18:41:57,571 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 5005 transitions. Word has length 25 [2022-03-03 18:41:57,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:57,572 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 5005 transitions. [2022-03-03 18:41:57,572 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) [2022-03-03 18:41:57,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 5005 transitions. [2022-03-03 18:41:57,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:57,573 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:57,573 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] [2022-03-03 18:41:57,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable456 [2022-03-03 18:41:57,573 INFO L402 AbstractCegarLoop]: === Iteration 458 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:57,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:57,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1588151383, now seen corresponding path program 453 times [2022-03-03 18:41:57,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:57,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894317252] [2022-03-03 18:41:57,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:57,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:57,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:57,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:57,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894317252] [2022-03-03 18:41:57,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894317252] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:57,689 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:57,689 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:57,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270937690] [2022-03-03 18:41:57,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:57,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:57,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:57,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:57,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:57,690 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) [2022-03-03 18:41:57,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:57,790 INFO L93 Difference]: Finished difference Result 2257 states and 8308 transitions. [2022-03-03 18:41:57,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:57,791 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 [2022-03-03 18:41:57,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:57,795 INFO L225 Difference]: With dead ends: 2257 [2022-03-03 18:41:57,795 INFO L226 Difference]: Without dead ends: 2070 [2022-03-03 18:41:57,795 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 [2022-03-03 18:41:57,795 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 106 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:57,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 140 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:57,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states. [2022-03-03 18:41:57,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 1306. [2022-03-03 18:41:57,813 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) [2022-03-03 18:41:57,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5081 transitions. [2022-03-03 18:41:57,815 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5081 transitions. Word has length 25 [2022-03-03 18:41:57,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:57,815 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5081 transitions. [2022-03-03 18:41:57,815 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) [2022-03-03 18:41:57,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5081 transitions. [2022-03-03 18:41:57,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:57,817 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:57,817 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] [2022-03-03 18:41:57,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable457 [2022-03-03 18:41:57,817 INFO L402 AbstractCegarLoop]: === Iteration 459 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:57,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:57,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1514349481, now seen corresponding path program 454 times [2022-03-03 18:41:57,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:57,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065476896] [2022-03-03 18:41:57,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:57,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:57,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:57,937 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:57,937 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065476896] [2022-03-03 18:41:57,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065476896] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:57,937 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:57,937 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:57,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808729815] [2022-03-03 18:41:57,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:57,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:57,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:57,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:57,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:57,938 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) [2022-03-03 18:41:58,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:58,038 INFO L93 Difference]: Finished difference Result 2117 states and 7859 transitions. [2022-03-03 18:41:58,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:58,039 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:58,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:58,043 INFO L225 Difference]: With dead ends: 2117 [2022-03-03 18:41:58,043 INFO L226 Difference]: Without dead ends: 1918 [2022-03-03 18:41:58,043 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 [2022-03-03 18:41:58,043 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 96 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:58,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 136 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:58,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2022-03-03 18:41:58,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1282. [2022-03-03 18:41:58,062 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) [2022-03-03 18:41:58,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 4993 transitions. [2022-03-03 18:41:58,065 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 4993 transitions. Word has length 25 [2022-03-03 18:41:58,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:58,065 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 4993 transitions. [2022-03-03 18:41:58,065 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) [2022-03-03 18:41:58,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 4993 transitions. [2022-03-03 18:41:58,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:58,067 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:58,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:58,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable458 [2022-03-03 18:41:58,067 INFO L402 AbstractCegarLoop]: === Iteration 460 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:58,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:58,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1724468299, now seen corresponding path program 455 times [2022-03-03 18:41:58,067 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:58,067 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566247904] [2022-03-03 18:41:58,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:58,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:58,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:58,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:58,187 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:58,187 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566247904] [2022-03-03 18:41:58,187 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566247904] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:58,187 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:58,187 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:58,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809803218] [2022-03-03 18:41:58,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:58,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:58,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:58,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:58,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:58,187 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) [2022-03-03 18:41:58,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:58,290 INFO L93 Difference]: Finished difference Result 2045 states and 7595 transitions. [2022-03-03 18:41:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:58,291 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:58,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:58,295 INFO L225 Difference]: With dead ends: 2045 [2022-03-03 18:41:58,295 INFO L226 Difference]: Without dead ends: 1862 [2022-03-03 18:41:58,295 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 [2022-03-03 18:41:58,295 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 82 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:58,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 147 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:58,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1862 states. [2022-03-03 18:41:58,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1862 to 1306. [2022-03-03 18:41:58,312 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) [2022-03-03 18:41:58,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5069 transitions. [2022-03-03 18:41:58,314 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5069 transitions. Word has length 25 [2022-03-03 18:41:58,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:58,314 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5069 transitions. [2022-03-03 18:41:58,314 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) [2022-03-03 18:41:58,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5069 transitions. [2022-03-03 18:41:58,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:58,316 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:58,316 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] [2022-03-03 18:41:58,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable459 [2022-03-03 18:41:58,316 INFO L402 AbstractCegarLoop]: === Iteration 461 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:58,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:58,317 INFO L85 PathProgramCache]: Analyzing trace with hash -643405673, now seen corresponding path program 456 times [2022-03-03 18:41:58,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:58,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997666500] [2022-03-03 18:41:58,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:58,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:58,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:58,436 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:58,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997666500] [2022-03-03 18:41:58,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997666500] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:58,436 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:58,436 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:58,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656929726] [2022-03-03 18:41:58,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:58,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:58,436 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:58,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:58,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:58,436 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) [2022-03-03 18:41:58,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:58,536 INFO L93 Difference]: Finished difference Result 1861 states and 6982 transitions. [2022-03-03 18:41:58,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:58,537 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:58,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:58,540 INFO L225 Difference]: With dead ends: 1861 [2022-03-03 18:41:58,540 INFO L226 Difference]: Without dead ends: 1646 [2022-03-03 18:41:58,540 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 [2022-03-03 18:41:58,540 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 [2022-03-03 18:41:58,540 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] [2022-03-03 18:41:58,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-03-03 18:41:58,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1266. [2022-03-03 18:41:58,556 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) [2022-03-03 18:41:58,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 4951 transitions. [2022-03-03 18:41:58,559 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 4951 transitions. Word has length 25 [2022-03-03 18:41:58,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:58,559 INFO L470 AbstractCegarLoop]: Abstraction has 1266 states and 4951 transitions. [2022-03-03 18:41:58,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:58,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 4951 transitions. [2022-03-03 18:41:58,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:58,561 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:58,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:58,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable460 [2022-03-03 18:41:58,561 INFO L402 AbstractCegarLoop]: === Iteration 462 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:58,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:58,561 INFO L85 PathProgramCache]: Analyzing trace with hash 62321913, now seen corresponding path program 457 times [2022-03-03 18:41:58,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:58,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520985748] [2022-03-03 18:41:58,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:58,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:58,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:58,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:58,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520985748] [2022-03-03 18:41:58,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520985748] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:58,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:58,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:58,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747933247] [2022-03-03 18:41:58,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:58,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:58,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:58,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:58,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:58,683 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) [2022-03-03 18:41:58,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:58,787 INFO L93 Difference]: Finished difference Result 2910 states and 10765 transitions. [2022-03-03 18:41:58,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:58,787 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:58,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:58,793 INFO L225 Difference]: With dead ends: 2910 [2022-03-03 18:41:58,793 INFO L226 Difference]: Without dead ends: 2723 [2022-03-03 18:41:58,793 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 [2022-03-03 18:41:58,793 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 103 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:58,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 138 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:58,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2022-03-03 18:41:58,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 1316. [2022-03-03 18:41:58,817 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) [2022-03-03 18:41:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 5146 transitions. [2022-03-03 18:41:58,820 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 5146 transitions. Word has length 25 [2022-03-03 18:41:58,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:58,820 INFO L470 AbstractCegarLoop]: Abstraction has 1316 states and 5146 transitions. [2022-03-03 18:41:58,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:58,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 5146 transitions. [2022-03-03 18:41:58,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:58,822 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:58,822 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] [2022-03-03 18:41:58,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable461 [2022-03-03 18:41:58,822 INFO L402 AbstractCegarLoop]: === Iteration 463 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:58,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:58,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1981015081, now seen corresponding path program 458 times [2022-03-03 18:41:58,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:58,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542262474] [2022-03-03 18:41:58,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:58,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:58,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:58,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:58,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542262474] [2022-03-03 18:41:58,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542262474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:58,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:58,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:58,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248610285] [2022-03-03 18:41:58,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:58,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:58,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:58,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:58,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:58,938 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) [2022-03-03 18:41:59,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:59,048 INFO L93 Difference]: Finished difference Result 2906 states and 10725 transitions. [2022-03-03 18:41:59,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:59,049 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 [2022-03-03 18:41:59,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:59,054 INFO L225 Difference]: With dead ends: 2906 [2022-03-03 18:41:59,054 INFO L226 Difference]: Without dead ends: 2695 [2022-03-03 18:41:59,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:41:59,054 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 [2022-03-03 18:41:59,054 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] [2022-03-03 18:41:59,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2695 states. [2022-03-03 18:41:59,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2695 to 1288. [2022-03-03 18:41:59,075 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) [2022-03-03 18:41:59,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 5046 transitions. [2022-03-03 18:41:59,078 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 5046 transitions. Word has length 25 [2022-03-03 18:41:59,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:59,078 INFO L470 AbstractCegarLoop]: Abstraction has 1288 states and 5046 transitions. [2022-03-03 18:41:59,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:59,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 5046 transitions. [2022-03-03 18:41:59,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:59,080 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:59,080 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] [2022-03-03 18:41:59,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable462 [2022-03-03 18:41:59,080 INFO L402 AbstractCegarLoop]: === Iteration 464 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:59,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:59,080 INFO L85 PathProgramCache]: Analyzing trace with hash -784475049, now seen corresponding path program 459 times [2022-03-03 18:41:59,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:59,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217352980] [2022-03-03 18:41:59,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:59,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:59,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:59,195 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:59,195 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217352980] [2022-03-03 18:41:59,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217352980] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:59,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:59,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:59,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242801564] [2022-03-03 18:41:59,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:59,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:59,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:59,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:59,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:59,195 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) [2022-03-03 18:41:59,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:59,301 INFO L93 Difference]: Finished difference Result 2898 states and 10709 transitions. [2022-03-03 18:41:59,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:59,301 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 [2022-03-03 18:41:59,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:59,306 INFO L225 Difference]: With dead ends: 2898 [2022-03-03 18:41:59,307 INFO L226 Difference]: Without dead ends: 2711 [2022-03-03 18:41:59,307 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 [2022-03-03 18:41:59,307 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 116 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:59,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 137 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:59,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states. [2022-03-03 18:41:59,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 1312. [2022-03-03 18:41:59,328 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) [2022-03-03 18:41:59,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 5122 transitions. [2022-03-03 18:41:59,331 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 5122 transitions. Word has length 25 [2022-03-03 18:41:59,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:59,331 INFO L470 AbstractCegarLoop]: Abstraction has 1312 states and 5122 transitions. [2022-03-03 18:41:59,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:59,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 5122 transitions. [2022-03-03 18:41:59,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:59,333 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:59,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:59,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable463 [2022-03-03 18:41:59,333 INFO L402 AbstractCegarLoop]: === Iteration 465 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:59,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:59,333 INFO L85 PathProgramCache]: Analyzing trace with hash 407991383, now seen corresponding path program 460 times [2022-03-03 18:41:59,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:59,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524788592] [2022-03-03 18:41:59,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:59,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:59,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:59,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:59,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524788592] [2022-03-03 18:41:59,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524788592] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:59,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:59,449 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:59,449 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259529155] [2022-03-03 18:41:59,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:59,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:59,449 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:59,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:59,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:59,449 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) [2022-03-03 18:41:59,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:59,559 INFO L93 Difference]: Finished difference Result 2886 states and 10645 transitions. [2022-03-03 18:41:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:59,559 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 [2022-03-03 18:41:59,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:59,566 INFO L225 Difference]: With dead ends: 2886 [2022-03-03 18:41:59,566 INFO L226 Difference]: Without dead ends: 2687 [2022-03-03 18:41:59,566 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 [2022-03-03 18:41:59,566 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 99 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:59,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 142 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:41:59,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2022-03-03 18:41:59,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 1288. [2022-03-03 18:41:59,587 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) [2022-03-03 18:41:59,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 5034 transitions. [2022-03-03 18:41:59,590 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 5034 transitions. Word has length 25 [2022-03-03 18:41:59,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:59,590 INFO L470 AbstractCegarLoop]: Abstraction has 1288 states and 5034 transitions. [2022-03-03 18:41:59,590 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) [2022-03-03 18:41:59,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 5034 transitions. [2022-03-03 18:41:59,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:59,592 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:59,592 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] [2022-03-03 18:41:59,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable464 [2022-03-03 18:41:59,592 INFO L402 AbstractCegarLoop]: === Iteration 466 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:59,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:59,592 INFO L85 PathProgramCache]: Analyzing trace with hash 197872565, now seen corresponding path program 461 times [2022-03-03 18:41:59,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:59,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968004572] [2022-03-03 18:41:59,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:59,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:59,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:59,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:59,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968004572] [2022-03-03 18:41:59,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968004572] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:59,709 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:59,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:59,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47498636] [2022-03-03 18:41:59,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:59,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:59,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:59,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:59,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:59,710 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) [2022-03-03 18:41:59,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:59,815 INFO L93 Difference]: Finished difference Result 2890 states and 10673 transitions. [2022-03-03 18:41:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:41:59,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:41:59,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:59,821 INFO L225 Difference]: With dead ends: 2890 [2022-03-03 18:41:59,821 INFO L226 Difference]: Without dead ends: 2707 [2022-03-03 18:41:59,821 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 [2022-03-03 18:41:59,821 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 117 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:41:59,821 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] [2022-03-03 18:41:59,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2707 states. [2022-03-03 18:41:59,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2707 to 1312. [2022-03-03 18:41:59,842 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) [2022-03-03 18:41:59,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 5110 transitions. [2022-03-03 18:41:59,845 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 5110 transitions. Word has length 25 [2022-03-03 18:41:59,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:59,845 INFO L470 AbstractCegarLoop]: Abstraction has 1312 states and 5110 transitions. [2022-03-03 18:41:59,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:59,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 5110 transitions. [2022-03-03 18:41:59,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:41:59,847 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:59,847 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] [2022-03-03 18:41:59,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable465 [2022-03-03 18:41:59,847 INFO L402 AbstractCegarLoop]: === Iteration 467 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:41:59,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:59,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1278935191, now seen corresponding path program 462 times [2022-03-03 18:41:59,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:59,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374487287] [2022-03-03 18:41:59,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:59,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:59,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:59,965 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:59,965 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374487287] [2022-03-03 18:41:59,965 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374487287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:59,965 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:59,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:41:59,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531889485] [2022-03-03 18:41:59,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:59,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:41:59,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:59,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:41:59,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:41:59,966 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) [2022-03-03 18:42:00,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:00,073 INFO L93 Difference]: Finished difference Result 2882 states and 10621 transitions. [2022-03-03 18:42:00,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:00,073 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 [2022-03-03 18:42:00,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:00,079 INFO L225 Difference]: With dead ends: 2882 [2022-03-03 18:42:00,079 INFO L226 Difference]: Without dead ends: 2671 [2022-03-03 18:42:00,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:00,080 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 116 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:00,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 129 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:00,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2022-03-03 18:42:00,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 1276. [2022-03-03 18:42:00,101 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) [2022-03-03 18:42:00,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 4996 transitions. [2022-03-03 18:42:00,104 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 4996 transitions. Word has length 25 [2022-03-03 18:42:00,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:00,104 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 4996 transitions. [2022-03-03 18:42:00,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:00,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 4996 transitions. [2022-03-03 18:42:00,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:00,106 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:00,106 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] [2022-03-03 18:42:00,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable466 [2022-03-03 18:42:00,106 INFO L402 AbstractCegarLoop]: === Iteration 468 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:00,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:00,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1901033001, now seen corresponding path program 463 times [2022-03-03 18:42:00,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:00,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611135842] [2022-03-03 18:42:00,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:00,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:00,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:00,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:00,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611135842] [2022-03-03 18:42:00,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611135842] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:00,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:00,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:00,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489029527] [2022-03-03 18:42:00,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:00,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:00,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:00,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:00,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:00,225 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) [2022-03-03 18:42:00,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:00,338 INFO L93 Difference]: Finished difference Result 2802 states and 10327 transitions. [2022-03-03 18:42:00,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:00,339 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 [2022-03-03 18:42:00,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:00,344 INFO L225 Difference]: With dead ends: 2802 [2022-03-03 18:42:00,344 INFO L226 Difference]: Without dead ends: 2615 [2022-03-03 18:42:00,344 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 [2022-03-03 18:42:00,344 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 108 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:00,344 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] [2022-03-03 18:42:00,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states. [2022-03-03 18:42:00,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 1326. [2022-03-03 18:42:00,364 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) [2022-03-03 18:42:00,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 5185 transitions. [2022-03-03 18:42:00,367 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 5185 transitions. Word has length 25 [2022-03-03 18:42:00,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:00,367 INFO L470 AbstractCegarLoop]: Abstraction has 1326 states and 5185 transitions. [2022-03-03 18:42:00,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:00,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 5185 transitions. [2022-03-03 18:42:00,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:00,369 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:00,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:00,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable467 [2022-03-03 18:42:00,369 INFO L402 AbstractCegarLoop]: === Iteration 469 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:00,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:00,369 INFO L85 PathProgramCache]: Analyzing trace with hash 350597301, now seen corresponding path program 464 times [2022-03-03 18:42:00,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:00,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994188414] [2022-03-03 18:42:00,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:00,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:00,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:00,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:00,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994188414] [2022-03-03 18:42:00,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994188414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:00,494 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:00,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:00,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282622864] [2022-03-03 18:42:00,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:00,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:00,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:00,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:00,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:00,495 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) [2022-03-03 18:42:00,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:00,608 INFO L93 Difference]: Finished difference Result 2798 states and 10287 transitions. [2022-03-03 18:42:00,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:00,609 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 [2022-03-03 18:42:00,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:00,614 INFO L225 Difference]: With dead ends: 2798 [2022-03-03 18:42:00,614 INFO L226 Difference]: Without dead ends: 2587 [2022-03-03 18:42:00,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:00,614 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 100 mSDsluCounter, 195 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 [2022-03-03 18:42:00,614 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] [2022-03-03 18:42:00,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2022-03-03 18:42:00,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 1298. [2022-03-03 18:42:00,634 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) [2022-03-03 18:42:00,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5083 transitions. [2022-03-03 18:42:00,636 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5083 transitions. Word has length 25 [2022-03-03 18:42:00,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:00,636 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5083 transitions. [2022-03-03 18:42:00,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:00,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5083 transitions. [2022-03-03 18:42:00,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:00,638 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:00,638 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] [2022-03-03 18:42:00,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable468 [2022-03-03 18:42:00,638 INFO L402 AbstractCegarLoop]: === Iteration 470 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:00,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:00,639 INFO L85 PathProgramCache]: Analyzing trace with hash 487047639, now seen corresponding path program 465 times [2022-03-03 18:42:00,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:00,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97323821] [2022-03-03 18:42:00,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:00,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:00,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:00,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:00,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97323821] [2022-03-03 18:42:00,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97323821] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:00,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:00,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:00,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739059024] [2022-03-03 18:42:00,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:00,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:00,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:00,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:00,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:00,753 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) [2022-03-03 18:42:00,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:00,864 INFO L93 Difference]: Finished difference Result 2859 states and 10515 transitions. [2022-03-03 18:42:00,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:00,864 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:00,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:00,870 INFO L225 Difference]: With dead ends: 2859 [2022-03-03 18:42:00,870 INFO L226 Difference]: Without dead ends: 2672 [2022-03-03 18:42:00,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:00,871 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 113 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:00,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 137 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:00,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2022-03-03 18:42:00,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 1344. [2022-03-03 18:42:00,897 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) [2022-03-03 18:42:00,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 5240 transitions. [2022-03-03 18:42:00,900 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 5240 transitions. Word has length 25 [2022-03-03 18:42:00,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:00,900 INFO L470 AbstractCegarLoop]: Abstraction has 1344 states and 5240 transitions. [2022-03-03 18:42:00,900 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) [2022-03-03 18:42:00,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 5240 transitions. [2022-03-03 18:42:00,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:00,902 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:00,902 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] [2022-03-03 18:42:00,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable469 [2022-03-03 18:42:00,902 INFO L402 AbstractCegarLoop]: === Iteration 471 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:00,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:00,902 INFO L85 PathProgramCache]: Analyzing trace with hash 567937495, now seen corresponding path program 466 times [2022-03-03 18:42:00,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:00,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695471978] [2022-03-03 18:42:00,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:00,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:01,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:01,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:01,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695471978] [2022-03-03 18:42:01,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695471978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:01,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:01,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:01,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817020804] [2022-03-03 18:42:01,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:01,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:01,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:01,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:01,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:01,023 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) [2022-03-03 18:42:01,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:01,127 INFO L93 Difference]: Finished difference Result 2894 states and 10604 transitions. [2022-03-03 18:42:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:01,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:01,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:01,133 INFO L225 Difference]: With dead ends: 2894 [2022-03-03 18:42:01,133 INFO L226 Difference]: Without dead ends: 2626 [2022-03-03 18:42:01,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:01,134 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 102 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:01,134 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] [2022-03-03 18:42:01,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2626 states. [2022-03-03 18:42:01,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2626 to 1298. [2022-03-03 18:42:01,154 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) [2022-03-03 18:42:01,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5061 transitions. [2022-03-03 18:42:01,157 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5061 transitions. Word has length 25 [2022-03-03 18:42:01,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:01,157 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5061 transitions. [2022-03-03 18:42:01,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:01,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5061 transitions. [2022-03-03 18:42:01,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:01,159 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:01,159 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] [2022-03-03 18:42:01,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable470 [2022-03-03 18:42:01,159 INFO L402 AbstractCegarLoop]: === Iteration 472 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:01,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:01,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1469395253, now seen corresponding path program 467 times [2022-03-03 18:42:01,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:01,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584198474] [2022-03-03 18:42:01,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:01,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:01,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:01,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:01,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584198474] [2022-03-03 18:42:01,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584198474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:01,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:01,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:01,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477997866] [2022-03-03 18:42:01,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:01,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:01,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:01,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:01,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:01,278 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) [2022-03-03 18:42:01,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:01,385 INFO L93 Difference]: Finished difference Result 2849 states and 10462 transitions. [2022-03-03 18:42:01,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:01,386 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:01,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:01,391 INFO L225 Difference]: With dead ends: 2849 [2022-03-03 18:42:01,391 INFO L226 Difference]: Without dead ends: 2666 [2022-03-03 18:42:01,391 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 [2022-03-03 18:42:01,392 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 115 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:01,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 138 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:01,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2666 states. [2022-03-03 18:42:01,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2666 to 1342. [2022-03-03 18:42:01,414 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) [2022-03-03 18:42:01,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 5213 transitions. [2022-03-03 18:42:01,417 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 5213 transitions. Word has length 25 [2022-03-03 18:42:01,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:01,417 INFO L470 AbstractCegarLoop]: Abstraction has 1342 states and 5213 transitions. [2022-03-03 18:42:01,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:01,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 5213 transitions. [2022-03-03 18:42:01,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:01,419 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:01,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:01,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable471 [2022-03-03 18:42:01,419 INFO L402 AbstractCegarLoop]: === Iteration 473 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:01,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:01,419 INFO L85 PathProgramCache]: Analyzing trace with hash 399876247, now seen corresponding path program 468 times [2022-03-03 18:42:01,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:01,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704312214] [2022-03-03 18:42:01,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:01,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:01,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:01,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:01,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704312214] [2022-03-03 18:42:01,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704312214] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:01,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:01,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:01,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568773166] [2022-03-03 18:42:01,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:01,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:01,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:01,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:01,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:01,550 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) [2022-03-03 18:42:01,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:01,645 INFO L93 Difference]: Finished difference Result 2888 states and 10565 transitions. [2022-03-03 18:42:01,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:01,645 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 [2022-03-03 18:42:01,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:01,651 INFO L225 Difference]: With dead ends: 2888 [2022-03-03 18:42:01,651 INFO L226 Difference]: Without dead ends: 2600 [2022-03-03 18:42:01,651 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 [2022-03-03 18:42:01,651 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 125 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:01,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 125 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:01,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2600 states. [2022-03-03 18:42:01,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2600 to 1276. [2022-03-03 18:42:01,672 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) [2022-03-03 18:42:01,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 4986 transitions. [2022-03-03 18:42:01,675 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 4986 transitions. Word has length 25 [2022-03-03 18:42:01,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:01,675 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 4986 transitions. [2022-03-03 18:42:01,675 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) [2022-03-03 18:42:01,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 4986 transitions. [2022-03-03 18:42:01,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:01,677 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:01,677 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] [2022-03-03 18:42:01,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable472 [2022-03-03 18:42:01,677 INFO L402 AbstractCegarLoop]: === Iteration 474 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:01,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:01,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1537186229, now seen corresponding path program 469 times [2022-03-03 18:42:01,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:01,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938805604] [2022-03-03 18:42:01,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:01,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:01,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:01,793 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:01,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938805604] [2022-03-03 18:42:01,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938805604] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:01,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:01,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:01,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696221244] [2022-03-03 18:42:01,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:01,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:01,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:01,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:01,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:01,794 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) [2022-03-03 18:42:01,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:01,904 INFO L93 Difference]: Finished difference Result 2756 states and 10128 transitions. [2022-03-03 18:42:01,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:01,904 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:01,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:01,910 INFO L225 Difference]: With dead ends: 2756 [2022-03-03 18:42:01,910 INFO L226 Difference]: Without dead ends: 2569 [2022-03-03 18:42:01,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:01,910 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 110 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:01,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 144 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:01,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2022-03-03 18:42:01,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 1320. [2022-03-03 18:42:01,932 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) [2022-03-03 18:42:01,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 5154 transitions. [2022-03-03 18:42:01,934 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 5154 transitions. Word has length 25 [2022-03-03 18:42:01,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:01,934 INFO L470 AbstractCegarLoop]: Abstraction has 1320 states and 5154 transitions. [2022-03-03 18:42:01,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:01,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 5154 transitions. [2022-03-03 18:42:01,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:01,936 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:01,937 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] [2022-03-03 18:42:01,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable473 [2022-03-03 18:42:01,937 INFO L402 AbstractCegarLoop]: === Iteration 475 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:01,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:01,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1565314635, now seen corresponding path program 470 times [2022-03-03 18:42:01,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:01,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885131974] [2022-03-03 18:42:01,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:01,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:01,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:02,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:02,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:02,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885131974] [2022-03-03 18:42:02,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885131974] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:02,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:02,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:02,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546880797] [2022-03-03 18:42:02,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:02,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:02,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:02,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:02,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:02,055 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) [2022-03-03 18:42:02,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:02,164 INFO L93 Difference]: Finished difference Result 2744 states and 10064 transitions. [2022-03-03 18:42:02,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:02,164 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 [2022-03-03 18:42:02,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:02,170 INFO L225 Difference]: With dead ends: 2744 [2022-03-03 18:42:02,170 INFO L226 Difference]: Without dead ends: 2545 [2022-03-03 18:42:02,170 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 [2022-03-03 18:42:02,170 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 106 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:02,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 140 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:02,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2022-03-03 18:42:02,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 1296. [2022-03-03 18:42:02,192 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) [2022-03-03 18:42:02,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 5066 transitions. [2022-03-03 18:42:02,194 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 5066 transitions. Word has length 25 [2022-03-03 18:42:02,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:02,194 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 5066 transitions. [2022-03-03 18:42:02,194 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) [2022-03-03 18:42:02,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 5066 transitions. [2022-03-03 18:42:02,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:02,196 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:02,196 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:02,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable474 [2022-03-03 18:42:02,196 INFO L402 AbstractCegarLoop]: === Iteration 476 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:02,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:02,197 INFO L85 PathProgramCache]: Analyzing trace with hash 919662871, now seen corresponding path program 471 times [2022-03-03 18:42:02,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:02,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66618500] [2022-03-03 18:42:02,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:02,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:02,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:02,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:02,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66618500] [2022-03-03 18:42:02,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66618500] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:02,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:02,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:02,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279761248] [2022-03-03 18:42:02,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:02,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:02,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:02,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:02,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:02,320 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) [2022-03-03 18:42:02,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:02,438 INFO L93 Difference]: Finished difference Result 2779 states and 10175 transitions. [2022-03-03 18:42:02,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:02,438 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 [2022-03-03 18:42:02,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:02,444 INFO L225 Difference]: With dead ends: 2779 [2022-03-03 18:42:02,444 INFO L226 Difference]: Without dead ends: 2592 [2022-03-03 18:42:02,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:02,444 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 103 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:02,444 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] [2022-03-03 18:42:02,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2592 states. [2022-03-03 18:42:02,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2592 to 1342. [2022-03-03 18:42:02,465 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) [2022-03-03 18:42:02,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 5223 transitions. [2022-03-03 18:42:02,468 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 5223 transitions. Word has length 25 [2022-03-03 18:42:02,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:02,468 INFO L470 AbstractCegarLoop]: Abstraction has 1342 states and 5223 transitions. [2022-03-03 18:42:02,468 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) [2022-03-03 18:42:02,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 5223 transitions. [2022-03-03 18:42:02,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:02,470 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:02,470 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] [2022-03-03 18:42:02,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable475 [2022-03-03 18:42:02,470 INFO L402 AbstractCegarLoop]: === Iteration 477 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:02,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:02,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1455124043, now seen corresponding path program 472 times [2022-03-03 18:42:02,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:02,471 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618565306] [2022-03-03 18:42:02,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:02,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:02,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:02,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:02,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618565306] [2022-03-03 18:42:02,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618565306] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:02,584 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:02,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:02,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866547905] [2022-03-03 18:42:02,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:02,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:02,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:02,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:02,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:02,585 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) [2022-03-03 18:42:02,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:02,685 INFO L93 Difference]: Finished difference Result 2814 states and 10264 transitions. [2022-03-03 18:42:02,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:02,685 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:02,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:02,690 INFO L225 Difference]: With dead ends: 2814 [2022-03-03 18:42:02,690 INFO L226 Difference]: Without dead ends: 2546 [2022-03-03 18:42:02,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:02,691 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 115 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:02,691 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] [2022-03-03 18:42:02,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2022-03-03 18:42:02,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 1296. [2022-03-03 18:42:02,711 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) [2022-03-03 18:42:02,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 5046 transitions. [2022-03-03 18:42:02,714 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 5046 transitions. Word has length 25 [2022-03-03 18:42:02,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:02,714 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 5046 transitions. [2022-03-03 18:42:02,714 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) [2022-03-03 18:42:02,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 5046 transitions. [2022-03-03 18:42:02,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:02,716 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:02,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:02,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable476 [2022-03-03 18:42:02,716 INFO L402 AbstractCegarLoop]: === Iteration 478 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:02,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:02,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1139574347, now seen corresponding path program 473 times [2022-03-03 18:42:02,716 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:02,716 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889729825] [2022-03-03 18:42:02,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:02,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:02,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:02,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:02,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889729825] [2022-03-03 18:42:02,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889729825] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:02,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:02,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:02,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537124157] [2022-03-03 18:42:02,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:02,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:02,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:02,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:02,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:02,832 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) [2022-03-03 18:42:02,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:02,949 INFO L93 Difference]: Finished difference Result 2749 states and 10052 transitions. [2022-03-03 18:42:02,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:02,949 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 [2022-03-03 18:42:02,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:02,954 INFO L225 Difference]: With dead ends: 2749 [2022-03-03 18:42:02,954 INFO L226 Difference]: Without dead ends: 2574 [2022-03-03 18:42:02,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:02,955 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 [2022-03-03 18:42:02,955 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] [2022-03-03 18:42:02,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states. [2022-03-03 18:42:02,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 1336. [2022-03-03 18:42:02,976 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) [2022-03-03 18:42:02,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 5186 transitions. [2022-03-03 18:42:02,978 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 5186 transitions. Word has length 25 [2022-03-03 18:42:02,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:02,979 INFO L470 AbstractCegarLoop]: Abstraction has 1336 states and 5186 transitions. [2022-03-03 18:42:02,979 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) [2022-03-03 18:42:02,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 5186 transitions. [2022-03-03 18:42:02,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:02,980 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:02,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:02,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable477 [2022-03-03 18:42:02,981 INFO L402 AbstractCegarLoop]: === Iteration 479 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:02,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:02,981 INFO L85 PathProgramCache]: Analyzing trace with hash -921222761, now seen corresponding path program 474 times [2022-03-03 18:42:02,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:02,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585220362] [2022-03-03 18:42:02,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:02,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:03,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:03,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:03,098 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585220362] [2022-03-03 18:42:03,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585220362] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:03,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:03,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:03,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178335742] [2022-03-03 18:42:03,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:03,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:03,098 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:03,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:03,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:03,099 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) [2022-03-03 18:42:03,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:03,199 INFO L93 Difference]: Finished difference Result 2701 states and 9852 transitions. [2022-03-03 18:42:03,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:03,200 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:03,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:03,205 INFO L225 Difference]: With dead ends: 2701 [2022-03-03 18:42:03,205 INFO L226 Difference]: Without dead ends: 2419 [2022-03-03 18:42:03,205 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 [2022-03-03 18:42:03,206 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 112 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:03,206 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] [2022-03-03 18:42:03,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2419 states. [2022-03-03 18:42:03,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2419 to 1276. [2022-03-03 18:42:03,225 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) [2022-03-03 18:42:03,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 4976 transitions. [2022-03-03 18:42:03,228 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 4976 transitions. Word has length 25 [2022-03-03 18:42:03,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:03,228 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 4976 transitions. [2022-03-03 18:42:03,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:03,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 4976 transitions. [2022-03-03 18:42:03,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:03,230 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:03,230 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:03,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable478 [2022-03-03 18:42:03,230 INFO L402 AbstractCegarLoop]: === Iteration 480 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:03,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:03,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1785384557, now seen corresponding path program 475 times [2022-03-03 18:42:03,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:03,230 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092352736] [2022-03-03 18:42:03,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:03,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:03,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:03,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:03,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092352736] [2022-03-03 18:42:03,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092352736] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:03,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:03,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:03,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212094626] [2022-03-03 18:42:03,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:03,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:03,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:03,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:03,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:03,349 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) [2022-03-03 18:42:03,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:03,452 INFO L93 Difference]: Finished difference Result 2678 states and 9803 transitions. [2022-03-03 18:42:03,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:03,453 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 [2022-03-03 18:42:03,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:03,458 INFO L225 Difference]: With dead ends: 2678 [2022-03-03 18:42:03,458 INFO L226 Difference]: Without dead ends: 2495 [2022-03-03 18:42:03,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:03,458 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 118 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:03,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 130 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:03,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states. [2022-03-03 18:42:03,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 1320. [2022-03-03 18:42:03,478 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) [2022-03-03 18:42:03,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 5144 transitions. [2022-03-03 18:42:03,481 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 5144 transitions. Word has length 25 [2022-03-03 18:42:03,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:03,481 INFO L470 AbstractCegarLoop]: Abstraction has 1320 states and 5144 transitions. [2022-03-03 18:42:03,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:03,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 5144 transitions. [2022-03-03 18:42:03,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:03,483 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:03,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:03,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable479 [2022-03-03 18:42:03,483 INFO L402 AbstractCegarLoop]: === Iteration 481 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:03,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:03,483 INFO L85 PathProgramCache]: Analyzing trace with hash -704321931, now seen corresponding path program 476 times [2022-03-03 18:42:03,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:03,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919081834] [2022-03-03 18:42:03,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:03,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:03,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:03,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:03,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919081834] [2022-03-03 18:42:03,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919081834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:03,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:03,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:03,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981784369] [2022-03-03 18:42:03,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:03,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:03,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:03,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:03,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:03,602 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) [2022-03-03 18:42:03,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:03,719 INFO L93 Difference]: Finished difference Result 2670 states and 9751 transitions. [2022-03-03 18:42:03,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:03,720 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 [2022-03-03 18:42:03,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:03,725 INFO L225 Difference]: With dead ends: 2670 [2022-03-03 18:42:03,725 INFO L226 Difference]: Without dead ends: 2471 [2022-03-03 18:42:03,725 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 [2022-03-03 18:42:03,725 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 104 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:03,725 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] [2022-03-03 18:42:03,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2022-03-03 18:42:03,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 1296. [2022-03-03 18:42:03,745 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) [2022-03-03 18:42:03,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 5056 transitions. [2022-03-03 18:42:03,748 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 5056 transitions. Word has length 25 [2022-03-03 18:42:03,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:03,748 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 5056 transitions. [2022-03-03 18:42:03,748 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) [2022-03-03 18:42:03,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 5056 transitions. [2022-03-03 18:42:03,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:03,750 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:03,750 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] [2022-03-03 18:42:03,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable480 [2022-03-03 18:42:03,750 INFO L402 AbstractCegarLoop]: === Iteration 482 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:03,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:03,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1892059381, now seen corresponding path program 477 times [2022-03-03 18:42:03,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:03,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706119141] [2022-03-03 18:42:03,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:03,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:03,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:03,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:03,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706119141] [2022-03-03 18:42:03,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706119141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:03,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:03,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:03,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654082602] [2022-03-03 18:42:03,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:03,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:03,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:03,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:03,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:03,871 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) [2022-03-03 18:42:03,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:03,984 INFO L93 Difference]: Finished difference Result 2606 states and 9515 transitions. [2022-03-03 18:42:03,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:03,986 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:03,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:03,991 INFO L225 Difference]: With dead ends: 2606 [2022-03-03 18:42:03,991 INFO L226 Difference]: Without dead ends: 2423 [2022-03-03 18:42:03,991 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 [2022-03-03 18:42:03,992 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 114 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:03,992 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] [2022-03-03 18:42:03,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2022-03-03 18:42:04,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 1340. [2022-03-03 18:42:04,012 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) [2022-03-03 18:42:04,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 5208 transitions. [2022-03-03 18:42:04,015 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 5208 transitions. Word has length 25 [2022-03-03 18:42:04,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:04,015 INFO L470 AbstractCegarLoop]: Abstraction has 1340 states and 5208 transitions. [2022-03-03 18:42:04,015 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) [2022-03-03 18:42:04,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 5208 transitions. [2022-03-03 18:42:04,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:04,017 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:04,017 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] [2022-03-03 18:42:04,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable481 [2022-03-03 18:42:04,017 INFO L402 AbstractCegarLoop]: === Iteration 483 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:04,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:04,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1633136395, now seen corresponding path program 478 times [2022-03-03 18:42:04,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:04,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309892262] [2022-03-03 18:42:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:04,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:04,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:04,140 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:04,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309892262] [2022-03-03 18:42:04,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309892262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:04,140 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:04,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:04,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19637340] [2022-03-03 18:42:04,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:04,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:04,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:04,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:04,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:04,140 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) [2022-03-03 18:42:04,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:04,246 INFO L93 Difference]: Finished difference Result 2645 states and 9618 transitions. [2022-03-03 18:42:04,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:04,246 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:04,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:04,251 INFO L225 Difference]: With dead ends: 2645 [2022-03-03 18:42:04,251 INFO L226 Difference]: Without dead ends: 2379 [2022-03-03 18:42:04,252 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 [2022-03-03 18:42:04,252 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 [2022-03-03 18:42:04,252 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] [2022-03-03 18:42:04,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2022-03-03 18:42:04,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 1296. [2022-03-03 18:42:04,271 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) [2022-03-03 18:42:04,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 5036 transitions. [2022-03-03 18:42:04,274 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 5036 transitions. Word has length 25 [2022-03-03 18:42:04,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:04,274 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 5036 transitions. [2022-03-03 18:42:04,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:04,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 5036 transitions. [2022-03-03 18:42:04,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:04,276 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:04,276 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] [2022-03-03 18:42:04,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable482 [2022-03-03 18:42:04,276 INFO L402 AbstractCegarLoop]: === Iteration 484 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:04,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:04,276 INFO L85 PathProgramCache]: Analyzing trace with hash -2014902953, now seen corresponding path program 479 times [2022-03-03 18:42:04,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:04,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802148026] [2022-03-03 18:42:04,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:04,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:04,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:04,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:04,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802148026] [2022-03-03 18:42:04,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802148026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:04,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:04,392 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:04,392 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283058825] [2022-03-03 18:42:04,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:04,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:04,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:04,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:04,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:04,392 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) [2022-03-03 18:42:04,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:04,503 INFO L93 Difference]: Finished difference Result 2546 states and 9259 transitions. [2022-03-03 18:42:04,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:04,504 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 [2022-03-03 18:42:04,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:04,508 INFO L225 Difference]: With dead ends: 2546 [2022-03-03 18:42:04,509 INFO L226 Difference]: Without dead ends: 2371 [2022-03-03 18:42:04,509 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 [2022-03-03 18:42:04,509 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 [2022-03-03 18:42:04,509 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] [2022-03-03 18:42:04,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2022-03-03 18:42:04,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 1336. [2022-03-03 18:42:04,528 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) [2022-03-03 18:42:04,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 5176 transitions. [2022-03-03 18:42:04,531 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 5176 transitions. Word has length 25 [2022-03-03 18:42:04,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:04,531 INFO L470 AbstractCegarLoop]: Abstraction has 1336 states and 5176 transitions. [2022-03-03 18:42:04,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:04,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 5176 transitions. [2022-03-03 18:42:04,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:04,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:04,533 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] [2022-03-03 18:42:04,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable483 [2022-03-03 18:42:04,533 INFO L402 AbstractCegarLoop]: === Iteration 485 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:04,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:04,533 INFO L85 PathProgramCache]: Analyzing trace with hash 459028917, now seen corresponding path program 480 times [2022-03-03 18:42:04,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:04,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677056582] [2022-03-03 18:42:04,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:04,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:04,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:04,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:04,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677056582] [2022-03-03 18:42:04,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677056582] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:04,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:04,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:04,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419510968] [2022-03-03 18:42:04,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:04,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:04,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:04,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:04,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:04,651 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) [2022-03-03 18:42:04,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:04,753 INFO L93 Difference]: Finished difference Result 2498 states and 9059 transitions. [2022-03-03 18:42:04,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:04,753 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 [2022-03-03 18:42:04,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:04,758 INFO L225 Difference]: With dead ends: 2498 [2022-03-03 18:42:04,758 INFO L226 Difference]: Without dead ends: 2202 [2022-03-03 18:42:04,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:04,758 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 [2022-03-03 18:42:04,758 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] [2022-03-03 18:42:04,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states. [2022-03-03 18:42:04,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 1262. [2022-03-03 18:42:04,777 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) [2022-03-03 18:42:04,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4941 transitions. [2022-03-03 18:42:04,779 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4941 transitions. Word has length 25 [2022-03-03 18:42:04,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:04,780 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4941 transitions. [2022-03-03 18:42:04,780 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) [2022-03-03 18:42:04,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4941 transitions. [2022-03-03 18:42:04,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:04,781 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:04,781 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] [2022-03-03 18:42:04,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable484 [2022-03-03 18:42:04,782 INFO L402 AbstractCegarLoop]: === Iteration 486 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:04,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:04,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1249862383, now seen corresponding path program 481 times [2022-03-03 18:42:04,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:04,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953695315] [2022-03-03 18:42:04,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:04,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:04,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:04,897 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:04,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953695315] [2022-03-03 18:42:04,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953695315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:04,897 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:04,898 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:04,898 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436728998] [2022-03-03 18:42:04,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:04,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:04,898 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:04,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:04,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:04,898 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) [2022-03-03 18:42:04,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:04,991 INFO L93 Difference]: Finished difference Result 2545 states and 9271 transitions. [2022-03-03 18:42:04,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:04,991 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:04,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:04,996 INFO L225 Difference]: With dead ends: 2545 [2022-03-03 18:42:04,996 INFO L226 Difference]: Without dead ends: 2386 [2022-03-03 18:42:04,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:04,996 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 110 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:04,996 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] [2022-03-03 18:42:04,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states. [2022-03-03 18:42:05,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 1286. [2022-03-03 18:42:05,016 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) [2022-03-03 18:42:05,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5025 transitions. [2022-03-03 18:42:05,019 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5025 transitions. Word has length 25 [2022-03-03 18:42:05,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:05,019 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5025 transitions. [2022-03-03 18:42:05,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:05,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5025 transitions. [2022-03-03 18:42:05,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:05,020 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:05,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:05,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable485 [2022-03-03 18:42:05,021 INFO L402 AbstractCegarLoop]: === Iteration 487 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:05,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:05,021 INFO L85 PathProgramCache]: Analyzing trace with hash -340072367, now seen corresponding path program 482 times [2022-03-03 18:42:05,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:05,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116650603] [2022-03-03 18:42:05,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:05,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:05,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:05,139 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:05,139 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116650603] [2022-03-03 18:42:05,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116650603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:05,139 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:05,139 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:05,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636620961] [2022-03-03 18:42:05,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:05,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:05,139 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:05,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:05,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:05,140 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) [2022-03-03 18:42:05,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:05,243 INFO L93 Difference]: Finished difference Result 2575 states and 9364 transitions. [2022-03-03 18:42:05,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:05,243 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 [2022-03-03 18:42:05,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:05,249 INFO L225 Difference]: With dead ends: 2575 [2022-03-03 18:42:05,249 INFO L226 Difference]: Without dead ends: 2370 [2022-03-03 18:42:05,249 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 [2022-03-03 18:42:05,249 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 143 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:05,250 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] [2022-03-03 18:42:05,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states. [2022-03-03 18:42:05,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 1270. [2022-03-03 18:42:05,273 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) [2022-03-03 18:42:05,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4969 transitions. [2022-03-03 18:42:05,276 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4969 transitions. Word has length 25 [2022-03-03 18:42:05,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:05,276 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4969 transitions. [2022-03-03 18:42:05,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:05,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4969 transitions. [2022-03-03 18:42:05,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:05,278 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:05,278 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] [2022-03-03 18:42:05,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable486 [2022-03-03 18:42:05,278 INFO L402 AbstractCegarLoop]: === Iteration 488 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:05,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:05,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1964042287, now seen corresponding path program 483 times [2022-03-03 18:42:05,278 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:05,278 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670347343] [2022-03-03 18:42:05,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:05,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:05,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:05,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:05,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670347343] [2022-03-03 18:42:05,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670347343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:05,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:05,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:05,401 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984569236] [2022-03-03 18:42:05,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:05,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:05,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:05,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:05,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:05,402 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) [2022-03-03 18:42:05,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:05,495 INFO L93 Difference]: Finished difference Result 2543 states and 9258 transitions. [2022-03-03 18:42:05,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:05,495 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 [2022-03-03 18:42:05,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:05,500 INFO L225 Difference]: With dead ends: 2543 [2022-03-03 18:42:05,500 INFO L226 Difference]: Without dead ends: 2384 [2022-03-03 18:42:05,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:05,501 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 119 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:05,501 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] [2022-03-03 18:42:05,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2022-03-03 18:42:05,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 1286. [2022-03-03 18:42:05,523 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) [2022-03-03 18:42:05,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5017 transitions. [2022-03-03 18:42:05,526 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5017 transitions. Word has length 25 [2022-03-03 18:42:05,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:05,526 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5017 transitions. [2022-03-03 18:42:05,526 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) [2022-03-03 18:42:05,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5017 transitions. [2022-03-03 18:42:05,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:05,528 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:05,528 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] [2022-03-03 18:42:05,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable487 [2022-03-03 18:42:05,528 INFO L402 AbstractCegarLoop]: === Iteration 489 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:05,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:05,528 INFO L85 PathProgramCache]: Analyzing trace with hash -955744303, now seen corresponding path program 484 times [2022-03-03 18:42:05,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:05,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823932511] [2022-03-03 18:42:05,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:05,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:05,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:05,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:05,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823932511] [2022-03-03 18:42:05,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823932511] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:05,652 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:05,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:05,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766399783] [2022-03-03 18:42:05,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:05,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:05,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:05,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:05,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:05,653 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) [2022-03-03 18:42:05,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:05,764 INFO L93 Difference]: Finished difference Result 2571 states and 9346 transitions. [2022-03-03 18:42:05,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:05,765 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:05,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:05,770 INFO L225 Difference]: With dead ends: 2571 [2022-03-03 18:42:05,770 INFO L226 Difference]: Without dead ends: 2368 [2022-03-03 18:42:05,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:05,770 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 [2022-03-03 18:42:05,770 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] [2022-03-03 18:42:05,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2022-03-03 18:42:05,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 1270. [2022-03-03 18:42:05,793 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) [2022-03-03 18:42:05,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4961 transitions. [2022-03-03 18:42:05,796 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4961 transitions. Word has length 25 [2022-03-03 18:42:05,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:05,796 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4961 transitions. [2022-03-03 18:42:05,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:05,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4961 transitions. [2022-03-03 18:42:05,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:05,798 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:05,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:05,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable488 [2022-03-03 18:42:05,798 INFO L402 AbstractCegarLoop]: === Iteration 490 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:05,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:05,798 INFO L85 PathProgramCache]: Analyzing trace with hash -546880333, now seen corresponding path program 485 times [2022-03-03 18:42:05,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:05,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727637880] [2022-03-03 18:42:05,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:05,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:05,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:05,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:05,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727637880] [2022-03-03 18:42:05,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727637880] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:05,922 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:05,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:05,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409401908] [2022-03-03 18:42:05,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:05,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:05,922 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:05,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:05,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:05,923 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) [2022-03-03 18:42:06,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:06,030 INFO L93 Difference]: Finished difference Result 2617 states and 9527 transitions. [2022-03-03 18:42:06,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:06,031 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 [2022-03-03 18:42:06,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:06,037 INFO L225 Difference]: With dead ends: 2617 [2022-03-03 18:42:06,037 INFO L226 Difference]: Without dead ends: 2428 [2022-03-03 18:42:06,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:06,037 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 [2022-03-03 18:42:06,037 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] [2022-03-03 18:42:06,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2022-03-03 18:42:06,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 1300. [2022-03-03 18:42:06,071 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) [2022-03-03 18:42:06,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 5054 transitions. [2022-03-03 18:42:06,074 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 5054 transitions. Word has length 25 [2022-03-03 18:42:06,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:06,074 INFO L470 AbstractCegarLoop]: Abstraction has 1300 states and 5054 transitions. [2022-03-03 18:42:06,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:06,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 5054 transitions. [2022-03-03 18:42:06,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:06,076 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:06,076 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:06,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable489 [2022-03-03 18:42:06,076 INFO L402 AbstractCegarLoop]: === Iteration 491 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:06,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:06,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1704749969, now seen corresponding path program 486 times [2022-03-03 18:42:06,077 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:06,077 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068531453] [2022-03-03 18:42:06,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:06,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:06,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:06,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:06,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068531453] [2022-03-03 18:42:06,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068531453] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:06,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:06,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:06,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288182796] [2022-03-03 18:42:06,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:06,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:06,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:06,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:06,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:06,195 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) [2022-03-03 18:42:06,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:06,299 INFO L93 Difference]: Finished difference Result 2615 states and 9492 transitions. [2022-03-03 18:42:06,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:06,299 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:06,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:06,305 INFO L225 Difference]: With dead ends: 2615 [2022-03-03 18:42:06,305 INFO L226 Difference]: Without dead ends: 2390 [2022-03-03 18:42:06,305 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 [2022-03-03 18:42:06,305 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 [2022-03-03 18:42:06,306 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] [2022-03-03 18:42:06,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2022-03-03 18:42:06,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 1262. [2022-03-03 18:42:06,328 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) [2022-03-03 18:42:06,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4937 transitions. [2022-03-03 18:42:06,331 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4937 transitions. Word has length 25 [2022-03-03 18:42:06,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:06,331 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4937 transitions. [2022-03-03 18:42:06,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:06,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4937 transitions. [2022-03-03 18:42:06,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:06,333 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:06,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:06,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable490 [2022-03-03 18:42:06,333 INFO L402 AbstractCegarLoop]: === Iteration 492 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:06,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:06,334 INFO L85 PathProgramCache]: Analyzing trace with hash 768960337, now seen corresponding path program 487 times [2022-03-03 18:42:06,334 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:06,334 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914162947] [2022-03-03 18:42:06,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:06,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:06,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:06,450 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:06,450 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914162947] [2022-03-03 18:42:06,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914162947] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:06,450 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:06,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:06,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920387656] [2022-03-03 18:42:06,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:06,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:06,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:06,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:06,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:06,451 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) [2022-03-03 18:42:06,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:06,545 INFO L93 Difference]: Finished difference Result 2539 states and 9248 transitions. [2022-03-03 18:42:06,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:06,546 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:06,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:06,551 INFO L225 Difference]: With dead ends: 2539 [2022-03-03 18:42:06,551 INFO L226 Difference]: Without dead ends: 2380 [2022-03-03 18:42:06,551 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 [2022-03-03 18:42:06,551 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 [2022-03-03 18:42:06,551 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] [2022-03-03 18:42:06,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2022-03-03 18:42:06,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 1286. [2022-03-03 18:42:06,574 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) [2022-03-03 18:42:06,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5021 transitions. [2022-03-03 18:42:06,577 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5021 transitions. Word has length 25 [2022-03-03 18:42:06,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:06,577 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5021 transitions. [2022-03-03 18:42:06,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:06,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5021 transitions. [2022-03-03 18:42:06,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:06,579 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:06,579 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:06,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable491 [2022-03-03 18:42:06,579 INFO L402 AbstractCegarLoop]: === Iteration 493 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:06,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:06,579 INFO L85 PathProgramCache]: Analyzing trace with hash -820974413, now seen corresponding path program 488 times [2022-03-03 18:42:06,579 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:06,579 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415545898] [2022-03-03 18:42:06,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:06,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:06,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:06,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:06,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415545898] [2022-03-03 18:42:06,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415545898] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:06,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:06,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:06,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867400351] [2022-03-03 18:42:06,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:06,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:06,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:06,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:06,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:06,697 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) [2022-03-03 18:42:06,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:06,805 INFO L93 Difference]: Finished difference Result 2569 states and 9341 transitions. [2022-03-03 18:42:06,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:06,806 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:06,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:06,811 INFO L225 Difference]: With dead ends: 2569 [2022-03-03 18:42:06,811 INFO L226 Difference]: Without dead ends: 2364 [2022-03-03 18:42:06,812 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 [2022-03-03 18:42:06,812 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 [2022-03-03 18:42:06,812 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] [2022-03-03 18:42:06,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2364 states. [2022-03-03 18:42:06,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2364 to 1270. [2022-03-03 18:42:06,834 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) [2022-03-03 18:42:06,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4965 transitions. [2022-03-03 18:42:06,837 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4965 transitions. Word has length 25 [2022-03-03 18:42:06,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:06,837 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4965 transitions. [2022-03-03 18:42:06,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:06,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4965 transitions. [2022-03-03 18:42:06,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:06,839 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:06,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:06,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable492 [2022-03-03 18:42:06,839 INFO L402 AbstractCegarLoop]: === Iteration 494 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:06,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:06,840 INFO L85 PathProgramCache]: Analyzing trace with hash -919285935, now seen corresponding path program 489 times [2022-03-03 18:42:06,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:06,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29837422] [2022-03-03 18:42:06,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:06,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:06,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:06,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:06,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29837422] [2022-03-03 18:42:06,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29837422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:06,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:06,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:06,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018104241] [2022-03-03 18:42:06,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:06,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:06,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:06,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:06,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:06,958 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) [2022-03-03 18:42:07,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:07,061 INFO L93 Difference]: Finished difference Result 2533 states and 9223 transitions. [2022-03-03 18:42:07,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:07,062 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 [2022-03-03 18:42:07,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:07,067 INFO L225 Difference]: With dead ends: 2533 [2022-03-03 18:42:07,067 INFO L226 Difference]: Without dead ends: 2374 [2022-03-03 18:42:07,067 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 [2022-03-03 18:42:07,067 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:07,067 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] [2022-03-03 18:42:07,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2022-03-03 18:42:07,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 1286. [2022-03-03 18:42:07,087 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) [2022-03-03 18:42:07,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5013 transitions. [2022-03-03 18:42:07,090 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5013 transitions. Word has length 25 [2022-03-03 18:42:07,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:07,090 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5013 transitions. [2022-03-03 18:42:07,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:07,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5013 transitions. [2022-03-03 18:42:07,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:07,092 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:07,092 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] [2022-03-03 18:42:07,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable493 [2022-03-03 18:42:07,092 INFO L402 AbstractCegarLoop]: === Iteration 495 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:07,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:07,092 INFO L85 PathProgramCache]: Analyzing trace with hash 761210705, now seen corresponding path program 490 times [2022-03-03 18:42:07,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:07,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041403160] [2022-03-03 18:42:07,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:07,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:07,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:07,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:07,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041403160] [2022-03-03 18:42:07,208 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041403160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:07,208 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:07,209 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:07,209 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814055931] [2022-03-03 18:42:07,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:07,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:07,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:07,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:07,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:07,209 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) [2022-03-03 18:42:07,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:07,316 INFO L93 Difference]: Finished difference Result 2557 states and 9299 transitions. [2022-03-03 18:42:07,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:07,317 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 [2022-03-03 18:42:07,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:07,322 INFO L225 Difference]: With dead ends: 2557 [2022-03-03 18:42:07,322 INFO L226 Difference]: Without dead ends: 2358 [2022-03-03 18:42:07,322 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 [2022-03-03 18:42:07,322 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 102 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:07,322 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] [2022-03-03 18:42:07,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states. [2022-03-03 18:42:07,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 1270. [2022-03-03 18:42:07,341 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) [2022-03-03 18:42:07,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4957 transitions. [2022-03-03 18:42:07,344 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4957 transitions. Word has length 25 [2022-03-03 18:42:07,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:07,344 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4957 transitions. [2022-03-03 18:42:07,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:07,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4957 transitions. [2022-03-03 18:42:07,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:07,346 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:07,346 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] [2022-03-03 18:42:07,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable494 [2022-03-03 18:42:07,346 INFO L402 AbstractCegarLoop]: === Iteration 496 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:07,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:07,346 INFO L85 PathProgramCache]: Analyzing trace with hash 497876019, now seen corresponding path program 491 times [2022-03-03 18:42:07,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:07,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718162451] [2022-03-03 18:42:07,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:07,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:07,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:07,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:07,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718162451] [2022-03-03 18:42:07,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718162451] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:07,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:07,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:07,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023832277] [2022-03-03 18:42:07,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:07,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:07,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:07,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:07,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:07,463 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) [2022-03-03 18:42:07,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:07,571 INFO L93 Difference]: Finished difference Result 2605 states and 9485 transitions. [2022-03-03 18:42:07,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:07,571 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 [2022-03-03 18:42:07,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:07,576 INFO L225 Difference]: With dead ends: 2605 [2022-03-03 18:42:07,576 INFO L226 Difference]: Without dead ends: 2416 [2022-03-03 18:42:07,576 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 [2022-03-03 18:42:07,576 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:07,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 159 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:07,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2022-03-03 18:42:07,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 1298. [2022-03-03 18:42:07,596 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) [2022-03-03 18:42:07,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5045 transitions. [2022-03-03 18:42:07,598 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5045 transitions. Word has length 25 [2022-03-03 18:42:07,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:07,599 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5045 transitions. [2022-03-03 18:42:07,599 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) [2022-03-03 18:42:07,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5045 transitions. [2022-03-03 18:42:07,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:07,600 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:07,600 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] [2022-03-03 18:42:07,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable495 [2022-03-03 18:42:07,601 INFO L402 AbstractCegarLoop]: === Iteration 497 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:07,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:07,601 INFO L85 PathProgramCache]: Analyzing trace with hash -894268527, now seen corresponding path program 492 times [2022-03-03 18:42:07,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:07,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649246946] [2022-03-03 18:42:07,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:07,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:07,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:07,716 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:07,716 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649246946] [2022-03-03 18:42:07,716 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649246946] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:07,716 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:07,716 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:07,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242049976] [2022-03-03 18:42:07,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:07,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:07,717 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:07,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:07,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:07,717 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) [2022-03-03 18:42:07,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:07,831 INFO L93 Difference]: Finished difference Result 2599 states and 9440 transitions. [2022-03-03 18:42:07,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:07,831 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 [2022-03-03 18:42:07,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:07,836 INFO L225 Difference]: With dead ends: 2599 [2022-03-03 18:42:07,837 INFO L226 Difference]: Without dead ends: 2380 [2022-03-03 18:42:07,837 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 [2022-03-03 18:42:07,837 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 97 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:07,837 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] [2022-03-03 18:42:07,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2022-03-03 18:42:07,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 1262. [2022-03-03 18:42:07,856 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) [2022-03-03 18:42:07,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4933 transitions. [2022-03-03 18:42:07,859 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4933 transitions. Word has length 25 [2022-03-03 18:42:07,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:07,859 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4933 transitions. [2022-03-03 18:42:07,859 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) [2022-03-03 18:42:07,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4933 transitions. [2022-03-03 18:42:07,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:07,861 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:07,861 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] [2022-03-03 18:42:07,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable496 [2022-03-03 18:42:07,861 INFO L402 AbstractCegarLoop]: === Iteration 498 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:07,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:07,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1156965299, now seen corresponding path program 493 times [2022-03-03 18:42:07,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:07,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127673099] [2022-03-03 18:42:07,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:07,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:07,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:07,987 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:07,987 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127673099] [2022-03-03 18:42:07,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127673099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:07,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:07,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:07,987 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557848861] [2022-03-03 18:42:07,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:07,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:07,987 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:07,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:07,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:07,988 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) [2022-03-03 18:42:08,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:08,086 INFO L93 Difference]: Finished difference Result 2535 states and 9234 transitions. [2022-03-03 18:42:08,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:08,086 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 [2022-03-03 18:42:08,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:08,092 INFO L225 Difference]: With dead ends: 2535 [2022-03-03 18:42:08,092 INFO L226 Difference]: Without dead ends: 2376 [2022-03-03 18:42:08,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:08,092 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:08,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 159 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:08,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states. [2022-03-03 18:42:08,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 1286. [2022-03-03 18:42:08,111 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) [2022-03-03 18:42:08,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5017 transitions. [2022-03-03 18:42:08,114 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5017 transitions. Word has length 25 [2022-03-03 18:42:08,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:08,114 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5017 transitions. [2022-03-03 18:42:08,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:08,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5017 transitions. [2022-03-03 18:42:08,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:08,116 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:08,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:08,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable497 [2022-03-03 18:42:08,116 INFO L402 AbstractCegarLoop]: === Iteration 499 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:08,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:08,116 INFO L85 PathProgramCache]: Analyzing trace with hash -2129704013, now seen corresponding path program 494 times [2022-03-03 18:42:08,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:08,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207817509] [2022-03-03 18:42:08,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:08,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:08,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:08,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:08,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207817509] [2022-03-03 18:42:08,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207817509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:08,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:08,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:08,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405543565] [2022-03-03 18:42:08,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:08,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:08,232 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:08,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:08,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:08,232 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) [2022-03-03 18:42:08,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:08,345 INFO L93 Difference]: Finished difference Result 2563 states and 9322 transitions. [2022-03-03 18:42:08,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:08,345 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:08,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:08,350 INFO L225 Difference]: With dead ends: 2563 [2022-03-03 18:42:08,350 INFO L226 Difference]: Without dead ends: 2360 [2022-03-03 18:42:08,351 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 [2022-03-03 18:42:08,351 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 97 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:08,351 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] [2022-03-03 18:42:08,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2022-03-03 18:42:08,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 1270. [2022-03-03 18:42:08,370 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) [2022-03-03 18:42:08,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4961 transitions. [2022-03-03 18:42:08,373 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4961 transitions. Word has length 25 [2022-03-03 18:42:08,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:08,373 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4961 transitions. [2022-03-03 18:42:08,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:08,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4961 transitions. [2022-03-03 18:42:08,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:08,375 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:08,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:08,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable498 [2022-03-03 18:42:08,375 INFO L402 AbstractCegarLoop]: === Iteration 500 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:08,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:08,375 INFO L85 PathProgramCache]: Analyzing trace with hash 310168337, now seen corresponding path program 495 times [2022-03-03 18:42:08,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:08,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163453840] [2022-03-03 18:42:08,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:08,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:08,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:08,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:08,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163453840] [2022-03-03 18:42:08,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163453840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:08,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:08,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:08,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632327093] [2022-03-03 18:42:08,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:08,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:08,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:08,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:08,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:08,492 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) [2022-03-03 18:42:08,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:08,592 INFO L93 Difference]: Finished difference Result 2531 states and 9214 transitions. [2022-03-03 18:42:08,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:08,592 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:08,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:08,597 INFO L225 Difference]: With dead ends: 2531 [2022-03-03 18:42:08,597 INFO L226 Difference]: Without dead ends: 2372 [2022-03-03 18:42:08,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:08,598 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:08,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 160 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:08,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2372 states. [2022-03-03 18:42:08,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2372 to 1286. [2022-03-03 18:42:08,617 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) [2022-03-03 18:42:08,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5009 transitions. [2022-03-03 18:42:08,619 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5009 transitions. Word has length 25 [2022-03-03 18:42:08,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:08,619 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5009 transitions. [2022-03-03 18:42:08,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:08,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5009 transitions. [2022-03-03 18:42:08,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:08,621 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:08,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:08,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable499 [2022-03-03 18:42:08,621 INFO L402 AbstractCegarLoop]: === Iteration 501 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:08,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:08,621 INFO L85 PathProgramCache]: Analyzing trace with hash 280308659, now seen corresponding path program 496 times [2022-03-03 18:42:08,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:08,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532803363] [2022-03-03 18:42:08,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:08,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:08,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:08,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532803363] [2022-03-03 18:42:08,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532803363] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:08,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:08,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:08,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026859945] [2022-03-03 18:42:08,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:08,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:08,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:08,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:08,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:08,738 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) [2022-03-03 18:42:08,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:08,864 INFO L93 Difference]: Finished difference Result 2555 states and 9290 transitions. [2022-03-03 18:42:08,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:08,865 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:08,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:08,870 INFO L225 Difference]: With dead ends: 2555 [2022-03-03 18:42:08,870 INFO L226 Difference]: Without dead ends: 2356 [2022-03-03 18:42:08,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:08,870 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 [2022-03-03 18:42:08,870 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] [2022-03-03 18:42:08,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2022-03-03 18:42:08,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 1270. [2022-03-03 18:42:08,896 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) [2022-03-03 18:42:08,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4953 transitions. [2022-03-03 18:42:08,899 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4953 transitions. Word has length 25 [2022-03-03 18:42:08,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:08,899 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4953 transitions. [2022-03-03 18:42:08,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:08,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4953 transitions. [2022-03-03 18:42:08,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:08,901 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:08,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:08,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable500 [2022-03-03 18:42:08,901 INFO L402 AbstractCegarLoop]: === Iteration 502 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:08,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:08,902 INFO L85 PathProgramCache]: Analyzing trace with hash -2080136269, now seen corresponding path program 497 times [2022-03-03 18:42:08,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:08,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874959684] [2022-03-03 18:42:08,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:08,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:09,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:09,019 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:09,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874959684] [2022-03-03 18:42:09,020 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874959684] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:09,020 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:09,020 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:09,020 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011519557] [2022-03-03 18:42:09,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:09,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:09,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:09,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:09,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:09,020 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) [2022-03-03 18:42:09,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:09,127 INFO L93 Difference]: Finished difference Result 2599 states and 9466 transitions. [2022-03-03 18:42:09,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:09,128 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 [2022-03-03 18:42:09,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:09,133 INFO L225 Difference]: With dead ends: 2599 [2022-03-03 18:42:09,133 INFO L226 Difference]: Without dead ends: 2412 [2022-03-03 18:42:09,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:09,133 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 108 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:09,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 144 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:09,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2022-03-03 18:42:09,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 1298. [2022-03-03 18:42:09,153 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) [2022-03-03 18:42:09,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5041 transitions. [2022-03-03 18:42:09,156 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5041 transitions. Word has length 25 [2022-03-03 18:42:09,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:09,156 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5041 transitions. [2022-03-03 18:42:09,156 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) [2022-03-03 18:42:09,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5041 transitions. [2022-03-03 18:42:09,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:09,158 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:09,158 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] [2022-03-03 18:42:09,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable501 [2022-03-03 18:42:09,158 INFO L402 AbstractCegarLoop]: === Iteration 503 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:09,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:09,159 INFO L85 PathProgramCache]: Analyzing trace with hash 171494033, now seen corresponding path program 498 times [2022-03-03 18:42:09,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:09,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394251694] [2022-03-03 18:42:09,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:09,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:09,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:09,277 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:09,277 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394251694] [2022-03-03 18:42:09,277 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394251694] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:09,277 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:09,277 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:09,277 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731032009] [2022-03-03 18:42:09,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:09,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:09,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:09,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:09,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:09,277 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) [2022-03-03 18:42:09,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:09,384 INFO L93 Difference]: Finished difference Result 2595 states and 9426 transitions. [2022-03-03 18:42:09,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:09,384 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:09,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:09,390 INFO L225 Difference]: With dead ends: 2595 [2022-03-03 18:42:09,390 INFO L226 Difference]: Without dead ends: 2376 [2022-03-03 18:42:09,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:09,390 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 106 mSDsluCounter, 161 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 [2022-03-03 18:42:09,390 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] [2022-03-03 18:42:09,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states. [2022-03-03 18:42:09,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 1262. [2022-03-03 18:42:09,410 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) [2022-03-03 18:42:09,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4929 transitions. [2022-03-03 18:42:09,412 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4929 transitions. Word has length 25 [2022-03-03 18:42:09,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:09,413 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4929 transitions. [2022-03-03 18:42:09,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:09,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4929 transitions. [2022-03-03 18:42:09,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:09,414 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:09,414 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] [2022-03-03 18:42:09,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable502 [2022-03-03 18:42:09,415 INFO L402 AbstractCegarLoop]: === Iteration 504 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:09,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:09,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1881069589, now seen corresponding path program 499 times [2022-03-03 18:42:09,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:09,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118276682] [2022-03-03 18:42:09,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:09,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:09,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:09,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:09,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118276682] [2022-03-03 18:42:09,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118276682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:09,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:09,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:09,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361266481] [2022-03-03 18:42:09,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:09,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:09,532 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:09,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:09,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:09,533 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) [2022-03-03 18:42:09,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:09,634 INFO L93 Difference]: Finished difference Result 2671 states and 9756 transitions. [2022-03-03 18:42:09,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:09,634 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:09,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:09,639 INFO L225 Difference]: With dead ends: 2671 [2022-03-03 18:42:09,640 INFO L226 Difference]: Without dead ends: 2482 [2022-03-03 18:42:09,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:09,640 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 [2022-03-03 18:42:09,640 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] [2022-03-03 18:42:09,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2482 states. [2022-03-03 18:42:09,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2482 to 1306. [2022-03-03 18:42:09,660 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) [2022-03-03 18:42:09,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5087 transitions. [2022-03-03 18:42:09,663 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5087 transitions. Word has length 25 [2022-03-03 18:42:09,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:09,663 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5087 transitions. [2022-03-03 18:42:09,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:09,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5087 transitions. [2022-03-03 18:42:09,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:09,665 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:09,665 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] [2022-03-03 18:42:09,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable503 [2022-03-03 18:42:09,665 INFO L402 AbstractCegarLoop]: === Iteration 505 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:09,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:09,665 INFO L85 PathProgramCache]: Analyzing trace with hash -162267405, now seen corresponding path program 500 times [2022-03-03 18:42:09,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:09,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123795918] [2022-03-03 18:42:09,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:09,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:09,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:09,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:09,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123795918] [2022-03-03 18:42:09,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123795918] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:09,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:09,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:09,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965053811] [2022-03-03 18:42:09,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:09,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:09,786 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:09,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:09,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:09,787 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) [2022-03-03 18:42:09,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:09,899 INFO L93 Difference]: Finished difference Result 2669 states and 9721 transitions. [2022-03-03 18:42:09,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:09,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:09,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:09,905 INFO L225 Difference]: With dead ends: 2669 [2022-03-03 18:42:09,905 INFO L226 Difference]: Without dead ends: 2452 [2022-03-03 18:42:09,905 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 [2022-03-03 18:42:09,905 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 109 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:09,905 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] [2022-03-03 18:42:09,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2022-03-03 18:42:09,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 1276. [2022-03-03 18:42:09,925 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) [2022-03-03 18:42:09,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 4980 transitions. [2022-03-03 18:42:09,927 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 4980 transitions. Word has length 25 [2022-03-03 18:42:09,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:09,927 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 4980 transitions. [2022-03-03 18:42:09,927 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) [2022-03-03 18:42:09,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 4980 transitions. [2022-03-03 18:42:09,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:09,929 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:09,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:09,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable504 [2022-03-03 18:42:09,929 INFO L402 AbstractCegarLoop]: === Iteration 506 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:09,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:09,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1034272627, now seen corresponding path program 501 times [2022-03-03 18:42:09,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:09,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424184642] [2022-03-03 18:42:09,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:09,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:10,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:10,043 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:10,043 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424184642] [2022-03-03 18:42:10,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424184642] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:10,043 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:10,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:10,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559791607] [2022-03-03 18:42:10,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:10,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:10,044 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:10,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:10,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:10,044 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) [2022-03-03 18:42:10,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:10,151 INFO L93 Difference]: Finished difference Result 2665 states and 9723 transitions. [2022-03-03 18:42:10,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:10,151 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:10,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:10,156 INFO L225 Difference]: With dead ends: 2665 [2022-03-03 18:42:10,156 INFO L226 Difference]: Without dead ends: 2476 [2022-03-03 18:42:10,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:10,157 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 102 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:10,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 151 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:10,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2022-03-03 18:42:10,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 1304. [2022-03-03 18:42:10,178 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) [2022-03-03 18:42:10,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 5068 transitions. [2022-03-03 18:42:10,181 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 5068 transitions. Word has length 25 [2022-03-03 18:42:10,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:10,181 INFO L470 AbstractCegarLoop]: Abstraction has 1304 states and 5068 transitions. [2022-03-03 18:42:10,181 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) [2022-03-03 18:42:10,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 5068 transitions. [2022-03-03 18:42:10,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:10,183 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:10,183 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] [2022-03-03 18:42:10,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable505 [2022-03-03 18:42:10,183 INFO L402 AbstractCegarLoop]: === Iteration 507 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:10,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:10,183 INFO L85 PathProgramCache]: Analyzing trace with hash -2068228237, now seen corresponding path program 502 times [2022-03-03 18:42:10,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:10,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729053069] [2022-03-03 18:42:10,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:10,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:10,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:10,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:10,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729053069] [2022-03-03 18:42:10,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729053069] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:10,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:10,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:10,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469465154] [2022-03-03 18:42:10,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:10,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:10,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:10,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:10,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:10,297 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) [2022-03-03 18:42:10,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:10,400 INFO L93 Difference]: Finished difference Result 2659 states and 9678 transitions. [2022-03-03 18:42:10,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:10,401 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:10,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:10,406 INFO L225 Difference]: With dead ends: 2659 [2022-03-03 18:42:10,406 INFO L226 Difference]: Without dead ends: 2448 [2022-03-03 18:42:10,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:10,406 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 [2022-03-03 18:42:10,406 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] [2022-03-03 18:42:10,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2448 states. [2022-03-03 18:42:10,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2448 to 1276. [2022-03-03 18:42:10,427 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) [2022-03-03 18:42:10,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 4966 transitions. [2022-03-03 18:42:10,430 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 4966 transitions. Word has length 25 [2022-03-03 18:42:10,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:10,430 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 4966 transitions. [2022-03-03 18:42:10,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:10,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 4966 transitions. [2022-03-03 18:42:10,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:10,432 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:10,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:10,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable506 [2022-03-03 18:42:10,432 INFO L402 AbstractCegarLoop]: === Iteration 508 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:10,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:10,432 INFO L85 PathProgramCache]: Analyzing trace with hash 2016620241, now seen corresponding path program 503 times [2022-03-03 18:42:10,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:10,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982628629] [2022-03-03 18:42:10,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:10,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:10,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:10,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:10,575 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:10,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982628629] [2022-03-03 18:42:10,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982628629] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:10,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:10,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:10,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239360201] [2022-03-03 18:42:10,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:10,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:10,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:10,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:10,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:10,576 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) [2022-03-03 18:42:10,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:10,702 INFO L93 Difference]: Finished difference Result 2661 states and 9699 transitions. [2022-03-03 18:42:10,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:10,703 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 [2022-03-03 18:42:10,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:10,710 INFO L225 Difference]: With dead ends: 2661 [2022-03-03 18:42:10,710 INFO L226 Difference]: Without dead ends: 2474 [2022-03-03 18:42:10,710 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 [2022-03-03 18:42:10,710 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:10,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 145 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:10,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-03-03 18:42:10,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 1304. [2022-03-03 18:42:10,740 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) [2022-03-03 18:42:10,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 5054 transitions. [2022-03-03 18:42:10,744 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 5054 transitions. Word has length 25 [2022-03-03 18:42:10,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:10,744 INFO L470 AbstractCegarLoop]: Abstraction has 1304 states and 5054 transitions. [2022-03-03 18:42:10,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:10,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 5054 transitions. [2022-03-03 18:42:10,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:10,747 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:10,747 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:10,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable507 [2022-03-03 18:42:10,747 INFO L402 AbstractCegarLoop]: === Iteration 509 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:10,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:10,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1197284429, now seen corresponding path program 504 times [2022-03-03 18:42:10,747 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:10,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984910150] [2022-03-03 18:42:10,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:10,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:10,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:10,892 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:10,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984910150] [2022-03-03 18:42:10,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984910150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:10,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:10,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:10,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008323769] [2022-03-03 18:42:10,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:10,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:10,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:10,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:10,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:10,893 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) [2022-03-03 18:42:11,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:11,001 INFO L93 Difference]: Finished difference Result 2657 states and 9659 transitions. [2022-03-03 18:42:11,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:11,001 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 [2022-03-03 18:42:11,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:11,007 INFO L225 Difference]: With dead ends: 2657 [2022-03-03 18:42:11,007 INFO L226 Difference]: Without dead ends: 2428 [2022-03-03 18:42:11,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:11,007 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 115 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:11,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 135 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:11,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2022-03-03 18:42:11,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 1258. [2022-03-03 18:42:11,028 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) [2022-03-03 18:42:11,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4919 transitions. [2022-03-03 18:42:11,031 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4919 transitions. Word has length 25 [2022-03-03 18:42:11,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:11,031 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4919 transitions. [2022-03-03 18:42:11,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:11,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4919 transitions. [2022-03-03 18:42:11,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:11,033 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:11,033 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] [2022-03-03 18:42:11,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable508 [2022-03-03 18:42:11,033 INFO L402 AbstractCegarLoop]: === Iteration 510 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:11,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:11,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1335503151, now seen corresponding path program 505 times [2022-03-03 18:42:11,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:11,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168020398] [2022-03-03 18:42:11,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:11,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:11,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:11,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:11,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168020398] [2022-03-03 18:42:11,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168020398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:11,152 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:11,152 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:11,152 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460493493] [2022-03-03 18:42:11,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:11,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:11,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:11,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:11,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:11,153 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) [2022-03-03 18:42:11,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:11,255 INFO L93 Difference]: Finished difference Result 2515 states and 9144 transitions. [2022-03-03 18:42:11,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:11,256 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 [2022-03-03 18:42:11,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:11,261 INFO L225 Difference]: With dead ends: 2515 [2022-03-03 18:42:11,261 INFO L226 Difference]: Without dead ends: 2356 [2022-03-03 18:42:11,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:11,261 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:11,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 165 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:11,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2022-03-03 18:42:11,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 1274. [2022-03-03 18:42:11,281 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) [2022-03-03 18:42:11,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4967 transitions. [2022-03-03 18:42:11,283 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4967 transitions. Word has length 25 [2022-03-03 18:42:11,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:11,283 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4967 transitions. [2022-03-03 18:42:11,283 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) [2022-03-03 18:42:11,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4967 transitions. [2022-03-03 18:42:11,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:11,285 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:11,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:11,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable509 [2022-03-03 18:42:11,285 INFO L402 AbstractCegarLoop]: === Iteration 511 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:11,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:11,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1369529395, now seen corresponding path program 506 times [2022-03-03 18:42:11,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:11,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770906976] [2022-03-03 18:42:11,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:11,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:11,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:11,405 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:11,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770906976] [2022-03-03 18:42:11,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770906976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:11,406 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:11,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:11,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456349226] [2022-03-03 18:42:11,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:11,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:11,406 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:11,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:11,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:11,406 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) [2022-03-03 18:42:11,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:11,514 INFO L93 Difference]: Finished difference Result 2545 states and 9237 transitions. [2022-03-03 18:42:11,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:11,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:11,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:11,520 INFO L225 Difference]: With dead ends: 2545 [2022-03-03 18:42:11,520 INFO L226 Difference]: Without dead ends: 2340 [2022-03-03 18:42:11,520 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 [2022-03-03 18:42:11,520 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 [2022-03-03 18:42:11,520 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] [2022-03-03 18:42:11,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2340 states. [2022-03-03 18:42:11,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2340 to 1258. [2022-03-03 18:42:11,540 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) [2022-03-03 18:42:11,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4911 transitions. [2022-03-03 18:42:11,543 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4911 transitions. Word has length 25 [2022-03-03 18:42:11,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:11,543 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4911 transitions. [2022-03-03 18:42:11,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:11,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4911 transitions. [2022-03-03 18:42:11,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:11,545 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:11,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:11,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable510 [2022-03-03 18:42:11,545 INFO L402 AbstractCegarLoop]: === Iteration 512 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:11,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:11,546 INFO L85 PathProgramCache]: Analyzing trace with hash -254440525, now seen corresponding path program 507 times [2022-03-03 18:42:11,546 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:11,546 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882850718] [2022-03-03 18:42:11,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:11,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:11,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:11,670 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:11,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882850718] [2022-03-03 18:42:11,670 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882850718] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:11,670 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:11,670 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:11,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067166788] [2022-03-03 18:42:11,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:11,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:11,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:11,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:11,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:11,672 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) [2022-03-03 18:42:11,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:11,777 INFO L93 Difference]: Finished difference Result 2513 states and 9131 transitions. [2022-03-03 18:42:11,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:11,777 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:11,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:11,782 INFO L225 Difference]: With dead ends: 2513 [2022-03-03 18:42:11,782 INFO L226 Difference]: Without dead ends: 2354 [2022-03-03 18:42:11,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:11,783 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 [2022-03-03 18:42:11,783 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] [2022-03-03 18:42:11,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2022-03-03 18:42:11,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 1274. [2022-03-03 18:42:11,817 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) [2022-03-03 18:42:11,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4959 transitions. [2022-03-03 18:42:11,821 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4959 transitions. Word has length 25 [2022-03-03 18:42:11,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:11,821 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4959 transitions. [2022-03-03 18:42:11,821 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) [2022-03-03 18:42:11,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4959 transitions. [2022-03-03 18:42:11,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:11,823 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:11,823 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] [2022-03-03 18:42:11,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable511 [2022-03-03 18:42:11,823 INFO L402 AbstractCegarLoop]: === Iteration 513 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:11,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:11,824 INFO L85 PathProgramCache]: Analyzing trace with hash 753857459, now seen corresponding path program 508 times [2022-03-03 18:42:11,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:11,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416014867] [2022-03-03 18:42:11,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:11,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:11,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:11,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:11,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416014867] [2022-03-03 18:42:11,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416014867] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:11,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:11,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:11,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415873062] [2022-03-03 18:42:11,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:11,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:11,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:11,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:11,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:11,942 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) [2022-03-03 18:42:12,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:12,048 INFO L93 Difference]: Finished difference Result 2541 states and 9219 transitions. [2022-03-03 18:42:12,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:12,048 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:12,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:12,054 INFO L225 Difference]: With dead ends: 2541 [2022-03-03 18:42:12,054 INFO L226 Difference]: Without dead ends: 2338 [2022-03-03 18:42:12,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:12,054 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 [2022-03-03 18:42:12,054 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] [2022-03-03 18:42:12,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2338 states. [2022-03-03 18:42:12,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2338 to 1258. [2022-03-03 18:42:12,077 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) [2022-03-03 18:42:12,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4903 transitions. [2022-03-03 18:42:12,081 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4903 transitions. Word has length 25 [2022-03-03 18:42:12,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:12,081 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4903 transitions. [2022-03-03 18:42:12,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:12,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4903 transitions. [2022-03-03 18:42:12,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:12,083 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:12,083 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] [2022-03-03 18:42:12,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable512 [2022-03-03 18:42:12,083 INFO L402 AbstractCegarLoop]: === Iteration 514 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:12,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:12,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1162721429, now seen corresponding path program 509 times [2022-03-03 18:42:12,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:12,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813402979] [2022-03-03 18:42:12,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:12,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:12,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:12,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:12,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813402979] [2022-03-03 18:42:12,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813402979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:12,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:12,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:12,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224244746] [2022-03-03 18:42:12,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:12,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:12,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:12,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:12,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:12,204 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) [2022-03-03 18:42:12,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:12,313 INFO L93 Difference]: Finished difference Result 2587 states and 9400 transitions. [2022-03-03 18:42:12,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:12,314 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:12,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:12,320 INFO L225 Difference]: With dead ends: 2587 [2022-03-03 18:42:12,320 INFO L226 Difference]: Without dead ends: 2398 [2022-03-03 18:42:12,320 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 [2022-03-03 18:42:12,320 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 110 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:12,320 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] [2022-03-03 18:42:12,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2022-03-03 18:42:12,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 1288. [2022-03-03 18:42:12,344 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) [2022-03-03 18:42:12,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 4996 transitions. [2022-03-03 18:42:12,346 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 4996 transitions. Word has length 25 [2022-03-03 18:42:12,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:12,346 INFO L470 AbstractCegarLoop]: Abstraction has 1288 states and 4996 transitions. [2022-03-03 18:42:12,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:12,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 4996 transitions. [2022-03-03 18:42:12,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:12,349 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:12,349 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] [2022-03-03 18:42:12,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable513 [2022-03-03 18:42:12,349 INFO L402 AbstractCegarLoop]: === Iteration 515 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:12,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:12,349 INFO L85 PathProgramCache]: Analyzing trace with hash -880615565, now seen corresponding path program 510 times [2022-03-03 18:42:12,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:12,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739727474] [2022-03-03 18:42:12,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:12,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:12,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:12,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:12,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739727474] [2022-03-03 18:42:12,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739727474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:12,469 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:12,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:12,469 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494649436] [2022-03-03 18:42:12,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:12,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:12,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:12,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:12,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:12,470 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) [2022-03-03 18:42:12,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:12,570 INFO L93 Difference]: Finished difference Result 2585 states and 9365 transitions. [2022-03-03 18:42:12,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:12,571 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 [2022-03-03 18:42:12,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:12,576 INFO L225 Difference]: With dead ends: 2585 [2022-03-03 18:42:12,576 INFO L226 Difference]: Without dead ends: 2360 [2022-03-03 18:42:12,576 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 [2022-03-03 18:42:12,576 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 120 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:12,576 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] [2022-03-03 18:42:12,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2022-03-03 18:42:12,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 1250. [2022-03-03 18:42:12,594 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) [2022-03-03 18:42:12,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 4879 transitions. [2022-03-03 18:42:12,597 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 4879 transitions. Word has length 25 [2022-03-03 18:42:12,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:12,597 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 4879 transitions. [2022-03-03 18:42:12,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:12,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 4879 transitions. [2022-03-03 18:42:12,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:12,599 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:12,599 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] [2022-03-03 18:42:12,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable514 [2022-03-03 18:42:12,599 INFO L402 AbstractCegarLoop]: === Iteration 516 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:12,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:12,599 INFO L85 PathProgramCache]: Analyzing trace with hash -242532655, now seen corresponding path program 511 times [2022-03-03 18:42:12,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:12,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197308925] [2022-03-03 18:42:12,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:12,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:12,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:12,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:12,718 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197308925] [2022-03-03 18:42:12,718 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197308925] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:12,718 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:12,718 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:12,718 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533303526] [2022-03-03 18:42:12,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:12,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:12,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:12,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:12,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:12,718 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) [2022-03-03 18:42:12,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:12,824 INFO L93 Difference]: Finished difference Result 2481 states and 9013 transitions. [2022-03-03 18:42:12,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:12,824 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:12,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:12,829 INFO L225 Difference]: With dead ends: 2481 [2022-03-03 18:42:12,829 INFO L226 Difference]: Without dead ends: 2322 [2022-03-03 18:42:12,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:12,829 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 [2022-03-03 18:42:12,829 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] [2022-03-03 18:42:12,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2322 states. [2022-03-03 18:42:12,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2322 to 1274. [2022-03-03 18:42:12,848 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) [2022-03-03 18:42:12,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4963 transitions. [2022-03-03 18:42:12,851 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4963 transitions. Word has length 25 [2022-03-03 18:42:12,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:12,851 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4963 transitions. [2022-03-03 18:42:12,851 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) [2022-03-03 18:42:12,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4963 transitions. [2022-03-03 18:42:12,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:12,853 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:12,853 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] [2022-03-03 18:42:12,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable515 [2022-03-03 18:42:12,853 INFO L402 AbstractCegarLoop]: === Iteration 517 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:12,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:12,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1832467405, now seen corresponding path program 512 times [2022-03-03 18:42:12,853 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:12,853 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112586567] [2022-03-03 18:42:12,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:12,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:12,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:12,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:12,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112586567] [2022-03-03 18:42:12,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112586567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:12,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:12,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:12,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252127154] [2022-03-03 18:42:12,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:12,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:12,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:12,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:12,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:12,982 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) [2022-03-03 18:42:13,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:13,099 INFO L93 Difference]: Finished difference Result 2511 states and 9106 transitions. [2022-03-03 18:42:13,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:13,100 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:13,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:13,104 INFO L225 Difference]: With dead ends: 2511 [2022-03-03 18:42:13,105 INFO L226 Difference]: Without dead ends: 2306 [2022-03-03 18:42:13,105 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 [2022-03-03 18:42:13,105 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 [2022-03-03 18:42:13,105 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] [2022-03-03 18:42:13,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2022-03-03 18:42:13,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 1258. [2022-03-03 18:42:13,124 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) [2022-03-03 18:42:13,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4907 transitions. [2022-03-03 18:42:13,126 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4907 transitions. Word has length 25 [2022-03-03 18:42:13,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:13,126 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4907 transitions. [2022-03-03 18:42:13,126 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) [2022-03-03 18:42:13,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4907 transitions. [2022-03-03 18:42:13,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:13,128 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:13,128 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] [2022-03-03 18:42:13,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable516 [2022-03-03 18:42:13,128 INFO L402 AbstractCegarLoop]: === Iteration 518 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:13,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:13,129 INFO L85 PathProgramCache]: Analyzing trace with hash -192964911, now seen corresponding path program 513 times [2022-03-03 18:42:13,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:13,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733661374] [2022-03-03 18:42:13,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:13,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:13,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:13,251 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:13,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733661374] [2022-03-03 18:42:13,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733661374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:13,251 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:13,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:13,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525105489] [2022-03-03 18:42:13,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:13,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:13,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:13,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:13,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:13,252 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) [2022-03-03 18:42:13,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:13,348 INFO L93 Difference]: Finished difference Result 2435 states and 8848 transitions. [2022-03-03 18:42:13,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:13,349 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 [2022-03-03 18:42:13,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:13,353 INFO L225 Difference]: With dead ends: 2435 [2022-03-03 18:42:13,353 INFO L226 Difference]: Without dead ends: 2276 [2022-03-03 18:42:13,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:13,354 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 112 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:13,354 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] [2022-03-03 18:42:13,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2022-03-03 18:42:13,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 1274. [2022-03-03 18:42:13,372 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) [2022-03-03 18:42:13,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4955 transitions. [2022-03-03 18:42:13,375 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4955 transitions. Word has length 25 [2022-03-03 18:42:13,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:13,375 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4955 transitions. [2022-03-03 18:42:13,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:13,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4955 transitions. [2022-03-03 18:42:13,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:13,377 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:13,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:13,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517 [2022-03-03 18:42:13,377 INFO L402 AbstractCegarLoop]: === Iteration 519 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:13,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:13,377 INFO L85 PathProgramCache]: Analyzing trace with hash -2135236911, now seen corresponding path program 514 times [2022-03-03 18:42:13,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:13,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305989759] [2022-03-03 18:42:13,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:13,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:13,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:13,496 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:13,496 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305989759] [2022-03-03 18:42:13,496 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305989759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:13,496 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:13,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:13,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580839534] [2022-03-03 18:42:13,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:13,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:13,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:13,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:13,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:13,497 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) [2022-03-03 18:42:13,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:13,603 INFO L93 Difference]: Finished difference Result 2323 states and 8511 transitions. [2022-03-03 18:42:13,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:13,604 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 [2022-03-03 18:42:13,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:13,608 INFO L225 Difference]: With dead ends: 2323 [2022-03-03 18:42:13,608 INFO L226 Difference]: Without dead ends: 2132 [2022-03-03 18:42:13,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:13,609 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 [2022-03-03 18:42:13,609 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] [2022-03-03 18:42:13,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2022-03-03 18:42:13,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 1258. [2022-03-03 18:42:13,627 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) [2022-03-03 18:42:13,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4899 transitions. [2022-03-03 18:42:13,630 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4899 transitions. Word has length 25 [2022-03-03 18:42:13,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:13,630 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4899 transitions. [2022-03-03 18:42:13,630 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) [2022-03-03 18:42:13,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4899 transitions. [2022-03-03 18:42:13,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:13,632 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:13,632 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] [2022-03-03 18:42:13,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable518 [2022-03-03 18:42:13,632 INFO L402 AbstractCegarLoop]: === Iteration 520 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:13,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:13,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1224197043, now seen corresponding path program 515 times [2022-03-03 18:42:13,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:13,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439861935] [2022-03-03 18:42:13,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:13,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:13,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:13,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:13,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439861935] [2022-03-03 18:42:13,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439861935] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:13,760 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:13,760 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:13,760 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663085311] [2022-03-03 18:42:13,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:13,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:13,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:13,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:13,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:13,761 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) [2022-03-03 18:42:13,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:13,873 INFO L93 Difference]: Finished difference Result 2473 states and 8985 transitions. [2022-03-03 18:42:13,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:13,873 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 [2022-03-03 18:42:13,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:13,878 INFO L225 Difference]: With dead ends: 2473 [2022-03-03 18:42:13,878 INFO L226 Difference]: Without dead ends: 2284 [2022-03-03 18:42:13,878 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 [2022-03-03 18:42:13,878 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 [2022-03-03 18:42:13,878 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] [2022-03-03 18:42:13,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2284 states. [2022-03-03 18:42:13,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2284 to 1282. [2022-03-03 18:42:13,897 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) [2022-03-03 18:42:13,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 4975 transitions. [2022-03-03 18:42:13,899 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 4975 transitions. Word has length 25 [2022-03-03 18:42:13,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:13,900 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 4975 transitions. [2022-03-03 18:42:13,900 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) [2022-03-03 18:42:13,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 4975 transitions. [2022-03-03 18:42:13,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:13,901 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:13,902 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] [2022-03-03 18:42:13,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable519 [2022-03-03 18:42:13,902 INFO L402 AbstractCegarLoop]: === Iteration 521 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:13,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:13,902 INFO L85 PathProgramCache]: Analyzing trace with hash 483244945, now seen corresponding path program 516 times [2022-03-03 18:42:13,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:13,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497552595] [2022-03-03 18:42:13,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:13,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:14,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:14,018 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:14,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497552595] [2022-03-03 18:42:14,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497552595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:14,018 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:14,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:14,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910866719] [2022-03-03 18:42:14,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:14,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:14,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:14,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:14,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:14,018 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) [2022-03-03 18:42:14,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:14,119 INFO L93 Difference]: Finished difference Result 2331 states and 8531 transitions. [2022-03-03 18:42:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:14,119 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:14,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:14,123 INFO L225 Difference]: With dead ends: 2331 [2022-03-03 18:42:14,124 INFO L226 Difference]: Without dead ends: 2124 [2022-03-03 18:42:14,124 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 [2022-03-03 18:42:14,124 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 110 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:14,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 140 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:14,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2022-03-03 18:42:14,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 1250. [2022-03-03 18:42:14,141 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) [2022-03-03 18:42:14,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 4875 transitions. [2022-03-03 18:42:14,144 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 4875 transitions. Word has length 25 [2022-03-03 18:42:14,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:14,144 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 4875 transitions. [2022-03-03 18:42:14,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:14,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 4875 transitions. [2022-03-03 18:42:14,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:14,146 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:14,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:14,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable520 [2022-03-03 18:42:14,146 INFO L402 AbstractCegarLoop]: === Iteration 522 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:14,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:14,146 INFO L85 PathProgramCache]: Analyzing trace with hash 145472307, now seen corresponding path program 517 times [2022-03-03 18:42:14,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:14,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655684207] [2022-03-03 18:42:14,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:14,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:14,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:14,264 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:14,264 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655684207] [2022-03-03 18:42:14,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655684207] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:14,264 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:14,264 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:14,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032027543] [2022-03-03 18:42:14,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:14,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:14,264 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:14,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:14,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:14,265 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) [2022-03-03 18:42:14,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:14,358 INFO L93 Difference]: Finished difference Result 2477 states and 8999 transitions. [2022-03-03 18:42:14,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:14,358 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:14,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:14,363 INFO L225 Difference]: With dead ends: 2477 [2022-03-03 18:42:14,363 INFO L226 Difference]: Without dead ends: 2318 [2022-03-03 18:42:14,363 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 [2022-03-03 18:42:14,364 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:14,364 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] [2022-03-03 18:42:14,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2022-03-03 18:42:14,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1274. [2022-03-03 18:42:14,382 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) [2022-03-03 18:42:14,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4959 transitions. [2022-03-03 18:42:14,385 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4959 transitions. Word has length 25 [2022-03-03 18:42:14,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:14,385 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4959 transitions. [2022-03-03 18:42:14,385 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) [2022-03-03 18:42:14,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4959 transitions. [2022-03-03 18:42:14,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:14,387 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:14,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:14,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable521 [2022-03-03 18:42:14,387 INFO L402 AbstractCegarLoop]: === Iteration 523 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:14,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:14,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1153770291, now seen corresponding path program 518 times [2022-03-03 18:42:14,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:14,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127594051] [2022-03-03 18:42:14,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:14,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:14,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:14,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:14,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127594051] [2022-03-03 18:42:14,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127594051] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:14,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:14,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:14,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483995935] [2022-03-03 18:42:14,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:14,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:14,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:14,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:14,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:14,517 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) [2022-03-03 18:42:14,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:14,618 INFO L93 Difference]: Finished difference Result 2505 states and 9087 transitions. [2022-03-03 18:42:14,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:14,618 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 [2022-03-03 18:42:14,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:14,623 INFO L225 Difference]: With dead ends: 2505 [2022-03-03 18:42:14,623 INFO L226 Difference]: Without dead ends: 2302 [2022-03-03 18:42:14,623 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 [2022-03-03 18:42:14,623 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 121 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:14,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 140 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:14,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2022-03-03 18:42:14,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 1258. [2022-03-03 18:42:14,642 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) [2022-03-03 18:42:14,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4903 transitions. [2022-03-03 18:42:14,644 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4903 transitions. Word has length 25 [2022-03-03 18:42:14,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:14,644 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4903 transitions. [2022-03-03 18:42:14,644 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) [2022-03-03 18:42:14,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4903 transitions. [2022-03-03 18:42:14,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:14,646 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:14,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:14,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable522 [2022-03-03 18:42:14,646 INFO L402 AbstractCegarLoop]: === Iteration 524 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:14,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:14,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1970607343, now seen corresponding path program 519 times [2022-03-03 18:42:14,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:14,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630462293] [2022-03-03 18:42:14,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:14,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:14,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:14,765 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:14,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630462293] [2022-03-03 18:42:14,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630462293] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:14,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:14,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:14,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810188227] [2022-03-03 18:42:14,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:14,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:14,766 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:14,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:14,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:14,766 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) [2022-03-03 18:42:14,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:14,866 INFO L93 Difference]: Finished difference Result 2433 states and 8839 transitions. [2022-03-03 18:42:14,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:14,866 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 [2022-03-03 18:42:14,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:14,871 INFO L225 Difference]: With dead ends: 2433 [2022-03-03 18:42:14,871 INFO L226 Difference]: Without dead ends: 2274 [2022-03-03 18:42:14,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:14,871 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 105 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:14,871 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] [2022-03-03 18:42:14,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2022-03-03 18:42:14,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1274. [2022-03-03 18:42:14,890 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) [2022-03-03 18:42:14,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4951 transitions. [2022-03-03 18:42:14,893 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4951 transitions. Word has length 25 [2022-03-03 18:42:14,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:14,893 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4951 transitions. [2022-03-03 18:42:14,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:14,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4951 transitions. [2022-03-03 18:42:14,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:14,895 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:14,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:14,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable523 [2022-03-03 18:42:14,895 INFO L402 AbstractCegarLoop]: === Iteration 525 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:14,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:14,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1678828339, now seen corresponding path program 520 times [2022-03-03 18:42:14,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:14,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278494520] [2022-03-03 18:42:14,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:14,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:15,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:15,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:15,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278494520] [2022-03-03 18:42:15,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278494520] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:15,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:15,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:15,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293377630] [2022-03-03 18:42:15,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:15,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:15,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:15,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:15,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:15,015 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) [2022-03-03 18:42:15,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:15,122 INFO L93 Difference]: Finished difference Result 2321 states and 8502 transitions. [2022-03-03 18:42:15,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:15,122 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 [2022-03-03 18:42:15,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:15,127 INFO L225 Difference]: With dead ends: 2321 [2022-03-03 18:42:15,127 INFO L226 Difference]: Without dead ends: 2130 [2022-03-03 18:42:15,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:15,127 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 93 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:15,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 150 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:15,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2022-03-03 18:42:15,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 1258. [2022-03-03 18:42:15,148 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) [2022-03-03 18:42:15,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4895 transitions. [2022-03-03 18:42:15,151 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4895 transitions. Word has length 25 [2022-03-03 18:42:15,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:15,151 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4895 transitions. [2022-03-03 18:42:15,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:15,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4895 transitions. [2022-03-03 18:42:15,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:15,153 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:15,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:15,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable524 [2022-03-03 18:42:15,153 INFO L402 AbstractCegarLoop]: === Iteration 526 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:15,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:15,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1353815245, now seen corresponding path program 521 times [2022-03-03 18:42:15,153 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:15,153 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232043140] [2022-03-03 18:42:15,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:15,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:15,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:15,277 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:15,277 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232043140] [2022-03-03 18:42:15,277 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232043140] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:15,277 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:15,277 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:15,277 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703677740] [2022-03-03 18:42:15,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:15,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:15,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:15,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:15,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:15,278 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) [2022-03-03 18:42:15,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:15,391 INFO L93 Difference]: Finished difference Result 2469 states and 8971 transitions. [2022-03-03 18:42:15,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:15,391 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 [2022-03-03 18:42:15,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:15,397 INFO L225 Difference]: With dead ends: 2469 [2022-03-03 18:42:15,397 INFO L226 Difference]: Without dead ends: 2282 [2022-03-03 18:42:15,397 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 [2022-03-03 18:42:15,397 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 99 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:15,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 158 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:15,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2022-03-03 18:42:15,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 1282. [2022-03-03 18:42:15,420 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) [2022-03-03 18:42:15,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 4971 transitions. [2022-03-03 18:42:15,423 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 4971 transitions. Word has length 25 [2022-03-03 18:42:15,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:15,423 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 4971 transitions. [2022-03-03 18:42:15,423 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) [2022-03-03 18:42:15,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 4971 transitions. [2022-03-03 18:42:15,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:15,425 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:15,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:15,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable525 [2022-03-03 18:42:15,425 INFO L402 AbstractCegarLoop]: === Iteration 527 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:15,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:15,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1549007505, now seen corresponding path program 522 times [2022-03-03 18:42:15,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:15,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184366161] [2022-03-03 18:42:15,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:15,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:15,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:15,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:15,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184366161] [2022-03-03 18:42:15,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184366161] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:15,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:15,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:15,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815752141] [2022-03-03 18:42:15,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:15,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:15,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:15,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:15,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:15,545 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) [2022-03-03 18:42:15,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:15,660 INFO L93 Difference]: Finished difference Result 2329 states and 8522 transitions. [2022-03-03 18:42:15,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:15,660 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:15,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:15,664 INFO L225 Difference]: With dead ends: 2329 [2022-03-03 18:42:15,664 INFO L226 Difference]: Without dead ends: 2122 [2022-03-03 18:42:15,664 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 [2022-03-03 18:42:15,664 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 94 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:15,664 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] [2022-03-03 18:42:15,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2022-03-03 18:42:15,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 1250. [2022-03-03 18:42:15,694 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) [2022-03-03 18:42:15,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 4871 transitions. [2022-03-03 18:42:15,697 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 4871 transitions. Word has length 25 [2022-03-03 18:42:15,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:15,697 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 4871 transitions. [2022-03-03 18:42:15,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:15,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 4871 transitions. [2022-03-03 18:42:15,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:15,698 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:15,698 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] [2022-03-03 18:42:15,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable526 [2022-03-03 18:42:15,699 INFO L402 AbstractCegarLoop]: === Iteration 528 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:15,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:15,699 INFO L85 PathProgramCache]: Analyzing trace with hash 869576597, now seen corresponding path program 523 times [2022-03-03 18:42:15,699 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:15,699 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499585045] [2022-03-03 18:42:15,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:15,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:15,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:15,812 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:15,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499585045] [2022-03-03 18:42:15,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499585045] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:15,812 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:15,812 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:15,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645941285] [2022-03-03 18:42:15,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:15,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:15,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:15,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:15,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:15,813 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) [2022-03-03 18:42:15,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:15,916 INFO L93 Difference]: Finished difference Result 2593 states and 9437 transitions. [2022-03-03 18:42:15,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:15,916 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:15,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:15,921 INFO L225 Difference]: With dead ends: 2593 [2022-03-03 18:42:15,921 INFO L226 Difference]: Without dead ends: 2404 [2022-03-03 18:42:15,921 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 [2022-03-03 18:42:15,921 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 114 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:15,921 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] [2022-03-03 18:42:15,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states. [2022-03-03 18:42:15,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 1292. [2022-03-03 18:42:15,940 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) [2022-03-03 18:42:15,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 5020 transitions. [2022-03-03 18:42:15,943 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 5020 transitions. Word has length 25 [2022-03-03 18:42:15,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:15,943 INFO L470 AbstractCegarLoop]: Abstraction has 1292 states and 5020 transitions. [2022-03-03 18:42:15,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:15,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 5020 transitions. [2022-03-03 18:42:15,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:15,945 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:15,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:15,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable527 [2022-03-03 18:42:15,945 INFO L402 AbstractCegarLoop]: === Iteration 529 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:15,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:15,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1173760397, now seen corresponding path program 524 times [2022-03-03 18:42:15,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:15,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951287275] [2022-03-03 18:42:15,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:15,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:16,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:16,060 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:16,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951287275] [2022-03-03 18:42:16,060 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951287275] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:16,060 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:16,060 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:16,060 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206258248] [2022-03-03 18:42:16,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:16,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:16,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:16,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:16,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:16,060 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) [2022-03-03 18:42:16,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:16,165 INFO L93 Difference]: Finished difference Result 2591 states and 9402 transitions. [2022-03-03 18:42:16,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:16,165 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 [2022-03-03 18:42:16,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:16,170 INFO L225 Difference]: With dead ends: 2591 [2022-03-03 18:42:16,170 INFO L226 Difference]: Without dead ends: 2374 [2022-03-03 18:42:16,170 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 [2022-03-03 18:42:16,170 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 104 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:16,170 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] [2022-03-03 18:42:16,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2022-03-03 18:42:16,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 1262. [2022-03-03 18:42:16,189 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) [2022-03-03 18:42:16,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4915 transitions. [2022-03-03 18:42:16,191 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4915 transitions. Word has length 25 [2022-03-03 18:42:16,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:16,192 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4915 transitions. [2022-03-03 18:42:16,192 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) [2022-03-03 18:42:16,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4915 transitions. [2022-03-03 18:42:16,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:16,193 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:16,193 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] [2022-03-03 18:42:16,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable528 [2022-03-03 18:42:16,193 INFO L402 AbstractCegarLoop]: === Iteration 530 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:16,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:16,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1246503053, now seen corresponding path program 525 times [2022-03-03 18:42:16,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:16,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573119197] [2022-03-03 18:42:16,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:16,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:16,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:16,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:16,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573119197] [2022-03-03 18:42:16,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573119197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:16,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:16,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:16,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710592849] [2022-03-03 18:42:16,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:16,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:16,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:16,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:16,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:16,309 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) [2022-03-03 18:42:16,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:16,410 INFO L93 Difference]: Finished difference Result 2513 states and 9141 transitions. [2022-03-03 18:42:16,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:16,410 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:16,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:16,415 INFO L225 Difference]: With dead ends: 2513 [2022-03-03 18:42:16,415 INFO L226 Difference]: Without dead ends: 2324 [2022-03-03 18:42:16,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:16,415 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:16,416 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] [2022-03-03 18:42:16,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2324 states. [2022-03-03 18:42:16,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2324 to 1286. [2022-03-03 18:42:16,434 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) [2022-03-03 18:42:16,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 4991 transitions. [2022-03-03 18:42:16,437 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 4991 transitions. Word has length 25 [2022-03-03 18:42:16,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:16,437 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 4991 transitions. [2022-03-03 18:42:16,437 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) [2022-03-03 18:42:16,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 4991 transitions. [2022-03-03 18:42:16,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:16,438 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:16,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:16,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable529 [2022-03-03 18:42:16,439 INFO L402 AbstractCegarLoop]: === Iteration 531 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:16,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:16,439 INFO L85 PathProgramCache]: Analyzing trace with hash -690714765, now seen corresponding path program 526 times [2022-03-03 18:42:16,439 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:16,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407813536] [2022-03-03 18:42:16,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:16,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:16,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:16,554 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:16,554 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407813536] [2022-03-03 18:42:16,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407813536] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:16,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:16,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:16,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507526909] [2022-03-03 18:42:16,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:16,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:16,554 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:16,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:16,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:16,554 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) [2022-03-03 18:42:16,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:16,652 INFO L93 Difference]: Finished difference Result 2371 states and 8687 transitions. [2022-03-03 18:42:16,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:16,652 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 [2022-03-03 18:42:16,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:16,657 INFO L225 Difference]: With dead ends: 2371 [2022-03-03 18:42:16,657 INFO L226 Difference]: Without dead ends: 2172 [2022-03-03 18:42:16,657 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 [2022-03-03 18:42:16,657 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 [2022-03-03 18:42:16,657 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] [2022-03-03 18:42:16,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2022-03-03 18:42:16,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 1262. [2022-03-03 18:42:16,675 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) [2022-03-03 18:42:16,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4903 transitions. [2022-03-03 18:42:16,678 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4903 transitions. Word has length 25 [2022-03-03 18:42:16,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:16,678 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4903 transitions. [2022-03-03 18:42:16,678 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) [2022-03-03 18:42:16,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4903 transitions. [2022-03-03 18:42:16,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:16,680 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:16,680 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] [2022-03-03 18:42:16,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable530 [2022-03-03 18:42:16,680 INFO L402 AbstractCegarLoop]: === Iteration 532 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:16,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:16,680 INFO L85 PathProgramCache]: Analyzing trace with hash -264155439, now seen corresponding path program 527 times [2022-03-03 18:42:16,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:16,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223773164] [2022-03-03 18:42:16,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:16,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:16,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:16,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:16,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223773164] [2022-03-03 18:42:16,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223773164] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:16,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:16,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:16,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922461383] [2022-03-03 18:42:16,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:16,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:16,796 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:16,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:16,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:16,796 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) [2022-03-03 18:42:16,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:16,908 INFO L93 Difference]: Finished difference Result 2511 states and 9124 transitions. [2022-03-03 18:42:16,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:16,909 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 [2022-03-03 18:42:16,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:16,914 INFO L225 Difference]: With dead ends: 2511 [2022-03-03 18:42:16,914 INFO L226 Difference]: Without dead ends: 2324 [2022-03-03 18:42:16,914 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 [2022-03-03 18:42:16,914 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 [2022-03-03 18:42:16,914 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] [2022-03-03 18:42:16,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2324 states. [2022-03-03 18:42:16,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2324 to 1286. [2022-03-03 18:42:16,935 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) [2022-03-03 18:42:16,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 4979 transitions. [2022-03-03 18:42:16,938 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 4979 transitions. Word has length 25 [2022-03-03 18:42:16,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:16,938 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 4979 transitions. [2022-03-03 18:42:16,938 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) [2022-03-03 18:42:16,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 4979 transitions. [2022-03-03 18:42:16,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:16,940 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:16,940 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] [2022-03-03 18:42:16,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable531 [2022-03-03 18:42:16,940 INFO L402 AbstractCegarLoop]: === Iteration 533 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:16,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:16,940 INFO L85 PathProgramCache]: Analyzing trace with hash -470963405, now seen corresponding path program 528 times [2022-03-03 18:42:16,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:16,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374409684] [2022-03-03 18:42:16,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:16,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:17,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:17,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:17,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374409684] [2022-03-03 18:42:17,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374409684] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:17,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:17,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:17,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716955776] [2022-03-03 18:42:17,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:17,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:17,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:17,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:17,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:17,057 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) [2022-03-03 18:42:17,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:17,170 INFO L93 Difference]: Finished difference Result 2371 states and 8675 transitions. [2022-03-03 18:42:17,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:17,170 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 [2022-03-03 18:42:17,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:17,174 INFO L225 Difference]: With dead ends: 2371 [2022-03-03 18:42:17,174 INFO L226 Difference]: Without dead ends: 2156 [2022-03-03 18:42:17,174 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 [2022-03-03 18:42:17,174 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 [2022-03-03 18:42:17,175 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] [2022-03-03 18:42:17,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-03-03 18:42:17,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 1246. [2022-03-03 18:42:17,192 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) [2022-03-03 18:42:17,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 4861 transitions. [2022-03-03 18:42:17,195 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 4861 transitions. Word has length 25 [2022-03-03 18:42:17,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:17,195 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 4861 transitions. [2022-03-03 18:42:17,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:17,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 4861 transitions. [2022-03-03 18:42:17,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:17,197 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:17,197 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] [2022-03-03 18:42:17,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable532 [2022-03-03 18:42:17,197 INFO L402 AbstractCegarLoop]: === Iteration 534 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:17,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:17,197 INFO L85 PathProgramCache]: Analyzing trace with hash -2124889421, now seen corresponding path program 529 times [2022-03-03 18:42:17,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:17,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325561059] [2022-03-03 18:42:17,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:17,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:17,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:17,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:17,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325561059] [2022-03-03 18:42:17,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325561059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:17,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:17,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:17,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991840731] [2022-03-03 18:42:17,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:17,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:17,314 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:17,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:17,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:17,314 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) [2022-03-03 18:42:17,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:17,405 INFO L93 Difference]: Finished difference Result 2475 states and 8984 transitions. [2022-03-03 18:42:17,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:17,405 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:17,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:17,410 INFO L225 Difference]: With dead ends: 2475 [2022-03-03 18:42:17,410 INFO L226 Difference]: Without dead ends: 2316 [2022-03-03 18:42:17,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:17,410 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 [2022-03-03 18:42:17,410 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] [2022-03-03 18:42:17,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2022-03-03 18:42:17,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 1262. [2022-03-03 18:42:17,429 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) [2022-03-03 18:42:17,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4909 transitions. [2022-03-03 18:42:17,431 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4909 transitions. Word has length 25 [2022-03-03 18:42:17,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:17,432 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4909 transitions. [2022-03-03 18:42:17,432 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) [2022-03-03 18:42:17,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4909 transitions. [2022-03-03 18:42:17,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:17,433 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:17,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:17,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable533 [2022-03-03 18:42:17,434 INFO L402 AbstractCegarLoop]: === Iteration 535 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:17,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:17,434 INFO L85 PathProgramCache]: Analyzing trace with hash 580143125, now seen corresponding path program 530 times [2022-03-03 18:42:17,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:17,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93022627] [2022-03-03 18:42:17,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:17,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:17,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:17,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:17,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93022627] [2022-03-03 18:42:17,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93022627] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:17,551 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:17,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:17,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983160368] [2022-03-03 18:42:17,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:17,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:17,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:17,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:17,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:17,551 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) [2022-03-03 18:42:17,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:17,661 INFO L93 Difference]: Finished difference Result 2505 states and 9077 transitions. [2022-03-03 18:42:17,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:17,661 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:17,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:17,666 INFO L225 Difference]: With dead ends: 2505 [2022-03-03 18:42:17,666 INFO L226 Difference]: Without dead ends: 2300 [2022-03-03 18:42:17,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:17,666 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 [2022-03-03 18:42:17,666 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] [2022-03-03 18:42:17,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2300 states. [2022-03-03 18:42:17,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2300 to 1246. [2022-03-03 18:42:17,684 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) [2022-03-03 18:42:17,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 4853 transitions. [2022-03-03 18:42:17,686 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 4853 transitions. Word has length 25 [2022-03-03 18:42:17,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:17,686 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 4853 transitions. [2022-03-03 18:42:17,686 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) [2022-03-03 18:42:17,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 4853 transitions. [2022-03-03 18:42:17,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:17,688 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:17,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:17,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable534 [2022-03-03 18:42:17,688 INFO L402 AbstractCegarLoop]: === Iteration 536 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:17,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:17,689 INFO L85 PathProgramCache]: Analyzing trace with hash 481831603, now seen corresponding path program 531 times [2022-03-03 18:42:17,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:17,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692108021] [2022-03-03 18:42:17,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:17,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:17,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:17,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:17,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692108021] [2022-03-03 18:42:17,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692108021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:17,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:17,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:17,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396630839] [2022-03-03 18:42:17,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:17,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:17,803 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:17,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:17,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:17,804 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) [2022-03-03 18:42:17,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:17,897 INFO L93 Difference]: Finished difference Result 2469 states and 8959 transitions. [2022-03-03 18:42:17,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:17,897 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 [2022-03-03 18:42:17,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:17,902 INFO L225 Difference]: With dead ends: 2469 [2022-03-03 18:42:17,902 INFO L226 Difference]: Without dead ends: 2310 [2022-03-03 18:42:17,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:17,902 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 [2022-03-03 18:42:17,902 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] [2022-03-03 18:42:17,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2022-03-03 18:42:17,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 1262. [2022-03-03 18:42:17,921 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) [2022-03-03 18:42:17,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4901 transitions. [2022-03-03 18:42:17,923 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4901 transitions. Word has length 25 [2022-03-03 18:42:17,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:17,923 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4901 transitions. [2022-03-03 18:42:17,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:17,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4901 transitions. [2022-03-03 18:42:17,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:17,925 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:17,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:17,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable535 [2022-03-03 18:42:17,925 INFO L402 AbstractCegarLoop]: === Iteration 537 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:17,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:17,925 INFO L85 PathProgramCache]: Analyzing trace with hash -2132639053, now seen corresponding path program 532 times [2022-03-03 18:42:17,926 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:17,926 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522941425] [2022-03-03 18:42:17,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:17,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:18,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:18,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:18,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522941425] [2022-03-03 18:42:18,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522941425] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:18,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:18,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:18,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360037030] [2022-03-03 18:42:18,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:18,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:18,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:18,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:18,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:18,041 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) [2022-03-03 18:42:18,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:18,144 INFO L93 Difference]: Finished difference Result 2493 states and 9035 transitions. [2022-03-03 18:42:18,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:18,144 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:18,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:18,149 INFO L225 Difference]: With dead ends: 2493 [2022-03-03 18:42:18,149 INFO L226 Difference]: Without dead ends: 2294 [2022-03-03 18:42:18,149 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 [2022-03-03 18:42:18,149 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 110 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:18,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 137 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:18,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2022-03-03 18:42:18,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 1246. [2022-03-03 18:42:18,168 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) [2022-03-03 18:42:18,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 4845 transitions. [2022-03-03 18:42:18,170 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 4845 transitions. Word has length 25 [2022-03-03 18:42:18,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:18,171 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 4845 transitions. [2022-03-03 18:42:18,171 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) [2022-03-03 18:42:18,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 4845 transitions. [2022-03-03 18:42:18,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:18,172 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:18,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:18,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable536 [2022-03-03 18:42:18,173 INFO L402 AbstractCegarLoop]: === Iteration 538 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:18,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:18,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1898993557, now seen corresponding path program 533 times [2022-03-03 18:42:18,173 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:18,173 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939579555] [2022-03-03 18:42:18,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:18,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:18,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:18,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:18,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939579555] [2022-03-03 18:42:18,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939579555] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:18,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:18,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:18,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709985401] [2022-03-03 18:42:18,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:18,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:18,303 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:18,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:18,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:18,304 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) [2022-03-03 18:42:18,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:18,407 INFO L93 Difference]: Finished difference Result 2541 states and 9221 transitions. [2022-03-03 18:42:18,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:18,408 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 [2022-03-03 18:42:18,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:18,412 INFO L225 Difference]: With dead ends: 2541 [2022-03-03 18:42:18,412 INFO L226 Difference]: Without dead ends: 2352 [2022-03-03 18:42:18,412 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 [2022-03-03 18:42:18,413 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 114 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:18,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 144 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:18,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2022-03-03 18:42:18,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 1274. [2022-03-03 18:42:18,432 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) [2022-03-03 18:42:18,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4933 transitions. [2022-03-03 18:42:18,434 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4933 transitions. Word has length 25 [2022-03-03 18:42:18,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:18,434 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4933 transitions. [2022-03-03 18:42:18,434 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) [2022-03-03 18:42:18,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4933 transitions. [2022-03-03 18:42:18,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:18,436 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:18,436 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] [2022-03-03 18:42:18,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable537 [2022-03-03 18:42:18,436 INFO L402 AbstractCegarLoop]: === Iteration 539 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:18,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:18,437 INFO L85 PathProgramCache]: Analyzing trace with hash 506849011, now seen corresponding path program 534 times [2022-03-03 18:42:18,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:18,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057969287] [2022-03-03 18:42:18,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:18,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:18,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:18,551 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:18,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057969287] [2022-03-03 18:42:18,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057969287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:18,552 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:18,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:18,552 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127675773] [2022-03-03 18:42:18,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:18,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:18,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:18,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:18,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:18,552 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) [2022-03-03 18:42:18,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:18,659 INFO L93 Difference]: Finished difference Result 2535 states and 9176 transitions. [2022-03-03 18:42:18,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:18,659 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:18,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:18,664 INFO L225 Difference]: With dead ends: 2535 [2022-03-03 18:42:18,664 INFO L226 Difference]: Without dead ends: 2316 [2022-03-03 18:42:18,664 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 [2022-03-03 18:42:18,664 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 101 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:18,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 147 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:18,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2022-03-03 18:42:18,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 1238. [2022-03-03 18:42:18,683 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) [2022-03-03 18:42:18,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4821 transitions. [2022-03-03 18:42:18,685 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4821 transitions. Word has length 25 [2022-03-03 18:42:18,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:18,685 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4821 transitions. [2022-03-03 18:42:18,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:18,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4821 transitions. [2022-03-03 18:42:18,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:18,687 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:18,687 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] [2022-03-03 18:42:18,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable538 [2022-03-03 18:42:18,687 INFO L402 AbstractCegarLoop]: === Iteration 540 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:18,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:18,687 INFO L85 PathProgramCache]: Analyzing trace with hash 147016337, now seen corresponding path program 535 times [2022-03-03 18:42:18,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:18,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546409039] [2022-03-03 18:42:18,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:18,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:18,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:18,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:18,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546409039] [2022-03-03 18:42:18,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546409039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:18,805 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:18,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:18,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067586391] [2022-03-03 18:42:18,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:18,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:18,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:18,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:18,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:18,805 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) [2022-03-03 18:42:18,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:18,901 INFO L93 Difference]: Finished difference Result 2439 states and 8836 transitions. [2022-03-03 18:42:18,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:18,902 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 [2022-03-03 18:42:18,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:18,906 INFO L225 Difference]: With dead ends: 2439 [2022-03-03 18:42:18,906 INFO L226 Difference]: Without dead ends: 2280 [2022-03-03 18:42:18,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:18,906 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 105 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:18,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 154 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:18,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2280 states. [2022-03-03 18:42:18,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2280 to 1238. [2022-03-03 18:42:18,925 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) [2022-03-03 18:42:18,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4805 transitions. [2022-03-03 18:42:18,927 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4805 transitions. Word has length 25 [2022-03-03 18:42:18,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:18,927 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4805 transitions. [2022-03-03 18:42:18,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:18,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4805 transitions. [2022-03-03 18:42:18,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:18,929 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:18,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:18,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable539 [2022-03-03 18:42:18,929 INFO L402 AbstractCegarLoop]: === Iteration 541 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:18,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:18,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1442918413, now seen corresponding path program 536 times [2022-03-03 18:42:18,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:18,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627144224] [2022-03-03 18:42:18,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:18,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:19,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:19,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:19,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627144224] [2022-03-03 18:42:19,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627144224] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:19,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:19,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:19,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090701330] [2022-03-03 18:42:19,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:19,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:19,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:19,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:19,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:19,047 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) [2022-03-03 18:42:19,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:19,147 INFO L93 Difference]: Finished difference Result 2469 states and 8929 transitions. [2022-03-03 18:42:19,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:19,147 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:19,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:19,151 INFO L225 Difference]: With dead ends: 2469 [2022-03-03 18:42:19,151 INFO L226 Difference]: Without dead ends: 2264 [2022-03-03 18:42:19,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:19,152 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:19,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 132 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:19,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states. [2022-03-03 18:42:19,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 1222. [2022-03-03 18:42:19,169 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) [2022-03-03 18:42:19,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 4749 transitions. [2022-03-03 18:42:19,172 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 4749 transitions. Word has length 25 [2022-03-03 18:42:19,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:19,172 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 4749 transitions. [2022-03-03 18:42:19,172 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) [2022-03-03 18:42:19,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 4749 transitions. [2022-03-03 18:42:19,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:19,173 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:19,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:19,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable540 [2022-03-03 18:42:19,174 INFO L402 AbstractCegarLoop]: === Iteration 542 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:19,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:19,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1516636851, now seen corresponding path program 537 times [2022-03-03 18:42:19,174 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:19,174 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479134678] [2022-03-03 18:42:19,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:19,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:19,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:19,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:19,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479134678] [2022-03-03 18:42:19,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479134678] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:19,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:19,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:19,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602393199] [2022-03-03 18:42:19,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:19,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:19,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:19,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:19,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:19,295 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) [2022-03-03 18:42:19,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:19,393 INFO L93 Difference]: Finished difference Result 2393 states and 8671 transitions. [2022-03-03 18:42:19,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:19,393 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:19,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:19,398 INFO L225 Difference]: With dead ends: 2393 [2022-03-03 18:42:19,398 INFO L226 Difference]: Without dead ends: 2234 [2022-03-03 18:42:19,398 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 [2022-03-03 18:42:19,398 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:19,398 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] [2022-03-03 18:42:19,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2022-03-03 18:42:19,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 1238. [2022-03-03 18:42:19,416 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) [2022-03-03 18:42:19,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4797 transitions. [2022-03-03 18:42:19,434 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4797 transitions. Word has length 25 [2022-03-03 18:42:19,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:19,435 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4797 transitions. [2022-03-03 18:42:19,435 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) [2022-03-03 18:42:19,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4797 transitions. [2022-03-03 18:42:19,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:19,437 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:19,437 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] [2022-03-03 18:42:19,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable541 [2022-03-03 18:42:19,437 INFO L402 AbstractCegarLoop]: === Iteration 543 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:19,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:19,437 INFO L85 PathProgramCache]: Analyzing trace with hash -425635149, now seen corresponding path program 538 times [2022-03-03 18:42:19,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:19,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934908035] [2022-03-03 18:42:19,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:19,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:19,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:19,554 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:19,554 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934908035] [2022-03-03 18:42:19,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934908035] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:19,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:19,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:19,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399363881] [2022-03-03 18:42:19,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:19,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:19,554 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:19,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:19,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:19,554 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) [2022-03-03 18:42:19,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:19,659 INFO L93 Difference]: Finished difference Result 2281 states and 8334 transitions. [2022-03-03 18:42:19,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:19,660 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:19,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:19,664 INFO L225 Difference]: With dead ends: 2281 [2022-03-03 18:42:19,664 INFO L226 Difference]: Without dead ends: 2090 [2022-03-03 18:42:19,664 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 [2022-03-03 18:42:19,664 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 [2022-03-03 18:42:19,664 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] [2022-03-03 18:42:19,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2022-03-03 18:42:19,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 1222. [2022-03-03 18:42:19,682 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) [2022-03-03 18:42:19,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 4741 transitions. [2022-03-03 18:42:19,685 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 4741 transitions. Word has length 25 [2022-03-03 18:42:19,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:19,685 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 4741 transitions. [2022-03-03 18:42:19,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:19,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 4741 transitions. [2022-03-03 18:42:19,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:19,686 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:19,686 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] [2022-03-03 18:42:19,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable542 [2022-03-03 18:42:19,687 INFO L402 AbstractCegarLoop]: === Iteration 544 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:19,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:19,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1361168491, now seen corresponding path program 539 times [2022-03-03 18:42:19,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:19,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857535394] [2022-03-03 18:42:19,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:19,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:19,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:19,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857535394] [2022-03-03 18:42:19,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857535394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:19,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:19,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:19,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898986381] [2022-03-03 18:42:19,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:19,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:19,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:19,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:19,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:19,804 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) [2022-03-03 18:42:19,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:19,909 INFO L93 Difference]: Finished difference Result 2431 states and 8808 transitions. [2022-03-03 18:42:19,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:19,910 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 [2022-03-03 18:42:19,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:19,914 INFO L225 Difference]: With dead ends: 2431 [2022-03-03 18:42:19,914 INFO L226 Difference]: Without dead ends: 2242 [2022-03-03 18:42:19,914 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 [2022-03-03 18:42:19,914 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 108 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:19,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 146 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:19,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2022-03-03 18:42:19,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 1246. [2022-03-03 18:42:19,933 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) [2022-03-03 18:42:19,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 4817 transitions. [2022-03-03 18:42:19,935 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 4817 transitions. Word has length 25 [2022-03-03 18:42:19,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:19,935 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 4817 transitions. [2022-03-03 18:42:19,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:19,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 4817 transitions. [2022-03-03 18:42:19,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:19,937 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:19,937 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] [2022-03-03 18:42:19,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable543 [2022-03-03 18:42:19,937 INFO L402 AbstractCegarLoop]: === Iteration 545 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:19,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:19,938 INFO L85 PathProgramCache]: Analyzing trace with hash -2102120589, now seen corresponding path program 540 times [2022-03-03 18:42:19,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:19,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724910259] [2022-03-03 18:42:19,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:19,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:20,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:20,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:20,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724910259] [2022-03-03 18:42:20,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724910259] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:20,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:20,055 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:20,055 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875461592] [2022-03-03 18:42:20,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:20,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:20,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:20,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:20,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:20,055 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) [2022-03-03 18:42:20,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:20,158 INFO L93 Difference]: Finished difference Result 2289 states and 8354 transitions. [2022-03-03 18:42:20,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:20,158 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:20,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:20,162 INFO L225 Difference]: With dead ends: 2289 [2022-03-03 18:42:20,162 INFO L226 Difference]: Without dead ends: 2082 [2022-03-03 18:42:20,162 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 [2022-03-03 18:42:20,162 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 104 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:20,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 149 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:20,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2022-03-03 18:42:20,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 1214. [2022-03-03 18:42:20,179 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) [2022-03-03 18:42:20,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 4717 transitions. [2022-03-03 18:42:20,182 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 4717 transitions. Word has length 25 [2022-03-03 18:42:20,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:20,182 INFO L470 AbstractCegarLoop]: Abstraction has 1214 states and 4717 transitions. [2022-03-03 18:42:20,182 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) [2022-03-03 18:42:20,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 4717 transitions. [2022-03-03 18:42:20,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:20,184 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:20,184 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] [2022-03-03 18:42:20,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable544 [2022-03-03 18:42:20,184 INFO L402 AbstractCegarLoop]: === Iteration 546 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:20,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:20,184 INFO L85 PathProgramCache]: Analyzing trace with hash 871793331, now seen corresponding path program 541 times [2022-03-03 18:42:20,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:20,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074894814] [2022-03-03 18:42:20,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:20,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:20,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:20,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:20,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074894814] [2022-03-03 18:42:20,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074894814] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:20,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:20,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:20,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958938110] [2022-03-03 18:42:20,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:20,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:20,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:20,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:20,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:20,301 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) [2022-03-03 18:42:20,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:20,396 INFO L93 Difference]: Finished difference Result 2395 states and 8686 transitions. [2022-03-03 18:42:20,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:20,396 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:20,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:20,401 INFO L225 Difference]: With dead ends: 2395 [2022-03-03 18:42:20,401 INFO L226 Difference]: Without dead ends: 2236 [2022-03-03 18:42:20,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:20,401 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 109 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:20,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 148 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:20,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2022-03-03 18:42:20,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 1238. [2022-03-03 18:42:20,420 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) [2022-03-03 18:42:20,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4801 transitions. [2022-03-03 18:42:20,423 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4801 transitions. Word has length 25 [2022-03-03 18:42:20,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:20,423 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4801 transitions. [2022-03-03 18:42:20,423 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) [2022-03-03 18:42:20,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4801 transitions. [2022-03-03 18:42:20,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:20,425 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:20,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:20,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable545 [2022-03-03 18:42:20,425 INFO L402 AbstractCegarLoop]: === Iteration 547 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:20,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:20,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1742677325, now seen corresponding path program 542 times [2022-03-03 18:42:20,425 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:20,425 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766209598] [2022-03-03 18:42:20,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:20,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:20,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:20,542 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:20,542 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766209598] [2022-03-03 18:42:20,542 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766209598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:20,542 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:20,542 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:20,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713147136] [2022-03-03 18:42:20,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:20,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:20,543 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:20,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:20,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:20,543 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) [2022-03-03 18:42:20,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:20,657 INFO L93 Difference]: Finished difference Result 2419 states and 8762 transitions. [2022-03-03 18:42:20,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:20,657 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:20,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:20,662 INFO L225 Difference]: With dead ends: 2419 [2022-03-03 18:42:20,662 INFO L226 Difference]: Without dead ends: 2220 [2022-03-03 18:42:20,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:20,663 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 104 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:20,663 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] [2022-03-03 18:42:20,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2022-03-03 18:42:20,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 1222. [2022-03-03 18:42:20,681 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) [2022-03-03 18:42:20,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 4745 transitions. [2022-03-03 18:42:20,684 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 4745 transitions. Word has length 25 [2022-03-03 18:42:20,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:20,684 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 4745 transitions. [2022-03-03 18:42:20,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:20,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 4745 transitions. [2022-03-03 18:42:20,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:20,686 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:20,686 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] [2022-03-03 18:42:20,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable546 [2022-03-03 18:42:20,686 INFO L402 AbstractCegarLoop]: === Iteration 548 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:20,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:20,686 INFO L85 PathProgramCache]: Analyzing trace with hash 24996369, now seen corresponding path program 543 times [2022-03-03 18:42:20,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:20,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588178973] [2022-03-03 18:42:20,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:20,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:20,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:20,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:20,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588178973] [2022-03-03 18:42:20,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588178973] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:20,804 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:20,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:20,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399423728] [2022-03-03 18:42:20,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:20,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:20,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:20,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:20,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:20,805 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) [2022-03-03 18:42:20,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:20,898 INFO L93 Difference]: Finished difference Result 2339 states and 8474 transitions. [2022-03-03 18:42:20,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:20,899 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 [2022-03-03 18:42:20,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:20,903 INFO L225 Difference]: With dead ends: 2339 [2022-03-03 18:42:20,903 INFO L226 Difference]: Without dead ends: 2180 [2022-03-03 18:42:20,903 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 [2022-03-03 18:42:20,904 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 115 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:20,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 148 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:20,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2022-03-03 18:42:20,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 1238. [2022-03-03 18:42:20,921 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) [2022-03-03 18:42:20,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4793 transitions. [2022-03-03 18:42:20,924 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4793 transitions. Word has length 25 [2022-03-03 18:42:20,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:20,924 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4793 transitions. [2022-03-03 18:42:20,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:20,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4793 transitions. [2022-03-03 18:42:20,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:20,926 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:20,926 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:20,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable547 [2022-03-03 18:42:20,926 INFO L402 AbstractCegarLoop]: === Iteration 549 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:20,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:20,926 INFO L85 PathProgramCache]: Analyzing trace with hash 667335347, now seen corresponding path program 544 times [2022-03-03 18:42:20,926 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:20,926 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514488528] [2022-03-03 18:42:20,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:20,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:21,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:21,048 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:21,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514488528] [2022-03-03 18:42:21,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514488528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:21,048 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:21,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:21,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913155878] [2022-03-03 18:42:21,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:21,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:21,049 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:21,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:21,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:21,049 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) [2022-03-03 18:42:21,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:21,151 INFO L93 Difference]: Finished difference Result 2227 states and 8137 transitions. [2022-03-03 18:42:21,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:21,152 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:21,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:21,157 INFO L225 Difference]: With dead ends: 2227 [2022-03-03 18:42:21,157 INFO L226 Difference]: Without dead ends: 2036 [2022-03-03 18:42:21,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:21,157 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 103 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:21,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 142 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:21,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2022-03-03 18:42:21,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 1222. [2022-03-03 18:42:21,175 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) [2022-03-03 18:42:21,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 4737 transitions. [2022-03-03 18:42:21,177 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 4737 transitions. Word has length 25 [2022-03-03 18:42:21,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:21,177 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 4737 transitions. [2022-03-03 18:42:21,177 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) [2022-03-03 18:42:21,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 4737 transitions. [2022-03-03 18:42:21,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:21,179 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:21,179 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] [2022-03-03 18:42:21,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable548 [2022-03-03 18:42:21,179 INFO L402 AbstractCegarLoop]: === Iteration 550 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:21,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:21,180 INFO L85 PathProgramCache]: Analyzing trace with hash 44704435, now seen corresponding path program 545 times [2022-03-03 18:42:21,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:21,180 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630965174] [2022-03-03 18:42:21,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:21,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:21,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:21,300 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:21,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630965174] [2022-03-03 18:42:21,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630965174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:21,300 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:21,300 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:21,300 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962037207] [2022-03-03 18:42:21,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:21,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:21,300 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:21,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:21,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:21,300 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) [2022-03-03 18:42:21,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:21,410 INFO L93 Difference]: Finished difference Result 2243 states and 8209 transitions. [2022-03-03 18:42:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:21,410 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:21,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:21,415 INFO L225 Difference]: With dead ends: 2243 [2022-03-03 18:42:21,415 INFO L226 Difference]: Without dead ends: 2060 [2022-03-03 18:42:21,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:21,415 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:21,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 141 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:21,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2060 states. [2022-03-03 18:42:21,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2060 to 1246. [2022-03-03 18:42:21,431 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) [2022-03-03 18:42:21,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 4813 transitions. [2022-03-03 18:42:21,434 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 4813 transitions. Word has length 25 [2022-03-03 18:42:21,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:21,434 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 4813 transitions. [2022-03-03 18:42:21,434 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) [2022-03-03 18:42:21,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 4813 transitions. [2022-03-03 18:42:21,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:21,436 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:21,436 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] [2022-03-03 18:42:21,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable549 [2022-03-03 18:42:21,436 INFO L402 AbstractCegarLoop]: === Iteration 551 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:21,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:21,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1998632559, now seen corresponding path program 546 times [2022-03-03 18:42:21,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:21,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585881767] [2022-03-03 18:42:21,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:21,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:21,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:21,551 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:21,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585881767] [2022-03-03 18:42:21,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585881767] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:21,551 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:21,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:21,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891691875] [2022-03-03 18:42:21,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:21,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:21,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:21,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:21,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:21,551 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) [2022-03-03 18:42:21,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:21,650 INFO L93 Difference]: Finished difference Result 2059 states and 7596 transitions. [2022-03-03 18:42:21,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:21,651 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:21,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:21,654 INFO L225 Difference]: With dead ends: 2059 [2022-03-03 18:42:21,654 INFO L226 Difference]: Without dead ends: 1852 [2022-03-03 18:42:21,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:21,655 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 84 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:21,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 144 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:21,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2022-03-03 18:42:21,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1214. [2022-03-03 18:42:21,670 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) [2022-03-03 18:42:21,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 4713 transitions. [2022-03-03 18:42:21,673 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 4713 transitions. Word has length 25 [2022-03-03 18:42:21,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:21,673 INFO L470 AbstractCegarLoop]: Abstraction has 1214 states and 4713 transitions. [2022-03-03 18:42:21,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:21,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 4713 transitions. [2022-03-03 18:42:21,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:21,674 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:21,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:21,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable550 [2022-03-03 18:42:21,675 INFO L402 AbstractCegarLoop]: === Iteration 552 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:21,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:21,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1595897621, now seen corresponding path program 547 times [2022-03-03 18:42:21,675 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:21,675 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640117903] [2022-03-03 18:42:21,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:21,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:21,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:21,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:21,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640117903] [2022-03-03 18:42:21,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640117903] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:21,788 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:21,788 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:21,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333497924] [2022-03-03 18:42:21,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:21,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:21,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:21,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:21,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:21,788 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) [2022-03-03 18:42:21,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:21,891 INFO L93 Difference]: Finished difference Result 2479 states and 9008 transitions. [2022-03-03 18:42:21,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:21,891 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:21,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:21,895 INFO L225 Difference]: With dead ends: 2479 [2022-03-03 18:42:21,896 INFO L226 Difference]: Without dead ends: 2290 [2022-03-03 18:42:21,896 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 [2022-03-03 18:42:21,896 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 116 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:21,896 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] [2022-03-03 18:42:21,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2022-03-03 18:42:21,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 1254. [2022-03-03 18:42:21,914 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) [2022-03-03 18:42:21,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 4857 transitions. [2022-03-03 18:42:21,916 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 4857 transitions. Word has length 25 [2022-03-03 18:42:21,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:21,916 INFO L470 AbstractCegarLoop]: Abstraction has 1254 states and 4857 transitions. [2022-03-03 18:42:21,916 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) [2022-03-03 18:42:21,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 4857 transitions. [2022-03-03 18:42:21,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:21,918 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:21,918 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] [2022-03-03 18:42:21,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable551 [2022-03-03 18:42:21,918 INFO L402 AbstractCegarLoop]: === Iteration 553 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:21,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:21,918 INFO L85 PathProgramCache]: Analyzing trace with hash 203753075, now seen corresponding path program 548 times [2022-03-03 18:42:21,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:21,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13294375] [2022-03-03 18:42:21,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:21,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:22,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:22,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:22,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13294375] [2022-03-03 18:42:22,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13294375] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:22,032 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:22,032 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:22,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114997111] [2022-03-03 18:42:22,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:22,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:22,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:22,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:22,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:22,033 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) [2022-03-03 18:42:22,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:22,134 INFO L93 Difference]: Finished difference Result 2473 states and 8963 transitions. [2022-03-03 18:42:22,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:22,135 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:22,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:22,140 INFO L225 Difference]: With dead ends: 2473 [2022-03-03 18:42:22,140 INFO L226 Difference]: Without dead ends: 2262 [2022-03-03 18:42:22,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:22,140 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 [2022-03-03 18:42:22,140 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] [2022-03-03 18:42:22,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2022-03-03 18:42:22,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 1226. [2022-03-03 18:42:22,157 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) [2022-03-03 18:42:22,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 4757 transitions. [2022-03-03 18:42:22,160 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 4757 transitions. Word has length 25 [2022-03-03 18:42:22,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:22,160 INFO L470 AbstractCegarLoop]: Abstraction has 1226 states and 4757 transitions. [2022-03-03 18:42:22,160 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) [2022-03-03 18:42:22,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 4757 transitions. [2022-03-03 18:42:22,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:22,162 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:22,162 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] [2022-03-03 18:42:22,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable552 [2022-03-03 18:42:22,162 INFO L402 AbstractCegarLoop]: === Iteration 554 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:22,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:22,162 INFO L85 PathProgramCache]: Analyzing trace with hash 749100659, now seen corresponding path program 549 times [2022-03-03 18:42:22,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:22,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354383126] [2022-03-03 18:42:22,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:22,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:22,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:22,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:22,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354383126] [2022-03-03 18:42:22,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354383126] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:22,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:22,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:22,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974606565] [2022-03-03 18:42:22,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:22,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:22,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:22,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:22,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:22,282 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) [2022-03-03 18:42:22,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:22,384 INFO L93 Difference]: Finished difference Result 2381 states and 8631 transitions. [2022-03-03 18:42:22,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:22,384 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:22,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:22,389 INFO L225 Difference]: With dead ends: 2381 [2022-03-03 18:42:22,389 INFO L226 Difference]: Without dead ends: 2192 [2022-03-03 18:42:22,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:22,389 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 [2022-03-03 18:42:22,389 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] [2022-03-03 18:42:22,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2192 states. [2022-03-03 18:42:22,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2192 to 1250. [2022-03-03 18:42:22,407 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) [2022-03-03 18:42:22,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 4833 transitions. [2022-03-03 18:42:22,409 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 4833 transitions. Word has length 25 [2022-03-03 18:42:22,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:22,409 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 4833 transitions. [2022-03-03 18:42:22,409 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) [2022-03-03 18:42:22,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 4833 transitions. [2022-03-03 18:42:22,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:22,411 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:22,411 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] [2022-03-03 18:42:22,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable553 [2022-03-03 18:42:22,411 INFO L402 AbstractCegarLoop]: === Iteration 555 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:22,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:22,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1702207757, now seen corresponding path program 550 times [2022-03-03 18:42:22,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:22,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483596006] [2022-03-03 18:42:22,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:22,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:22,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:22,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:22,528 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483596006] [2022-03-03 18:42:22,528 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483596006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:22,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:22,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:22,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693962303] [2022-03-03 18:42:22,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:22,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:22,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:22,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:22,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:22,528 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) [2022-03-03 18:42:22,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:22,627 INFO L93 Difference]: Finished difference Result 2239 states and 8177 transitions. [2022-03-03 18:42:22,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:22,627 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:22,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:22,631 INFO L225 Difference]: With dead ends: 2239 [2022-03-03 18:42:22,631 INFO L226 Difference]: Without dead ends: 2040 [2022-03-03 18:42:22,631 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 [2022-03-03 18:42:22,631 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 109 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:22,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 138 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:22,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states. [2022-03-03 18:42:22,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 1226. [2022-03-03 18:42:22,648 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) [2022-03-03 18:42:22,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 4745 transitions. [2022-03-03 18:42:22,651 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 4745 transitions. Word has length 25 [2022-03-03 18:42:22,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:22,651 INFO L470 AbstractCegarLoop]: Abstraction has 1226 states and 4745 transitions. [2022-03-03 18:42:22,651 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) [2022-03-03 18:42:22,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 4745 transitions. [2022-03-03 18:42:22,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:22,652 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:22,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:22,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable554 [2022-03-03 18:42:22,653 INFO L402 AbstractCegarLoop]: === Iteration 556 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:22,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:22,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1113358033, now seen corresponding path program 551 times [2022-03-03 18:42:22,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:22,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105825068] [2022-03-03 18:42:22,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:22,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:22,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:22,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:22,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:22,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105825068] [2022-03-03 18:42:22,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105825068] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:22,769 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:22,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:22,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027516227] [2022-03-03 18:42:22,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:22,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:22,770 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:22,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:22,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:22,770 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) [2022-03-03 18:42:22,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:22,869 INFO L93 Difference]: Finished difference Result 2247 states and 8217 transitions. [2022-03-03 18:42:22,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:22,869 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:22,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:22,873 INFO L225 Difference]: With dead ends: 2247 [2022-03-03 18:42:22,873 INFO L226 Difference]: Without dead ends: 2064 [2022-03-03 18:42:22,873 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 [2022-03-03 18:42:22,873 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 103 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:22,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 141 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:22,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2064 states. [2022-03-03 18:42:22,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2064 to 1250. [2022-03-03 18:42:22,890 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) [2022-03-03 18:42:22,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 4821 transitions. [2022-03-03 18:42:22,893 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 4821 transitions. Word has length 25 [2022-03-03 18:42:22,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:22,893 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 4821 transitions. [2022-03-03 18:42:22,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:22,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 4821 transitions. [2022-03-03 18:42:22,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:22,895 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:22,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:22,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable555 [2022-03-03 18:42:22,895 INFO L402 AbstractCegarLoop]: === Iteration 557 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:22,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:22,895 INFO L85 PathProgramCache]: Analyzing trace with hash -2100546637, now seen corresponding path program 552 times [2022-03-03 18:42:22,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:22,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027624235] [2022-03-03 18:42:22,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:22,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:23,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:23,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:23,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027624235] [2022-03-03 18:42:23,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027624235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:23,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:23,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:23,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463648464] [2022-03-03 18:42:23,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:23,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:23,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:23,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:23,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:23,017 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) [2022-03-03 18:42:23,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:23,115 INFO L93 Difference]: Finished difference Result 2063 states and 7604 transitions. [2022-03-03 18:42:23,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:23,115 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 [2022-03-03 18:42:23,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:23,119 INFO L225 Difference]: With dead ends: 2063 [2022-03-03 18:42:23,119 INFO L226 Difference]: Without dead ends: 1848 [2022-03-03 18:42:23,119 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 [2022-03-03 18:42:23,119 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 86 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:23,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 146 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:23,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states. [2022-03-03 18:42:23,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1210. [2022-03-03 18:42:23,136 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) [2022-03-03 18:42:23,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 4703 transitions. [2022-03-03 18:42:23,139 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 4703 transitions. Word has length 25 [2022-03-03 18:42:23,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:23,139 INFO L470 AbstractCegarLoop]: Abstraction has 1210 states and 4703 transitions. [2022-03-03 18:42:23,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:23,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 4703 transitions. [2022-03-03 18:42:23,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:23,141 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:23,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:23,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable556 [2022-03-03 18:42:23,141 INFO L402 AbstractCegarLoop]: === Iteration 558 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:23,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:23,141 INFO L85 PathProgramCache]: Analyzing trace with hash -2045368683, now seen corresponding path program 553 times [2022-03-03 18:42:23,141 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:23,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701033342] [2022-03-03 18:42:23,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:23,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:23,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:23,260 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:23,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701033342] [2022-03-03 18:42:23,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701033342] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:23,261 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:23,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:23,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709927003] [2022-03-03 18:42:23,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:23,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:23,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:23,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:23,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:23,261 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) [2022-03-03 18:42:23,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:23,362 INFO L93 Difference]: Finished difference Result 2385 states and 8635 transitions. [2022-03-03 18:42:23,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:23,363 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:23,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:23,367 INFO L225 Difference]: With dead ends: 2385 [2022-03-03 18:42:23,367 INFO L226 Difference]: Without dead ends: 2226 [2022-03-03 18:42:23,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:23,367 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 112 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:23,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 141 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:23,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2022-03-03 18:42:23,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 1226. [2022-03-03 18:42:23,384 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) [2022-03-03 18:42:23,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 4751 transitions. [2022-03-03 18:42:23,387 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 4751 transitions. Word has length 25 [2022-03-03 18:42:23,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:23,387 INFO L470 AbstractCegarLoop]: Abstraction has 1226 states and 4751 transitions. [2022-03-03 18:42:23,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:23,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 4751 transitions. [2022-03-03 18:42:23,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:23,388 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:23,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:23,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable557 [2022-03-03 18:42:23,389 INFO L402 AbstractCegarLoop]: === Iteration 559 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:23,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:23,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1037070699, now seen corresponding path program 554 times [2022-03-03 18:42:23,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:23,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153051587] [2022-03-03 18:42:23,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:23,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:23,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:23,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:23,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153051587] [2022-03-03 18:42:23,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153051587] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:23,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:23,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:23,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062928722] [2022-03-03 18:42:23,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:23,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:23,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:23,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:23,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:23,505 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) [2022-03-03 18:42:23,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:23,615 INFO L93 Difference]: Finished difference Result 2413 states and 8723 transitions. [2022-03-03 18:42:23,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:23,615 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 [2022-03-03 18:42:23,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:23,620 INFO L225 Difference]: With dead ends: 2413 [2022-03-03 18:42:23,620 INFO L226 Difference]: Without dead ends: 2210 [2022-03-03 18:42:23,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:23,620 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 108 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:23,620 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] [2022-03-03 18:42:23,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2022-03-03 18:42:23,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 1210. [2022-03-03 18:42:23,638 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) [2022-03-03 18:42:23,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 4695 transitions. [2022-03-03 18:42:23,640 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 4695 transitions. Word has length 25 [2022-03-03 18:42:23,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:23,640 INFO L470 AbstractCegarLoop]: Abstraction has 1210 states and 4695 transitions. [2022-03-03 18:42:23,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:23,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 4695 transitions. [2022-03-03 18:42:23,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:23,642 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:23,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:23,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable558 [2022-03-03 18:42:23,642 INFO L402 AbstractCegarLoop]: === Iteration 560 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:23,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:23,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1402801651, now seen corresponding path program 555 times [2022-03-03 18:42:23,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:23,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762790012] [2022-03-03 18:42:23,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:23,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:23,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:23,759 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:23,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762790012] [2022-03-03 18:42:23,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762790012] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:23,759 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:23,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:23,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101759604] [2022-03-03 18:42:23,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:23,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:23,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:23,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:23,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:23,760 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) [2022-03-03 18:42:23,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:23,847 INFO L93 Difference]: Finished difference Result 2381 states and 8615 transitions. [2022-03-03 18:42:23,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:23,847 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 [2022-03-03 18:42:23,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:23,852 INFO L225 Difference]: With dead ends: 2381 [2022-03-03 18:42:23,852 INFO L226 Difference]: Without dead ends: 2222 [2022-03-03 18:42:23,852 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 [2022-03-03 18:42:23,852 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 132 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:23,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 126 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:23,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2022-03-03 18:42:23,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 1226. [2022-03-03 18:42:23,869 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) [2022-03-03 18:42:23,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 4743 transitions. [2022-03-03 18:42:23,871 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 4743 transitions. Word has length 25 [2022-03-03 18:42:23,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:23,871 INFO L470 AbstractCegarLoop]: Abstraction has 1226 states and 4743 transitions. [2022-03-03 18:42:23,871 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) [2022-03-03 18:42:23,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 4743 transitions. [2022-03-03 18:42:23,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:23,873 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:23,873 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] [2022-03-03 18:42:23,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable559 [2022-03-03 18:42:23,873 INFO L402 AbstractCegarLoop]: === Iteration 561 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:23,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:23,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1372941973, now seen corresponding path program 556 times [2022-03-03 18:42:23,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:23,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120823962] [2022-03-03 18:42:23,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:23,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:23,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:23,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:23,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120823962] [2022-03-03 18:42:23,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120823962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:23,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:23,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:23,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376851338] [2022-03-03 18:42:23,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:23,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:23,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:23,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:23,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:23,991 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) [2022-03-03 18:42:24,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:24,098 INFO L93 Difference]: Finished difference Result 2405 states and 8691 transitions. [2022-03-03 18:42:24,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:24,098 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 [2022-03-03 18:42:24,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:24,102 INFO L225 Difference]: With dead ends: 2405 [2022-03-03 18:42:24,102 INFO L226 Difference]: Without dead ends: 2206 [2022-03-03 18:42:24,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:24,102 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 104 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:24,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 140 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:24,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-03-03 18:42:24,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 1210. [2022-03-03 18:42:24,119 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) [2022-03-03 18:42:24,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 4687 transitions. [2022-03-03 18:42:24,122 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 4687 transitions. Word has length 25 [2022-03-03 18:42:24,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:24,122 INFO L470 AbstractCegarLoop]: Abstraction has 1210 states and 4687 transitions. [2022-03-03 18:42:24,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:24,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 4687 transitions. [2022-03-03 18:42:24,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:24,124 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:24,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:24,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable560 [2022-03-03 18:42:24,124 INFO L402 AbstractCegarLoop]: === Iteration 562 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:24,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:24,124 INFO L85 PathProgramCache]: Analyzing trace with hash -987502955, now seen corresponding path program 557 times [2022-03-03 18:42:24,124 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:24,124 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985558865] [2022-03-03 18:42:24,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:24,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:24,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:24,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:24,241 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985558865] [2022-03-03 18:42:24,241 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985558865] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:24,241 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:24,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:24,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735038140] [2022-03-03 18:42:24,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:24,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:24,241 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:24,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:24,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:24,241 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) [2022-03-03 18:42:24,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:24,349 INFO L93 Difference]: Finished difference Result 2449 states and 8867 transitions. [2022-03-03 18:42:24,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:24,349 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 [2022-03-03 18:42:24,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:24,354 INFO L225 Difference]: With dead ends: 2449 [2022-03-03 18:42:24,354 INFO L226 Difference]: Without dead ends: 2262 [2022-03-03 18:42:24,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:24,354 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 108 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:24,354 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] [2022-03-03 18:42:24,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2022-03-03 18:42:24,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 1238. [2022-03-03 18:42:24,371 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) [2022-03-03 18:42:24,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4775 transitions. [2022-03-03 18:42:24,374 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4775 transitions. Word has length 25 [2022-03-03 18:42:24,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:24,374 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4775 transitions. [2022-03-03 18:42:24,374 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) [2022-03-03 18:42:24,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4775 transitions. [2022-03-03 18:42:24,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:24,376 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:24,376 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] [2022-03-03 18:42:24,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable561 [2022-03-03 18:42:24,376 INFO L402 AbstractCegarLoop]: === Iteration 563 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:24,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:24,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1264127347, now seen corresponding path program 558 times [2022-03-03 18:42:24,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:24,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900115004] [2022-03-03 18:42:24,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:24,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:24,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:24,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:24,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900115004] [2022-03-03 18:42:24,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900115004] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:24,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:24,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:24,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793611875] [2022-03-03 18:42:24,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:24,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:24,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:24,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:24,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:24,496 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) [2022-03-03 18:42:24,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:24,593 INFO L93 Difference]: Finished difference Result 2445 states and 8827 transitions. [2022-03-03 18:42:24,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:24,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:24,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:24,597 INFO L225 Difference]: With dead ends: 2445 [2022-03-03 18:42:24,597 INFO L226 Difference]: Without dead ends: 2226 [2022-03-03 18:42:24,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:24,597 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:24,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 128 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:24,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2022-03-03 18:42:24,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 1202. [2022-03-03 18:42:24,615 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) [2022-03-03 18:42:24,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 4663 transitions. [2022-03-03 18:42:24,617 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 4663 transitions. Word has length 25 [2022-03-03 18:42:24,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:24,617 INFO L470 AbstractCegarLoop]: Abstraction has 1202 states and 4663 transitions. [2022-03-03 18:42:24,617 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) [2022-03-03 18:42:24,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 4663 transitions. [2022-03-03 18:42:24,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:24,619 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:24,619 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] [2022-03-03 18:42:24,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable562 [2022-03-03 18:42:24,619 INFO L402 AbstractCegarLoop]: === Iteration 564 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:24,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:24,619 INFO L85 PathProgramCache]: Analyzing trace with hash 226537075, now seen corresponding path program 559 times [2022-03-03 18:42:24,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:24,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730377755] [2022-03-03 18:42:24,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:24,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:24,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:24,739 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:24,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730377755] [2022-03-03 18:42:24,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730377755] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:24,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:24,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:24,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648245904] [2022-03-03 18:42:24,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:24,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:24,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:24,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:24,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:24,739 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) [2022-03-03 18:42:24,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:24,831 INFO L93 Difference]: Finished difference Result 2349 states and 8487 transitions. [2022-03-03 18:42:24,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:24,831 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 [2022-03-03 18:42:24,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:24,836 INFO L225 Difference]: With dead ends: 2349 [2022-03-03 18:42:24,836 INFO L226 Difference]: Without dead ends: 2190 [2022-03-03 18:42:24,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:24,836 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 116 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:24,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 137 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:24,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2022-03-03 18:42:24,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 1202. [2022-03-03 18:42:24,853 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) [2022-03-03 18:42:24,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 4647 transitions. [2022-03-03 18:42:24,855 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 4647 transitions. Word has length 25 [2022-03-03 18:42:24,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:24,855 INFO L470 AbstractCegarLoop]: Abstraction has 1202 states and 4647 transitions. [2022-03-03 18:42:24,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:24,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 4647 transitions. [2022-03-03 18:42:24,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:24,857 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:24,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:24,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable563 [2022-03-03 18:42:24,857 INFO L402 AbstractCegarLoop]: === Iteration 565 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:24,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:24,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1234835059, now seen corresponding path program 560 times [2022-03-03 18:42:24,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:24,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820036901] [2022-03-03 18:42:24,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:24,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:24,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:24,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:24,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820036901] [2022-03-03 18:42:24,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820036901] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:24,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:24,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:24,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268233419] [2022-03-03 18:42:24,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:24,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:24,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:24,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:24,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:24,991 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) [2022-03-03 18:42:25,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:25,097 INFO L93 Difference]: Finished difference Result 2377 states and 8575 transitions. [2022-03-03 18:42:25,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:25,097 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:25,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:25,102 INFO L225 Difference]: With dead ends: 2377 [2022-03-03 18:42:25,102 INFO L226 Difference]: Without dead ends: 2174 [2022-03-03 18:42:25,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:25,102 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 117 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:25,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 143 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:25,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2022-03-03 18:42:25,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 1186. [2022-03-03 18:42:25,119 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) [2022-03-03 18:42:25,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 4591 transitions. [2022-03-03 18:42:25,121 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 4591 transitions. Word has length 25 [2022-03-03 18:42:25,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:25,121 INFO L470 AbstractCegarLoop]: Abstraction has 1186 states and 4591 transitions. [2022-03-03 18:42:25,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:25,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 4591 transitions. [2022-03-03 18:42:25,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:25,123 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:25,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:25,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable564 [2022-03-03 18:42:25,123 INFO L402 AbstractCegarLoop]: === Iteration 566 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:25,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:25,123 INFO L85 PathProgramCache]: Analyzing trace with hash -569489805, now seen corresponding path program 561 times [2022-03-03 18:42:25,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:25,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506820078] [2022-03-03 18:42:25,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:25,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:25,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:25,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:25,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506820078] [2022-03-03 18:42:25,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506820078] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:25,249 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:25,249 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:25,249 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482452037] [2022-03-03 18:42:25,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:25,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:25,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:25,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:25,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:25,249 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) [2022-03-03 18:42:25,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:25,341 INFO L93 Difference]: Finished difference Result 2305 states and 8327 transitions. [2022-03-03 18:42:25,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:25,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:25,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:25,346 INFO L225 Difference]: With dead ends: 2305 [2022-03-03 18:42:25,346 INFO L226 Difference]: Without dead ends: 2146 [2022-03-03 18:42:25,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:25,346 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 119 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:25,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 138 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:25,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2022-03-03 18:42:25,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 1202. [2022-03-03 18:42:25,363 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) [2022-03-03 18:42:25,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 4639 transitions. [2022-03-03 18:42:25,366 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 4639 transitions. Word has length 25 [2022-03-03 18:42:25,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:25,366 INFO L470 AbstractCegarLoop]: Abstraction has 1202 states and 4639 transitions. [2022-03-03 18:42:25,366 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) [2022-03-03 18:42:25,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 4639 transitions. [2022-03-03 18:42:25,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:25,367 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:25,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:25,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable565 [2022-03-03 18:42:25,368 INFO L402 AbstractCegarLoop]: === Iteration 567 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:25,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:25,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1215021419, now seen corresponding path program 562 times [2022-03-03 18:42:25,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:25,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774064095] [2022-03-03 18:42:25,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:25,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:25,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:25,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:25,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774064095] [2022-03-03 18:42:25,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774064095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:25,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:25,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:25,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93433997] [2022-03-03 18:42:25,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:25,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:25,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:25,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:25,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:25,486 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) [2022-03-03 18:42:25,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:25,589 INFO L93 Difference]: Finished difference Result 2193 states and 7990 transitions. [2022-03-03 18:42:25,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:25,590 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 [2022-03-03 18:42:25,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:25,594 INFO L225 Difference]: With dead ends: 2193 [2022-03-03 18:42:25,595 INFO L226 Difference]: Without dead ends: 2002 [2022-03-03 18:42:25,595 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 [2022-03-03 18:42:25,595 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 [2022-03-03 18:42:25,595 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] [2022-03-03 18:42:25,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2022-03-03 18:42:25,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1186. [2022-03-03 18:42:25,613 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) [2022-03-03 18:42:25,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 4583 transitions. [2022-03-03 18:42:25,615 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 4583 transitions. Word has length 25 [2022-03-03 18:42:25,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:25,615 INFO L470 AbstractCegarLoop]: Abstraction has 1186 states and 4583 transitions. [2022-03-03 18:42:25,615 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) [2022-03-03 18:42:25,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 4583 transitions. [2022-03-03 18:42:25,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:25,617 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:25,617 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] [2022-03-03 18:42:25,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable566 [2022-03-03 18:42:25,617 INFO L402 AbstractCegarLoop]: === Iteration 568 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:25,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:25,617 INFO L85 PathProgramCache]: Analyzing trace with hash 47302293, now seen corresponding path program 563 times [2022-03-03 18:42:25,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:25,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554779683] [2022-03-03 18:42:25,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:25,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:25,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:25,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:25,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554779683] [2022-03-03 18:42:25,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554779683] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:25,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:25,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:25,733 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615759440] [2022-03-03 18:42:25,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:25,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:25,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:25,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:25,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:25,733 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) [2022-03-03 18:42:25,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:25,839 INFO L93 Difference]: Finished difference Result 2341 states and 8459 transitions. [2022-03-03 18:42:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:25,839 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:25,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:25,843 INFO L225 Difference]: With dead ends: 2341 [2022-03-03 18:42:25,843 INFO L226 Difference]: Without dead ends: 2154 [2022-03-03 18:42:25,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:25,844 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 [2022-03-03 18:42:25,844 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] [2022-03-03 18:42:25,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2022-03-03 18:42:25,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 1210. [2022-03-03 18:42:25,861 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) [2022-03-03 18:42:25,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 4659 transitions. [2022-03-03 18:42:25,863 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 4659 transitions. Word has length 25 [2022-03-03 18:42:25,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:25,863 INFO L470 AbstractCegarLoop]: Abstraction has 1210 states and 4659 transitions. [2022-03-03 18:42:25,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:25,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 4659 transitions. [2022-03-03 18:42:25,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:25,865 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:25,865 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] [2022-03-03 18:42:25,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable567 [2022-03-03 18:42:25,865 INFO L402 AbstractCegarLoop]: === Iteration 569 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:25,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:25,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1344842253, now seen corresponding path program 564 times [2022-03-03 18:42:25,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:25,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792263338] [2022-03-03 18:42:25,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:25,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:25,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:25,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:25,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:25,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792263338] [2022-03-03 18:42:25,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792263338] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:25,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:25,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:25,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428990210] [2022-03-03 18:42:25,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:25,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:25,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:25,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:25,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:25,982 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) [2022-03-03 18:42:26,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:26,099 INFO L93 Difference]: Finished difference Result 2201 states and 8010 transitions. [2022-03-03 18:42:26,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:26,099 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 [2022-03-03 18:42:26,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:26,104 INFO L225 Difference]: With dead ends: 2201 [2022-03-03 18:42:26,104 INFO L226 Difference]: Without dead ends: 1994 [2022-03-03 18:42:26,104 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 [2022-03-03 18:42:26,104 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 [2022-03-03 18:42:26,104 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] [2022-03-03 18:42:26,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2022-03-03 18:42:26,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1178. [2022-03-03 18:42:26,120 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) [2022-03-03 18:42:26,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 4559 transitions. [2022-03-03 18:42:26,123 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 4559 transitions. Word has length 25 [2022-03-03 18:42:26,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:26,123 INFO L470 AbstractCegarLoop]: Abstraction has 1178 states and 4559 transitions. [2022-03-03 18:42:26,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:26,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 4559 transitions. [2022-03-03 18:42:26,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:26,124 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:26,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:26,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable568 [2022-03-03 18:42:26,125 INFO L402 AbstractCegarLoop]: === Iteration 570 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:26,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:26,125 INFO L85 PathProgramCache]: Analyzing trace with hash -630210991, now seen corresponding path program 565 times [2022-03-03 18:42:26,125 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:26,125 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130932100] [2022-03-03 18:42:26,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:26,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:26,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:26,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:26,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130932100] [2022-03-03 18:42:26,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130932100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:26,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:26,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:26,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139538867] [2022-03-03 18:42:26,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:26,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:26,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:26,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:26,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:26,243 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) [2022-03-03 18:42:26,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:26,345 INFO L93 Difference]: Finished difference Result 2285 states and 8247 transitions. [2022-03-03 18:42:26,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:26,346 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 [2022-03-03 18:42:26,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:26,350 INFO L225 Difference]: With dead ends: 2285 [2022-03-03 18:42:26,350 INFO L226 Difference]: Without dead ends: 2126 [2022-03-03 18:42:26,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:26,350 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 [2022-03-03 18:42:26,350 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] [2022-03-03 18:42:26,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2126 states. [2022-03-03 18:42:26,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2126 to 1178. [2022-03-03 18:42:26,366 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) [2022-03-03 18:42:26,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 4543 transitions. [2022-03-03 18:42:26,369 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 4543 transitions. Word has length 25 [2022-03-03 18:42:26,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:26,369 INFO L470 AbstractCegarLoop]: Abstraction has 1178 states and 4543 transitions. [2022-03-03 18:42:26,369 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) [2022-03-03 18:42:26,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 4543 transitions. [2022-03-03 18:42:26,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:26,370 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:26,371 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] [2022-03-03 18:42:26,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable569 [2022-03-03 18:42:26,371 INFO L402 AbstractCegarLoop]: === Iteration 571 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:26,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:26,371 INFO L85 PathProgramCache]: Analyzing trace with hash -660070669, now seen corresponding path program 566 times [2022-03-03 18:42:26,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:26,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402803460] [2022-03-03 18:42:26,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:26,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:26,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:26,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:26,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402803460] [2022-03-03 18:42:26,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402803460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:26,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:26,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:26,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092564550] [2022-03-03 18:42:26,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:26,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:26,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:26,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:26,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:26,489 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) [2022-03-03 18:42:26,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:26,597 INFO L93 Difference]: Finished difference Result 2309 states and 8323 transitions. [2022-03-03 18:42:26,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:26,597 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 [2022-03-03 18:42:26,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:26,602 INFO L225 Difference]: With dead ends: 2309 [2022-03-03 18:42:26,602 INFO L226 Difference]: Without dead ends: 2110 [2022-03-03 18:42:26,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:26,602 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 [2022-03-03 18:42:26,602 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] [2022-03-03 18:42:26,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2022-03-03 18:42:26,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 1162. [2022-03-03 18:42:26,619 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) [2022-03-03 18:42:26,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 4487 transitions. [2022-03-03 18:42:26,621 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 4487 transitions. Word has length 25 [2022-03-03 18:42:26,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:26,621 INFO L470 AbstractCegarLoop]: Abstraction has 1162 states and 4487 transitions. [2022-03-03 18:42:26,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:26,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 4487 transitions. [2022-03-03 18:42:26,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:26,623 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:26,623 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:26,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable570 [2022-03-03 18:42:26,623 INFO L402 AbstractCegarLoop]: === Iteration 572 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:26,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:26,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1111113037, now seen corresponding path program 567 times [2022-03-03 18:42:26,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:26,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670757427] [2022-03-03 18:42:26,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:26,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:26,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:26,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:26,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670757427] [2022-03-03 18:42:26,745 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670757427] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:26,745 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:26,745 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:26,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885410619] [2022-03-03 18:42:26,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:26,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:26,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:26,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:26,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:26,745 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) [2022-03-03 18:42:26,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:26,833 INFO L93 Difference]: Finished difference Result 2229 states and 8035 transitions. [2022-03-03 18:42:26,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:26,834 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:26,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:26,838 INFO L225 Difference]: With dead ends: 2229 [2022-03-03 18:42:26,838 INFO L226 Difference]: Without dead ends: 2070 [2022-03-03 18:42:26,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:26,838 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 140 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:26,838 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] [2022-03-03 18:42:26,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states. [2022-03-03 18:42:26,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 1130. [2022-03-03 18:42:26,854 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) [2022-03-03 18:42:26,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 4359 transitions. [2022-03-03 18:42:26,857 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 4359 transitions. Word has length 25 [2022-03-03 18:42:26,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:26,857 INFO L470 AbstractCegarLoop]: Abstraction has 1130 states and 4359 transitions. [2022-03-03 18:42:26,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:26,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 4359 transitions. [2022-03-03 18:42:26,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:26,858 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:26,858 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] [2022-03-03 18:42:26,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable571 [2022-03-03 18:42:26,859 INFO L402 AbstractCegarLoop]: === Iteration 573 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:26,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:26,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1056884339, now seen corresponding path program 568 times [2022-03-03 18:42:26,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:26,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282772619] [2022-03-03 18:42:26,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:26,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:26,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:26,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:26,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282772619] [2022-03-03 18:42:26,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282772619] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:26,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:26,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:26,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233955403] [2022-03-03 18:42:26,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:26,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:26,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:26,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:26,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:26,981 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) [2022-03-03 18:42:27,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:27,082 INFO L93 Difference]: Finished difference Result 2117 states and 7698 transitions. [2022-03-03 18:42:27,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:27,083 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:27,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:27,087 INFO L225 Difference]: With dead ends: 2117 [2022-03-03 18:42:27,087 INFO L226 Difference]: Without dead ends: 1926 [2022-03-03 18:42:27,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:27,087 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 103 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:27,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 139 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:27,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2022-03-03 18:42:27,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1114. [2022-03-03 18:42:27,103 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) [2022-03-03 18:42:27,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 4303 transitions. [2022-03-03 18:42:27,119 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 4303 transitions. Word has length 25 [2022-03-03 18:42:27,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:27,119 INFO L470 AbstractCegarLoop]: Abstraction has 1114 states and 4303 transitions. [2022-03-03 18:42:27,119 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) [2022-03-03 18:42:27,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 4303 transitions. [2022-03-03 18:42:27,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:27,121 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:27,121 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] [2022-03-03 18:42:27,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable572 [2022-03-03 18:42:27,121 INFO L402 AbstractCegarLoop]: === Iteration 574 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:27,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:27,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1754306197, now seen corresponding path program 569 times [2022-03-03 18:42:27,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:27,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780544000] [2022-03-03 18:42:27,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:27,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:27,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:27,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:27,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780544000] [2022-03-03 18:42:27,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780544000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:27,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:27,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:27,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744188500] [2022-03-03 18:42:27,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:27,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:27,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:27,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:27,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:27,238 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) [2022-03-03 18:42:27,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:27,344 INFO L93 Difference]: Finished difference Result 2133 states and 7770 transitions. [2022-03-03 18:42:27,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:27,345 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:27,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:27,348 INFO L225 Difference]: With dead ends: 2133 [2022-03-03 18:42:27,348 INFO L226 Difference]: Without dead ends: 1950 [2022-03-03 18:42:27,348 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 [2022-03-03 18:42:27,349 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 94 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:27,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 158 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:27,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2022-03-03 18:42:27,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1138. [2022-03-03 18:42:27,364 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) [2022-03-03 18:42:27,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 4379 transitions. [2022-03-03 18:42:27,366 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 4379 transitions. Word has length 25 [2022-03-03 18:42:27,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:27,366 INFO L470 AbstractCegarLoop]: Abstraction has 1138 states and 4379 transitions. [2022-03-03 18:42:27,366 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) [2022-03-03 18:42:27,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 4379 transitions. [2022-03-03 18:42:27,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:27,368 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:27,368 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] [2022-03-03 18:42:27,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable573 [2022-03-03 18:42:27,368 INFO L402 AbstractCegarLoop]: === Iteration 575 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:27,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:27,368 INFO L85 PathProgramCache]: Analyzing trace with hash -289030797, now seen corresponding path program 570 times [2022-03-03 18:42:27,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:27,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566305517] [2022-03-03 18:42:27,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:27,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:27,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:27,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:27,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566305517] [2022-03-03 18:42:27,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566305517] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:27,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:27,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:27,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617485108] [2022-03-03 18:42:27,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:27,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:27,486 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:27,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:27,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:27,486 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) [2022-03-03 18:42:27,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:27,585 INFO L93 Difference]: Finished difference Result 1949 states and 7157 transitions. [2022-03-03 18:42:27,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:27,586 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:27,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:27,589 INFO L225 Difference]: With dead ends: 1949 [2022-03-03 18:42:27,589 INFO L226 Difference]: Without dead ends: 1742 [2022-03-03 18:42:27,589 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 [2022-03-03 18:42:27,589 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 85 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:27,589 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] [2022-03-03 18:42:27,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2022-03-03 18:42:27,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1106. [2022-03-03 18:42:27,604 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) [2022-03-03 18:42:27,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 4279 transitions. [2022-03-03 18:42:27,606 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 4279 transitions. Word has length 25 [2022-03-03 18:42:27,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:27,606 INFO L470 AbstractCegarLoop]: Abstraction has 1106 states and 4279 transitions. [2022-03-03 18:42:27,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:27,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 4279 transitions. [2022-03-03 18:42:27,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:27,608 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:27,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:27,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable574 [2022-03-03 18:42:27,608 INFO L402 AbstractCegarLoop]: === Iteration 576 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:27,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:27,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1300549995, now seen corresponding path program 571 times [2022-03-03 18:42:27,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:27,609 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592119115] [2022-03-03 18:42:27,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:27,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:27,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:27,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:27,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592119115] [2022-03-03 18:42:27,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592119115] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:27,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:27,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:27,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725622969] [2022-03-03 18:42:27,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:27,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:27,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:27,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:27,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:27,724 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) [2022-03-03 18:42:27,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:27,822 INFO L93 Difference]: Finished difference Result 2181 states and 7970 transitions. [2022-03-03 18:42:27,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:27,822 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:27,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:27,826 INFO L225 Difference]: With dead ends: 2181 [2022-03-03 18:42:27,826 INFO L226 Difference]: Without dead ends: 1994 [2022-03-03 18:42:27,826 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 [2022-03-03 18:42:27,826 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 110 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:27,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 134 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:27,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2022-03-03 18:42:27,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1146. [2022-03-03 18:42:27,842 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) [2022-03-03 18:42:27,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 4423 transitions. [2022-03-03 18:42:27,845 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 4423 transitions. Word has length 25 [2022-03-03 18:42:27,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:27,845 INFO L470 AbstractCegarLoop]: Abstraction has 1146 states and 4423 transitions. [2022-03-03 18:42:27,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:27,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 4423 transitions. [2022-03-03 18:42:27,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:27,846 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:27,846 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] [2022-03-03 18:42:27,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable575 [2022-03-03 18:42:27,846 INFO L402 AbstractCegarLoop]: === Iteration 577 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:27,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:27,847 INFO L85 PathProgramCache]: Analyzing trace with hash 951080307, now seen corresponding path program 572 times [2022-03-03 18:42:27,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:27,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062586199] [2022-03-03 18:42:27,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:27,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:27,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:27,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:27,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062586199] [2022-03-03 18:42:27,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062586199] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:27,964 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:27,964 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:27,964 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105976180] [2022-03-03 18:42:27,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:27,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:27,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:27,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:27,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:27,965 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) [2022-03-03 18:42:28,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:28,062 INFO L93 Difference]: Finished difference Result 2177 states and 7930 transitions. [2022-03-03 18:42:28,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:28,063 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:28,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:28,067 INFO L225 Difference]: With dead ends: 2177 [2022-03-03 18:42:28,067 INFO L226 Difference]: Without dead ends: 1966 [2022-03-03 18:42:28,067 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 [2022-03-03 18:42:28,067 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:28,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 138 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:28,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2022-03-03 18:42:28,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1118. [2022-03-03 18:42:28,084 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) [2022-03-03 18:42:28,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 4323 transitions. [2022-03-03 18:42:28,086 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 4323 transitions. Word has length 25 [2022-03-03 18:42:28,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:28,086 INFO L470 AbstractCegarLoop]: Abstraction has 1118 states and 4323 transitions. [2022-03-03 18:42:28,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:28,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 4323 transitions. [2022-03-03 18:42:28,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:28,088 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:28,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:28,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable576 [2022-03-03 18:42:28,088 INFO L402 AbstractCegarLoop]: === Iteration 578 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:28,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:28,088 INFO L85 PathProgramCache]: Analyzing trace with hash -2147346957, now seen corresponding path program 573 times [2022-03-03 18:42:28,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:28,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286824188] [2022-03-03 18:42:28,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:28,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:28,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:28,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:28,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286824188] [2022-03-03 18:42:28,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286824188] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:28,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:28,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:28,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205350383] [2022-03-03 18:42:28,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:28,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:28,206 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:28,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:28,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:28,206 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) [2022-03-03 18:42:28,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:28,309 INFO L93 Difference]: Finished difference Result 2093 states and 7626 transitions. [2022-03-03 18:42:28,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:28,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:28,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:28,313 INFO L225 Difference]: With dead ends: 2093 [2022-03-03 18:42:28,313 INFO L226 Difference]: Without dead ends: 1906 [2022-03-03 18:42:28,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:28,313 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 97 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:28,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 141 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:28,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2022-03-03 18:42:28,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1142. [2022-03-03 18:42:28,329 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) [2022-03-03 18:42:28,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 4399 transitions. [2022-03-03 18:42:28,332 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 4399 transitions. Word has length 25 [2022-03-03 18:42:28,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:28,332 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 4399 transitions. [2022-03-03 18:42:28,332 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) [2022-03-03 18:42:28,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 4399 transitions. [2022-03-03 18:42:28,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:28,333 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:28,334 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] [2022-03-03 18:42:28,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable577 [2022-03-03 18:42:28,334 INFO L402 AbstractCegarLoop]: === Iteration 579 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:28,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:28,334 INFO L85 PathProgramCache]: Analyzing trace with hash -954880525, now seen corresponding path program 574 times [2022-03-03 18:42:28,334 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:28,334 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579720853] [2022-03-03 18:42:28,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:28,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:28,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:28,451 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:28,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579720853] [2022-03-03 18:42:28,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579720853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:28,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:28,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:28,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782638066] [2022-03-03 18:42:28,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:28,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:28,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:28,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:28,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:28,452 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) [2022-03-03 18:42:28,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:28,545 INFO L93 Difference]: Finished difference Result 1953 states and 7177 transitions. [2022-03-03 18:42:28,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:28,546 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:28,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:28,550 INFO L225 Difference]: With dead ends: 1953 [2022-03-03 18:42:28,550 INFO L226 Difference]: Without dead ends: 1754 [2022-03-03 18:42:28,550 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 [2022-03-03 18:42:28,550 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:28,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 128 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:28,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2022-03-03 18:42:28,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1118. [2022-03-03 18:42:28,565 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) [2022-03-03 18:42:28,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 4311 transitions. [2022-03-03 18:42:28,568 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 4311 transitions. Word has length 25 [2022-03-03 18:42:28,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:28,568 INFO L470 AbstractCegarLoop]: Abstraction has 1118 states and 4311 transitions. [2022-03-03 18:42:28,568 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) [2022-03-03 18:42:28,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 4311 transitions. [2022-03-03 18:42:28,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:28,569 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:28,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:28,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable578 [2022-03-03 18:42:28,569 INFO L402 AbstractCegarLoop]: === Iteration 580 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:28,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:28,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1164999343, now seen corresponding path program 575 times [2022-03-03 18:42:28,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:28,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967179834] [2022-03-03 18:42:28,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:28,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:28,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:28,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:28,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967179834] [2022-03-03 18:42:28,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967179834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:28,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:28,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:28,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620863789] [2022-03-03 18:42:28,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:28,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:28,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:28,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:28,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:28,690 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) [2022-03-03 18:42:28,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:28,787 INFO L93 Difference]: Finished difference Result 1881 states and 6913 transitions. [2022-03-03 18:42:28,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:28,787 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:28,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:28,791 INFO L225 Difference]: With dead ends: 1881 [2022-03-03 18:42:28,791 INFO L226 Difference]: Without dead ends: 1698 [2022-03-03 18:42:28,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:28,791 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 82 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:28,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 139 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:28,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2022-03-03 18:42:28,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1142. [2022-03-03 18:42:28,805 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) [2022-03-03 18:42:28,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 4387 transitions. [2022-03-03 18:42:28,808 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 4387 transitions. Word has length 25 [2022-03-03 18:42:28,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:28,808 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 4387 transitions. [2022-03-03 18:42:28,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:28,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 4387 transitions. [2022-03-03 18:42:28,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:28,809 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:28,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:28,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable579 [2022-03-03 18:42:28,809 INFO L402 AbstractCegarLoop]: === Iteration 581 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:28,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:28,810 INFO L85 PathProgramCache]: Analyzing trace with hash -83936717, now seen corresponding path program 576 times [2022-03-03 18:42:28,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:28,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697114190] [2022-03-03 18:42:28,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:28,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:28,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:28,931 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:28,931 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697114190] [2022-03-03 18:42:28,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697114190] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:28,931 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:28,931 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:28,931 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750066255] [2022-03-03 18:42:28,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:28,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:28,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:28,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:28,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:28,931 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) [2022-03-03 18:42:29,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:29,018 INFO L93 Difference]: Finished difference Result 1697 states and 6300 transitions. [2022-03-03 18:42:29,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:29,019 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 [2022-03-03 18:42:29,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:29,022 INFO L225 Difference]: With dead ends: 1697 [2022-03-03 18:42:29,022 INFO L226 Difference]: Without dead ends: 1482 [2022-03-03 18:42:29,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:29,022 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:29,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 123 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:29,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2022-03-03 18:42:29,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1102. [2022-03-03 18:42:29,035 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) [2022-03-03 18:42:29,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 4269 transitions. [2022-03-03 18:42:29,037 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 4269 transitions. Word has length 25 [2022-03-03 18:42:29,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:29,037 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 4269 transitions. [2022-03-03 18:42:29,037 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) [2022-03-03 18:42:29,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 4269 transitions. [2022-03-03 18:42:29,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:29,039 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:29,039 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] [2022-03-03 18:42:29,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable580 [2022-03-03 18:42:29,039 INFO L402 AbstractCegarLoop]: === Iteration 582 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:29,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:29,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1629748617, now seen corresponding path program 577 times [2022-03-03 18:42:29,039 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:29,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709328106] [2022-03-03 18:42:29,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:29,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:29,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:29,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:29,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:29,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709328106] [2022-03-03 18:42:29,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709328106] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:29,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:29,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:29,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913002009] [2022-03-03 18:42:29,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:29,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:29,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:29,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:29,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:29,161 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) [2022-03-03 18:42:29,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:29,259 INFO L93 Difference]: Finished difference Result 2267 states and 8325 transitions. [2022-03-03 18:42:29,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:29,259 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 [2022-03-03 18:42:29,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:29,263 INFO L225 Difference]: With dead ends: 2267 [2022-03-03 18:42:29,264 INFO L226 Difference]: Without dead ends: 2078 [2022-03-03 18:42:29,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:29,264 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:29,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 134 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:29,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2022-03-03 18:42:29,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1152. [2022-03-03 18:42:29,280 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) [2022-03-03 18:42:29,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 4458 transitions. [2022-03-03 18:42:29,283 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 4458 transitions. Word has length 25 [2022-03-03 18:42:29,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:29,283 INFO L470 AbstractCegarLoop]: Abstraction has 1152 states and 4458 transitions. [2022-03-03 18:42:29,283 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) [2022-03-03 18:42:29,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 4458 transitions. [2022-03-03 18:42:29,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:29,284 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:29,284 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] [2022-03-03 18:42:29,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable581 [2022-03-03 18:42:29,284 INFO L402 AbstractCegarLoop]: === Iteration 583 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:29,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:29,285 INFO L85 PathProgramCache]: Analyzing trace with hash 621881685, now seen corresponding path program 578 times [2022-03-03 18:42:29,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:29,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569310411] [2022-03-03 18:42:29,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:29,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:29,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:29,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:29,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569310411] [2022-03-03 18:42:29,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569310411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:29,400 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:29,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:29,400 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868004931] [2022-03-03 18:42:29,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:29,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:29,400 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:29,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:29,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:29,401 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) [2022-03-03 18:42:29,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:29,503 INFO L93 Difference]: Finished difference Result 2265 states and 8290 transitions. [2022-03-03 18:42:29,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:29,503 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 [2022-03-03 18:42:29,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:29,507 INFO L225 Difference]: With dead ends: 2265 [2022-03-03 18:42:29,507 INFO L226 Difference]: Without dead ends: 2048 [2022-03-03 18:42:29,507 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 [2022-03-03 18:42:29,507 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 106 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:29,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 145 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:29,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2022-03-03 18:42:29,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 1122. [2022-03-03 18:42:29,525 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) [2022-03-03 18:42:29,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 4351 transitions. [2022-03-03 18:42:29,528 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 4351 transitions. Word has length 25 [2022-03-03 18:42:29,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:29,528 INFO L470 AbstractCegarLoop]: Abstraction has 1122 states and 4351 transitions. [2022-03-03 18:42:29,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:29,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 4351 transitions. [2022-03-03 18:42:29,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:29,529 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:29,529 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] [2022-03-03 18:42:29,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable582 [2022-03-03 18:42:29,530 INFO L402 AbstractCegarLoop]: === Iteration 584 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:29,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:29,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1818421717, now seen corresponding path program 579 times [2022-03-03 18:42:29,530 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:29,530 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319340857] [2022-03-03 18:42:29,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:29,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:29,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:29,646 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:29,646 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319340857] [2022-03-03 18:42:29,646 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319340857] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:29,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:29,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:29,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326321842] [2022-03-03 18:42:29,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:29,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:29,646 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:29,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:29,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:29,646 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) [2022-03-03 18:42:29,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:29,747 INFO L93 Difference]: Finished difference Result 2261 states and 8292 transitions. [2022-03-03 18:42:29,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:29,747 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 [2022-03-03 18:42:29,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:29,752 INFO L225 Difference]: With dead ends: 2261 [2022-03-03 18:42:29,752 INFO L226 Difference]: Without dead ends: 2072 [2022-03-03 18:42:29,752 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 [2022-03-03 18:42:29,752 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 94 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:29,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 146 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:29,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2072 states. [2022-03-03 18:42:29,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2072 to 1150. [2022-03-03 18:42:29,768 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) [2022-03-03 18:42:29,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 4439 transitions. [2022-03-03 18:42:29,771 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 4439 transitions. Word has length 25 [2022-03-03 18:42:29,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:29,771 INFO L470 AbstractCegarLoop]: Abstraction has 1150 states and 4439 transitions. [2022-03-03 18:42:29,771 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) [2022-03-03 18:42:29,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 4439 transitions. [2022-03-03 18:42:29,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:29,773 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:29,773 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] [2022-03-03 18:42:29,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable583 [2022-03-03 18:42:29,773 INFO L402 AbstractCegarLoop]: === Iteration 585 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:29,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:29,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1284079147, now seen corresponding path program 580 times [2022-03-03 18:42:29,773 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:29,773 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699391129] [2022-03-03 18:42:29,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:29,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:29,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:29,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:29,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699391129] [2022-03-03 18:42:29,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699391129] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:29,888 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:29,888 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:29,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402559435] [2022-03-03 18:42:29,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:29,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:29,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:29,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:29,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:29,889 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) [2022-03-03 18:42:29,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:29,983 INFO L93 Difference]: Finished difference Result 2255 states and 8247 transitions. [2022-03-03 18:42:29,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:29,983 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:29,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:29,988 INFO L225 Difference]: With dead ends: 2255 [2022-03-03 18:42:29,988 INFO L226 Difference]: Without dead ends: 2044 [2022-03-03 18:42:29,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:29,988 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:29,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 126 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:29,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2022-03-03 18:42:30,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 1122. [2022-03-03 18:42:30,005 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) [2022-03-03 18:42:30,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 4337 transitions. [2022-03-03 18:42:30,007 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 4337 transitions. Word has length 25 [2022-03-03 18:42:30,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:30,007 INFO L470 AbstractCegarLoop]: Abstraction has 1122 states and 4337 transitions. [2022-03-03 18:42:30,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:30,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 4337 transitions. [2022-03-03 18:42:30,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:30,009 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:30,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:30,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable584 [2022-03-03 18:42:30,009 INFO L402 AbstractCegarLoop]: === Iteration 586 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:30,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:30,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1494197965, now seen corresponding path program 581 times [2022-03-03 18:42:30,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:30,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492858567] [2022-03-03 18:42:30,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:30,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:30,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:30,126 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:30,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492858567] [2022-03-03 18:42:30,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492858567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:30,126 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:30,126 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:30,126 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155126707] [2022-03-03 18:42:30,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:30,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:30,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:30,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:30,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:30,127 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) [2022-03-03 18:42:30,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:30,218 INFO L93 Difference]: Finished difference Result 2257 states and 8268 transitions. [2022-03-03 18:42:30,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:30,218 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:30,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:30,223 INFO L225 Difference]: With dead ends: 2257 [2022-03-03 18:42:30,223 INFO L226 Difference]: Without dead ends: 2070 [2022-03-03 18:42:30,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:30,223 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:30,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 125 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:30,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states. [2022-03-03 18:42:30,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 1150. [2022-03-03 18:42:30,239 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) [2022-03-03 18:42:30,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 4425 transitions. [2022-03-03 18:42:30,241 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 4425 transitions. Word has length 25 [2022-03-03 18:42:30,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:30,241 INFO L470 AbstractCegarLoop]: Abstraction has 1150 states and 4425 transitions. [2022-03-03 18:42:30,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:30,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 4425 transitions. [2022-03-03 18:42:30,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:30,243 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:30,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:30,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable585 [2022-03-03 18:42:30,243 INFO L402 AbstractCegarLoop]: === Iteration 587 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:30,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:30,243 INFO L85 PathProgramCache]: Analyzing trace with hash -413135339, now seen corresponding path program 582 times [2022-03-03 18:42:30,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:30,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796593953] [2022-03-03 18:42:30,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:30,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:30,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:30,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:30,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796593953] [2022-03-03 18:42:30,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796593953] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:30,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:30,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:30,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173882088] [2022-03-03 18:42:30,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:30,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:30,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:30,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:30,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:30,361 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) [2022-03-03 18:42:30,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:30,468 INFO L93 Difference]: Finished difference Result 2253 states and 8228 transitions. [2022-03-03 18:42:30,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:30,468 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 [2022-03-03 18:42:30,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:30,472 INFO L225 Difference]: With dead ends: 2253 [2022-03-03 18:42:30,472 INFO L226 Difference]: Without dead ends: 2028 [2022-03-03 18:42:30,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:30,472 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 88 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:30,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 152 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:30,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-03-03 18:42:30,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 1108. [2022-03-03 18:42:30,488 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) [2022-03-03 18:42:30,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 4294 transitions. [2022-03-03 18:42:30,490 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 4294 transitions. Word has length 25 [2022-03-03 18:42:30,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:30,490 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 4294 transitions. [2022-03-03 18:42:30,490 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) [2022-03-03 18:42:30,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 4294 transitions. [2022-03-03 18:42:30,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:30,492 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:30,492 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] [2022-03-03 18:42:30,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable586 [2022-03-03 18:42:30,492 INFO L402 AbstractCegarLoop]: === Iteration 588 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:30,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:30,492 INFO L85 PathProgramCache]: Analyzing trace with hash 642157141, now seen corresponding path program 583 times [2022-03-03 18:42:30,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:30,492 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220186075] [2022-03-03 18:42:30,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:30,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:30,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:30,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:30,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220186075] [2022-03-03 18:42:30,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220186075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:30,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:30,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:30,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684790716] [2022-03-03 18:42:30,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:30,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:30,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:30,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:30,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:30,609 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) [2022-03-03 18:42:30,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:30,706 INFO L93 Difference]: Finished difference Result 2223 states and 8131 transitions. [2022-03-03 18:42:30,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:30,707 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:30,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:30,710 INFO L225 Difference]: With dead ends: 2223 [2022-03-03 18:42:30,710 INFO L226 Difference]: Without dead ends: 2034 [2022-03-03 18:42:30,711 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 [2022-03-03 18:42:30,711 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:30,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 134 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:30,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2034 states. [2022-03-03 18:42:30,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2034 to 1150. [2022-03-03 18:42:30,727 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) [2022-03-03 18:42:30,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 4443 transitions. [2022-03-03 18:42:30,729 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 4443 transitions. Word has length 25 [2022-03-03 18:42:30,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:30,729 INFO L470 AbstractCegarLoop]: Abstraction has 1150 states and 4443 transitions. [2022-03-03 18:42:30,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:30,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 4443 transitions. [2022-03-03 18:42:30,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:30,731 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:30,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:30,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable587 [2022-03-03 18:42:30,731 INFO L402 AbstractCegarLoop]: === Iteration 589 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:30,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:30,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1401179853, now seen corresponding path program 584 times [2022-03-03 18:42:30,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:30,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136082416] [2022-03-03 18:42:30,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:30,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:30,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:30,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:30,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136082416] [2022-03-03 18:42:30,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136082416] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:30,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:30,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:30,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719040048] [2022-03-03 18:42:30,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:30,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:30,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:30,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:30,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:30,873 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) [2022-03-03 18:42:31,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:31,002 INFO L93 Difference]: Finished difference Result 2221 states and 8096 transitions. [2022-03-03 18:42:31,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:31,002 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:31,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:31,008 INFO L225 Difference]: With dead ends: 2221 [2022-03-03 18:42:31,008 INFO L226 Difference]: Without dead ends: 2004 [2022-03-03 18:42:31,008 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 [2022-03-03 18:42:31,008 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 [2022-03-03 18:42:31,008 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] [2022-03-03 18:42:31,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2022-03-03 18:42:31,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1120. [2022-03-03 18:42:31,031 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) [2022-03-03 18:42:31,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4338 transitions. [2022-03-03 18:42:31,035 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4338 transitions. Word has length 25 [2022-03-03 18:42:31,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:31,035 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4338 transitions. [2022-03-03 18:42:31,035 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) [2022-03-03 18:42:31,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4338 transitions. [2022-03-03 18:42:31,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:31,037 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:31,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:31,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable588 [2022-03-03 18:42:31,037 INFO L402 AbstractCegarLoop]: === Iteration 590 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:31,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:31,037 INFO L85 PathProgramCache]: Analyzing trace with hash -153869739, now seen corresponding path program 585 times [2022-03-03 18:42:31,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:31,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581767537] [2022-03-03 18:42:31,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:31,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:31,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:31,193 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:31,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581767537] [2022-03-03 18:42:31,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581767537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:31,193 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:31,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:31,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523313199] [2022-03-03 18:42:31,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:31,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:31,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:31,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:31,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:31,194 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) [2022-03-03 18:42:31,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:31,292 INFO L93 Difference]: Finished difference Result 2143 states and 7835 transitions. [2022-03-03 18:42:31,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:31,292 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:31,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:31,296 INFO L225 Difference]: With dead ends: 2143 [2022-03-03 18:42:31,296 INFO L226 Difference]: Without dead ends: 1954 [2022-03-03 18:42:31,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:31,297 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 [2022-03-03 18:42:31,297 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] [2022-03-03 18:42:31,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2022-03-03 18:42:31,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1144. [2022-03-03 18:42:31,312 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) [2022-03-03 18:42:31,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4414 transitions. [2022-03-03 18:42:31,314 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4414 transitions. Word has length 25 [2022-03-03 18:42:31,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:31,314 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4414 transitions. [2022-03-03 18:42:31,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:31,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4414 transitions. [2022-03-03 18:42:31,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:31,316 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:31,316 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] [2022-03-03 18:42:31,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable589 [2022-03-03 18:42:31,316 INFO L402 AbstractCegarLoop]: === Iteration 591 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:31,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:31,316 INFO L85 PathProgramCache]: Analyzing trace with hash 401918549, now seen corresponding path program 586 times [2022-03-03 18:42:31,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:31,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20996248] [2022-03-03 18:42:31,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:31,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:31,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:31,429 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:31,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20996248] [2022-03-03 18:42:31,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20996248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:31,429 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:31,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:31,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170105669] [2022-03-03 18:42:31,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:31,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:31,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:31,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:31,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:31,430 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) [2022-03-03 18:42:31,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:31,534 INFO L93 Difference]: Finished difference Result 2001 states and 7381 transitions. [2022-03-03 18:42:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:31,534 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 [2022-03-03 18:42:31,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:31,538 INFO L225 Difference]: With dead ends: 2001 [2022-03-03 18:42:31,538 INFO L226 Difference]: Without dead ends: 1802 [2022-03-03 18:42:31,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:31,538 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 91 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:31,538 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] [2022-03-03 18:42:31,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2022-03-03 18:42:31,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1120. [2022-03-03 18:42:31,553 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) [2022-03-03 18:42:31,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4326 transitions. [2022-03-03 18:42:31,556 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4326 transitions. Word has length 25 [2022-03-03 18:42:31,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:31,556 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4326 transitions. [2022-03-03 18:42:31,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:31,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4326 transitions. [2022-03-03 18:42:31,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:31,557 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:31,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:31,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable590 [2022-03-03 18:42:31,558 INFO L402 AbstractCegarLoop]: === Iteration 592 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:31,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:31,558 INFO L85 PathProgramCache]: Analyzing trace with hash 828477875, now seen corresponding path program 587 times [2022-03-03 18:42:31,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:31,558 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576458628] [2022-03-03 18:42:31,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:31,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:31,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:31,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:31,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576458628] [2022-03-03 18:42:31,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576458628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:31,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:31,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:31,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013283807] [2022-03-03 18:42:31,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:31,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:31,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:31,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:31,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:31,673 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) [2022-03-03 18:42:31,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:31,769 INFO L93 Difference]: Finished difference Result 2141 states and 7818 transitions. [2022-03-03 18:42:31,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:31,769 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 [2022-03-03 18:42:31,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:31,773 INFO L225 Difference]: With dead ends: 2141 [2022-03-03 18:42:31,774 INFO L226 Difference]: Without dead ends: 1954 [2022-03-03 18:42:31,774 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 [2022-03-03 18:42:31,774 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 103 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-03-03 18:42:31,774 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] [2022-03-03 18:42:31,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2022-03-03 18:42:31,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1144. [2022-03-03 18:42:31,790 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) [2022-03-03 18:42:31,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4402 transitions. [2022-03-03 18:42:31,793 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4402 transitions. Word has length 25 [2022-03-03 18:42:31,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:31,793 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4402 transitions. [2022-03-03 18:42:31,793 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) [2022-03-03 18:42:31,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4402 transitions. [2022-03-03 18:42:31,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:31,794 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:31,795 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] [2022-03-03 18:42:31,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable591 [2022-03-03 18:42:31,795 INFO L402 AbstractCegarLoop]: === Iteration 593 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:31,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:31,795 INFO L85 PathProgramCache]: Analyzing trace with hash 621669909, now seen corresponding path program 588 times [2022-03-03 18:42:31,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:31,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024276729] [2022-03-03 18:42:31,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:31,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:31,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:31,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024276729] [2022-03-03 18:42:31,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024276729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:31,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:31,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:31,911 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138287153] [2022-03-03 18:42:31,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:31,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:31,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:31,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:31,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:31,911 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) [2022-03-03 18:42:32,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:32,012 INFO L93 Difference]: Finished difference Result 2001 states and 7369 transitions. [2022-03-03 18:42:32,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:32,012 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:32,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:32,016 INFO L225 Difference]: With dead ends: 2001 [2022-03-03 18:42:32,016 INFO L226 Difference]: Without dead ends: 1790 [2022-03-03 18:42:32,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:32,016 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 89 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:32,016 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] [2022-03-03 18:42:32,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2022-03-03 18:42:32,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1108. [2022-03-03 18:42:32,031 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) [2022-03-03 18:42:32,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 4288 transitions. [2022-03-03 18:42:32,033 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 4288 transitions. Word has length 25 [2022-03-03 18:42:32,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:32,033 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 4288 transitions. [2022-03-03 18:42:32,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:32,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 4288 transitions. [2022-03-03 18:42:32,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:32,035 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:32,035 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] [2022-03-03 18:42:32,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable592 [2022-03-03 18:42:32,035 INFO L402 AbstractCegarLoop]: === Iteration 594 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:32,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:32,035 INFO L85 PathProgramCache]: Analyzing trace with hash -214590925, now seen corresponding path program 589 times [2022-03-03 18:42:32,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:32,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517283003] [2022-03-03 18:42:32,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:32,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:32,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:32,151 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:32,151 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517283003] [2022-03-03 18:42:32,151 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517283003] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:32,151 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:32,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:32,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147280861] [2022-03-03 18:42:32,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:32,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:32,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:32,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:32,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:32,151 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) [2022-03-03 18:42:32,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:32,249 INFO L93 Difference]: Finished difference Result 2115 states and 7713 transitions. [2022-03-03 18:42:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:32,249 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 [2022-03-03 18:42:32,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:32,253 INFO L225 Difference]: With dead ends: 2115 [2022-03-03 18:42:32,254 INFO L226 Difference]: Without dead ends: 1926 [2022-03-03 18:42:32,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:32,254 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:32,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 125 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:32,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2022-03-03 18:42:32,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1148. [2022-03-03 18:42:32,270 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) [2022-03-03 18:42:32,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 4432 transitions. [2022-03-03 18:42:32,272 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 4432 transitions. Word has length 25 [2022-03-03 18:42:32,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:32,273 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 4432 transitions. [2022-03-03 18:42:32,273 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) [2022-03-03 18:42:32,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 4432 transitions. [2022-03-03 18:42:32,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:32,274 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:32,274 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] [2022-03-03 18:42:32,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable593 [2022-03-03 18:42:32,274 INFO L402 AbstractCegarLoop]: === Iteration 595 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:32,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:32,275 INFO L85 PathProgramCache]: Analyzing trace with hash 977875507, now seen corresponding path program 590 times [2022-03-03 18:42:32,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:32,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337114237] [2022-03-03 18:42:32,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:32,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:32,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:32,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:32,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337114237] [2022-03-03 18:42:32,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337114237] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:32,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:32,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:32,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656525557] [2022-03-03 18:42:32,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:32,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:32,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:32,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:32,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:32,391 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) [2022-03-03 18:42:32,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:32,487 INFO L93 Difference]: Finished difference Result 2109 states and 7668 transitions. [2022-03-03 18:42:32,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:32,487 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 [2022-03-03 18:42:32,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:32,491 INFO L225 Difference]: With dead ends: 2109 [2022-03-03 18:42:32,491 INFO L226 Difference]: Without dead ends: 1898 [2022-03-03 18:42:32,491 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 [2022-03-03 18:42:32,491 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:32,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 127 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:32,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2022-03-03 18:42:32,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1120. [2022-03-03 18:42:32,506 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) [2022-03-03 18:42:32,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4332 transitions. [2022-03-03 18:42:32,509 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4332 transitions. Word has length 25 [2022-03-03 18:42:32,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:32,509 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4332 transitions. [2022-03-03 18:42:32,509 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) [2022-03-03 18:42:32,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4332 transitions. [2022-03-03 18:42:32,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:32,510 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:32,510 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] [2022-03-03 18:42:32,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable594 [2022-03-03 18:42:32,511 INFO L402 AbstractCegarLoop]: === Iteration 596 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:32,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:32,511 INFO L85 PathProgramCache]: Analyzing trace with hash -695492971, now seen corresponding path program 591 times [2022-03-03 18:42:32,511 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:32,511 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193480252] [2022-03-03 18:42:32,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:32,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:32,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:32,630 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:32,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193480252] [2022-03-03 18:42:32,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193480252] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:32,630 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:32,630 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:32,630 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182668393] [2022-03-03 18:42:32,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:32,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:32,630 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:32,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:32,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:32,630 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) [2022-03-03 18:42:32,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:32,740 INFO L93 Difference]: Finished difference Result 2017 states and 7336 transitions. [2022-03-03 18:42:32,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:32,741 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:32,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:32,744 INFO L225 Difference]: With dead ends: 2017 [2022-03-03 18:42:32,744 INFO L226 Difference]: Without dead ends: 1828 [2022-03-03 18:42:32,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:32,745 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 98 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:32,745 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] [2022-03-03 18:42:32,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2022-03-03 18:42:32,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 1144. [2022-03-03 18:42:32,760 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) [2022-03-03 18:42:32,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4408 transitions. [2022-03-03 18:42:32,762 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4408 transitions. Word has length 25 [2022-03-03 18:42:32,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:32,762 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4408 transitions. [2022-03-03 18:42:32,762 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) [2022-03-03 18:42:32,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4408 transitions. [2022-03-03 18:42:32,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:32,764 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:32,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:32,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable595 [2022-03-03 18:42:32,764 INFO L402 AbstractCegarLoop]: === Iteration 597 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:32,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:32,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1621142989, now seen corresponding path program 592 times [2022-03-03 18:42:32,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:32,764 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666880545] [2022-03-03 18:42:32,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:32,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:32,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:32,882 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:32,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666880545] [2022-03-03 18:42:32,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666880545] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:32,882 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:32,882 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:32,882 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17097914] [2022-03-03 18:42:32,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:32,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:32,883 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:32,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:32,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:32,883 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) [2022-03-03 18:42:32,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:32,986 INFO L93 Difference]: Finished difference Result 1875 states and 6882 transitions. [2022-03-03 18:42:32,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:32,986 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:32,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:32,989 INFO L225 Difference]: With dead ends: 1875 [2022-03-03 18:42:32,989 INFO L226 Difference]: Without dead ends: 1676 [2022-03-03 18:42:32,989 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 [2022-03-03 18:42:32,990 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 90 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:32,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 146 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:32,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2022-03-03 18:42:33,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1120. [2022-03-03 18:42:33,004 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) [2022-03-03 18:42:33,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4320 transitions. [2022-03-03 18:42:33,006 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4320 transitions. Word has length 25 [2022-03-03 18:42:33,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:33,006 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4320 transitions. [2022-03-03 18:42:33,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:33,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4320 transitions. [2022-03-03 18:42:33,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:33,008 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:33,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:33,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable596 [2022-03-03 18:42:33,008 INFO L402 AbstractCegarLoop]: === Iteration 598 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:33,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:33,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1780491725, now seen corresponding path program 593 times [2022-03-03 18:42:33,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:33,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766423042] [2022-03-03 18:42:33,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:33,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:33,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:33,126 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:33,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766423042] [2022-03-03 18:42:33,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766423042] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:33,126 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:33,126 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:33,126 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568510672] [2022-03-03 18:42:33,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:33,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:33,127 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:33,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:33,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:33,127 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) [2022-03-03 18:42:33,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:33,239 INFO L93 Difference]: Finished difference Result 1883 states and 6922 transitions. [2022-03-03 18:42:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:33,239 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:33,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:33,242 INFO L225 Difference]: With dead ends: 1883 [2022-03-03 18:42:33,242 INFO L226 Difference]: Without dead ends: 1700 [2022-03-03 18:42:33,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:33,243 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 90 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:33,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 145 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:33,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2022-03-03 18:42:33,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1144. [2022-03-03 18:42:33,263 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) [2022-03-03 18:42:33,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4396 transitions. [2022-03-03 18:42:33,266 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4396 transitions. Word has length 25 [2022-03-03 18:42:33,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:33,266 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4396 transitions. [2022-03-03 18:42:33,266 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) [2022-03-03 18:42:33,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4396 transitions. [2022-03-03 18:42:33,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:33,268 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:33,268 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] [2022-03-03 18:42:33,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable597 [2022-03-03 18:42:33,269 INFO L402 AbstractCegarLoop]: === Iteration 599 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:33,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:33,269 INFO L85 PathProgramCache]: Analyzing trace with hash -699429099, now seen corresponding path program 594 times [2022-03-03 18:42:33,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:33,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767284445] [2022-03-03 18:42:33,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:33,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:33,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:33,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:33,386 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:33,386 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767284445] [2022-03-03 18:42:33,386 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767284445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:33,386 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:33,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:33,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657052963] [2022-03-03 18:42:33,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:33,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:33,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:33,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:33,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:33,386 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) [2022-03-03 18:42:33,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:33,482 INFO L93 Difference]: Finished difference Result 1699 states and 6309 transitions. [2022-03-03 18:42:33,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:33,482 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 [2022-03-03 18:42:33,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:33,485 INFO L225 Difference]: With dead ends: 1699 [2022-03-03 18:42:33,485 INFO L226 Difference]: Without dead ends: 1488 [2022-03-03 18:42:33,485 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 [2022-03-03 18:42:33,486 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:33,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 138 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:33,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-03-03 18:42:33,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1108. [2022-03-03 18:42:33,501 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) [2022-03-03 18:42:33,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 4282 transitions. [2022-03-03 18:42:33,504 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 4282 transitions. Word has length 25 [2022-03-03 18:42:33,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:33,504 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 4282 transitions. [2022-03-03 18:42:33,504 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) [2022-03-03 18:42:33,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 4282 transitions. [2022-03-03 18:42:33,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:33,505 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:33,505 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] [2022-03-03 18:42:33,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable598 [2022-03-03 18:42:33,505 INFO L402 AbstractCegarLoop]: === Iteration 600 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:33,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:33,506 INFO L85 PathProgramCache]: Analyzing trace with hash 757805585, now seen corresponding path program 595 times [2022-03-03 18:42:33,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:33,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512712914] [2022-03-03 18:42:33,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:33,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:33,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:33,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:33,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512712914] [2022-03-03 18:42:33,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512712914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:33,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:33,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:33,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848887038] [2022-03-03 18:42:33,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:33,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:33,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:33,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:33,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:33,621 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) [2022-03-03 18:42:33,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:33,710 INFO L93 Difference]: Finished difference Result 1803 states and 6620 transitions. [2022-03-03 18:42:33,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:33,711 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 [2022-03-03 18:42:33,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:33,714 INFO L225 Difference]: With dead ends: 1803 [2022-03-03 18:42:33,714 INFO L226 Difference]: Without dead ends: 1616 [2022-03-03 18:42:33,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:33,715 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:33,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 127 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:33,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2022-03-03 18:42:33,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1148. [2022-03-03 18:42:33,729 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) [2022-03-03 18:42:33,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 4426 transitions. [2022-03-03 18:42:33,732 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 4426 transitions. Word has length 25 [2022-03-03 18:42:33,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:33,732 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 4426 transitions. [2022-03-03 18:42:33,732 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) [2022-03-03 18:42:33,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 4426 transitions. [2022-03-03 18:42:33,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:33,733 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:33,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:33,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable599 [2022-03-03 18:42:33,733 INFO L402 AbstractCegarLoop]: === Iteration 601 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:33,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:33,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1838868211, now seen corresponding path program 596 times [2022-03-03 18:42:33,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:33,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069315676] [2022-03-03 18:42:33,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:33,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:33,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:33,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:33,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069315676] [2022-03-03 18:42:33,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069315676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:33,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:33,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:33,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428759632] [2022-03-03 18:42:33,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:33,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:33,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:33,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:33,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:33,853 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) [2022-03-03 18:42:33,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:33,946 INFO L93 Difference]: Finished difference Result 1799 states and 6580 transitions. [2022-03-03 18:42:33,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:33,946 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 [2022-03-03 18:42:33,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:33,949 INFO L225 Difference]: With dead ends: 1799 [2022-03-03 18:42:33,949 INFO L226 Difference]: Without dead ends: 1588 [2022-03-03 18:42:33,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:33,949 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:33,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 127 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:33,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2022-03-03 18:42:33,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1120. [2022-03-03 18:42:33,964 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) [2022-03-03 18:42:33,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4326 transitions. [2022-03-03 18:42:33,966 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4326 transitions. Word has length 25 [2022-03-03 18:42:33,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:33,966 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4326 transitions. [2022-03-03 18:42:33,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:33,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4326 transitions. [2022-03-03 18:42:33,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:33,967 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:33,968 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] [2022-03-03 18:42:33,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable600 [2022-03-03 18:42:33,968 INFO L402 AbstractCegarLoop]: === Iteration 602 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:33,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:33,968 INFO L85 PathProgramCache]: Analyzing trace with hash 276903539, now seen corresponding path program 597 times [2022-03-03 18:42:33,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:33,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095955603] [2022-03-03 18:42:33,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:33,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:34,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:34,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:34,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095955603] [2022-03-03 18:42:34,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095955603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:34,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:34,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:34,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969511154] [2022-03-03 18:42:34,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:34,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:34,087 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:34,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:34,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:34,087 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) [2022-03-03 18:42:34,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:34,181 INFO L93 Difference]: Finished difference Result 1715 states and 6276 transitions. [2022-03-03 18:42:34,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:34,181 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 [2022-03-03 18:42:34,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:34,185 INFO L225 Difference]: With dead ends: 1715 [2022-03-03 18:42:34,185 INFO L226 Difference]: Without dead ends: 1528 [2022-03-03 18:42:34,185 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 [2022-03-03 18:42:34,185 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:34,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 131 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:34,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2022-03-03 18:42:34,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1144. [2022-03-03 18:42:34,199 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) [2022-03-03 18:42:34,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4402 transitions. [2022-03-03 18:42:34,201 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4402 transitions. Word has length 25 [2022-03-03 18:42:34,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:34,201 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4402 transitions. [2022-03-03 18:42:34,201 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) [2022-03-03 18:42:34,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4402 transitions. [2022-03-03 18:42:34,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:34,203 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:34,203 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] [2022-03-03 18:42:34,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable601 [2022-03-03 18:42:34,203 INFO L402 AbstractCegarLoop]: === Iteration 603 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:34,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:34,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1411342733, now seen corresponding path program 598 times [2022-03-03 18:42:34,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:34,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846212135] [2022-03-03 18:42:34,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:34,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:34,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:34,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:34,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846212135] [2022-03-03 18:42:34,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846212135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:34,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:34,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:34,324 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236133521] [2022-03-03 18:42:34,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:34,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:34,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:34,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:34,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:34,324 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) [2022-03-03 18:42:34,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:34,412 INFO L93 Difference]: Finished difference Result 1575 states and 5827 transitions. [2022-03-03 18:42:34,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:34,412 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 [2022-03-03 18:42:34,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:34,415 INFO L225 Difference]: With dead ends: 1575 [2022-03-03 18:42:34,415 INFO L226 Difference]: Without dead ends: 1376 [2022-03-03 18:42:34,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:34,415 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 [2022-03-03 18:42:34,415 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] [2022-03-03 18:42:34,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2022-03-03 18:42:34,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1120. [2022-03-03 18:42:34,428 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) [2022-03-03 18:42:34,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4314 transitions. [2022-03-03 18:42:34,430 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4314 transitions. Word has length 25 [2022-03-03 18:42:34,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:34,430 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4314 transitions. [2022-03-03 18:42:34,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:34,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4314 transitions. [2022-03-03 18:42:34,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:34,432 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:34,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:34,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable602 [2022-03-03 18:42:34,432 INFO L402 AbstractCegarLoop]: === Iteration 604 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:34,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:34,432 INFO L85 PathProgramCache]: Analyzing trace with hash 664908501, now seen corresponding path program 599 times [2022-03-03 18:42:34,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:34,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827497488] [2022-03-03 18:42:34,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:34,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:34,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:34,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:34,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827497488] [2022-03-03 18:42:34,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827497488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:34,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:34,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:34,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010258175] [2022-03-03 18:42:34,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:34,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:34,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:34,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:34,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:34,550 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) [2022-03-03 18:42:34,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:34,631 INFO L93 Difference]: Finished difference Result 1503 states and 5563 transitions. [2022-03-03 18:42:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:34,632 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:34,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:34,634 INFO L225 Difference]: With dead ends: 1503 [2022-03-03 18:42:34,634 INFO L226 Difference]: Without dead ends: 1320 [2022-03-03 18:42:34,634 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 [2022-03-03 18:42:34,635 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 [2022-03-03 18:42:34,635 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] [2022-03-03 18:42:34,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2022-03-03 18:42:34,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1144. [2022-03-03 18:42:34,650 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) [2022-03-03 18:42:34,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4390 transitions. [2022-03-03 18:42:34,652 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4390 transitions. Word has length 25 [2022-03-03 18:42:34,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:34,652 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4390 transitions. [2022-03-03 18:42:34,652 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) [2022-03-03 18:42:34,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4390 transitions. [2022-03-03 18:42:34,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:34,654 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:34,654 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] [2022-03-03 18:42:34,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable603 [2022-03-03 18:42:34,654 INFO L402 AbstractCegarLoop]: === Iteration 605 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:34,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:34,654 INFO L85 PathProgramCache]: Analyzing trace with hash -181888461, now seen corresponding path program 600 times [2022-03-03 18:42:34,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:34,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649801345] [2022-03-03 18:42:34,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:34,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:34,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:34,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:34,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649801345] [2022-03-03 18:42:34,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649801345] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:34,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:34,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:34,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287679491] [2022-03-03 18:42:34,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:34,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:34,774 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:34,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:34,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:34,774 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) [2022-03-03 18:42:34,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:34,851 INFO L93 Difference]: Finished difference Result 1319 states and 4950 transitions. [2022-03-03 18:42:34,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:34,852 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:34,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:34,854 INFO L225 Difference]: With dead ends: 1319 [2022-03-03 18:42:34,854 INFO L226 Difference]: Without dead ends: 1100 [2022-03-03 18:42:34,854 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 [2022-03-03 18:42:34,854 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 [2022-03-03 18:42:34,854 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] [2022-03-03 18:42:34,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2022-03-03 18:42:34,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1100. [2022-03-03 18:42:34,866 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) [2022-03-03 18:42:34,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 4265 transitions. [2022-03-03 18:42:34,868 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 4265 transitions. Word has length 25 [2022-03-03 18:42:34,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:34,868 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 4265 transitions. [2022-03-03 18:42:34,868 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) [2022-03-03 18:42:34,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 4265 transitions. [2022-03-03 18:42:34,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:34,870 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:34,870 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] [2022-03-03 18:42:34,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable604 [2022-03-03 18:42:34,870 INFO L402 AbstractCegarLoop]: === Iteration 606 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:34,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:34,870 INFO L85 PathProgramCache]: Analyzing trace with hash 821229273, now seen corresponding path program 601 times [2022-03-03 18:42:34,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:34,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652392703] [2022-03-03 18:42:34,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:34,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:34,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:34,987 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:34,987 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652392703] [2022-03-03 18:42:34,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652392703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:34,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:34,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:34,987 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824043536] [2022-03-03 18:42:34,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:34,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:34,987 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:34,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:34,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:34,988 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) [2022-03-03 18:42:35,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:35,090 INFO L93 Difference]: Finished difference Result 2103 states and 7646 transitions. [2022-03-03 18:42:35,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:35,090 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 [2022-03-03 18:42:35,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:35,094 INFO L225 Difference]: With dead ends: 2103 [2022-03-03 18:42:35,094 INFO L226 Difference]: Without dead ends: 1914 [2022-03-03 18:42:35,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:35,094 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 [2022-03-03 18:42:35,094 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] [2022-03-03 18:42:35,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2022-03-03 18:42:35,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1144. [2022-03-03 18:42:35,110 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) [2022-03-03 18:42:35,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4423 transitions. [2022-03-03 18:42:35,112 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4423 transitions. Word has length 25 [2022-03-03 18:42:35,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:35,112 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4423 transitions. [2022-03-03 18:42:35,112 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) [2022-03-03 18:42:35,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4423 transitions. [2022-03-03 18:42:35,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:35,114 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:35,114 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] [2022-03-03 18:42:35,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable605 [2022-03-03 18:42:35,114 INFO L402 AbstractCegarLoop]: === Iteration 607 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:35,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:35,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1222107721, now seen corresponding path program 602 times [2022-03-03 18:42:35,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:35,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124631911] [2022-03-03 18:42:35,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:35,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:35,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:35,239 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:35,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124631911] [2022-03-03 18:42:35,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124631911] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:35,239 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:35,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:35,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411299061] [2022-03-03 18:42:35,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:35,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:35,240 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:35,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:35,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:35,240 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) [2022-03-03 18:42:35,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:35,352 INFO L93 Difference]: Finished difference Result 2101 states and 7611 transitions. [2022-03-03 18:42:35,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:35,352 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:35,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:35,356 INFO L225 Difference]: With dead ends: 2101 [2022-03-03 18:42:35,356 INFO L226 Difference]: Without dead ends: 1884 [2022-03-03 18:42:35,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:35,356 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 96 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:35,356 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] [2022-03-03 18:42:35,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2022-03-03 18:42:35,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1114. [2022-03-03 18:42:35,371 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) [2022-03-03 18:42:35,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 4316 transitions. [2022-03-03 18:42:35,374 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 4316 transitions. Word has length 25 [2022-03-03 18:42:35,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:35,374 INFO L470 AbstractCegarLoop]: Abstraction has 1114 states and 4316 transitions. [2022-03-03 18:42:35,374 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) [2022-03-03 18:42:35,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 4316 transitions. [2022-03-03 18:42:35,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:35,376 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:35,376 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] [2022-03-03 18:42:35,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable606 [2022-03-03 18:42:35,376 INFO L402 AbstractCegarLoop]: === Iteration 608 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:35,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:35,376 INFO L85 PathProgramCache]: Analyzing trace with hash -25567689, now seen corresponding path program 603 times [2022-03-03 18:42:35,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:35,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52024621] [2022-03-03 18:42:35,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:35,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:35,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:35,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:35,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52024621] [2022-03-03 18:42:35,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52024621] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:35,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:35,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:35,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514223156] [2022-03-03 18:42:35,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:35,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:35,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:35,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:35,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:35,490 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) [2022-03-03 18:42:35,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:35,596 INFO L93 Difference]: Finished difference Result 2097 states and 7613 transitions. [2022-03-03 18:42:35,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:35,596 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:35,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:35,600 INFO L225 Difference]: With dead ends: 2097 [2022-03-03 18:42:35,600 INFO L226 Difference]: Without dead ends: 1908 [2022-03-03 18:42:35,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:35,600 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 105 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:35,600 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] [2022-03-03 18:42:35,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2022-03-03 18:42:35,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1142. [2022-03-03 18:42:35,616 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) [2022-03-03 18:42:35,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 4404 transitions. [2022-03-03 18:42:35,619 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 4404 transitions. Word has length 25 [2022-03-03 18:42:35,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:35,619 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 4404 transitions. [2022-03-03 18:42:35,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:35,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 4404 transitions. [2022-03-03 18:42:35,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:35,621 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:35,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:35,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable607 [2022-03-03 18:42:35,621 INFO L402 AbstractCegarLoop]: === Iteration 609 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:35,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:35,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1166898743, now seen corresponding path program 604 times [2022-03-03 18:42:35,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:35,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688613974] [2022-03-03 18:42:35,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:35,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:35,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:35,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:35,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688613974] [2022-03-03 18:42:35,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688613974] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:35,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:35,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:35,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109204055] [2022-03-03 18:42:35,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:35,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:35,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:35,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:35,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:35,737 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) [2022-03-03 18:42:35,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:35,846 INFO L93 Difference]: Finished difference Result 2091 states and 7568 transitions. [2022-03-03 18:42:35,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:35,847 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 [2022-03-03 18:42:35,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:35,851 INFO L225 Difference]: With dead ends: 2091 [2022-03-03 18:42:35,851 INFO L226 Difference]: Without dead ends: 1880 [2022-03-03 18:42:35,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:35,851 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 107 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:35,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 130 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:35,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2022-03-03 18:42:35,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1114. [2022-03-03 18:42:35,867 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) [2022-03-03 18:42:35,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 4302 transitions. [2022-03-03 18:42:35,870 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 4302 transitions. Word has length 25 [2022-03-03 18:42:35,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:35,870 INFO L470 AbstractCegarLoop]: Abstraction has 1114 states and 4302 transitions. [2022-03-03 18:42:35,870 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) [2022-03-03 18:42:35,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 4302 transitions. [2022-03-03 18:42:35,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:35,871 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:35,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:35,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable608 [2022-03-03 18:42:35,872 INFO L402 AbstractCegarLoop]: === Iteration 610 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:35,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:35,872 INFO L85 PathProgramCache]: Analyzing trace with hash 956779925, now seen corresponding path program 605 times [2022-03-03 18:42:35,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:35,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367336238] [2022-03-03 18:42:35,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:35,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:35,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:35,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:35,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367336238] [2022-03-03 18:42:35,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367336238] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:35,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:35,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:35,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522477220] [2022-03-03 18:42:35,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:35,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:35,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:35,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:35,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:35,989 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) [2022-03-03 18:42:36,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:36,092 INFO L93 Difference]: Finished difference Result 2093 states and 7589 transitions. [2022-03-03 18:42:36,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:36,092 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:36,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:36,096 INFO L225 Difference]: With dead ends: 2093 [2022-03-03 18:42:36,096 INFO L226 Difference]: Without dead ends: 1906 [2022-03-03 18:42:36,096 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 [2022-03-03 18:42:36,096 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 [2022-03-03 18:42:36,097 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] [2022-03-03 18:42:36,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2022-03-03 18:42:36,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1142. [2022-03-03 18:42:36,112 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) [2022-03-03 18:42:36,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 4390 transitions. [2022-03-03 18:42:36,114 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 4390 transitions. Word has length 25 [2022-03-03 18:42:36,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:36,114 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 4390 transitions. [2022-03-03 18:42:36,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:36,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 4390 transitions. [2022-03-03 18:42:36,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:36,116 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:36,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:36,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable609 [2022-03-03 18:42:36,116 INFO L402 AbstractCegarLoop]: === Iteration 611 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:36,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:36,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2037842551, now seen corresponding path program 606 times [2022-03-03 18:42:36,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:36,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713214656] [2022-03-03 18:42:36,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:36,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:36,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:36,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:36,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713214656] [2022-03-03 18:42:36,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713214656] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:36,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:36,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:36,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988843613] [2022-03-03 18:42:36,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:36,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:36,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:36,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:36,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:36,234 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) [2022-03-03 18:42:36,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:36,342 INFO L93 Difference]: Finished difference Result 2089 states and 7549 transitions. [2022-03-03 18:42:36,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:36,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:36,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:36,346 INFO L225 Difference]: With dead ends: 2089 [2022-03-03 18:42:36,346 INFO L226 Difference]: Without dead ends: 1864 [2022-03-03 18:42:36,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:36,347 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 100 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:36,347 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] [2022-03-03 18:42:36,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2022-03-03 18:42:36,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1100. [2022-03-03 18:42:36,362 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) [2022-03-03 18:42:36,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 4259 transitions. [2022-03-03 18:42:36,364 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 4259 transitions. Word has length 25 [2022-03-03 18:42:36,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:36,364 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 4259 transitions. [2022-03-03 18:42:36,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:36,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 4259 transitions. [2022-03-03 18:42:36,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:36,366 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:36,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:36,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable610 [2022-03-03 18:42:36,366 INFO L402 AbstractCegarLoop]: === Iteration 612 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:36,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:36,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1201832265, now seen corresponding path program 607 times [2022-03-03 18:42:36,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:36,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903010993] [2022-03-03 18:42:36,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:36,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:36,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:36,483 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:36,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903010993] [2022-03-03 18:42:36,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903010993] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:36,483 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:36,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:36,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524863258] [2022-03-03 18:42:36,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:36,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:36,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:36,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:36,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:36,483 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) [2022-03-03 18:42:36,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:36,593 INFO L93 Difference]: Finished difference Result 2085 states and 7571 transitions. [2022-03-03 18:42:36,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:36,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:36,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:36,598 INFO L225 Difference]: With dead ends: 2085 [2022-03-03 18:42:36,598 INFO L226 Difference]: Without dead ends: 1896 [2022-03-03 18:42:36,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:36,598 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 112 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:36,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 123 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:36,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2022-03-03 18:42:36,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1142. [2022-03-03 18:42:36,614 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) [2022-03-03 18:42:36,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 4408 transitions. [2022-03-03 18:42:36,617 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 4408 transitions. Word has length 25 [2022-03-03 18:42:36,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:36,617 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 4408 transitions. [2022-03-03 18:42:36,617 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) [2022-03-03 18:42:36,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 4408 transitions. [2022-03-03 18:42:36,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:36,619 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:36,619 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] [2022-03-03 18:42:36,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable611 [2022-03-03 18:42:36,619 INFO L402 AbstractCegarLoop]: === Iteration 613 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:36,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:36,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1049798037, now seen corresponding path program 608 times [2022-03-03 18:42:36,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:36,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204574694] [2022-03-03 18:42:36,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:36,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:36,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:36,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:36,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204574694] [2022-03-03 18:42:36,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204574694] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:36,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:36,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:36,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169654370] [2022-03-03 18:42:36,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:36,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:36,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:36,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:36,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:36,736 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) [2022-03-03 18:42:36,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:36,843 INFO L93 Difference]: Finished difference Result 2083 states and 7536 transitions. [2022-03-03 18:42:36,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:36,843 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:36,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:36,847 INFO L225 Difference]: With dead ends: 2083 [2022-03-03 18:42:36,847 INFO L226 Difference]: Without dead ends: 1866 [2022-03-03 18:42:36,847 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 [2022-03-03 18:42:36,847 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 104 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:36,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 126 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:36,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2022-03-03 18:42:36,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1112. [2022-03-03 18:42:36,863 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) [2022-03-03 18:42:36,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4303 transitions. [2022-03-03 18:42:36,865 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4303 transitions. Word has length 25 [2022-03-03 18:42:36,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:36,865 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4303 transitions. [2022-03-03 18:42:36,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:36,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4303 transitions. [2022-03-03 18:42:36,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:36,867 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:36,867 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] [2022-03-03 18:42:36,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable612 [2022-03-03 18:42:36,867 INFO L402 AbstractCegarLoop]: === Iteration 614 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:36,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:36,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1997859145, now seen corresponding path program 609 times [2022-03-03 18:42:36,868 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:36,868 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565613680] [2022-03-03 18:42:36,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:36,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:36,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:36,997 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:36,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565613680] [2022-03-03 18:42:36,997 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565613680] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:36,997 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:36,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:36,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985482570] [2022-03-03 18:42:36,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:36,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:36,998 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:36,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:36,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:36,998 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) [2022-03-03 18:42:37,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:37,116 INFO L93 Difference]: Finished difference Result 2067 states and 7496 transitions. [2022-03-03 18:42:37,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:37,116 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:37,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:37,120 INFO L225 Difference]: With dead ends: 2067 [2022-03-03 18:42:37,121 INFO L226 Difference]: Without dead ends: 1878 [2022-03-03 18:42:37,121 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 [2022-03-03 18:42:37,121 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 [2022-03-03 18:42:37,121 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] [2022-03-03 18:42:37,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2022-03-03 18:42:37,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1136. [2022-03-03 18:42:37,144 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) [2022-03-03 18:42:37,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4379 transitions. [2022-03-03 18:42:37,147 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4379 transitions. Word has length 25 [2022-03-03 18:42:37,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:37,147 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4379 transitions. [2022-03-03 18:42:37,147 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) [2022-03-03 18:42:37,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4379 transitions. [2022-03-03 18:42:37,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:37,149 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:37,149 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] [2022-03-03 18:42:37,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable613 [2022-03-03 18:42:37,150 INFO L402 AbstractCegarLoop]: === Iteration 615 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:37,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:37,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1442070857, now seen corresponding path program 610 times [2022-03-03 18:42:37,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:37,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787250454] [2022-03-03 18:42:37,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:37,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:37,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:37,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:37,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787250454] [2022-03-03 18:42:37,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787250454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:37,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:37,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:37,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100697409] [2022-03-03 18:42:37,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:37,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:37,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:37,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:37,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:37,271 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) [2022-03-03 18:42:37,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:37,396 INFO L93 Difference]: Finished difference Result 2053 states and 7427 transitions. [2022-03-03 18:42:37,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:37,396 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:37,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:37,400 INFO L225 Difference]: With dead ends: 2053 [2022-03-03 18:42:37,400 INFO L226 Difference]: Without dead ends: 1854 [2022-03-03 18:42:37,400 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 [2022-03-03 18:42:37,400 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 [2022-03-03 18:42:37,400 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] [2022-03-03 18:42:37,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2022-03-03 18:42:37,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1112. [2022-03-03 18:42:37,416 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) [2022-03-03 18:42:37,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4291 transitions. [2022-03-03 18:42:37,418 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4291 transitions. Word has length 25 [2022-03-03 18:42:37,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:37,418 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4291 transitions. [2022-03-03 18:42:37,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:37,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4291 transitions. [2022-03-03 18:42:37,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:37,420 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:37,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:37,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable614 [2022-03-03 18:42:37,420 INFO L402 AbstractCegarLoop]: === Iteration 616 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:37,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:37,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1015511531, now seen corresponding path program 611 times [2022-03-03 18:42:37,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:37,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624531859] [2022-03-03 18:42:37,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:37,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:37,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:37,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:37,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624531859] [2022-03-03 18:42:37,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624531859] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:37,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:37,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:37,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164032537] [2022-03-03 18:42:37,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:37,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:37,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:37,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:37,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:37,537 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) [2022-03-03 18:42:37,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:37,636 INFO L93 Difference]: Finished difference Result 2063 states and 7474 transitions. [2022-03-03 18:42:37,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:37,636 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 [2022-03-03 18:42:37,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:37,640 INFO L225 Difference]: With dead ends: 2063 [2022-03-03 18:42:37,640 INFO L226 Difference]: Without dead ends: 1876 [2022-03-03 18:42:37,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:37,640 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 118 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:37,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 112 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:37,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2022-03-03 18:42:37,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1136. [2022-03-03 18:42:37,656 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) [2022-03-03 18:42:37,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4367 transitions. [2022-03-03 18:42:37,659 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4367 transitions. Word has length 25 [2022-03-03 18:42:37,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:37,659 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4367 transitions. [2022-03-03 18:42:37,659 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) [2022-03-03 18:42:37,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4367 transitions. [2022-03-03 18:42:37,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:37,661 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:37,661 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] [2022-03-03 18:42:37,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable615 [2022-03-03 18:42:37,661 INFO L402 AbstractCegarLoop]: === Iteration 617 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:37,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:37,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1222319497, now seen corresponding path program 612 times [2022-03-03 18:42:37,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:37,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909180936] [2022-03-03 18:42:37,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:37,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:37,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:37,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:37,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909180936] [2022-03-03 18:42:37,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909180936] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:37,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:37,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:37,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143990061] [2022-03-03 18:42:37,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:37,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:37,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:37,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:37,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:37,775 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) [2022-03-03 18:42:37,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:37,888 INFO L93 Difference]: Finished difference Result 2051 states and 7410 transitions. [2022-03-03 18:42:37,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:37,889 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:37,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:37,892 INFO L225 Difference]: With dead ends: 2051 [2022-03-03 18:42:37,893 INFO L226 Difference]: Without dead ends: 1840 [2022-03-03 18:42:37,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:37,893 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 103 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:37,893 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] [2022-03-03 18:42:37,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2022-03-03 18:42:37,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1100. [2022-03-03 18:42:37,908 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) [2022-03-03 18:42:37,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 4253 transitions. [2022-03-03 18:42:37,911 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 4253 transitions. Word has length 25 [2022-03-03 18:42:37,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:37,911 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 4253 transitions. [2022-03-03 18:42:37,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:37,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 4253 transitions. [2022-03-03 18:42:37,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:37,912 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:37,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:37,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable616 [2022-03-03 18:42:37,913 INFO L402 AbstractCegarLoop]: === Iteration 618 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:37,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:37,913 INFO L85 PathProgramCache]: Analyzing trace with hash -2058580331, now seen corresponding path program 613 times [2022-03-03 18:42:37,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:37,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792338642] [2022-03-03 18:42:37,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:37,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:38,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:38,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792338642] [2022-03-03 18:42:38,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792338642] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:38,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:38,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:38,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613765085] [2022-03-03 18:42:38,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:38,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:38,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:38,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:38,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:38,027 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) [2022-03-03 18:42:38,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:38,134 INFO L93 Difference]: Finished difference Result 2073 states and 7527 transitions. [2022-03-03 18:42:38,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:38,135 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:38,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:38,139 INFO L225 Difference]: With dead ends: 2073 [2022-03-03 18:42:38,139 INFO L226 Difference]: Without dead ends: 1884 [2022-03-03 18:42:38,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:38,139 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 102 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:38,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 117 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:38,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2022-03-03 18:42:38,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1140. [2022-03-03 18:42:38,155 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) [2022-03-03 18:42:38,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 4397 transitions. [2022-03-03 18:42:38,157 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 4397 transitions. Word has length 25 [2022-03-03 18:42:38,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:38,157 INFO L470 AbstractCegarLoop]: Abstraction has 1140 states and 4397 transitions. [2022-03-03 18:42:38,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:38,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 4397 transitions. [2022-03-03 18:42:38,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:38,159 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:38,159 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] [2022-03-03 18:42:38,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable617 [2022-03-03 18:42:38,159 INFO L402 AbstractCegarLoop]: === Iteration 619 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:38,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:38,160 INFO L85 PathProgramCache]: Analyzing trace with hash -866113899, now seen corresponding path program 614 times [2022-03-03 18:42:38,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:38,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652913474] [2022-03-03 18:42:38,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:38,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:38,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:38,277 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:38,277 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652913474] [2022-03-03 18:42:38,277 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652913474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:38,277 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:38,277 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:38,277 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290939962] [2022-03-03 18:42:38,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:38,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:38,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:38,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:38,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:38,278 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) [2022-03-03 18:42:38,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:38,379 INFO L93 Difference]: Finished difference Result 2067 states and 7482 transitions. [2022-03-03 18:42:38,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:38,380 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 [2022-03-03 18:42:38,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:38,383 INFO L225 Difference]: With dead ends: 2067 [2022-03-03 18:42:38,383 INFO L226 Difference]: Without dead ends: 1856 [2022-03-03 18:42:38,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:38,384 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 102 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:38,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 117 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:38,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2022-03-03 18:42:38,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1112. [2022-03-03 18:42:38,400 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) [2022-03-03 18:42:38,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4297 transitions. [2022-03-03 18:42:38,402 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4297 transitions. Word has length 25 [2022-03-03 18:42:38,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:38,403 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4297 transitions. [2022-03-03 18:42:38,403 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) [2022-03-03 18:42:38,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4297 transitions. [2022-03-03 18:42:38,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:38,404 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:38,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:38,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable618 [2022-03-03 18:42:38,404 INFO L402 AbstractCegarLoop]: === Iteration 620 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:38,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:38,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1755484919, now seen corresponding path program 615 times [2022-03-03 18:42:38,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:38,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415129904] [2022-03-03 18:42:38,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:38,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:38,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:38,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:38,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415129904] [2022-03-03 18:42:38,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415129904] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:38,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:38,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:38,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926221192] [2022-03-03 18:42:38,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:38,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:38,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:38,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:38,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:38,523 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) [2022-03-03 18:42:38,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:38,640 INFO L93 Difference]: Finished difference Result 2061 states and 7471 transitions. [2022-03-03 18:42:38,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:38,640 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 [2022-03-03 18:42:38,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:38,644 INFO L225 Difference]: With dead ends: 2061 [2022-03-03 18:42:38,644 INFO L226 Difference]: Without dead ends: 1872 [2022-03-03 18:42:38,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:38,644 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 99 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:38,645 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] [2022-03-03 18:42:38,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-03-03 18:42:38,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1136. [2022-03-03 18:42:38,660 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) [2022-03-03 18:42:38,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4373 transitions. [2022-03-03 18:42:38,662 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4373 transitions. Word has length 25 [2022-03-03 18:42:38,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:38,662 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4373 transitions. [2022-03-03 18:42:38,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:38,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4373 transitions. [2022-03-03 18:42:38,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:38,664 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:38,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:38,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable619 [2022-03-03 18:42:38,664 INFO L402 AbstractCegarLoop]: === Iteration 621 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:38,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:38,665 INFO L85 PathProgramCache]: Analyzing trace with hash 829834901, now seen corresponding path program 616 times [2022-03-03 18:42:38,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:38,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332717195] [2022-03-03 18:42:38,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:38,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:38,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:38,782 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:38,782 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332717195] [2022-03-03 18:42:38,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332717195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:38,782 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:38,782 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:38,782 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721227262] [2022-03-03 18:42:38,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:38,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:38,782 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:38,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:38,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:38,783 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) [2022-03-03 18:42:38,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:38,892 INFO L93 Difference]: Finished difference Result 2047 states and 7402 transitions. [2022-03-03 18:42:38,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:38,893 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 [2022-03-03 18:42:38,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:38,896 INFO L225 Difference]: With dead ends: 2047 [2022-03-03 18:42:38,896 INFO L226 Difference]: Without dead ends: 1848 [2022-03-03 18:42:38,896 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 [2022-03-03 18:42:38,897 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 95 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:38,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 118 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:38,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states. [2022-03-03 18:42:38,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1112. [2022-03-03 18:42:38,912 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) [2022-03-03 18:42:38,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4285 transitions. [2022-03-03 18:42:38,914 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4285 transitions. Word has length 25 [2022-03-03 18:42:38,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:38,914 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4285 transitions. [2022-03-03 18:42:38,914 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) [2022-03-03 18:42:38,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4285 transitions. [2022-03-03 18:42:38,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:38,915 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:38,916 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] [2022-03-03 18:42:38,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable620 [2022-03-03 18:42:38,916 INFO L402 AbstractCegarLoop]: === Iteration 622 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:38,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:38,916 INFO L85 PathProgramCache]: Analyzing trace with hash 670486165, now seen corresponding path program 617 times [2022-03-03 18:42:38,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:38,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215582815] [2022-03-03 18:42:38,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:38,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:39,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:39,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:39,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215582815] [2022-03-03 18:42:39,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215582815] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:39,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:39,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:39,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033818826] [2022-03-03 18:42:39,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:39,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:39,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:39,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:39,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:39,033 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) [2022-03-03 18:42:39,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:39,138 INFO L93 Difference]: Finished difference Result 2049 states and 7425 transitions. [2022-03-03 18:42:39,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:39,139 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 [2022-03-03 18:42:39,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:39,142 INFO L225 Difference]: With dead ends: 2049 [2022-03-03 18:42:39,142 INFO L226 Difference]: Without dead ends: 1866 [2022-03-03 18:42:39,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:39,143 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 107 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:39,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 126 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:39,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2022-03-03 18:42:39,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1136. [2022-03-03 18:42:39,158 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) [2022-03-03 18:42:39,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4361 transitions. [2022-03-03 18:42:39,160 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4361 transitions. Word has length 25 [2022-03-03 18:42:39,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:39,160 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4361 transitions. [2022-03-03 18:42:39,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:39,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4361 transitions. [2022-03-03 18:42:39,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:39,162 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:39,162 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] [2022-03-03 18:42:39,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable621 [2022-03-03 18:42:39,162 INFO L402 AbstractCegarLoop]: === Iteration 623 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:39,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:39,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1751548791, now seen corresponding path program 618 times [2022-03-03 18:42:39,163 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:39,163 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838419552] [2022-03-03 18:42:39,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:39,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:39,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:39,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:39,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838419552] [2022-03-03 18:42:39,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838419552] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:39,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:39,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:39,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404312443] [2022-03-03 18:42:39,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:39,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:39,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:39,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:39,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:39,282 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) [2022-03-03 18:42:39,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:39,394 INFO L93 Difference]: Finished difference Result 2041 states and 7373 transitions. [2022-03-03 18:42:39,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:39,394 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:39,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:39,408 INFO L225 Difference]: With dead ends: 2041 [2022-03-03 18:42:39,408 INFO L226 Difference]: Without dead ends: 1830 [2022-03-03 18:42:39,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:39,408 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 [2022-03-03 18:42:39,408 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] [2022-03-03 18:42:39,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2022-03-03 18:42:39,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1100. [2022-03-03 18:42:39,423 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) [2022-03-03 18:42:39,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 4247 transitions. [2022-03-03 18:42:39,425 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 4247 transitions. Word has length 25 [2022-03-03 18:42:39,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:39,425 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 4247 transitions. [2022-03-03 18:42:39,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:39,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 4247 transitions. [2022-03-03 18:42:39,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:39,427 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:39,427 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] [2022-03-03 18:42:39,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable622 [2022-03-03 18:42:39,427 INFO L402 AbstractCegarLoop]: === Iteration 624 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:39,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:39,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1086183821, now seen corresponding path program 619 times [2022-03-03 18:42:39,428 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:39,428 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107841017] [2022-03-03 18:42:39,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:39,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:39,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:39,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:39,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107841017] [2022-03-03 18:42:39,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107841017] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:39,545 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:39,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:39,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503363407] [2022-03-03 18:42:39,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:39,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:39,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:39,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:39,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:39,546 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) [2022-03-03 18:42:39,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:39,642 INFO L93 Difference]: Finished difference Result 2067 states and 7506 transitions. [2022-03-03 18:42:39,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:39,642 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 [2022-03-03 18:42:39,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:39,646 INFO L225 Difference]: With dead ends: 2067 [2022-03-03 18:42:39,646 INFO L226 Difference]: Without dead ends: 1880 [2022-03-03 18:42:39,646 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 [2022-03-03 18:42:39,646 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 121 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-03-03 18:42:39,646 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] [2022-03-03 18:42:39,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2022-03-03 18:42:39,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1140. [2022-03-03 18:42:39,662 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) [2022-03-03 18:42:39,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 4391 transitions. [2022-03-03 18:42:39,664 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 4391 transitions. Word has length 25 [2022-03-03 18:42:39,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:39,664 INFO L470 AbstractCegarLoop]: Abstraction has 1140 states and 4391 transitions. [2022-03-03 18:42:39,664 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) [2022-03-03 18:42:39,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 4391 transitions. [2022-03-03 18:42:39,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:39,666 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:39,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:39,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable623 [2022-03-03 18:42:39,666 INFO L402 AbstractCegarLoop]: === Iteration 625 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:39,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:39,666 INFO L85 PathProgramCache]: Analyzing trace with hash -5121195, now seen corresponding path program 620 times [2022-03-03 18:42:39,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:39,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534923026] [2022-03-03 18:42:39,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:39,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:39,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:39,782 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:39,782 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534923026] [2022-03-03 18:42:39,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534923026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:39,783 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:39,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:39,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753352371] [2022-03-03 18:42:39,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:39,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:39,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:39,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:39,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:39,783 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) [2022-03-03 18:42:39,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:39,905 INFO L93 Difference]: Finished difference Result 2063 states and 7466 transitions. [2022-03-03 18:42:39,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:39,905 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:39,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:39,909 INFO L225 Difference]: With dead ends: 2063 [2022-03-03 18:42:39,909 INFO L226 Difference]: Without dead ends: 1852 [2022-03-03 18:42:39,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:39,909 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 [2022-03-03 18:42:39,909 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] [2022-03-03 18:42:39,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2022-03-03 18:42:39,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1112. [2022-03-03 18:42:39,925 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) [2022-03-03 18:42:39,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4291 transitions. [2022-03-03 18:42:39,928 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4291 transitions. Word has length 25 [2022-03-03 18:42:39,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:39,928 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4291 transitions. [2022-03-03 18:42:39,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:39,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4291 transitions. [2022-03-03 18:42:39,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:39,929 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:39,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:39,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable624 [2022-03-03 18:42:39,930 INFO L402 AbstractCegarLoop]: === Iteration 626 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:39,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:39,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1567085867, now seen corresponding path program 621 times [2022-03-03 18:42:39,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:39,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566351986] [2022-03-03 18:42:39,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:39,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:40,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:40,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:40,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566351986] [2022-03-03 18:42:40,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566351986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:40,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:40,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:40,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593720170] [2022-03-03 18:42:40,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:40,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:40,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:40,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:40,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:40,045 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) [2022-03-03 18:42:40,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:40,140 INFO L93 Difference]: Finished difference Result 2055 states and 7450 transitions. [2022-03-03 18:42:40,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:40,140 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:40,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:40,144 INFO L225 Difference]: With dead ends: 2055 [2022-03-03 18:42:40,144 INFO L226 Difference]: Without dead ends: 1868 [2022-03-03 18:42:40,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:40,144 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 120 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-03-03 18:42:40,144 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] [2022-03-03 18:42:40,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states. [2022-03-03 18:42:40,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1136. [2022-03-03 18:42:40,160 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) [2022-03-03 18:42:40,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4367 transitions. [2022-03-03 18:42:40,162 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4367 transitions. Word has length 25 [2022-03-03 18:42:40,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:40,162 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4367 transitions. [2022-03-03 18:42:40,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:40,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4367 transitions. [2022-03-03 18:42:40,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:40,164 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:40,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:40,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable625 [2022-03-03 18:42:40,164 INFO L402 AbstractCegarLoop]: === Iteration 627 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:40,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:40,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1039635157, now seen corresponding path program 622 times [2022-03-03 18:42:40,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:40,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193112273] [2022-03-03 18:42:40,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:40,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:40,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:40,280 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:40,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193112273] [2022-03-03 18:42:40,280 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193112273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:40,280 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:40,280 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:40,280 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188492522] [2022-03-03 18:42:40,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:40,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:40,280 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:40,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:40,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:40,280 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) [2022-03-03 18:42:40,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:40,383 INFO L93 Difference]: Finished difference Result 2043 states and 7386 transitions. [2022-03-03 18:42:40,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:40,383 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:40,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:40,387 INFO L225 Difference]: With dead ends: 2043 [2022-03-03 18:42:40,387 INFO L226 Difference]: Without dead ends: 1844 [2022-03-03 18:42:40,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:40,387 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 109 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:40,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 111 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:40,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2022-03-03 18:42:40,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1112. [2022-03-03 18:42:40,402 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) [2022-03-03 18:42:40,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4279 transitions. [2022-03-03 18:42:40,405 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4279 transitions. Word has length 25 [2022-03-03 18:42:40,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:40,405 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4279 transitions. [2022-03-03 18:42:40,405 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) [2022-03-03 18:42:40,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4279 transitions. [2022-03-03 18:42:40,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:40,407 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:40,407 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] [2022-03-03 18:42:40,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable626 [2022-03-03 18:42:40,407 INFO L402 AbstractCegarLoop]: === Iteration 628 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:40,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:40,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1179080905, now seen corresponding path program 623 times [2022-03-03 18:42:40,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:40,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576633445] [2022-03-03 18:42:40,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:40,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:40,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:40,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:40,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576633445] [2022-03-03 18:42:40,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576633445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:40,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:40,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:40,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84452300] [2022-03-03 18:42:40,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:40,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:40,524 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:40,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:40,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:40,525 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) [2022-03-03 18:42:40,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:40,626 INFO L93 Difference]: Finished difference Result 2047 states and 7414 transitions. [2022-03-03 18:42:40,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:40,626 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 [2022-03-03 18:42:40,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:40,630 INFO L225 Difference]: With dead ends: 2047 [2022-03-03 18:42:40,630 INFO L226 Difference]: Without dead ends: 1864 [2022-03-03 18:42:40,630 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 [2022-03-03 18:42:40,630 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 111 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:40,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 117 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:40,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2022-03-03 18:42:40,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1136. [2022-03-03 18:42:40,645 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) [2022-03-03 18:42:40,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4355 transitions. [2022-03-03 18:42:40,648 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4355 transitions. Word has length 25 [2022-03-03 18:42:40,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:40,648 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4355 transitions. [2022-03-03 18:42:40,648 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) [2022-03-03 18:42:40,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4355 transitions. [2022-03-03 18:42:40,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:40,649 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:40,649 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] [2022-03-03 18:42:40,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable627 [2022-03-03 18:42:40,650 INFO L402 AbstractCegarLoop]: === Iteration 629 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:40,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:40,650 INFO L85 PathProgramCache]: Analyzing trace with hash -2025877867, now seen corresponding path program 624 times [2022-03-03 18:42:40,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:40,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275624221] [2022-03-03 18:42:40,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:40,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:40,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:40,767 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:40,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275624221] [2022-03-03 18:42:40,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275624221] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:40,767 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:40,767 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:40,768 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589640148] [2022-03-03 18:42:40,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:40,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:40,768 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:40,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:40,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:40,768 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) [2022-03-03 18:42:40,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:40,877 INFO L93 Difference]: Finished difference Result 2039 states and 7362 transitions. [2022-03-03 18:42:40,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:40,877 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:40,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:40,881 INFO L225 Difference]: With dead ends: 2039 [2022-03-03 18:42:40,881 INFO L226 Difference]: Without dead ends: 1822 [2022-03-03 18:42:40,881 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 [2022-03-03 18:42:40,881 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 [2022-03-03 18:42:40,881 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] [2022-03-03 18:42:40,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2022-03-03 18:42:40,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1094. [2022-03-03 18:42:40,896 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) [2022-03-03 18:42:40,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 4231 transitions. [2022-03-03 18:42:40,898 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 4231 transitions. Word has length 25 [2022-03-03 18:42:40,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:40,898 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 4231 transitions. [2022-03-03 18:42:40,898 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) [2022-03-03 18:42:40,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 4231 transitions. [2022-03-03 18:42:40,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:40,900 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:40,900 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] [2022-03-03 18:42:40,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable628 [2022-03-03 18:42:40,900 INFO L402 AbstractCegarLoop]: === Iteration 630 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:40,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:40,900 INFO L85 PathProgramCache]: Analyzing trace with hash -472200137, now seen corresponding path program 625 times [2022-03-03 18:42:40,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:40,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345198490] [2022-03-03 18:42:40,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:40,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:41,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:41,019 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:41,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345198490] [2022-03-03 18:42:41,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345198490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:41,019 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:41,019 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:41,019 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182175307] [2022-03-03 18:42:41,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:41,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:41,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:41,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:41,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:41,019 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) [2022-03-03 18:42:41,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:41,126 INFO L93 Difference]: Finished difference Result 2083 states and 7547 transitions. [2022-03-03 18:42:41,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:41,126 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:41,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:41,130 INFO L225 Difference]: With dead ends: 2083 [2022-03-03 18:42:41,130 INFO L226 Difference]: Without dead ends: 1894 [2022-03-03 18:42:41,130 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 [2022-03-03 18:42:41,130 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 115 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:41,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 117 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:41,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2022-03-03 18:42:41,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1124. [2022-03-03 18:42:41,146 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) [2022-03-03 18:42:41,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 4324 transitions. [2022-03-03 18:42:41,149 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 4324 transitions. Word has length 25 [2022-03-03 18:42:41,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:41,149 INFO L470 AbstractCegarLoop]: Abstraction has 1124 states and 4324 transitions. [2022-03-03 18:42:41,149 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) [2022-03-03 18:42:41,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 4324 transitions. [2022-03-03 18:42:41,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:41,150 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:41,150 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] [2022-03-03 18:42:41,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable629 [2022-03-03 18:42:41,151 INFO L402 AbstractCegarLoop]: === Iteration 631 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:41,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:41,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1779430165, now seen corresponding path program 626 times [2022-03-03 18:42:41,151 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:41,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447740625] [2022-03-03 18:42:41,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:41,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:41,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:41,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:41,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447740625] [2022-03-03 18:42:41,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447740625] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:41,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:41,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:41,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211562563] [2022-03-03 18:42:41,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:41,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:41,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:41,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:41,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:41,270 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) [2022-03-03 18:42:41,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:41,383 INFO L93 Difference]: Finished difference Result 2081 states and 7512 transitions. [2022-03-03 18:42:41,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:41,383 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:41,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:41,387 INFO L225 Difference]: With dead ends: 2081 [2022-03-03 18:42:41,387 INFO L226 Difference]: Without dead ends: 1864 [2022-03-03 18:42:41,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:41,387 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 104 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:41,387 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] [2022-03-03 18:42:41,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2022-03-03 18:42:41,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1094. [2022-03-03 18:42:41,413 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) [2022-03-03 18:42:41,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 4217 transitions. [2022-03-03 18:42:41,415 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 4217 transitions. Word has length 25 [2022-03-03 18:42:41,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:41,415 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 4217 transitions. [2022-03-03 18:42:41,415 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) [2022-03-03 18:42:41,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 4217 transitions. [2022-03-03 18:42:41,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:41,417 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:41,417 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] [2022-03-03 18:42:41,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable630 [2022-03-03 18:42:41,417 INFO L402 AbstractCegarLoop]: === Iteration 632 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:41,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:41,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1318997099, now seen corresponding path program 627 times [2022-03-03 18:42:41,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:41,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633164200] [2022-03-03 18:42:41,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:41,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:41,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:41,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:41,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633164200] [2022-03-03 18:42:41,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633164200] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:41,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:41,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:41,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402194085] [2022-03-03 18:42:41,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:41,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:41,532 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:41,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:41,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:41,532 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) [2022-03-03 18:42:41,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:41,638 INFO L93 Difference]: Finished difference Result 2077 states and 7514 transitions. [2022-03-03 18:42:41,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:41,638 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:41,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:41,642 INFO L225 Difference]: With dead ends: 2077 [2022-03-03 18:42:41,642 INFO L226 Difference]: Without dead ends: 1888 [2022-03-03 18:42:41,642 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 [2022-03-03 18:42:41,642 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 101 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:41,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 109 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:41,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2022-03-03 18:42:41,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1122. [2022-03-03 18:42:41,657 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) [2022-03-03 18:42:41,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 4305 transitions. [2022-03-03 18:42:41,660 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 4305 transitions. Word has length 25 [2022-03-03 18:42:41,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:41,660 INFO L470 AbstractCegarLoop]: Abstraction has 1122 states and 4305 transitions. [2022-03-03 18:42:41,660 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) [2022-03-03 18:42:41,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 4305 transitions. [2022-03-03 18:42:41,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:41,661 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:41,661 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] [2022-03-03 18:42:41,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable631 [2022-03-03 18:42:41,661 INFO L402 AbstractCegarLoop]: === Iteration 633 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:41,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:41,662 INFO L85 PathProgramCache]: Analyzing trace with hash -126530667, now seen corresponding path program 628 times [2022-03-03 18:42:41,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:41,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124330871] [2022-03-03 18:42:41,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:41,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:41,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:41,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:41,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124330871] [2022-03-03 18:42:41,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124330871] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:41,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:41,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:41,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017139183] [2022-03-03 18:42:41,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:41,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:41,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:41,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:41,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:41,777 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) [2022-03-03 18:42:41,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:41,894 INFO L93 Difference]: Finished difference Result 2071 states and 7469 transitions. [2022-03-03 18:42:41,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:41,895 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 [2022-03-03 18:42:41,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:41,898 INFO L225 Difference]: With dead ends: 2071 [2022-03-03 18:42:41,898 INFO L226 Difference]: Without dead ends: 1860 [2022-03-03 18:42:41,899 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 [2022-03-03 18:42:41,899 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 [2022-03-03 18:42:41,899 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] [2022-03-03 18:42:41,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2022-03-03 18:42:41,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1094. [2022-03-03 18:42:41,914 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) [2022-03-03 18:42:41,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 4203 transitions. [2022-03-03 18:42:41,916 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 4203 transitions. Word has length 25 [2022-03-03 18:42:41,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:41,916 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 4203 transitions. [2022-03-03 18:42:41,916 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) [2022-03-03 18:42:41,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 4203 transitions. [2022-03-03 18:42:41,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:41,918 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:41,918 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] [2022-03-03 18:42:41,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable632 [2022-03-03 18:42:41,918 INFO L402 AbstractCegarLoop]: === Iteration 634 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:41,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:41,918 INFO L85 PathProgramCache]: Analyzing trace with hash -336649485, now seen corresponding path program 629 times [2022-03-03 18:42:41,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:41,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718745000] [2022-03-03 18:42:41,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:41,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:42,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:42,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:42,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718745000] [2022-03-03 18:42:42,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718745000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:42,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:42,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:42,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240713835] [2022-03-03 18:42:42,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:42,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:42,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:42,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:42,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:42,035 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) [2022-03-03 18:42:42,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:42,137 INFO L93 Difference]: Finished difference Result 2073 states and 7490 transitions. [2022-03-03 18:42:42,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:42,138 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:42,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:42,142 INFO L225 Difference]: With dead ends: 2073 [2022-03-03 18:42:42,142 INFO L226 Difference]: Without dead ends: 1886 [2022-03-03 18:42:42,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:42,142 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 [2022-03-03 18:42:42,142 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] [2022-03-03 18:42:42,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2022-03-03 18:42:42,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1122. [2022-03-03 18:42:42,158 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) [2022-03-03 18:42:42,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 4291 transitions. [2022-03-03 18:42:42,160 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 4291 transitions. Word has length 25 [2022-03-03 18:42:42,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:42,160 INFO L470 AbstractCegarLoop]: Abstraction has 1122 states and 4291 transitions. [2022-03-03 18:42:42,160 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) [2022-03-03 18:42:42,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 4291 transitions. [2022-03-03 18:42:42,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:42,162 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:42,162 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] [2022-03-03 18:42:42,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable633 [2022-03-03 18:42:42,162 INFO L402 AbstractCegarLoop]: === Iteration 635 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:42,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:42,162 INFO L85 PathProgramCache]: Analyzing trace with hash 744413141, now seen corresponding path program 630 times [2022-03-03 18:42:42,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:42,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685381499] [2022-03-03 18:42:42,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:42,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:42,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:42,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:42,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685381499] [2022-03-03 18:42:42,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685381499] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:42,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:42,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:42,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215609608] [2022-03-03 18:42:42,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:42,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:42,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:42,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:42,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:42,281 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) [2022-03-03 18:42:42,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:42,385 INFO L93 Difference]: Finished difference Result 2069 states and 7450 transitions. [2022-03-03 18:42:42,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:42,386 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:42,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:42,390 INFO L225 Difference]: With dead ends: 2069 [2022-03-03 18:42:42,390 INFO L226 Difference]: Without dead ends: 1844 [2022-03-03 18:42:42,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:42,390 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 [2022-03-03 18:42:42,390 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] [2022-03-03 18:42:42,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2022-03-03 18:42:42,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1080. [2022-03-03 18:42:42,405 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) [2022-03-03 18:42:42,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 4159 transitions. [2022-03-03 18:42:42,407 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 4159 transitions. Word has length 25 [2022-03-03 18:42:42,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:42,407 INFO L470 AbstractCegarLoop]: Abstraction has 1080 states and 4159 transitions. [2022-03-03 18:42:42,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:42,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 4159 transitions. [2022-03-03 18:42:42,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:42,409 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:42,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:42,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable634 [2022-03-03 18:42:42,409 INFO L402 AbstractCegarLoop]: === Iteration 636 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:42,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:42,409 INFO L85 PathProgramCache]: Analyzing trace with hash 960758839, now seen corresponding path program 631 times [2022-03-03 18:42:42,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:42,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387488570] [2022-03-03 18:42:42,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:42,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:42,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:42,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:42,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387488570] [2022-03-03 18:42:42,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387488570] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:42,527 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:42,527 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:42,527 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173871706] [2022-03-03 18:42:42,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:42,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:42,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:42,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:42,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:42,528 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) [2022-03-03 18:42:42,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:42,643 INFO L93 Difference]: Finished difference Result 2170 states and 7829 transitions. [2022-03-03 18:42:42,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:42,643 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 [2022-03-03 18:42:42,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:42,647 INFO L225 Difference]: With dead ends: 2170 [2022-03-03 18:42:42,647 INFO L226 Difference]: Without dead ends: 1981 [2022-03-03 18:42:42,647 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 [2022-03-03 18:42:42,647 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 [2022-03-03 18:42:42,647 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] [2022-03-03 18:42:42,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2022-03-03 18:42:42,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 1149. [2022-03-03 18:42:42,663 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) [2022-03-03 18:42:42,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 4405 transitions. [2022-03-03 18:42:42,665 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 4405 transitions. Word has length 25 [2022-03-03 18:42:42,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:42,665 INFO L470 AbstractCegarLoop]: Abstraction has 1149 states and 4405 transitions. [2022-03-03 18:42:42,666 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) [2022-03-03 18:42:42,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 4405 transitions. [2022-03-03 18:42:42,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:42,667 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:42,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:42,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable635 [2022-03-03 18:42:42,667 INFO L402 AbstractCegarLoop]: === Iteration 637 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:42,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:42,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1082578155, now seen corresponding path program 632 times [2022-03-03 18:42:42,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:42,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460648852] [2022-03-03 18:42:42,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:42,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:42,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:42,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:42,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460648852] [2022-03-03 18:42:42,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460648852] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:42,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:42,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:42,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121152618] [2022-03-03 18:42:42,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:42,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:42,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:42,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:42,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:42,787 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) [2022-03-03 18:42:42,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:42,896 INFO L93 Difference]: Finished difference Result 2168 states and 7794 transitions. [2022-03-03 18:42:42,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:42,896 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 [2022-03-03 18:42:42,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:42,901 INFO L225 Difference]: With dead ends: 2168 [2022-03-03 18:42:42,901 INFO L226 Difference]: Without dead ends: 1951 [2022-03-03 18:42:42,901 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 [2022-03-03 18:42:42,901 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 109 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:42,901 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] [2022-03-03 18:42:42,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2022-03-03 18:42:42,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1119. [2022-03-03 18:42:42,917 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) [2022-03-03 18:42:42,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 4297 transitions. [2022-03-03 18:42:42,919 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 4297 transitions. Word has length 25 [2022-03-03 18:42:42,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:42,920 INFO L470 AbstractCegarLoop]: Abstraction has 1119 states and 4297 transitions. [2022-03-03 18:42:42,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:42,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 4297 transitions. [2022-03-03 18:42:42,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:42,921 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:42,921 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] [2022-03-03 18:42:42,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable636 [2022-03-03 18:42:42,921 INFO L402 AbstractCegarLoop]: === Iteration 638 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:42,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:42,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1386499127, now seen corresponding path program 633 times [2022-03-03 18:42:42,922 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:42,922 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986004104] [2022-03-03 18:42:42,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:42,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:43,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:43,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:43,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986004104] [2022-03-03 18:42:43,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986004104] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:43,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:43,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:43,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82758033] [2022-03-03 18:42:43,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:43,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:43,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:43,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:43,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:43,042 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) [2022-03-03 18:42:43,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:43,158 INFO L93 Difference]: Finished difference Result 2176 states and 7827 transitions. [2022-03-03 18:42:43,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:43,158 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:43,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:43,162 INFO L225 Difference]: With dead ends: 2176 [2022-03-03 18:42:43,162 INFO L226 Difference]: Without dead ends: 1987 [2022-03-03 18:42:43,162 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 [2022-03-03 18:42:43,162 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 106 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:43,162 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] [2022-03-03 18:42:43,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2022-03-03 18:42:43,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1182. [2022-03-03 18:42:43,179 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) [2022-03-03 18:42:43,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 4504 transitions. [2022-03-03 18:42:43,181 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 4504 transitions. Word has length 25 [2022-03-03 18:42:43,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:43,181 INFO L470 AbstractCegarLoop]: Abstraction has 1182 states and 4504 transitions. [2022-03-03 18:42:43,181 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) [2022-03-03 18:42:43,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 4504 transitions. [2022-03-03 18:42:43,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:43,183 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:43,183 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] [2022-03-03 18:42:43,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable637 [2022-03-03 18:42:43,183 INFO L402 AbstractCegarLoop]: === Iteration 639 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:43,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:43,183 INFO L85 PathProgramCache]: Analyzing trace with hash 830710839, now seen corresponding path program 634 times [2022-03-03 18:42:43,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:43,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312878758] [2022-03-03 18:42:43,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:43,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:43,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:43,310 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:43,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312878758] [2022-03-03 18:42:43,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312878758] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:43,310 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:43,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:43,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820326874] [2022-03-03 18:42:43,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:43,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:43,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:43,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:43,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:43,310 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) [2022-03-03 18:42:43,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:43,412 INFO L93 Difference]: Finished difference Result 2081 states and 7525 transitions. [2022-03-03 18:42:43,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:43,412 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 [2022-03-03 18:42:43,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:43,415 INFO L225 Difference]: With dead ends: 2081 [2022-03-03 18:42:43,415 INFO L226 Difference]: Without dead ends: 1796 [2022-03-03 18:42:43,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:43,416 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 107 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:43,416 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] [2022-03-03 18:42:43,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2022-03-03 18:42:43,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1119. [2022-03-03 18:42:43,441 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) [2022-03-03 18:42:43,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 4266 transitions. [2022-03-03 18:42:43,443 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 4266 transitions. Word has length 25 [2022-03-03 18:42:43,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:43,443 INFO L470 AbstractCegarLoop]: Abstraction has 1119 states and 4266 transitions. [2022-03-03 18:42:43,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:43,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 4266 transitions. [2022-03-03 18:42:43,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:43,444 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:43,444 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] [2022-03-03 18:42:43,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable638 [2022-03-03 18:42:43,445 INFO L402 AbstractCegarLoop]: === Iteration 640 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:43,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:43,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1926120555, now seen corresponding path program 635 times [2022-03-03 18:42:43,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:43,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145006841] [2022-03-03 18:42:43,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:43,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:43,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:43,562 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:43,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145006841] [2022-03-03 18:42:43,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145006841] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:43,563 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:43,563 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:43,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351678320] [2022-03-03 18:42:43,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:43,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:43,563 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:43,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:43,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:43,563 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) [2022-03-03 18:42:43,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:43,688 INFO L93 Difference]: Finished difference Result 2157 states and 7740 transitions. [2022-03-03 18:42:43,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:43,688 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 [2022-03-03 18:42:43,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:43,693 INFO L225 Difference]: With dead ends: 2157 [2022-03-03 18:42:43,693 INFO L226 Difference]: Without dead ends: 1970 [2022-03-03 18:42:43,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:43,693 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 [2022-03-03 18:42:43,693 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] [2022-03-03 18:42:43,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2022-03-03 18:42:43,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1165. [2022-03-03 18:42:43,713 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) [2022-03-03 18:42:43,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 4423 transitions. [2022-03-03 18:42:43,715 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 4423 transitions. Word has length 25 [2022-03-03 18:42:43,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:43,716 INFO L470 AbstractCegarLoop]: Abstraction has 1165 states and 4423 transitions. [2022-03-03 18:42:43,716 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) [2022-03-03 18:42:43,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 4423 transitions. [2022-03-03 18:42:43,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:43,718 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:43,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:43,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable639 [2022-03-03 18:42:43,718 INFO L402 AbstractCegarLoop]: === Iteration 641 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:43,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:43,719 INFO L85 PathProgramCache]: Analyzing trace with hash 11457143, now seen corresponding path program 636 times [2022-03-03 18:42:43,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:43,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755788805] [2022-03-03 18:42:43,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:43,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:43,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:43,841 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:43,841 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755788805] [2022-03-03 18:42:43,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755788805] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:43,841 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:43,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:43,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132136791] [2022-03-03 18:42:43,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:43,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:43,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:43,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:43,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:43,842 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) [2022-03-03 18:42:43,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:43,947 INFO L93 Difference]: Finished difference Result 2064 states and 7444 transitions. [2022-03-03 18:42:43,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:43,947 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:43,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:43,951 INFO L225 Difference]: With dead ends: 2064 [2022-03-03 18:42:43,952 INFO L226 Difference]: Without dead ends: 1757 [2022-03-03 18:42:43,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:43,952 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 101 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:43,952 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] [2022-03-03 18:42:43,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2022-03-03 18:42:43,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1080. [2022-03-03 18:42:43,970 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) [2022-03-03 18:42:43,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 4140 transitions. [2022-03-03 18:42:43,972 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 4140 transitions. Word has length 25 [2022-03-03 18:42:43,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:43,972 INFO L470 AbstractCegarLoop]: Abstraction has 1080 states and 4140 transitions. [2022-03-03 18:42:43,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:43,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 4140 transitions. [2022-03-03 18:42:43,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:43,974 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:43,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:43,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable640 [2022-03-03 18:42:43,974 INFO L402 AbstractCegarLoop]: === Iteration 642 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:43,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:43,974 INFO L85 PathProgramCache]: Analyzing trace with hash 104010773, now seen corresponding path program 637 times [2022-03-03 18:42:43,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:43,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970271958] [2022-03-03 18:42:43,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:43,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:44,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:44,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:44,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970271958] [2022-03-03 18:42:44,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970271958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:44,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:44,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:44,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89763908] [2022-03-03 18:42:44,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:44,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:44,094 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:44,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:44,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:44,094 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) [2022-03-03 18:42:44,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:44,214 INFO L93 Difference]: Finished difference Result 2149 states and 7748 transitions. [2022-03-03 18:42:44,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:44,215 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 [2022-03-03 18:42:44,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:44,219 INFO L225 Difference]: With dead ends: 2149 [2022-03-03 18:42:44,219 INFO L226 Difference]: Without dead ends: 1960 [2022-03-03 18:42:44,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:44,220 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 103 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:44,220 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] [2022-03-03 18:42:44,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states. [2022-03-03 18:42:44,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 1138. [2022-03-03 18:42:44,238 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) [2022-03-03 18:42:44,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 4357 transitions. [2022-03-03 18:42:44,241 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 4357 transitions. Word has length 25 [2022-03-03 18:42:44,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:44,241 INFO L470 AbstractCegarLoop]: Abstraction has 1138 states and 4357 transitions. [2022-03-03 18:42:44,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:44,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 4357 transitions. [2022-03-03 18:42:44,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:44,243 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:44,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:44,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable641 [2022-03-03 18:42:44,243 INFO L402 AbstractCegarLoop]: === Iteration 643 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:44,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:44,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1296477205, now seen corresponding path program 638 times [2022-03-03 18:42:44,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:44,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695774009] [2022-03-03 18:42:44,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:44,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:44,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:44,364 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:44,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695774009] [2022-03-03 18:42:44,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695774009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:44,364 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:44,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:44,364 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919825891] [2022-03-03 18:42:44,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:44,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:44,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:44,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:44,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:44,365 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) [2022-03-03 18:42:44,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:44,488 INFO L93 Difference]: Finished difference Result 2143 states and 7703 transitions. [2022-03-03 18:42:44,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:44,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:44,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:44,493 INFO L225 Difference]: With dead ends: 2143 [2022-03-03 18:42:44,493 INFO L226 Difference]: Without dead ends: 1932 [2022-03-03 18:42:44,493 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 [2022-03-03 18:42:44,493 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 [2022-03-03 18:42:44,493 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] [2022-03-03 18:42:44,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2022-03-03 18:42:44,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1110. [2022-03-03 18:42:44,511 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) [2022-03-03 18:42:44,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 4255 transitions. [2022-03-03 18:42:44,514 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 4255 transitions. Word has length 25 [2022-03-03 18:42:44,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:44,514 INFO L470 AbstractCegarLoop]: Abstraction has 1110 states and 4255 transitions. [2022-03-03 18:42:44,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:44,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 4255 transitions. [2022-03-03 18:42:44,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:44,516 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:44,516 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] [2022-03-03 18:42:44,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable642 [2022-03-03 18:42:44,516 INFO L402 AbstractCegarLoop]: === Iteration 644 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:44,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:44,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1206570249, now seen corresponding path program 639 times [2022-03-03 18:42:44,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:44,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727332091] [2022-03-03 18:42:44,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:44,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:44,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:44,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:44,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727332091] [2022-03-03 18:42:44,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727332091] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:44,638 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:44,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:44,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261414150] [2022-03-03 18:42:44,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:44,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:44,638 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:44,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:44,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:44,639 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) [2022-03-03 18:42:44,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:44,754 INFO L93 Difference]: Finished difference Result 2161 states and 7766 transitions. [2022-03-03 18:42:44,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:44,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:44,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:44,759 INFO L225 Difference]: With dead ends: 2161 [2022-03-03 18:42:44,759 INFO L226 Difference]: Without dead ends: 1972 [2022-03-03 18:42:44,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:44,759 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 105 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:44,760 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] [2022-03-03 18:42:44,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2022-03-03 18:42:44,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1173. [2022-03-03 18:42:44,780 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) [2022-03-03 18:42:44,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 4462 transitions. [2022-03-03 18:42:44,782 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 4462 transitions. Word has length 25 [2022-03-03 18:42:44,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:44,782 INFO L470 AbstractCegarLoop]: Abstraction has 1173 states and 4462 transitions. [2022-03-03 18:42:44,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:44,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 4462 transitions. [2022-03-03 18:42:44,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:44,784 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:44,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:44,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable643 [2022-03-03 18:42:44,785 INFO L402 AbstractCegarLoop]: === Iteration 645 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:44,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:44,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1192350699, now seen corresponding path program 640 times [2022-03-03 18:42:44,785 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:44,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376155807] [2022-03-03 18:42:44,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:44,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:44,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:44,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:44,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376155807] [2022-03-03 18:42:44,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376155807] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:44,913 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:44,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:44,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789117918] [2022-03-03 18:42:44,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:44,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:44,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:44,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:44,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:44,914 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) [2022-03-03 18:42:45,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:45,022 INFO L93 Difference]: Finished difference Result 2066 states and 7464 transitions. [2022-03-03 18:42:45,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:45,022 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 [2022-03-03 18:42:45,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:45,026 INFO L225 Difference]: With dead ends: 2066 [2022-03-03 18:42:45,026 INFO L226 Difference]: Without dead ends: 1781 [2022-03-03 18:42:45,026 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 [2022-03-03 18:42:45,026 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 109 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:45,027 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] [2022-03-03 18:42:45,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2022-03-03 18:42:45,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1110. [2022-03-03 18:42:45,045 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) [2022-03-03 18:42:45,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 4225 transitions. [2022-03-03 18:42:45,048 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 4225 transitions. Word has length 25 [2022-03-03 18:42:45,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:45,048 INFO L470 AbstractCegarLoop]: Abstraction has 1110 states and 4225 transitions. [2022-03-03 18:42:45,048 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) [2022-03-03 18:42:45,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 4225 transitions. [2022-03-03 18:42:45,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:45,049 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:45,049 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] [2022-03-03 18:42:45,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable644 [2022-03-03 18:42:45,050 INFO L402 AbstractCegarLoop]: === Iteration 646 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:45,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:45,050 INFO L85 PathProgramCache]: Analyzing trace with hash -240122859, now seen corresponding path program 641 times [2022-03-03 18:42:45,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:45,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077936420] [2022-03-03 18:42:45,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:45,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:45,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:45,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:45,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077936420] [2022-03-03 18:42:45,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077936420] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:45,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:45,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:45,179 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101745166] [2022-03-03 18:42:45,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:45,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:45,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:45,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:45,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:45,179 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) [2022-03-03 18:42:45,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:45,297 INFO L93 Difference]: Finished difference Result 2136 states and 7661 transitions. [2022-03-03 18:42:45,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:45,297 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 [2022-03-03 18:42:45,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:45,302 INFO L225 Difference]: With dead ends: 2136 [2022-03-03 18:42:45,302 INFO L226 Difference]: Without dead ends: 1953 [2022-03-03 18:42:45,302 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 [2022-03-03 18:42:45,302 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 101 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:45,302 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] [2022-03-03 18:42:45,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2022-03-03 18:42:45,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1154. [2022-03-03 18:42:45,321 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) [2022-03-03 18:42:45,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 4377 transitions. [2022-03-03 18:42:45,323 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 4377 transitions. Word has length 25 [2022-03-03 18:42:45,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:45,324 INFO L470 AbstractCegarLoop]: Abstraction has 1154 states and 4377 transitions. [2022-03-03 18:42:45,324 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) [2022-03-03 18:42:45,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 4377 transitions. [2022-03-03 18:42:45,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:45,325 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:45,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:45,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable645 [2022-03-03 18:42:45,326 INFO L402 AbstractCegarLoop]: === Iteration 647 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:45,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:45,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1309641865, now seen corresponding path program 642 times [2022-03-03 18:42:45,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:45,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816919606] [2022-03-03 18:42:45,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:45,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:45,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:45,456 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:45,456 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816919606] [2022-03-03 18:42:45,456 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816919606] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:45,456 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:45,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:45,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544077258] [2022-03-03 18:42:45,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:45,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:45,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:45,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:45,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:45,457 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) [2022-03-03 18:42:45,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:45,563 INFO L93 Difference]: Finished difference Result 2047 states and 7379 transitions. [2022-03-03 18:42:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:45,563 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:45,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:45,567 INFO L225 Difference]: With dead ends: 2047 [2022-03-03 18:42:45,568 INFO L226 Difference]: Without dead ends: 1751 [2022-03-03 18:42:45,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:45,568 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 107 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:45,568 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] [2022-03-03 18:42:45,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2022-03-03 18:42:45,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1080. [2022-03-03 18:42:45,595 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) [2022-03-03 18:42:45,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 4125 transitions. [2022-03-03 18:42:45,598 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 4125 transitions. Word has length 25 [2022-03-03 18:42:45,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:45,598 INFO L470 AbstractCegarLoop]: Abstraction has 1080 states and 4125 transitions. [2022-03-03 18:42:45,598 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) [2022-03-03 18:42:45,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 4125 transitions. [2022-03-03 18:42:45,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:45,599 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:45,600 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] [2022-03-03 18:42:45,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable646 [2022-03-03 18:42:45,600 INFO L402 AbstractCegarLoop]: === Iteration 648 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:45,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:45,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1076407283, now seen corresponding path program 643 times [2022-03-03 18:42:45,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:45,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790135352] [2022-03-03 18:42:45,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:45,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:45,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:45,719 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:45,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790135352] [2022-03-03 18:42:45,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790135352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:45,719 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:45,719 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:45,719 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476561256] [2022-03-03 18:42:45,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:45,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:45,719 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:45,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:45,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:45,719 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) [2022-03-03 18:42:45,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:45,844 INFO L93 Difference]: Finished difference Result 2118 states and 7639 transitions. [2022-03-03 18:42:45,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:45,845 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:45,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:45,849 INFO L225 Difference]: With dead ends: 2118 [2022-03-03 18:42:45,849 INFO L226 Difference]: Without dead ends: 1931 [2022-03-03 18:42:45,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:45,849 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 [2022-03-03 18:42:45,849 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] [2022-03-03 18:42:45,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1931 states. [2022-03-03 18:42:45,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1931 to 1130. [2022-03-03 18:42:45,868 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) [2022-03-03 18:42:45,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 4314 transitions. [2022-03-03 18:42:45,871 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 4314 transitions. Word has length 25 [2022-03-03 18:42:45,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:45,871 INFO L470 AbstractCegarLoop]: Abstraction has 1130 states and 4314 transitions. [2022-03-03 18:42:45,871 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) [2022-03-03 18:42:45,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 4314 transitions. [2022-03-03 18:42:45,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:45,873 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:45,873 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] [2022-03-03 18:42:45,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable647 [2022-03-03 18:42:45,873 INFO L402 AbstractCegarLoop]: === Iteration 649 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:45,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:45,873 INFO L85 PathProgramCache]: Analyzing trace with hash -2137497387, now seen corresponding path program 644 times [2022-03-03 18:42:45,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:45,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857761438] [2022-03-03 18:42:45,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:45,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:45,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:45,993 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:45,993 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857761438] [2022-03-03 18:42:45,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857761438] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:45,993 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:45,993 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:45,993 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754915170] [2022-03-03 18:42:45,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:45,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:45,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:45,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:45,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:45,994 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) [2022-03-03 18:42:46,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:46,115 INFO L93 Difference]: Finished difference Result 2114 states and 7599 transitions. [2022-03-03 18:42:46,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:46,115 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 [2022-03-03 18:42:46,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:46,119 INFO L225 Difference]: With dead ends: 2114 [2022-03-03 18:42:46,119 INFO L226 Difference]: Without dead ends: 1903 [2022-03-03 18:42:46,119 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 [2022-03-03 18:42:46,120 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 [2022-03-03 18:42:46,120 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] [2022-03-03 18:42:46,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states. [2022-03-03 18:42:46,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 1102. [2022-03-03 18:42:46,138 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) [2022-03-03 18:42:46,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 4212 transitions. [2022-03-03 18:42:46,140 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 4212 transitions. Word has length 25 [2022-03-03 18:42:46,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:46,140 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 4212 transitions. [2022-03-03 18:42:46,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:46,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 4212 transitions. [2022-03-03 18:42:46,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:46,142 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:46,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:46,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable648 [2022-03-03 18:42:46,142 INFO L402 AbstractCegarLoop]: === Iteration 650 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:46,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:46,143 INFO L85 PathProgramCache]: Analyzing trace with hash -234173739, now seen corresponding path program 645 times [2022-03-03 18:42:46,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:46,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538908748] [2022-03-03 18:42:46,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:46,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:46,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:46,263 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:46,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538908748] [2022-03-03 18:42:46,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538908748] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:46,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:46,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:46,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558351871] [2022-03-03 18:42:46,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:46,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:46,263 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:46,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:46,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:46,264 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) [2022-03-03 18:42:46,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:46,376 INFO L93 Difference]: Finished difference Result 2115 states and 7611 transitions. [2022-03-03 18:42:46,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:46,376 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 [2022-03-03 18:42:46,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:46,381 INFO L225 Difference]: With dead ends: 2115 [2022-03-03 18:42:46,381 INFO L226 Difference]: Without dead ends: 1928 [2022-03-03 18:42:46,381 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 [2022-03-03 18:42:46,382 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 104 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:46,382 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] [2022-03-03 18:42:46,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2022-03-03 18:42:46,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1148. [2022-03-03 18:42:46,401 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) [2022-03-03 18:42:46,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 4369 transitions. [2022-03-03 18:42:46,403 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 4369 transitions. Word has length 25 [2022-03-03 18:42:46,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:46,403 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 4369 transitions. [2022-03-03 18:42:46,403 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) [2022-03-03 18:42:46,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 4369 transitions. [2022-03-03 18:42:46,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:46,405 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:46,405 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] [2022-03-03 18:42:46,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable649 [2022-03-03 18:42:46,405 INFO L402 AbstractCegarLoop]: === Iteration 651 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:46,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:46,406 INFO L85 PathProgramCache]: Analyzing trace with hash -2021555499, now seen corresponding path program 646 times [2022-03-03 18:42:46,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:46,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221814828] [2022-03-03 18:42:46,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:46,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:46,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:46,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:46,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221814828] [2022-03-03 18:42:46,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221814828] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:46,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:46,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:46,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599644172] [2022-03-03 18:42:46,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:46,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:46,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:46,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:46,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:46,530 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) [2022-03-03 18:42:46,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:46,627 INFO L93 Difference]: Finished difference Result 2022 states and 7315 transitions. [2022-03-03 18:42:46,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:46,627 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:46,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:46,631 INFO L225 Difference]: With dead ends: 2022 [2022-03-03 18:42:46,631 INFO L226 Difference]: Without dead ends: 1754 [2022-03-03 18:42:46,631 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 [2022-03-03 18:42:46,631 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 114 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:46,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 111 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:46,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2022-03-03 18:42:46,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1102. [2022-03-03 18:42:46,649 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) [2022-03-03 18:42:46,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 4190 transitions. [2022-03-03 18:42:46,651 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 4190 transitions. Word has length 25 [2022-03-03 18:42:46,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:46,651 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 4190 transitions. [2022-03-03 18:42:46,651 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) [2022-03-03 18:42:46,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 4190 transitions. [2022-03-03 18:42:46,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:46,653 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:46,653 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] [2022-03-03 18:42:46,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable650 [2022-03-03 18:42:46,653 INFO L402 AbstractCegarLoop]: === Iteration 652 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:46,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:46,653 INFO L85 PathProgramCache]: Analyzing trace with hash 153831223, now seen corresponding path program 647 times [2022-03-03 18:42:46,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:46,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638669293] [2022-03-03 18:42:46,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:46,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:46,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:46,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:46,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638669293] [2022-03-03 18:42:46,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638669293] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:46,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:46,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:46,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156855224] [2022-03-03 18:42:46,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:46,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:46,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:46,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:46,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:46,778 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) [2022-03-03 18:42:46,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:46,907 INFO L93 Difference]: Finished difference Result 2109 states and 7570 transitions. [2022-03-03 18:42:46,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:46,907 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 [2022-03-03 18:42:46,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:46,912 INFO L225 Difference]: With dead ends: 2109 [2022-03-03 18:42:46,912 INFO L226 Difference]: Without dead ends: 1926 [2022-03-03 18:42:46,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:46,912 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 [2022-03-03 18:42:46,912 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] [2022-03-03 18:42:46,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2022-03-03 18:42:46,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1146. [2022-03-03 18:42:46,930 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) [2022-03-03 18:42:46,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 4342 transitions. [2022-03-03 18:42:46,933 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 4342 transitions. Word has length 25 [2022-03-03 18:42:46,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:46,933 INFO L470 AbstractCegarLoop]: Abstraction has 1146 states and 4342 transitions. [2022-03-03 18:42:46,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:46,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 4342 transitions. [2022-03-03 18:42:46,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:46,935 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:46,935 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:46,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable651 [2022-03-03 18:42:46,935 INFO L402 AbstractCegarLoop]: === Iteration 653 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:46,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:46,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1358480405, now seen corresponding path program 648 times [2022-03-03 18:42:46,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:46,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356480054] [2022-03-03 18:42:46,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:46,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:46,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:47,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:47,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:47,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356480054] [2022-03-03 18:42:47,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356480054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:47,063 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:47,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:47,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453168172] [2022-03-03 18:42:47,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:47,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:47,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:47,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:47,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:47,063 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) [2022-03-03 18:42:47,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:47,161 INFO L93 Difference]: Finished difference Result 2020 states and 7288 transitions. [2022-03-03 18:42:47,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:47,161 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 [2022-03-03 18:42:47,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:47,165 INFO L225 Difference]: With dead ends: 2020 [2022-03-03 18:42:47,165 INFO L226 Difference]: Without dead ends: 1709 [2022-03-03 18:42:47,166 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 [2022-03-03 18:42:47,166 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 103 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:47,166 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] [2022-03-03 18:42:47,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2022-03-03 18:42:47,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1057. [2022-03-03 18:42:47,183 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) [2022-03-03 18:42:47,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 4063 transitions. [2022-03-03 18:42:47,185 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 4063 transitions. Word has length 25 [2022-03-03 18:42:47,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:47,185 INFO L470 AbstractCegarLoop]: Abstraction has 1057 states and 4063 transitions. [2022-03-03 18:42:47,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:47,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 4063 transitions. [2022-03-03 18:42:47,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:47,187 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:47,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:47,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable652 [2022-03-03 18:42:47,187 INFO L402 AbstractCegarLoop]: === Iteration 654 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:47,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:47,187 INFO L85 PathProgramCache]: Analyzing trace with hash 826629269, now seen corresponding path program 649 times [2022-03-03 18:42:47,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:47,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409516778] [2022-03-03 18:42:47,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:47,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:47,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:47,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:47,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409516778] [2022-03-03 18:42:47,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409516778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:47,310 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:47,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:47,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248904155] [2022-03-03 18:42:47,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:47,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:47,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:47,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:47,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:47,310 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) [2022-03-03 18:42:47,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:47,418 INFO L93 Difference]: Finished difference Result 2000 states and 7196 transitions. [2022-03-03 18:42:47,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:47,419 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 [2022-03-03 18:42:47,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:47,423 INFO L225 Difference]: With dead ends: 2000 [2022-03-03 18:42:47,423 INFO L226 Difference]: Without dead ends: 1811 [2022-03-03 18:42:47,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:47,423 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 101 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:47,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 107 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:47,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2022-03-03 18:42:47,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1087. [2022-03-03 18:42:47,442 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) [2022-03-03 18:42:47,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 4156 transitions. [2022-03-03 18:42:47,444 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 4156 transitions. Word has length 25 [2022-03-03 18:42:47,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:47,444 INFO L470 AbstractCegarLoop]: Abstraction has 1087 states and 4156 transitions. [2022-03-03 18:42:47,444 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) [2022-03-03 18:42:47,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 4156 transitions. [2022-03-03 18:42:47,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:47,446 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:47,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:47,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable653 [2022-03-03 18:42:47,446 INFO L402 AbstractCegarLoop]: === Iteration 655 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:47,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:47,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1216707725, now seen corresponding path program 650 times [2022-03-03 18:42:47,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:47,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149219374] [2022-03-03 18:42:47,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:47,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:47,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:47,571 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:47,571 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149219374] [2022-03-03 18:42:47,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149219374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:47,571 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:47,571 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:47,571 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270981644] [2022-03-03 18:42:47,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:47,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:47,572 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:47,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:47,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:47,572 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) [2022-03-03 18:42:47,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:47,702 INFO L93 Difference]: Finished difference Result 1998 states and 7161 transitions. [2022-03-03 18:42:47,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:47,703 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 [2022-03-03 18:42:47,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:47,708 INFO L225 Difference]: With dead ends: 1998 [2022-03-03 18:42:47,708 INFO L226 Difference]: Without dead ends: 1781 [2022-03-03 18:42:47,708 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 [2022-03-03 18:42:47,708 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 97 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:47,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 111 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:47,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2022-03-03 18:42:47,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1057. [2022-03-03 18:42:47,742 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) [2022-03-03 18:42:47,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 4051 transitions. [2022-03-03 18:42:47,745 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 4051 transitions. Word has length 25 [2022-03-03 18:42:47,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:47,745 INFO L470 AbstractCegarLoop]: Abstraction has 1057 states and 4051 transitions. [2022-03-03 18:42:47,745 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) [2022-03-03 18:42:47,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 4051 transitions. [2022-03-03 18:42:47,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:47,748 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:47,748 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] [2022-03-03 18:42:47,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable654 [2022-03-03 18:42:47,748 INFO L402 AbstractCegarLoop]: === Iteration 656 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:47,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:47,748 INFO L85 PathProgramCache]: Analyzing trace with hash 30602389, now seen corresponding path program 651 times [2022-03-03 18:42:47,749 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:47,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31679244] [2022-03-03 18:42:47,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:47,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:47,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:47,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:47,898 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:47,898 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31679244] [2022-03-03 18:42:47,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31679244] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:47,898 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:47,898 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:47,898 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404353158] [2022-03-03 18:42:47,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:47,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:47,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:47,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:47,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:47,899 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) [2022-03-03 18:42:48,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:48,027 INFO L93 Difference]: Finished difference Result 1982 states and 7121 transitions. [2022-03-03 18:42:48,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:48,028 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 [2022-03-03 18:42:48,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:48,031 INFO L225 Difference]: With dead ends: 1982 [2022-03-03 18:42:48,031 INFO L226 Difference]: Without dead ends: 1793 [2022-03-03 18:42:48,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:48,032 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 102 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:48,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 106 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:48,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2022-03-03 18:42:48,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1081. [2022-03-03 18:42:48,046 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) [2022-03-03 18:42:48,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 4127 transitions. [2022-03-03 18:42:48,048 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 4127 transitions. Word has length 25 [2022-03-03 18:42:48,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:48,048 INFO L470 AbstractCegarLoop]: Abstraction has 1081 states and 4127 transitions. [2022-03-03 18:42:48,048 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) [2022-03-03 18:42:48,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 4127 transitions. [2022-03-03 18:42:48,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:48,050 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:48,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:48,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable655 [2022-03-03 18:42:48,050 INFO L402 AbstractCegarLoop]: === Iteration 657 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:48,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:48,050 INFO L85 PathProgramCache]: Analyzing trace with hash 586390677, now seen corresponding path program 652 times [2022-03-03 18:42:48,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:48,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126443240] [2022-03-03 18:42:48,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:48,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:48,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:48,164 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:48,164 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126443240] [2022-03-03 18:42:48,164 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126443240] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:48,164 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:48,164 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:48,164 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250041819] [2022-03-03 18:42:48,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:48,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:48,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:48,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:48,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:48,165 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) [2022-03-03 18:42:48,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:48,267 INFO L93 Difference]: Finished difference Result 1968 states and 7052 transitions. [2022-03-03 18:42:48,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:48,267 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 [2022-03-03 18:42:48,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:48,271 INFO L225 Difference]: With dead ends: 1968 [2022-03-03 18:42:48,271 INFO L226 Difference]: Without dead ends: 1769 [2022-03-03 18:42:48,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:48,271 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 101 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:48,271 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] [2022-03-03 18:42:48,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2022-03-03 18:42:48,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1057. [2022-03-03 18:42:48,285 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) [2022-03-03 18:42:48,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 4039 transitions. [2022-03-03 18:42:48,287 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 4039 transitions. Word has length 25 [2022-03-03 18:42:48,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:48,288 INFO L470 AbstractCegarLoop]: Abstraction has 1057 states and 4039 transitions. [2022-03-03 18:42:48,288 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) [2022-03-03 18:42:48,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 4039 transitions. [2022-03-03 18:42:48,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:48,289 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:48,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:48,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable656 [2022-03-03 18:42:48,289 INFO L402 AbstractCegarLoop]: === Iteration 658 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:48,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:48,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1012950003, now seen corresponding path program 653 times [2022-03-03 18:42:48,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:48,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206460988] [2022-03-03 18:42:48,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:48,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:48,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:48,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:48,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206460988] [2022-03-03 18:42:48,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206460988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:48,403 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:48,403 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:48,403 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019733166] [2022-03-03 18:42:48,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:48,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:48,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:48,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:48,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:48,404 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) [2022-03-03 18:42:48,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:48,510 INFO L93 Difference]: Finished difference Result 1978 states and 7099 transitions. [2022-03-03 18:42:48,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:48,511 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 [2022-03-03 18:42:48,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:48,514 INFO L225 Difference]: With dead ends: 1978 [2022-03-03 18:42:48,514 INFO L226 Difference]: Without dead ends: 1791 [2022-03-03 18:42:48,514 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 [2022-03-03 18:42:48,514 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 [2022-03-03 18:42:48,514 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] [2022-03-03 18:42:48,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2022-03-03 18:42:48,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1081. [2022-03-03 18:42:48,529 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) [2022-03-03 18:42:48,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 4115 transitions. [2022-03-03 18:42:48,531 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 4115 transitions. Word has length 25 [2022-03-03 18:42:48,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:48,531 INFO L470 AbstractCegarLoop]: Abstraction has 1081 states and 4115 transitions. [2022-03-03 18:42:48,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:48,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 4115 transitions. [2022-03-03 18:42:48,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:48,532 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:48,533 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] [2022-03-03 18:42:48,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable657 [2022-03-03 18:42:48,533 INFO L402 AbstractCegarLoop]: === Iteration 659 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:48,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:48,533 INFO L85 PathProgramCache]: Analyzing trace with hash 806142037, now seen corresponding path program 654 times [2022-03-03 18:42:48,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:48,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837149911] [2022-03-03 18:42:48,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:48,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:48,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:48,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:48,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837149911] [2022-03-03 18:42:48,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837149911] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:48,648 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:48,648 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:48,648 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839206805] [2022-03-03 18:42:48,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:48,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:48,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:48,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:48,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:48,648 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) [2022-03-03 18:42:48,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:48,750 INFO L93 Difference]: Finished difference Result 1966 states and 7035 transitions. [2022-03-03 18:42:48,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:48,750 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 [2022-03-03 18:42:48,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:48,753 INFO L225 Difference]: With dead ends: 1966 [2022-03-03 18:42:48,754 INFO L226 Difference]: Without dead ends: 1755 [2022-03-03 18:42:48,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:48,754 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 117 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:48,754 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] [2022-03-03 18:42:48,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2022-03-03 18:42:48,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1045. [2022-03-03 18:42:48,768 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) [2022-03-03 18:42:48,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 4001 transitions. [2022-03-03 18:42:48,770 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 4001 transitions. Word has length 25 [2022-03-03 18:42:48,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:48,770 INFO L470 AbstractCegarLoop]: Abstraction has 1045 states and 4001 transitions. [2022-03-03 18:42:48,770 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) [2022-03-03 18:42:48,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 4001 transitions. [2022-03-03 18:42:48,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:48,771 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:48,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:48,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable658 [2022-03-03 18:42:48,771 INFO L402 AbstractCegarLoop]: === Iteration 660 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:48,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:48,772 INFO L85 PathProgramCache]: Analyzing trace with hash 92169079, now seen corresponding path program 655 times [2022-03-03 18:42:48,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:48,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671488473] [2022-03-03 18:42:48,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:48,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:48,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:48,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:48,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671488473] [2022-03-03 18:42:48,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671488473] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:48,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:48,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:48,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131375840] [2022-03-03 18:42:48,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:48,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:48,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:48,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:48,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:48,889 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) [2022-03-03 18:42:49,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:49,003 INFO L93 Difference]: Finished difference Result 2066 states and 7395 transitions. [2022-03-03 18:42:49,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:49,003 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 [2022-03-03 18:42:49,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:49,007 INFO L225 Difference]: With dead ends: 2066 [2022-03-03 18:42:49,007 INFO L226 Difference]: Without dead ends: 1877 [2022-03-03 18:42:49,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:49,008 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 [2022-03-03 18:42:49,008 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] [2022-03-03 18:42:49,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2022-03-03 18:42:49,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1045. [2022-03-03 18:42:49,022 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) [2022-03-03 18:42:49,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 3971 transitions. [2022-03-03 18:42:49,024 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 3971 transitions. Word has length 25 [2022-03-03 18:42:49,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:49,024 INFO L470 AbstractCegarLoop]: Abstraction has 1045 states and 3971 transitions. [2022-03-03 18:42:49,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:49,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 3971 transitions. [2022-03-03 18:42:49,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:49,026 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:49,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:49,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable659 [2022-03-03 18:42:49,026 INFO L402 AbstractCegarLoop]: === Iteration 661 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:49,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:49,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1951167915, now seen corresponding path program 656 times [2022-03-03 18:42:49,026 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:49,026 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397114121] [2022-03-03 18:42:49,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:49,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:49,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:49,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:49,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397114121] [2022-03-03 18:42:49,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397114121] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:49,146 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:49,146 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:49,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812631255] [2022-03-03 18:42:49,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:49,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:49,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:49,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:49,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:49,146 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) [2022-03-03 18:42:49,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:49,266 INFO L93 Difference]: Finished difference Result 2064 states and 7360 transitions. [2022-03-03 18:42:49,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:49,267 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 [2022-03-03 18:42:49,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:49,270 INFO L225 Difference]: With dead ends: 2064 [2022-03-03 18:42:49,270 INFO L226 Difference]: Without dead ends: 1847 [2022-03-03 18:42:49,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:49,270 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 [2022-03-03 18:42:49,271 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] [2022-03-03 18:42:49,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2022-03-03 18:42:49,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1015. [2022-03-03 18:42:49,285 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) [2022-03-03 18:42:49,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 3863 transitions. [2022-03-03 18:42:49,287 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 3863 transitions. Word has length 25 [2022-03-03 18:42:49,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:49,287 INFO L470 AbstractCegarLoop]: Abstraction has 1015 states and 3863 transitions. [2022-03-03 18:42:49,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:49,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 3863 transitions. [2022-03-03 18:42:49,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:49,289 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:49,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:49,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable660 [2022-03-03 18:42:49,289 INFO L402 AbstractCegarLoop]: === Iteration 662 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:49,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:49,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1450421099, now seen corresponding path program 657 times [2022-03-03 18:42:49,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:49,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770476965] [2022-03-03 18:42:49,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:49,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:49,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:49,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:49,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770476965] [2022-03-03 18:42:49,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770476965] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:49,410 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:49,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:49,410 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505020610] [2022-03-03 18:42:49,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:49,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:49,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:49,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:49,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:49,411 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) [2022-03-03 18:42:49,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:49,529 INFO L93 Difference]: Finished difference Result 2072 states and 7393 transitions. [2022-03-03 18:42:49,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:49,529 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:49,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:49,533 INFO L225 Difference]: With dead ends: 2072 [2022-03-03 18:42:49,533 INFO L226 Difference]: Without dead ends: 1883 [2022-03-03 18:42:49,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:49,533 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 [2022-03-03 18:42:49,533 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] [2022-03-03 18:42:49,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2022-03-03 18:42:49,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1078. [2022-03-03 18:42:49,548 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) [2022-03-03 18:42:49,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 4070 transitions. [2022-03-03 18:42:49,550 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 4070 transitions. Word has length 25 [2022-03-03 18:42:49,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:49,550 INFO L470 AbstractCegarLoop]: Abstraction has 1078 states and 4070 transitions. [2022-03-03 18:42:49,550 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) [2022-03-03 18:42:49,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 4070 transitions. [2022-03-03 18:42:49,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:49,552 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:49,552 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] [2022-03-03 18:42:49,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable661 [2022-03-03 18:42:49,552 INFO L402 AbstractCegarLoop]: === Iteration 663 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:49,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:49,552 INFO L85 PathProgramCache]: Analyzing trace with hash -2006209387, now seen corresponding path program 658 times [2022-03-03 18:42:49,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:49,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391791356] [2022-03-03 18:42:49,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:49,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:49,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:49,674 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:49,674 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391791356] [2022-03-03 18:42:49,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391791356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:49,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:49,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:49,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152239985] [2022-03-03 18:42:49,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:49,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:49,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:49,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:49,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:49,675 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) [2022-03-03 18:42:49,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:49,771 INFO L93 Difference]: Finished difference Result 1977 states and 7091 transitions. [2022-03-03 18:42:49,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:49,772 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 [2022-03-03 18:42:49,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:49,775 INFO L225 Difference]: With dead ends: 1977 [2022-03-03 18:42:49,775 INFO L226 Difference]: Without dead ends: 1692 [2022-03-03 18:42:49,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:49,775 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 [2022-03-03 18:42:49,775 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] [2022-03-03 18:42:49,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2022-03-03 18:42:49,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1015. [2022-03-03 18:42:49,789 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) [2022-03-03 18:42:49,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 3832 transitions. [2022-03-03 18:42:49,791 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 3832 transitions. Word has length 25 [2022-03-03 18:42:49,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:49,791 INFO L470 AbstractCegarLoop]: Abstraction has 1015 states and 3832 transitions. [2022-03-03 18:42:49,791 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) [2022-03-03 18:42:49,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 3832 transitions. [2022-03-03 18:42:49,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:49,792 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:49,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:49,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable662 [2022-03-03 18:42:49,792 INFO L402 AbstractCegarLoop]: === Iteration 664 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:49,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:49,792 INFO L85 PathProgramCache]: Analyzing trace with hash -468073485, now seen corresponding path program 659 times [2022-03-03 18:42:49,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:49,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21791923] [2022-03-03 18:42:49,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:49,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:49,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:49,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:49,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21791923] [2022-03-03 18:42:49,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21791923] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:49,916 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:49,916 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:49,916 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348012692] [2022-03-03 18:42:49,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:49,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:49,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:49,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:49,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:49,917 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) [2022-03-03 18:42:50,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:50,040 INFO L93 Difference]: Finished difference Result 2053 states and 7306 transitions. [2022-03-03 18:42:50,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:50,040 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 [2022-03-03 18:42:50,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:50,044 INFO L225 Difference]: With dead ends: 2053 [2022-03-03 18:42:50,044 INFO L226 Difference]: Without dead ends: 1866 [2022-03-03 18:42:50,044 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 [2022-03-03 18:42:50,044 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 [2022-03-03 18:42:50,044 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] [2022-03-03 18:42:50,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2022-03-03 18:42:50,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1061. [2022-03-03 18:42:50,059 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) [2022-03-03 18:42:50,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 3989 transitions. [2022-03-03 18:42:50,061 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 3989 transitions. Word has length 25 [2022-03-03 18:42:50,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:50,061 INFO L470 AbstractCegarLoop]: Abstraction has 1061 states and 3989 transitions. [2022-03-03 18:42:50,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:50,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 3989 transitions. [2022-03-03 18:42:50,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:50,063 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:50,063 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] [2022-03-03 18:42:50,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable663 [2022-03-03 18:42:50,063 INFO L402 AbstractCegarLoop]: === Iteration 665 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:50,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:50,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1469504213, now seen corresponding path program 660 times [2022-03-03 18:42:50,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:50,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325289194] [2022-03-03 18:42:50,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:50,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:50,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:50,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:50,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325289194] [2022-03-03 18:42:50,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325289194] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:50,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:50,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:50,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452992403] [2022-03-03 18:42:50,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:50,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:50,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:50,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:50,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:50,180 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) [2022-03-03 18:42:50,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:50,279 INFO L93 Difference]: Finished difference Result 1960 states and 7010 transitions. [2022-03-03 18:42:50,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:50,280 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:50,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:50,283 INFO L225 Difference]: With dead ends: 1960 [2022-03-03 18:42:50,283 INFO L226 Difference]: Without dead ends: 1653 [2022-03-03 18:42:50,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:50,283 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 [2022-03-03 18:42:50,284 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] [2022-03-03 18:42:50,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2022-03-03 18:42:50,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 976. [2022-03-03 18:42:50,297 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) [2022-03-03 18:42:50,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 3707 transitions. [2022-03-03 18:42:50,299 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 3707 transitions. Word has length 25 [2022-03-03 18:42:50,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:50,299 INFO L470 AbstractCegarLoop]: Abstraction has 976 states and 3707 transitions. [2022-03-03 18:42:50,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:50,299 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 3707 transitions. [2022-03-03 18:42:50,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:50,300 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:50,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:50,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable664 [2022-03-03 18:42:50,300 INFO L402 AbstractCegarLoop]: === Iteration 666 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:50,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:50,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1145126037, now seen corresponding path program 661 times [2022-03-03 18:42:50,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:50,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003022774] [2022-03-03 18:42:50,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:50,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:50,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:50,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:50,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003022774] [2022-03-03 18:42:50,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003022774] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:50,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:50,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:50,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986795259] [2022-03-03 18:42:50,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:50,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:50,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:50,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:50,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:50,419 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) [2022-03-03 18:42:50,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:50,534 INFO L93 Difference]: Finished difference Result 1957 states and 6997 transitions. [2022-03-03 18:42:50,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:50,534 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 [2022-03-03 18:42:50,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:50,538 INFO L225 Difference]: With dead ends: 1957 [2022-03-03 18:42:50,538 INFO L226 Difference]: Without dead ends: 1768 [2022-03-03 18:42:50,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:50,539 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 [2022-03-03 18:42:50,539 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] [2022-03-03 18:42:50,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-03-03 18:42:50,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1028. [2022-03-03 18:42:50,554 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) [2022-03-03 18:42:50,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 3903 transitions. [2022-03-03 18:42:50,556 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 3903 transitions. Word has length 25 [2022-03-03 18:42:50,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:50,556 INFO L470 AbstractCegarLoop]: Abstraction has 1028 states and 3903 transitions. [2022-03-03 18:42:50,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:50,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 3903 transitions. [2022-03-03 18:42:50,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:50,558 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:50,558 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:50,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable665 [2022-03-03 18:42:50,558 INFO L402 AbstractCegarLoop]: === Iteration 667 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:50,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:50,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1700914325, now seen corresponding path program 662 times [2022-03-03 18:42:50,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:50,558 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900213682] [2022-03-03 18:42:50,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:50,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:50,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:50,675 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:50,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900213682] [2022-03-03 18:42:50,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900213682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:50,675 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:50,675 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:50,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628211384] [2022-03-03 18:42:50,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:50,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:50,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:50,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:50,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:50,676 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) [2022-03-03 18:42:50,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:50,776 INFO L93 Difference]: Finished difference Result 1943 states and 6928 transitions. [2022-03-03 18:42:50,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:50,776 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 [2022-03-03 18:42:50,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:50,779 INFO L225 Difference]: With dead ends: 1943 [2022-03-03 18:42:50,779 INFO L226 Difference]: Without dead ends: 1744 [2022-03-03 18:42:50,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:50,780 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 120 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:50,780 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] [2022-03-03 18:42:50,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-03-03 18:42:50,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1004. [2022-03-03 18:42:50,794 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) [2022-03-03 18:42:50,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 3815 transitions. [2022-03-03 18:42:50,796 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 3815 transitions. Word has length 25 [2022-03-03 18:42:50,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:50,796 INFO L470 AbstractCegarLoop]: Abstraction has 1004 states and 3815 transitions. [2022-03-03 18:42:50,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:50,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 3815 transitions. [2022-03-03 18:42:50,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:50,797 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:50,797 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] [2022-03-03 18:42:50,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable666 [2022-03-03 18:42:50,797 INFO L402 AbstractCegarLoop]: === Iteration 668 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:50,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:50,798 INFO L85 PathProgramCache]: Analyzing trace with hash 527602679, now seen corresponding path program 663 times [2022-03-03 18:42:50,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:50,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223196933] [2022-03-03 18:42:50,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:50,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:50,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:50,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:50,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223196933] [2022-03-03 18:42:50,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223196933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:50,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:50,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:50,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854178344] [2022-03-03 18:42:50,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:50,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:50,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:50,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:50,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:50,918 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) [2022-03-03 18:42:51,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:51,026 INFO L93 Difference]: Finished difference Result 1918 states and 6823 transitions. [2022-03-03 18:42:51,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:51,027 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:51,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:51,030 INFO L225 Difference]: With dead ends: 1918 [2022-03-03 18:42:51,030 INFO L226 Difference]: Without dead ends: 1729 [2022-03-03 18:42:51,030 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 [2022-03-03 18:42:51,030 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 125 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:51,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 107 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:51,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2022-03-03 18:42:51,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1067. [2022-03-03 18:42:51,044 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) [2022-03-03 18:42:51,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 4022 transitions. [2022-03-03 18:42:51,046 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 4022 transitions. Word has length 25 [2022-03-03 18:42:51,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:51,047 INFO L470 AbstractCegarLoop]: Abstraction has 1067 states and 4022 transitions. [2022-03-03 18:42:51,047 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) [2022-03-03 18:42:51,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 4022 transitions. [2022-03-03 18:42:51,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:51,048 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:51,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:51,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable667 [2022-03-03 18:42:51,048 INFO L402 AbstractCegarLoop]: === Iteration 669 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:51,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:51,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1811104917, now seen corresponding path program 664 times [2022-03-03 18:42:51,049 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:51,049 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664212092] [2022-03-03 18:42:51,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:51,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:51,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:51,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:51,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664212092] [2022-03-03 18:42:51,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664212092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:51,172 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:51,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:51,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915772631] [2022-03-03 18:42:51,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:51,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:51,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:51,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:51,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:51,173 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) [2022-03-03 18:42:51,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:51,281 INFO L93 Difference]: Finished difference Result 1823 states and 6521 transitions. [2022-03-03 18:42:51,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:51,281 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 [2022-03-03 18:42:51,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:51,285 INFO L225 Difference]: With dead ends: 1823 [2022-03-03 18:42:51,285 INFO L226 Difference]: Without dead ends: 1538 [2022-03-03 18:42:51,285 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 [2022-03-03 18:42:51,285 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 99 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:51,285 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] [2022-03-03 18:42:51,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2022-03-03 18:42:51,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 1004. [2022-03-03 18:42:51,297 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) [2022-03-03 18:42:51,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 3787 transitions. [2022-03-03 18:42:51,299 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 3787 transitions. Word has length 25 [2022-03-03 18:42:51,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:51,300 INFO L470 AbstractCegarLoop]: Abstraction has 1004 states and 3787 transitions. [2022-03-03 18:42:51,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:51,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 3787 transitions. [2022-03-03 18:42:51,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:51,301 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:51,301 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] [2022-03-03 18:42:51,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable668 [2022-03-03 18:42:51,301 INFO L402 AbstractCegarLoop]: === Iteration 670 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:51,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:51,301 INFO L85 PathProgramCache]: Analyzing trace with hash 164314261, now seen corresponding path program 665 times [2022-03-03 18:42:51,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:51,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518543358] [2022-03-03 18:42:51,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:51,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:51,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:51,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:51,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518543358] [2022-03-03 18:42:51,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518543358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:51,448 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:51,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:51,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290336871] [2022-03-03 18:42:51,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:51,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:51,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:51,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:51,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:51,449 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) [2022-03-03 18:42:51,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:51,593 INFO L93 Difference]: Finished difference Result 1753 states and 6291 transitions. [2022-03-03 18:42:51,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:51,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:51,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:51,598 INFO L225 Difference]: With dead ends: 1753 [2022-03-03 18:42:51,598 INFO L226 Difference]: Without dead ends: 1578 [2022-03-03 18:42:51,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:51,598 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 [2022-03-03 18:42:51,598 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] [2022-03-03 18:42:51,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2022-03-03 18:42:51,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1044. [2022-03-03 18:42:51,616 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) [2022-03-03 18:42:51,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3927 transitions. [2022-03-03 18:42:51,619 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3927 transitions. Word has length 25 [2022-03-03 18:42:51,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:51,619 INFO L470 AbstractCegarLoop]: Abstraction has 1044 states and 3927 transitions. [2022-03-03 18:42:51,620 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) [2022-03-03 18:42:51,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3927 transitions. [2022-03-03 18:42:51,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:51,622 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:51,622 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] [2022-03-03 18:42:51,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable669 [2022-03-03 18:42:51,622 INFO L402 AbstractCegarLoop]: === Iteration 671 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:51,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:51,622 INFO L85 PathProgramCache]: Analyzing trace with hash 382665847, now seen corresponding path program 666 times [2022-03-03 18:42:51,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:51,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590252676] [2022-03-03 18:42:51,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:51,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:51,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:51,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:51,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590252676] [2022-03-03 18:42:51,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590252676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:51,769 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:51,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:51,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781992795] [2022-03-03 18:42:51,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:51,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:51,770 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:51,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:51,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:51,770 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) [2022-03-03 18:42:51,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:51,867 INFO L93 Difference]: Finished difference Result 1577 states and 5706 transitions. [2022-03-03 18:42:51,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:51,867 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:51,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:51,869 INFO L225 Difference]: With dead ends: 1577 [2022-03-03 18:42:51,869 INFO L226 Difference]: Without dead ends: 1287 [2022-03-03 18:42:51,869 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 [2022-03-03 18:42:51,870 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 89 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:51,870 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] [2022-03-03 18:42:51,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2022-03-03 18:42:51,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 976. [2022-03-03 18:42:51,882 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) [2022-03-03 18:42:51,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 3693 transitions. [2022-03-03 18:42:51,883 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 3693 transitions. Word has length 25 [2022-03-03 18:42:51,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:51,884 INFO L470 AbstractCegarLoop]: Abstraction has 976 states and 3693 transitions. [2022-03-03 18:42:51,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:51,884 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 3693 transitions. [2022-03-03 18:42:51,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:51,885 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:51,885 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] [2022-03-03 18:42:51,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable670 [2022-03-03 18:42:51,885 INFO L402 AbstractCegarLoop]: === Iteration 672 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:51,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:51,885 INFO L85 PathProgramCache]: Analyzing trace with hash 2117522547, now seen corresponding path program 667 times [2022-03-03 18:42:51,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:51,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77565130] [2022-03-03 18:42:51,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:51,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:52,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:52,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:52,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77565130] [2022-03-03 18:42:52,006 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77565130] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:52,006 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:52,006 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:52,007 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331954115] [2022-03-03 18:42:52,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:52,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:52,007 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:52,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:52,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:52,007 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) [2022-03-03 18:42:52,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:52,117 INFO L93 Difference]: Finished difference Result 1928 states and 6894 transitions. [2022-03-03 18:42:52,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:52,117 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 [2022-03-03 18:42:52,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:52,121 INFO L225 Difference]: With dead ends: 1928 [2022-03-03 18:42:52,121 INFO L226 Difference]: Without dead ends: 1741 [2022-03-03 18:42:52,121 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 [2022-03-03 18:42:52,121 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 104 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:52,121 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] [2022-03-03 18:42:52,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2022-03-03 18:42:52,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1020. [2022-03-03 18:42:52,147 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) [2022-03-03 18:42:52,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 3861 transitions. [2022-03-03 18:42:52,149 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 3861 transitions. Word has length 25 [2022-03-03 18:42:52,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:52,149 INFO L470 AbstractCegarLoop]: Abstraction has 1020 states and 3861 transitions. [2022-03-03 18:42:52,149 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) [2022-03-03 18:42:52,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 3861 transitions. [2022-03-03 18:42:52,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:52,151 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:52,151 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] [2022-03-03 18:42:52,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable671 [2022-03-03 18:42:52,151 INFO L402 AbstractCegarLoop]: === Iteration 673 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:52,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:52,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1910714581, now seen corresponding path program 668 times [2022-03-03 18:42:52,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:52,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406992598] [2022-03-03 18:42:52,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:52,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:52,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:52,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:52,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406992598] [2022-03-03 18:42:52,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406992598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:52,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:52,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:52,265 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019300182] [2022-03-03 18:42:52,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:52,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:52,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:52,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:52,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:52,266 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) [2022-03-03 18:42:52,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:52,390 INFO L93 Difference]: Finished difference Result 1916 states and 6830 transitions. [2022-03-03 18:42:52,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:52,391 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 [2022-03-03 18:42:52,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:52,394 INFO L225 Difference]: With dead ends: 1916 [2022-03-03 18:42:52,394 INFO L226 Difference]: Without dead ends: 1717 [2022-03-03 18:42:52,394 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 [2022-03-03 18:42:52,394 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 [2022-03-03 18:42:52,394 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] [2022-03-03 18:42:52,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2022-03-03 18:42:52,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 996. [2022-03-03 18:42:52,409 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) [2022-03-03 18:42:52,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 3773 transitions. [2022-03-03 18:42:52,411 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 3773 transitions. Word has length 25 [2022-03-03 18:42:52,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:52,411 INFO L470 AbstractCegarLoop]: Abstraction has 996 states and 3773 transitions. [2022-03-03 18:42:52,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:52,411 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 3773 transitions. [2022-03-03 18:42:52,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:52,412 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:52,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:52,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable672 [2022-03-03 18:42:52,412 INFO L402 AbstractCegarLoop]: === Iteration 674 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:52,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:52,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1499999189, now seen corresponding path program 669 times [2022-03-03 18:42:52,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:52,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936871957] [2022-03-03 18:42:52,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:52,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:52,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:52,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:52,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936871957] [2022-03-03 18:42:52,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936871957] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:52,527 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:52,527 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:52,527 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111516129] [2022-03-03 18:42:52,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:52,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:52,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:52,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:52,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:52,527 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) [2022-03-03 18:42:52,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:52,634 INFO L93 Difference]: Finished difference Result 1891 states and 6725 transitions. [2022-03-03 18:42:52,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:52,635 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:52,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:52,638 INFO L225 Difference]: With dead ends: 1891 [2022-03-03 18:42:52,638 INFO L226 Difference]: Without dead ends: 1704 [2022-03-03 18:42:52,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:52,638 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 103 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:52,638 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] [2022-03-03 18:42:52,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2022-03-03 18:42:52,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1042. [2022-03-03 18:42:52,652 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) [2022-03-03 18:42:52,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 3930 transitions. [2022-03-03 18:42:52,654 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 3930 transitions. Word has length 25 [2022-03-03 18:42:52,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:52,654 INFO L470 AbstractCegarLoop]: Abstraction has 1042 states and 3930 transitions. [2022-03-03 18:42:52,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:52,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 3930 transitions. [2022-03-03 18:42:52,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:52,656 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:52,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:52,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable673 [2022-03-03 18:42:52,656 INFO L402 AbstractCegarLoop]: === Iteration 675 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:52,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:52,656 INFO L85 PathProgramCache]: Analyzing trace with hash 981900117, now seen corresponding path program 670 times [2022-03-03 18:42:52,656 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:52,656 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355100031] [2022-03-03 18:42:52,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:52,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:52,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:52,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:52,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355100031] [2022-03-03 18:42:52,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355100031] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:52,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:52,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:52,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367719393] [2022-03-03 18:42:52,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:52,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:52,772 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:52,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:52,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:52,773 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) [2022-03-03 18:42:52,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:52,868 INFO L93 Difference]: Finished difference Result 1798 states and 6429 transitions. [2022-03-03 18:42:52,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:52,869 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:52,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:52,872 INFO L225 Difference]: With dead ends: 1798 [2022-03-03 18:42:52,872 INFO L226 Difference]: Without dead ends: 1530 [2022-03-03 18:42:52,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:52,872 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 [2022-03-03 18:42:52,872 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] [2022-03-03 18:42:52,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2022-03-03 18:42:52,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 996. [2022-03-03 18:42:52,885 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) [2022-03-03 18:42:52,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 3753 transitions. [2022-03-03 18:42:52,887 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 3753 transitions. Word has length 25 [2022-03-03 18:42:52,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:52,887 INFO L470 AbstractCegarLoop]: Abstraction has 996 states and 3753 transitions. [2022-03-03 18:42:52,887 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) [2022-03-03 18:42:52,887 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 3753 transitions. [2022-03-03 18:42:52,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:52,889 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:52,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:52,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable674 [2022-03-03 18:42:52,889 INFO L402 AbstractCegarLoop]: === Iteration 676 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:52,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:52,889 INFO L85 PathProgramCache]: Analyzing trace with hash -92924105, now seen corresponding path program 671 times [2022-03-03 18:42:52,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:52,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689964541] [2022-03-03 18:42:52,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:52,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:53,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:53,005 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:53,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689964541] [2022-03-03 18:42:53,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689964541] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:53,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:53,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:53,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300161310] [2022-03-03 18:42:53,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:53,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:53,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:53,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:53,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:53,006 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) [2022-03-03 18:42:53,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:53,112 INFO L93 Difference]: Finished difference Result 1745 states and 6257 transitions. [2022-03-03 18:42:53,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:53,112 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:53,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:53,115 INFO L225 Difference]: With dead ends: 1745 [2022-03-03 18:42:53,115 INFO L226 Difference]: Without dead ends: 1570 [2022-03-03 18:42:53,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:53,116 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 [2022-03-03 18:42:53,116 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] [2022-03-03 18:42:53,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2022-03-03 18:42:53,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1036. [2022-03-03 18:42:53,129 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) [2022-03-03 18:42:53,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 3893 transitions. [2022-03-03 18:42:53,131 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 3893 transitions. Word has length 25 [2022-03-03 18:42:53,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:53,131 INFO L470 AbstractCegarLoop]: Abstraction has 1036 states and 3893 transitions. [2022-03-03 18:42:53,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:53,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 3893 transitions. [2022-03-03 18:42:53,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:53,133 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:53,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:53,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable675 [2022-03-03 18:42:53,133 INFO L402 AbstractCegarLoop]: === Iteration 677 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:53,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:53,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1913959531, now seen corresponding path program 672 times [2022-03-03 18:42:53,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:53,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486751484] [2022-03-03 18:42:53,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:53,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:53,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:53,251 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:53,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486751484] [2022-03-03 18:42:53,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486751484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:53,251 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:53,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:53,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190754684] [2022-03-03 18:42:53,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:53,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:53,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:53,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:53,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:53,252 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) [2022-03-03 18:42:53,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:53,355 INFO L93 Difference]: Finished difference Result 1569 states and 5672 transitions. [2022-03-03 18:42:53,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:53,356 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 [2022-03-03 18:42:53,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:53,358 INFO L225 Difference]: With dead ends: 1569 [2022-03-03 18:42:53,358 INFO L226 Difference]: Without dead ends: 1269 [2022-03-03 18:42:53,359 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 [2022-03-03 18:42:53,359 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 83 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-03 18:42:53,359 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] [2022-03-03 18:42:53,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2022-03-03 18:42:53,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 958. [2022-03-03 18:42:53,371 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) [2022-03-03 18:42:53,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 3643 transitions. [2022-03-03 18:42:53,373 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 3643 transitions. Word has length 25 [2022-03-03 18:42:53,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:53,373 INFO L470 AbstractCegarLoop]: Abstraction has 958 states and 3643 transitions. [2022-03-03 18:42:53,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:53,373 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 3643 transitions. [2022-03-03 18:42:53,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:53,374 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:53,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:53,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable676 [2022-03-03 18:42:53,374 INFO L402 AbstractCegarLoop]: === Iteration 678 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:53,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:53,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1003195149, now seen corresponding path program 673 times [2022-03-03 18:42:53,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:53,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902328163] [2022-03-03 18:42:53,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:53,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:53,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:53,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:53,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902328163] [2022-03-03 18:42:53,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902328163] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:53,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:53,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:53,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768767690] [2022-03-03 18:42:53,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:53,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:53,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:53,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:53,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:53,491 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) [2022-03-03 18:42:53,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:53,591 INFO L93 Difference]: Finished difference Result 1805 states and 6424 transitions. [2022-03-03 18:42:53,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:53,591 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 [2022-03-03 18:42:53,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:53,594 INFO L225 Difference]: With dead ends: 1805 [2022-03-03 18:42:53,594 INFO L226 Difference]: Without dead ends: 1616 [2022-03-03 18:42:53,594 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 [2022-03-03 18:42:53,594 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 [2022-03-03 18:42:53,594 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] [2022-03-03 18:42:53,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2022-03-03 18:42:53,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 986. [2022-03-03 18:42:53,608 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) [2022-03-03 18:42:53,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 3731 transitions. [2022-03-03 18:42:53,610 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 3731 transitions. Word has length 25 [2022-03-03 18:42:53,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:53,610 INFO L470 AbstractCegarLoop]: Abstraction has 986 states and 3731 transitions. [2022-03-03 18:42:53,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:53,610 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 3731 transitions. [2022-03-03 18:42:53,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:53,612 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:53,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:53,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable677 [2022-03-03 18:42:53,612 INFO L402 AbstractCegarLoop]: === Iteration 679 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:53,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:53,612 INFO L85 PathProgramCache]: Analyzing trace with hash 189271283, now seen corresponding path program 674 times [2022-03-03 18:42:53,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:53,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044083586] [2022-03-03 18:42:53,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:53,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:53,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:53,727 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:53,727 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044083586] [2022-03-03 18:42:53,727 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044083586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:53,727 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:53,727 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:53,727 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596901524] [2022-03-03 18:42:53,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:53,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:53,727 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:53,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:53,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:53,727 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) [2022-03-03 18:42:53,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:53,825 INFO L93 Difference]: Finished difference Result 1799 states and 6379 transitions. [2022-03-03 18:42:53,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:53,825 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:53,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:53,828 INFO L225 Difference]: With dead ends: 1799 [2022-03-03 18:42:53,828 INFO L226 Difference]: Without dead ends: 1588 [2022-03-03 18:42:53,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:53,829 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 [2022-03-03 18:42:53,829 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] [2022-03-03 18:42:53,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2022-03-03 18:42:53,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 958. [2022-03-03 18:42:53,841 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) [2022-03-03 18:42:53,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 3631 transitions. [2022-03-03 18:42:53,843 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 3631 transitions. Word has length 25 [2022-03-03 18:42:53,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:53,843 INFO L470 AbstractCegarLoop]: Abstraction has 958 states and 3631 transitions. [2022-03-03 18:42:53,843 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) [2022-03-03 18:42:53,844 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 3631 transitions. [2022-03-03 18:42:53,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:53,845 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:53,845 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] [2022-03-03 18:42:53,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable678 [2022-03-03 18:42:53,845 INFO L402 AbstractCegarLoop]: === Iteration 680 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:53,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:53,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1484097195, now seen corresponding path program 675 times [2022-03-03 18:42:53,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:53,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652261204] [2022-03-03 18:42:53,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:53,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:53,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:53,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:53,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652261204] [2022-03-03 18:42:53,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652261204] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:53,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:53,995 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:53,995 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341399505] [2022-03-03 18:42:53,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:53,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:53,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:53,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:53,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:53,995 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) [2022-03-03 18:42:54,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:54,107 INFO L93 Difference]: Finished difference Result 1793 states and 6368 transitions. [2022-03-03 18:42:54,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:54,107 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:54,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:54,110 INFO L225 Difference]: With dead ends: 1793 [2022-03-03 18:42:54,110 INFO L226 Difference]: Without dead ends: 1604 [2022-03-03 18:42:54,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:54,110 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 [2022-03-03 18:42:54,110 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] [2022-03-03 18:42:54,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2022-03-03 18:42:54,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 982. [2022-03-03 18:42:54,124 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) [2022-03-03 18:42:54,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 3707 transitions. [2022-03-03 18:42:54,126 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 3707 transitions. Word has length 25 [2022-03-03 18:42:54,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:54,126 INFO L470 AbstractCegarLoop]: Abstraction has 982 states and 3707 transitions. [2022-03-03 18:42:54,126 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) [2022-03-03 18:42:54,127 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 3707 transitions. [2022-03-03 18:42:54,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:54,128 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:54,128 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] [2022-03-03 18:42:54,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable679 [2022-03-03 18:42:54,128 INFO L402 AbstractCegarLoop]: === Iteration 681 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:54,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:54,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1885220083, now seen corresponding path program 676 times [2022-03-03 18:42:54,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:54,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119701552] [2022-03-03 18:42:54,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:54,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:54,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:54,247 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:54,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119701552] [2022-03-03 18:42:54,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119701552] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:54,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:54,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:54,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507545191] [2022-03-03 18:42:54,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:54,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:54,248 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:54,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:54,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:54,248 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) [2022-03-03 18:42:54,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:54,367 INFO L93 Difference]: Finished difference Result 1779 states and 6299 transitions. [2022-03-03 18:42:54,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:54,367 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:54,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:54,371 INFO L225 Difference]: With dead ends: 1779 [2022-03-03 18:42:54,371 INFO L226 Difference]: Without dead ends: 1580 [2022-03-03 18:42:54,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:54,371 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 [2022-03-03 18:42:54,371 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] [2022-03-03 18:42:54,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2022-03-03 18:42:54,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 958. [2022-03-03 18:42:54,384 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) [2022-03-03 18:42:54,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 3619 transitions. [2022-03-03 18:42:54,385 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 3619 transitions. Word has length 25 [2022-03-03 18:42:54,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:54,386 INFO L470 AbstractCegarLoop]: Abstraction has 958 states and 3619 transitions. [2022-03-03 18:42:54,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:54,386 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 3619 transitions. [2022-03-03 18:42:54,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:54,387 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:54,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:54,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable680 [2022-03-03 18:42:54,387 INFO L402 AbstractCegarLoop]: === Iteration 682 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:54,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:54,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1725871347, now seen corresponding path program 677 times [2022-03-03 18:42:54,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:54,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453017883] [2022-03-03 18:42:54,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:54,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:54,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:54,501 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:54,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453017883] [2022-03-03 18:42:54,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453017883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:54,501 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:54,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:54,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246101124] [2022-03-03 18:42:54,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:54,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:54,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:54,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:54,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:54,502 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) [2022-03-03 18:42:54,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:54,600 INFO L93 Difference]: Finished difference Result 1781 states and 6322 transitions. [2022-03-03 18:42:54,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:54,600 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:54,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:54,603 INFO L225 Difference]: With dead ends: 1781 [2022-03-03 18:42:54,603 INFO L226 Difference]: Without dead ends: 1598 [2022-03-03 18:42:54,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:54,604 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 [2022-03-03 18:42:54,604 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] [2022-03-03 18:42:54,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2022-03-03 18:42:54,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 982. [2022-03-03 18:42:54,616 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) [2022-03-03 18:42:54,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 3695 transitions. [2022-03-03 18:42:54,618 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 3695 transitions. Word has length 25 [2022-03-03 18:42:54,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:54,618 INFO L470 AbstractCegarLoop]: Abstraction has 982 states and 3695 transitions. [2022-03-03 18:42:54,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:54,618 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 3695 transitions. [2022-03-03 18:42:54,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:54,620 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:54,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:54,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable681 [2022-03-03 18:42:54,620 INFO L402 AbstractCegarLoop]: === Iteration 683 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:54,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:54,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1488033323, now seen corresponding path program 678 times [2022-03-03 18:42:54,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:54,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962361149] [2022-03-03 18:42:54,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:54,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:54,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:54,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:54,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962361149] [2022-03-03 18:42:54,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962361149] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:54,734 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:54,734 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:54,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021045757] [2022-03-03 18:42:54,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:54,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:54,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:54,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:54,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:54,734 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) [2022-03-03 18:42:54,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:54,838 INFO L93 Difference]: Finished difference Result 1773 states and 6270 transitions. [2022-03-03 18:42:54,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:54,838 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:54,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:54,841 INFO L225 Difference]: With dead ends: 1773 [2022-03-03 18:42:54,841 INFO L226 Difference]: Without dead ends: 1562 [2022-03-03 18:42:54,841 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 [2022-03-03 18:42:54,841 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 [2022-03-03 18:42:54,841 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] [2022-03-03 18:42:54,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2022-03-03 18:42:54,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 946. [2022-03-03 18:42:54,854 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) [2022-03-03 18:42:54,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 3581 transitions. [2022-03-03 18:42:54,856 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 3581 transitions. Word has length 25 [2022-03-03 18:42:54,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:54,856 INFO L470 AbstractCegarLoop]: Abstraction has 946 states and 3581 transitions. [2022-03-03 18:42:54,856 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) [2022-03-03 18:42:54,856 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 3581 transitions. [2022-03-03 18:42:54,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:54,857 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:54,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:54,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable682 [2022-03-03 18:42:54,857 INFO L402 AbstractCegarLoop]: === Iteration 684 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:54,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:54,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1737655339, now seen corresponding path program 679 times [2022-03-03 18:42:54,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:54,858 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596885113] [2022-03-03 18:42:54,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:54,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:54,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:54,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:54,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596885113] [2022-03-03 18:42:54,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596885113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:54,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:54,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:54,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897678147] [2022-03-03 18:42:54,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:54,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:54,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:54,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:54,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:54,973 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) [2022-03-03 18:42:55,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:55,084 INFO L93 Difference]: Finished difference Result 1832 states and 6485 transitions. [2022-03-03 18:42:55,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:55,084 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 [2022-03-03 18:42:55,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:55,088 INFO L225 Difference]: With dead ends: 1832 [2022-03-03 18:42:55,088 INFO L226 Difference]: Without dead ends: 1643 [2022-03-03 18:42:55,088 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 [2022-03-03 18:42:55,088 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 [2022-03-03 18:42:55,088 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] [2022-03-03 18:42:55,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-03-03 18:42:55,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 946. [2022-03-03 18:42:55,102 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) [2022-03-03 18:42:55,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 3553 transitions. [2022-03-03 18:42:55,104 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 3553 transitions. Word has length 25 [2022-03-03 18:42:55,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:55,104 INFO L470 AbstractCegarLoop]: Abstraction has 946 states and 3553 transitions. [2022-03-03 18:42:55,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:55,104 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 3553 transitions. [2022-03-03 18:42:55,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:55,105 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:55,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:55,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable683 [2022-03-03 18:42:55,105 INFO L402 AbstractCegarLoop]: === Iteration 685 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:55,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:55,106 INFO L85 PathProgramCache]: Analyzing trace with hash -545188907, now seen corresponding path program 680 times [2022-03-03 18:42:55,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:55,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560245554] [2022-03-03 18:42:55,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:55,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:55,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:55,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:55,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560245554] [2022-03-03 18:42:55,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560245554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:55,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:55,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:55,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67509994] [2022-03-03 18:42:55,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:55,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:55,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:55,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:55,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:55,225 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) [2022-03-03 18:42:55,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:55,328 INFO L93 Difference]: Finished difference Result 1826 states and 6440 transitions. [2022-03-03 18:42:55,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:55,329 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 [2022-03-03 18:42:55,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:55,331 INFO L225 Difference]: With dead ends: 1826 [2022-03-03 18:42:55,331 INFO L226 Difference]: Without dead ends: 1615 [2022-03-03 18:42:55,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:55,332 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 [2022-03-03 18:42:55,332 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] [2022-03-03 18:42:55,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-03-03 18:42:55,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 918. [2022-03-03 18:42:55,344 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) [2022-03-03 18:42:55,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 3451 transitions. [2022-03-03 18:42:55,346 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 3451 transitions. Word has length 25 [2022-03-03 18:42:55,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:55,346 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 3451 transitions. [2022-03-03 18:42:55,346 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) [2022-03-03 18:42:55,346 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 3451 transitions. [2022-03-03 18:42:55,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:55,347 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:55,347 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] [2022-03-03 18:42:55,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable684 [2022-03-03 18:42:55,347 INFO L402 AbstractCegarLoop]: === Iteration 686 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:55,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:55,348 INFO L85 PathProgramCache]: Analyzing trace with hash -721599531, now seen corresponding path program 681 times [2022-03-03 18:42:55,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:55,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053917244] [2022-03-03 18:42:55,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:55,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:55,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:55,465 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:55,465 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053917244] [2022-03-03 18:42:55,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053917244] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:55,466 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:55,466 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:55,466 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783155642] [2022-03-03 18:42:55,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:55,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:55,466 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:55,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:55,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:55,466 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) [2022-03-03 18:42:55,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:55,577 INFO L93 Difference]: Finished difference Result 1844 states and 6503 transitions. [2022-03-03 18:42:55,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:55,577 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:55,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:55,581 INFO L225 Difference]: With dead ends: 1844 [2022-03-03 18:42:55,581 INFO L226 Difference]: Without dead ends: 1655 [2022-03-03 18:42:55,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:55,581 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 [2022-03-03 18:42:55,581 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] [2022-03-03 18:42:55,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2022-03-03 18:42:55,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 981. [2022-03-03 18:42:55,593 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) [2022-03-03 18:42:55,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 3658 transitions. [2022-03-03 18:42:55,595 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 3658 transitions. Word has length 25 [2022-03-03 18:42:55,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:55,595 INFO L470 AbstractCegarLoop]: Abstraction has 981 states and 3658 transitions. [2022-03-03 18:42:55,595 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) [2022-03-03 18:42:55,595 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 3658 transitions. [2022-03-03 18:42:55,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:55,597 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:55,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:55,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable685 [2022-03-03 18:42:55,597 INFO L402 AbstractCegarLoop]: === Iteration 687 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:55,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:55,597 INFO L85 PathProgramCache]: Analyzing trace with hash -707379981, now seen corresponding path program 682 times [2022-03-03 18:42:55,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:55,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97297666] [2022-03-03 18:42:55,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:55,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:55,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:55,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:55,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97297666] [2022-03-03 18:42:55,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97297666] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:55,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:55,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:55,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358736548] [2022-03-03 18:42:55,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:55,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:55,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:55,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:55,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:55,718 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) [2022-03-03 18:42:55,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:55,812 INFO L93 Difference]: Finished difference Result 1749 states and 6201 transitions. [2022-03-03 18:42:55,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:55,812 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:55,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:55,815 INFO L225 Difference]: With dead ends: 1749 [2022-03-03 18:42:55,815 INFO L226 Difference]: Without dead ends: 1464 [2022-03-03 18:42:55,815 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 [2022-03-03 18:42:55,815 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 [2022-03-03 18:42:55,815 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] [2022-03-03 18:42:55,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-03-03 18:42:55,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 918. [2022-03-03 18:42:55,827 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) [2022-03-03 18:42:55,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 3421 transitions. [2022-03-03 18:42:55,828 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 3421 transitions. Word has length 25 [2022-03-03 18:42:55,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:55,829 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 3421 transitions. [2022-03-03 18:42:55,829 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) [2022-03-03 18:42:55,829 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 3421 transitions. [2022-03-03 18:42:55,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:55,830 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:55,830 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] [2022-03-03 18:42:55,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable686 [2022-03-03 18:42:55,830 INFO L402 AbstractCegarLoop]: === Iteration 688 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:55,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:55,830 INFO L85 PathProgramCache]: Analyzing trace with hash 244847859, now seen corresponding path program 683 times [2022-03-03 18:42:55,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:55,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101694014] [2022-03-03 18:42:55,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:55,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:55,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:55,956 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:55,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101694014] [2022-03-03 18:42:55,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101694014] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:55,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:55,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:55,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056242408] [2022-03-03 18:42:55,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:55,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:55,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:55,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:55,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:55,957 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) [2022-03-03 18:42:56,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:56,058 INFO L93 Difference]: Finished difference Result 1819 states and 6398 transitions. [2022-03-03 18:42:56,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:56,058 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 [2022-03-03 18:42:56,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:56,061 INFO L225 Difference]: With dead ends: 1819 [2022-03-03 18:42:56,061 INFO L226 Difference]: Without dead ends: 1636 [2022-03-03 18:42:56,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:56,062 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 [2022-03-03 18:42:56,062 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] [2022-03-03 18:42:56,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2022-03-03 18:42:56,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 962. [2022-03-03 18:42:56,075 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) [2022-03-03 18:42:56,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 3573 transitions. [2022-03-03 18:42:56,077 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 3573 transitions. Word has length 25 [2022-03-03 18:42:56,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:56,077 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 3573 transitions. [2022-03-03 18:42:56,077 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) [2022-03-03 18:42:56,077 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 3573 transitions. [2022-03-03 18:42:56,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:56,078 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:56,078 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] [2022-03-03 18:42:56,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable687 [2022-03-03 18:42:56,078 INFO L402 AbstractCegarLoop]: === Iteration 689 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:56,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:56,079 INFO L85 PathProgramCache]: Analyzing trace with hash -824671147, now seen corresponding path program 684 times [2022-03-03 18:42:56,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:56,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836719899] [2022-03-03 18:42:56,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:56,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:56,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:56,201 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:56,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836719899] [2022-03-03 18:42:56,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836719899] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:56,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:56,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:56,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972838430] [2022-03-03 18:42:56,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:56,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:56,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:56,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:56,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:56,201 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) [2022-03-03 18:42:56,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:56,294 INFO L93 Difference]: Finished difference Result 1730 states and 6116 transitions. [2022-03-03 18:42:56,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:56,294 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:56,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:56,297 INFO L225 Difference]: With dead ends: 1730 [2022-03-03 18:42:56,297 INFO L226 Difference]: Without dead ends: 1434 [2022-03-03 18:42:56,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:56,297 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 [2022-03-03 18:42:56,297 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] [2022-03-03 18:42:56,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2022-03-03 18:42:56,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 888. [2022-03-03 18:42:56,308 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) [2022-03-03 18:42:56,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 3322 transitions. [2022-03-03 18:42:56,310 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 3322 transitions. Word has length 25 [2022-03-03 18:42:56,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:56,310 INFO L470 AbstractCegarLoop]: Abstraction has 888 states and 3322 transitions. [2022-03-03 18:42:56,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:56,310 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 3322 transitions. [2022-03-03 18:42:56,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:56,311 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:56,311 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] [2022-03-03 18:42:56,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable688 [2022-03-03 18:42:56,312 INFO L402 AbstractCegarLoop]: === Iteration 690 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:56,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:56,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1767925687, now seen corresponding path program 685 times [2022-03-03 18:42:56,312 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:56,312 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926027514] [2022-03-03 18:42:56,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:56,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:56,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:56,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:56,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926027514] [2022-03-03 18:42:56,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926027514] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:56,433 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:56,433 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:56,433 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480094072] [2022-03-03 18:42:56,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:56,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:56,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:56,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:56,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:56,433 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) [2022-03-03 18:42:56,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:56,542 INFO L93 Difference]: Finished difference Result 1692 states and 5933 transitions. [2022-03-03 18:42:56,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:56,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:56,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:56,545 INFO L225 Difference]: With dead ends: 1692 [2022-03-03 18:42:56,545 INFO L226 Difference]: Without dead ends: 1503 [2022-03-03 18:42:56,545 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 [2022-03-03 18:42:56,546 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 [2022-03-03 18:42:56,546 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] [2022-03-03 18:42:56,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2022-03-03 18:42:56,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 888. [2022-03-03 18:42:56,557 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) [2022-03-03 18:42:56,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 3298 transitions. [2022-03-03 18:42:56,559 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 3298 transitions. Word has length 25 [2022-03-03 18:42:56,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:56,559 INFO L470 AbstractCegarLoop]: Abstraction has 888 states and 3298 transitions. [2022-03-03 18:42:56,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:56,559 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 3298 transitions. [2022-03-03 18:42:56,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:56,560 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:56,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:56,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable689 [2022-03-03 18:42:56,561 INFO L402 AbstractCegarLoop]: === Iteration 691 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:56,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:56,561 INFO L85 PathProgramCache]: Analyzing trace with hash 842275669, now seen corresponding path program 686 times [2022-03-03 18:42:56,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:56,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960887523] [2022-03-03 18:42:56,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:56,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:56,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:56,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:56,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960887523] [2022-03-03 18:42:56,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960887523] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:56,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:56,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:56,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011068831] [2022-03-03 18:42:56,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:56,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:56,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:56,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:56,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:56,680 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) [2022-03-03 18:42:56,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:56,788 INFO L93 Difference]: Finished difference Result 1678 states and 5864 transitions. [2022-03-03 18:42:56,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:56,788 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 [2022-03-03 18:42:56,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:56,791 INFO L225 Difference]: With dead ends: 1678 [2022-03-03 18:42:56,791 INFO L226 Difference]: Without dead ends: 1479 [2022-03-03 18:42:56,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:56,791 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 [2022-03-03 18:42:56,791 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] [2022-03-03 18:42:56,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2022-03-03 18:42:56,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 864. [2022-03-03 18:42:56,803 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) [2022-03-03 18:42:56,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 3210 transitions. [2022-03-03 18:42:56,804 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 3210 transitions. Word has length 25 [2022-03-03 18:42:56,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:56,805 INFO L470 AbstractCegarLoop]: Abstraction has 864 states and 3210 transitions. [2022-03-03 18:42:56,805 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) [2022-03-03 18:42:56,805 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 3210 transitions. [2022-03-03 18:42:56,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:56,806 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:56,806 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] [2022-03-03 18:42:56,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable690 [2022-03-03 18:42:56,806 INFO L402 AbstractCegarLoop]: === Iteration 692 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:56,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:56,806 INFO L85 PathProgramCache]: Analyzing trace with hash -195429227, now seen corresponding path program 687 times [2022-03-03 18:42:56,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:56,806 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911946951] [2022-03-03 18:42:56,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:56,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:56,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:56,924 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:56,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911946951] [2022-03-03 18:42:56,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911946951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:56,925 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:56,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:56,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755259383] [2022-03-03 18:42:56,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:56,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:56,925 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:56,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:56,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:56,925 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) [2022-03-03 18:42:57,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:57,032 INFO L93 Difference]: Finished difference Result 1653 states and 5759 transitions. [2022-03-03 18:42:57,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:57,032 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:57,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:57,035 INFO L225 Difference]: With dead ends: 1653 [2022-03-03 18:42:57,035 INFO L226 Difference]: Without dead ends: 1464 [2022-03-03 18:42:57,035 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 [2022-03-03 18:42:57,036 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 [2022-03-03 18:42:57,036 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] [2022-03-03 18:42:57,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-03-03 18:42:57,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 802. [2022-03-03 18:42:57,049 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) [2022-03-03 18:42:57,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 2958 transitions. [2022-03-03 18:42:57,051 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 2958 transitions. Word has length 25 [2022-03-03 18:42:57,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:57,051 INFO L470 AbstractCegarLoop]: Abstraction has 802 states and 2958 transitions. [2022-03-03 18:42:57,051 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) [2022-03-03 18:42:57,051 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 2958 transitions. [2022-03-03 18:42:57,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:57,052 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:57,052 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] [2022-03-03 18:42:57,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable691 [2022-03-03 18:42:57,052 INFO L402 AbstractCegarLoop]: === Iteration 693 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:57,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:57,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1002221781, now seen corresponding path program 688 times [2022-03-03 18:42:57,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:57,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470538153] [2022-03-03 18:42:57,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:57,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:57,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:57,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:57,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470538153] [2022-03-03 18:42:57,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470538153] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:57,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:57,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:57,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509759341] [2022-03-03 18:42:57,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:57,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:57,176 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:57,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:57,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:57,176 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) [2022-03-03 18:42:57,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:57,278 INFO L93 Difference]: Finished difference Result 1558 states and 5457 transitions. [2022-03-03 18:42:57,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:57,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:57,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:57,282 INFO L225 Difference]: With dead ends: 1558 [2022-03-03 18:42:57,282 INFO L226 Difference]: Without dead ends: 1273 [2022-03-03 18:42:57,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:57,282 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 [2022-03-03 18:42:57,282 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] [2022-03-03 18:42:57,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states. [2022-03-03 18:42:57,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 739. [2022-03-03 18:42:57,293 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) [2022-03-03 18:42:57,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 2723 transitions. [2022-03-03 18:42:57,294 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 2723 transitions. Word has length 25 [2022-03-03 18:42:57,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:57,294 INFO L470 AbstractCegarLoop]: Abstraction has 739 states and 2723 transitions. [2022-03-03 18:42:57,294 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) [2022-03-03 18:42:57,294 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 2723 transitions. [2022-03-03 18:42:57,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:57,295 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:57,295 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] [2022-03-03 18:42:57,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable692 [2022-03-03 18:42:57,296 INFO L402 AbstractCegarLoop]: === Iteration 694 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:57,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:57,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1622361331, now seen corresponding path program 689 times [2022-03-03 18:42:57,296 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:57,296 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369032607] [2022-03-03 18:42:57,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:57,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:57,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:57,418 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:57,418 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369032607] [2022-03-03 18:42:57,418 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369032607] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:57,418 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:57,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:57,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254520004] [2022-03-03 18:42:57,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:57,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:57,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:57,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:57,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:57,419 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) [2022-03-03 18:42:57,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:57,522 INFO L93 Difference]: Finished difference Result 1488 states and 5227 transitions. [2022-03-03 18:42:57,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:57,522 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 [2022-03-03 18:42:57,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:57,525 INFO L225 Difference]: With dead ends: 1488 [2022-03-03 18:42:57,525 INFO L226 Difference]: Without dead ends: 1313 [2022-03-03 18:42:57,525 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 [2022-03-03 18:42:57,525 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 [2022-03-03 18:42:57,525 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] [2022-03-03 18:42:57,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2022-03-03 18:42:57,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 779. [2022-03-03 18:42:57,537 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) [2022-03-03 18:42:57,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 2863 transitions. [2022-03-03 18:42:57,539 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 2863 transitions. Word has length 25 [2022-03-03 18:42:57,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:57,539 INFO L470 AbstractCegarLoop]: Abstraction has 779 states and 2863 transitions. [2022-03-03 18:42:57,539 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) [2022-03-03 18:42:57,539 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 2863 transitions. [2022-03-03 18:42:57,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:57,540 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:57,540 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] [2022-03-03 18:42:57,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable693 [2022-03-03 18:42:57,540 INFO L402 AbstractCegarLoop]: === Iteration 695 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:57,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:57,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1840712917, now seen corresponding path program 690 times [2022-03-03 18:42:57,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:57,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953488230] [2022-03-03 18:42:57,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:57,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:57,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:57,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:57,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953488230] [2022-03-03 18:42:57,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953488230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:57,664 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:57,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:57,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8675428] [2022-03-03 18:42:57,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:57,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:57,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:57,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:57,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:57,665 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) [2022-03-03 18:42:57,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:57,762 INFO L93 Difference]: Finished difference Result 1312 states and 4642 transitions. [2022-03-03 18:42:57,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:57,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:57,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:57,765 INFO L225 Difference]: With dead ends: 1312 [2022-03-03 18:42:57,765 INFO L226 Difference]: Without dead ends: 1022 [2022-03-03 18:42:57,765 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 [2022-03-03 18:42:57,765 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 98 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:57,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 110 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:57,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2022-03-03 18:42:57,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 711. [2022-03-03 18:42:57,775 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) [2022-03-03 18:42:57,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 2629 transitions. [2022-03-03 18:42:57,776 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 2629 transitions. Word has length 25 [2022-03-03 18:42:57,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:57,776 INFO L470 AbstractCegarLoop]: Abstraction has 711 states and 2629 transitions. [2022-03-03 18:42:57,776 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) [2022-03-03 18:42:57,777 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 2629 transitions. [2022-03-03 18:42:57,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:57,777 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:57,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:57,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable694 [2022-03-03 18:42:57,778 INFO L402 AbstractCegarLoop]: === Iteration 696 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:57,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:57,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1773007629, now seen corresponding path program 691 times [2022-03-03 18:42:57,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:57,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50304413] [2022-03-03 18:42:57,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:57,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:57,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:57,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:57,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50304413] [2022-03-03 18:42:57,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50304413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:57,900 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:57,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:57,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607170829] [2022-03-03 18:42:57,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:57,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:57,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:57,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:57,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:57,901 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) [2022-03-03 18:42:57,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:57,999 INFO L93 Difference]: Finished difference Result 1477 states and 5238 transitions. [2022-03-03 18:42:57,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:58,000 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 [2022-03-03 18:42:58,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:58,003 INFO L225 Difference]: With dead ends: 1477 [2022-03-03 18:42:58,003 INFO L226 Difference]: Without dead ends: 1294 [2022-03-03 18:42:58,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:58,003 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 114 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:58,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 99 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:58,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2022-03-03 18:42:58,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 755. [2022-03-03 18:42:58,014 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) [2022-03-03 18:42:58,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 2797 transitions. [2022-03-03 18:42:58,016 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 2797 transitions. Word has length 25 [2022-03-03 18:42:58,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:58,016 INFO L470 AbstractCegarLoop]: Abstraction has 755 states and 2797 transitions. [2022-03-03 18:42:58,016 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) [2022-03-03 18:42:58,016 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 2797 transitions. [2022-03-03 18:42:58,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:58,017 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:58,017 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] [2022-03-03 18:42:58,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable695 [2022-03-03 18:42:58,018 INFO L402 AbstractCegarLoop]: === Iteration 697 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:58,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:58,018 INFO L85 PathProgramCache]: Analyzing trace with hash -691945003, now seen corresponding path program 692 times [2022-03-03 18:42:58,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:58,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841504759] [2022-03-03 18:42:58,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:58,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:58,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:58,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:58,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841504759] [2022-03-03 18:42:58,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841504759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:58,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:58,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:58,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168734368] [2022-03-03 18:42:58,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:58,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:58,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:58,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:58,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:58,143 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) [2022-03-03 18:42:58,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:58,251 INFO L93 Difference]: Finished difference Result 1469 states and 5186 transitions. [2022-03-03 18:42:58,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:58,251 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 [2022-03-03 18:42:58,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:58,254 INFO L225 Difference]: With dead ends: 1469 [2022-03-03 18:42:58,254 INFO L226 Difference]: Without dead ends: 1270 [2022-03-03 18:42:58,255 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 [2022-03-03 18:42:58,255 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 [2022-03-03 18:42:58,255 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] [2022-03-03 18:42:58,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2022-03-03 18:42:58,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 731. [2022-03-03 18:42:58,266 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) [2022-03-03 18:42:58,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 2709 transitions. [2022-03-03 18:42:58,268 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 2709 transitions. Word has length 25 [2022-03-03 18:42:58,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:58,268 INFO L470 AbstractCegarLoop]: Abstraction has 731 states and 2709 transitions. [2022-03-03 18:42:58,268 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) [2022-03-03 18:42:58,268 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 2709 transitions. [2022-03-03 18:42:58,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:58,269 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:58,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:58,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable696 [2022-03-03 18:42:58,269 INFO L402 AbstractCegarLoop]: === Iteration 698 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:58,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:58,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1904436309, now seen corresponding path program 693 times [2022-03-03 18:42:58,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:58,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381700369] [2022-03-03 18:42:58,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:58,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:58,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:58,396 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:58,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381700369] [2022-03-03 18:42:58,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381700369] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:58,396 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:58,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:58,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574651500] [2022-03-03 18:42:58,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:58,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:58,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:58,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:58,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:58,397 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) [2022-03-03 18:42:58,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:58,498 INFO L93 Difference]: Finished difference Result 1397 states and 4922 transitions. [2022-03-03 18:42:58,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:58,498 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 [2022-03-03 18:42:58,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:58,501 INFO L225 Difference]: With dead ends: 1397 [2022-03-03 18:42:58,501 INFO L226 Difference]: Without dead ends: 1214 [2022-03-03 18:42:58,501 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 [2022-03-03 18:42:58,501 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 [2022-03-03 18:42:58,501 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] [2022-03-03 18:42:58,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2022-03-03 18:42:58,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 775. [2022-03-03 18:42:58,513 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) [2022-03-03 18:42:58,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 2861 transitions. [2022-03-03 18:42:58,515 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 2861 transitions. Word has length 25 [2022-03-03 18:42:58,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:58,515 INFO L470 AbstractCegarLoop]: Abstraction has 775 states and 2861 transitions. [2022-03-03 18:42:58,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:58,515 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 2861 transitions. [2022-03-03 18:42:58,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:58,516 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:58,516 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] [2022-03-03 18:42:58,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable697 [2022-03-03 18:42:58,516 INFO L402 AbstractCegarLoop]: === Iteration 699 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:58,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:58,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1620759467, now seen corresponding path program 694 times [2022-03-03 18:42:58,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:58,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867857811] [2022-03-03 18:42:58,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:58,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:58,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:58,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:58,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867857811] [2022-03-03 18:42:58,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867857811] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:58,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:58,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:58,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885263631] [2022-03-03 18:42:58,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:58,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:58,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:58,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:58,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:58,648 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) [2022-03-03 18:42:58,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:58,746 INFO L93 Difference]: Finished difference Result 1308 states and 4640 transitions. [2022-03-03 18:42:58,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:58,746 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 [2022-03-03 18:42:58,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:58,749 INFO L225 Difference]: With dead ends: 1308 [2022-03-03 18:42:58,749 INFO L226 Difference]: Without dead ends: 1042 [2022-03-03 18:42:58,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:58,749 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 [2022-03-03 18:42:58,749 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] [2022-03-03 18:42:58,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2022-03-03 18:42:58,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 731. [2022-03-03 18:42:58,759 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) [2022-03-03 18:42:58,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 2689 transitions. [2022-03-03 18:42:58,761 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 2689 transitions. Word has length 25 [2022-03-03 18:42:58,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:58,761 INFO L470 AbstractCegarLoop]: Abstraction has 731 states and 2689 transitions. [2022-03-03 18:42:58,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:58,761 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 2689 transitions. [2022-03-03 18:42:58,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:58,762 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:58,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:58,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable698 [2022-03-03 18:42:58,762 INFO L402 AbstractCegarLoop]: === Iteration 700 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:58,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:58,762 INFO L85 PathProgramCache]: Analyzing trace with hash -2002526025, now seen corresponding path program 695 times [2022-03-03 18:42:58,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:58,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153530771] [2022-03-03 18:42:58,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:58,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:58,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:58,892 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:58,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153530771] [2022-03-03 18:42:58,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153530771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:58,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:58,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:58,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373989894] [2022-03-03 18:42:58,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:58,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:58,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:58,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:58,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:58,892 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) [2022-03-03 18:42:58,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:58,991 INFO L93 Difference]: Finished difference Result 1169 states and 4133 transitions. [2022-03-03 18:42:58,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:58,992 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:58,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:58,994 INFO L225 Difference]: With dead ends: 1169 [2022-03-03 18:42:58,994 INFO L226 Difference]: Without dead ends: 994 [2022-03-03 18:42:58,994 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 [2022-03-03 18:42:58,994 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 102 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:58,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 91 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:58,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2022-03-03 18:42:59,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 771. [2022-03-03 18:42:59,004 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) [2022-03-03 18:42:59,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 2829 transitions. [2022-03-03 18:42:59,006 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 2829 transitions. Word has length 25 [2022-03-03 18:42:59,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:59,006 INFO L470 AbstractCegarLoop]: Abstraction has 771 states and 2829 transitions. [2022-03-03 18:42:59,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:59,006 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 2829 transitions. [2022-03-03 18:42:59,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:59,007 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:59,007 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] [2022-03-03 18:42:59,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable699 [2022-03-03 18:42:59,007 INFO L402 AbstractCegarLoop]: === Iteration 701 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:59,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:59,007 INFO L85 PathProgramCache]: Analyzing trace with hash 471405845, now seen corresponding path program 696 times [2022-03-03 18:42:59,007 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:59,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678762188] [2022-03-03 18:42:59,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:59,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:59,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:59,126 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:59,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678762188] [2022-03-03 18:42:59,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678762188] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:59,126 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:59,126 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:59,126 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163897729] [2022-03-03 18:42:59,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:59,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:59,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:59,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:59,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:59,126 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) [2022-03-03 18:42:59,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:59,227 INFO L93 Difference]: Finished difference Result 993 states and 3548 transitions. [2022-03-03 18:42:59,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:59,227 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:59,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:59,229 INFO L225 Difference]: With dead ends: 993 [2022-03-03 18:42:59,229 INFO L226 Difference]: Without dead ends: 697 [2022-03-03 18:42:59,229 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 [2022-03-03 18:42:59,229 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 [2022-03-03 18:42:59,229 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] [2022-03-03 18:42:59,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2022-03-03 18:42:59,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2022-03-03 18:42:59,237 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) [2022-03-03 18:42:59,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 2589 transitions. [2022-03-03 18:42:59,238 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 2589 transitions. Word has length 25 [2022-03-03 18:42:59,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:59,238 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 2589 transitions. [2022-03-03 18:42:59,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:59,239 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 2589 transitions. [2022-03-03 18:42:59,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:59,240 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:59,240 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] [2022-03-03 18:42:59,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable700 [2022-03-03 18:42:59,240 INFO L402 AbstractCegarLoop]: === Iteration 702 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:59,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:59,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1003874991, now seen corresponding path program 697 times [2022-03-03 18:42:59,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:59,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438225961] [2022-03-03 18:42:59,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:59,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:59,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:59,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:59,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438225961] [2022-03-03 18:42:59,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438225961] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:59,358 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:59,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:59,358 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092218953] [2022-03-03 18:42:59,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:59,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:59,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:59,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:59,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:59,359 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) [2022-03-03 18:42:59,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:59,457 INFO L93 Difference]: Finished difference Result 1284 states and 4495 transitions. [2022-03-03 18:42:59,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:59,457 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:59,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:59,460 INFO L225 Difference]: With dead ends: 1284 [2022-03-03 18:42:59,460 INFO L226 Difference]: Without dead ends: 1097 [2022-03-03 18:42:59,460 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 [2022-03-03 18:42:59,460 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 99 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:59,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 105 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:59,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2022-03-03 18:42:59,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 725. [2022-03-03 18:42:59,470 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) [2022-03-03 18:42:59,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 2677 transitions. [2022-03-03 18:42:59,472 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 2677 transitions. Word has length 25 [2022-03-03 18:42:59,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:59,472 INFO L470 AbstractCegarLoop]: Abstraction has 725 states and 2677 transitions. [2022-03-03 18:42:59,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:59,472 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 2677 transitions. [2022-03-03 18:42:59,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:59,473 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:59,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:59,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable701 [2022-03-03 18:42:59,473 INFO L402 AbstractCegarLoop]: === Iteration 703 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:59,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:59,473 INFO L85 PathProgramCache]: Analyzing trace with hash 77187635, now seen corresponding path program 698 times [2022-03-03 18:42:59,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:59,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445033683] [2022-03-03 18:42:59,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:59,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:59,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:59,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:59,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445033683] [2022-03-03 18:42:59,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445033683] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:59,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:59,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:59,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285241735] [2022-03-03 18:42:59,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:59,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:59,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:59,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:59,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:59,593 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) [2022-03-03 18:42:59,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:59,686 INFO L93 Difference]: Finished difference Result 1280 states and 4455 transitions. [2022-03-03 18:42:59,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:59,686 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:42:59,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:59,689 INFO L225 Difference]: With dead ends: 1280 [2022-03-03 18:42:59,689 INFO L226 Difference]: Without dead ends: 1069 [2022-03-03 18:42:59,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:59,689 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:59,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 91 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:59,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2022-03-03 18:42:59,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 697. [2022-03-03 18:42:59,699 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) [2022-03-03 18:42:59,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 2577 transitions. [2022-03-03 18:42:59,701 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 2577 transitions. Word has length 25 [2022-03-03 18:42:59,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:59,701 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 2577 transitions. [2022-03-03 18:42:59,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:59,701 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 2577 transitions. [2022-03-03 18:42:59,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:59,702 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:59,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:59,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable702 [2022-03-03 18:42:59,702 INFO L402 AbstractCegarLoop]: === Iteration 704 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:59,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:59,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1484777037, now seen corresponding path program 699 times [2022-03-03 18:42:59,702 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:59,702 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134428628] [2022-03-03 18:42:59,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:59,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:59,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:59,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:59,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134428628] [2022-03-03 18:42:59,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134428628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:59,821 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:59,821 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:42:59,822 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930095590] [2022-03-03 18:42:59,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:59,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:42:59,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:59,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:42:59,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:42:59,822 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) [2022-03-03 18:42:59,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:59,914 INFO L93 Difference]: Finished difference Result 1272 states and 4439 transitions. [2022-03-03 18:42:59,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:42:59,915 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 [2022-03-03 18:42:59,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:59,917 INFO L225 Difference]: With dead ends: 1272 [2022-03-03 18:42:59,917 INFO L226 Difference]: Without dead ends: 1085 [2022-03-03 18:42:59,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:42:59,917 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:59,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 85 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:42:59,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2022-03-03 18:42:59,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 721. [2022-03-03 18:42:59,927 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) [2022-03-03 18:42:59,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 2653 transitions. [2022-03-03 18:42:59,929 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 2653 transitions. Word has length 25 [2022-03-03 18:42:59,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:59,929 INFO L470 AbstractCegarLoop]: Abstraction has 721 states and 2653 transitions. [2022-03-03 18:42:59,929 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) [2022-03-03 18:42:59,929 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 2653 transitions. [2022-03-03 18:42:59,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:42:59,930 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:59,930 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] [2022-03-03 18:42:59,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable703 [2022-03-03 18:42:59,930 INFO L402 AbstractCegarLoop]: === Iteration 705 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:42:59,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:59,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1121943987, now seen corresponding path program 700 times [2022-03-03 18:42:59,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:59,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995410660] [2022-03-03 18:42:59,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:59,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:00,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:00,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:00,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995410660] [2022-03-03 18:43:00,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995410660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:00,051 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:00,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:00,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397449318] [2022-03-03 18:43:00,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:00,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:00,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:00,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:00,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:00,052 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) [2022-03-03 18:43:00,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:00,146 INFO L93 Difference]: Finished difference Result 1260 states and 4375 transitions. [2022-03-03 18:43:00,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:00,147 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:43:00,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:00,149 INFO L225 Difference]: With dead ends: 1260 [2022-03-03 18:43:00,149 INFO L226 Difference]: Without dead ends: 1061 [2022-03-03 18:43:00,149 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 [2022-03-03 18:43:00,149 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 102 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:00,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 91 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:43:00,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-03-03 18:43:00,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 697. [2022-03-03 18:43:00,159 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) [2022-03-03 18:43:00,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 2565 transitions. [2022-03-03 18:43:00,160 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 2565 transitions. Word has length 25 [2022-03-03 18:43:00,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:00,160 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 2565 transitions. [2022-03-03 18:43:00,160 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) [2022-03-03 18:43:00,160 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 2565 transitions. [2022-03-03 18:43:00,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:00,161 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:00,161 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] [2022-03-03 18:43:00,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable704 [2022-03-03 18:43:00,162 INFO L402 AbstractCegarLoop]: === Iteration 706 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:00,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:00,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1096772075, now seen corresponding path program 701 times [2022-03-03 18:43:00,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:00,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688886862] [2022-03-03 18:43:00,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:00,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:00,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:00,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:00,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688886862] [2022-03-03 18:43:00,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688886862] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:00,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:00,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:00,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453288274] [2022-03-03 18:43:00,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:00,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:00,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:00,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:00,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:00,285 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) [2022-03-03 18:43:00,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:00,380 INFO L93 Difference]: Finished difference Result 1264 states and 4403 transitions. [2022-03-03 18:43:00,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:00,380 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 [2022-03-03 18:43:00,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:00,382 INFO L225 Difference]: With dead ends: 1264 [2022-03-03 18:43:00,382 INFO L226 Difference]: Without dead ends: 1081 [2022-03-03 18:43:00,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:43:00,383 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 102 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:00,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 91 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:43:00,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2022-03-03 18:43:00,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 721. [2022-03-03 18:43:00,393 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) [2022-03-03 18:43:00,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 2641 transitions. [2022-03-03 18:43:00,394 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 2641 transitions. Word has length 25 [2022-03-03 18:43:00,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:00,395 INFO L470 AbstractCegarLoop]: Abstraction has 721 states and 2641 transitions. [2022-03-03 18:43:00,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:00,395 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 2641 transitions. [2022-03-03 18:43:00,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:00,396 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:00,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:00,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable705 [2022-03-03 18:43:00,396 INFO L402 AbstractCegarLoop]: === Iteration 707 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:00,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:00,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1943569037, now seen corresponding path program 702 times [2022-03-03 18:43:00,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:00,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098651404] [2022-03-03 18:43:00,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:00,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:00,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:00,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:00,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098651404] [2022-03-03 18:43:00,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098651404] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:00,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:00,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:00,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946110268] [2022-03-03 18:43:00,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:00,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:00,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:00,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:00,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:00,523 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) [2022-03-03 18:43:00,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:00,620 INFO L93 Difference]: Finished difference Result 1256 states and 4351 transitions. [2022-03-03 18:43:00,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:00,620 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 [2022-03-03 18:43:00,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:00,622 INFO L225 Difference]: With dead ends: 1256 [2022-03-03 18:43:00,623 INFO L226 Difference]: Without dead ends: 1045 [2022-03-03 18:43:00,623 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 [2022-03-03 18:43:00,623 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 90 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:00,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 84 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:43:00,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2022-03-03 18:43:00,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 685. [2022-03-03 18:43:00,632 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) [2022-03-03 18:43:00,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 2527 transitions. [2022-03-03 18:43:00,634 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 2527 transitions. Word has length 25 [2022-03-03 18:43:00,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:00,634 INFO L470 AbstractCegarLoop]: Abstraction has 685 states and 2527 transitions. [2022-03-03 18:43:00,634 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) [2022-03-03 18:43:00,634 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 2527 transitions. [2022-03-03 18:43:00,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:00,635 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:00,635 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] [2022-03-03 18:43:00,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable706 [2022-03-03 18:43:00,635 INFO L402 AbstractCegarLoop]: === Iteration 708 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:00,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:00,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1738335181, now seen corresponding path program 703 times [2022-03-03 18:43:00,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:00,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118812756] [2022-03-03 18:43:00,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:00,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:00,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:00,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:00,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118812756] [2022-03-03 18:43:00,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118812756] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:00,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:00,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:00,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381752257] [2022-03-03 18:43:00,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:00,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:00,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:00,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:00,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:00,762 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) [2022-03-03 18:43:00,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:00,857 INFO L93 Difference]: Finished difference Result 1244 states and 4317 transitions. [2022-03-03 18:43:00,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:00,857 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:43:00,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:00,860 INFO L225 Difference]: With dead ends: 1244 [2022-03-03 18:43:00,860 INFO L226 Difference]: Without dead ends: 1057 [2022-03-03 18:43:00,860 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 [2022-03-03 18:43:00,860 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 88 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:00,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 90 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:43:00,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-03-03 18:43:00,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 685. [2022-03-03 18:43:00,870 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) [2022-03-03 18:43:00,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 2499 transitions. [2022-03-03 18:43:00,871 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 2499 transitions. Word has length 25 [2022-03-03 18:43:00,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:00,872 INFO L470 AbstractCegarLoop]: Abstraction has 685 states and 2499 transitions. [2022-03-03 18:43:00,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:00,872 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 2499 transitions. [2022-03-03 18:43:00,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:00,873 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:00,873 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] [2022-03-03 18:43:00,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable707 [2022-03-03 18:43:00,873 INFO L402 AbstractCegarLoop]: === Iteration 709 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:00,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:00,873 INFO L85 PathProgramCache]: Analyzing trace with hash -657272555, now seen corresponding path program 704 times [2022-03-03 18:43:00,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:00,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12951591] [2022-03-03 18:43:00,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:00,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:01,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:01,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:01,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12951591] [2022-03-03 18:43:01,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12951591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:01,002 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:01,002 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:01,002 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846610385] [2022-03-03 18:43:01,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:01,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:01,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:01,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:01,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:01,002 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) [2022-03-03 18:43:01,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:01,095 INFO L93 Difference]: Finished difference Result 1240 states and 4277 transitions. [2022-03-03 18:43:01,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:01,095 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 [2022-03-03 18:43:01,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:01,098 INFO L225 Difference]: With dead ends: 1240 [2022-03-03 18:43:01,098 INFO L226 Difference]: Without dead ends: 1029 [2022-03-03 18:43:01,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:43:01,098 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:01,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 87 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:43:01,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2022-03-03 18:43:01,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 657. [2022-03-03 18:43:01,107 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) [2022-03-03 18:43:01,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 2397 transitions. [2022-03-03 18:43:01,108 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 2397 transitions. Word has length 25 [2022-03-03 18:43:01,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:01,109 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 2397 transitions. [2022-03-03 18:43:01,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:01,109 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 2397 transitions. [2022-03-03 18:43:01,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:01,109 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:01,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:01,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable708 [2022-03-03 18:43:01,110 INFO L402 AbstractCegarLoop]: === Iteration 710 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:01,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:01,110 INFO L85 PathProgramCache]: Analyzing trace with hash -722279373, now seen corresponding path program 705 times [2022-03-03 18:43:01,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:01,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108526826] [2022-03-03 18:43:01,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:01,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:01,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:01,231 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:01,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108526826] [2022-03-03 18:43:01,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108526826] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:01,231 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:01,231 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:01,231 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596580257] [2022-03-03 18:43:01,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:01,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:01,232 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:01,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:01,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:01,232 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) [2022-03-03 18:43:01,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:01,322 INFO L93 Difference]: Finished difference Result 1241 states and 4289 transitions. [2022-03-03 18:43:01,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:01,323 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 [2022-03-03 18:43:01,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:01,325 INFO L225 Difference]: With dead ends: 1241 [2022-03-03 18:43:01,325 INFO L226 Difference]: Without dead ends: 1054 [2022-03-03 18:43:01,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:43:01,325 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:01,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 88 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:43:01,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2022-03-03 18:43:01,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 703. [2022-03-03 18:43:01,333 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) [2022-03-03 18:43:01,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 2554 transitions. [2022-03-03 18:43:01,335 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 2554 transitions. Word has length 25 [2022-03-03 18:43:01,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:01,335 INFO L470 AbstractCegarLoop]: Abstraction has 703 states and 2554 transitions. [2022-03-03 18:43:01,335 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) [2022-03-03 18:43:01,335 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 2554 transitions. [2022-03-03 18:43:01,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:01,336 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:01,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:01,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable709 [2022-03-03 18:43:01,336 INFO L402 AbstractCegarLoop]: === Iteration 711 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:01,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:01,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1785306163, now seen corresponding path program 706 times [2022-03-03 18:43:01,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:01,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015419104] [2022-03-03 18:43:01,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:01,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:01,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:01,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:01,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015419104] [2022-03-03 18:43:01,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015419104] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:01,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:01,457 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:01,457 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107192730] [2022-03-03 18:43:01,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:01,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:01,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:01,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:01,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:01,457 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) [2022-03-03 18:43:01,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:01,542 INFO L93 Difference]: Finished difference Result 1148 states and 3993 transitions. [2022-03-03 18:43:01,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:01,543 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:43:01,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:01,544 INFO L225 Difference]: With dead ends: 1148 [2022-03-03 18:43:01,544 INFO L226 Difference]: Without dead ends: 880 [2022-03-03 18:43:01,545 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 [2022-03-03 18:43:01,545 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 83 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:01,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 91 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:43:01,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2022-03-03 18:43:01,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 657. [2022-03-03 18:43:01,552 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) [2022-03-03 18:43:01,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 2375 transitions. [2022-03-03 18:43:01,553 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 2375 transitions. Word has length 25 [2022-03-03 18:43:01,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:01,553 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 2375 transitions. [2022-03-03 18:43:01,553 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) [2022-03-03 18:43:01,553 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 2375 transitions. [2022-03-03 18:43:01,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:01,554 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:01,554 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] [2022-03-03 18:43:01,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable710 [2022-03-03 18:43:01,555 INFO L402 AbstractCegarLoop]: === Iteration 712 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:01,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:01,555 INFO L85 PathProgramCache]: Analyzing trace with hash -334274411, now seen corresponding path program 707 times [2022-03-03 18:43:01,555 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:01,555 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23269849] [2022-03-03 18:43:01,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:01,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:01,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:01,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:01,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23269849] [2022-03-03 18:43:01,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23269849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:01,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:01,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:01,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139073480] [2022-03-03 18:43:01,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:01,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:01,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:01,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:01,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:01,673 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) [2022-03-03 18:43:01,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:01,764 INFO L93 Difference]: Finished difference Result 1235 states and 4248 transitions. [2022-03-03 18:43:01,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:01,764 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:43:01,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:01,766 INFO L225 Difference]: With dead ends: 1235 [2022-03-03 18:43:01,766 INFO L226 Difference]: Without dead ends: 1052 [2022-03-03 18:43:01,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:43:01,766 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:01,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 82 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:43:01,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2022-03-03 18:43:01,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 701. [2022-03-03 18:43:01,775 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) [2022-03-03 18:43:01,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 2527 transitions. [2022-03-03 18:43:01,776 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 2527 transitions. Word has length 25 [2022-03-03 18:43:01,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:01,776 INFO L470 AbstractCegarLoop]: Abstraction has 701 states and 2527 transitions. [2022-03-03 18:43:01,776 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) [2022-03-03 18:43:01,776 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 2527 transitions. [2022-03-03 18:43:01,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:01,777 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:01,777 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] [2022-03-03 18:43:01,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable711 [2022-03-03 18:43:01,777 INFO L402 AbstractCegarLoop]: === Iteration 713 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:01,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:01,778 INFO L85 PathProgramCache]: Analyzing trace with hash 870374771, now seen corresponding path program 708 times [2022-03-03 18:43:01,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:01,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424758188] [2022-03-03 18:43:01,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:01,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:01,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:01,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:01,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424758188] [2022-03-03 18:43:01,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424758188] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:01,896 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:01,896 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:01,896 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910217297] [2022-03-03 18:43:01,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:01,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:01,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:01,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:01,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:01,897 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) [2022-03-03 18:43:01,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:01,979 INFO L93 Difference]: Finished difference Result 1146 states and 3966 transitions. [2022-03-03 18:43:01,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:01,979 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:43:01,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:01,981 INFO L225 Difference]: With dead ends: 1146 [2022-03-03 18:43:01,981 INFO L226 Difference]: Without dead ends: 858 [2022-03-03 18:43:01,981 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 [2022-03-03 18:43:01,981 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 80 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:01,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 89 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:43:01,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2022-03-03 18:43:01,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 635. [2022-03-03 18:43:01,988 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) [2022-03-03 18:43:01,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 2300 transitions. [2022-03-03 18:43:01,990 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 2300 transitions. Word has length 25 [2022-03-03 18:43:01,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:01,990 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 2300 transitions. [2022-03-03 18:43:01,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:01,990 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 2300 transitions. [2022-03-03 18:43:01,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:01,991 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:01,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:01,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable712 [2022-03-03 18:43:01,991 INFO L402 AbstractCegarLoop]: === Iteration 714 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:01,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:01,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1767245845, now seen corresponding path program 709 times [2022-03-03 18:43:01,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:01,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913038812] [2022-03-03 18:43:01,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:01,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:02,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:02,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:02,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913038812] [2022-03-03 18:43:02,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913038812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:02,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:02,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:02,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933924942] [2022-03-03 18:43:02,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:02,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:02,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:02,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:02,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:02,105 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) [2022-03-03 18:43:02,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:02,193 INFO L93 Difference]: Finished difference Result 1126 states and 3846 transitions. [2022-03-03 18:43:02,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:02,194 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 [2022-03-03 18:43:02,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:02,195 INFO L225 Difference]: With dead ends: 1126 [2022-03-03 18:43:02,195 INFO L226 Difference]: Without dead ends: 939 [2022-03-03 18:43:02,195 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 [2022-03-03 18:43:02,195 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:02,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 80 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:43:02,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-03-03 18:43:02,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 635. [2022-03-03 18:43:02,203 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) [2022-03-03 18:43:02,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 2276 transitions. [2022-03-03 18:43:02,205 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 2276 transitions. Word has length 25 [2022-03-03 18:43:02,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:02,205 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 2276 transitions. [2022-03-03 18:43:02,205 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) [2022-03-03 18:43:02,205 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 2276 transitions. [2022-03-03 18:43:02,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:02,206 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:02,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:02,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable713 [2022-03-03 18:43:02,206 INFO L402 AbstractCegarLoop]: === Iteration 715 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:02,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:02,206 INFO L85 PathProgramCache]: Analyzing trace with hash 78999573, now seen corresponding path program 710 times [2022-03-03 18:43:02,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:02,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366785892] [2022-03-03 18:43:02,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:02,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:02,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:02,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:02,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366785892] [2022-03-03 18:43:02,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366785892] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:02,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:02,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:02,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541049547] [2022-03-03 18:43:02,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:02,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:02,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:02,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:02,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:02,323 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) [2022-03-03 18:43:02,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:02,408 INFO L93 Difference]: Finished difference Result 1114 states and 3782 transitions. [2022-03-03 18:43:02,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:02,408 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 [2022-03-03 18:43:02,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:02,410 INFO L225 Difference]: With dead ends: 1114 [2022-03-03 18:43:02,410 INFO L226 Difference]: Without dead ends: 915 [2022-03-03 18:43:02,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:43:02,411 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:02,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 78 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:43:02,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-03-03 18:43:02,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 611. [2022-03-03 18:43:02,418 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) [2022-03-03 18:43:02,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 2188 transitions. [2022-03-03 18:43:02,419 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 2188 transitions. Word has length 25 [2022-03-03 18:43:02,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:02,419 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 2188 transitions. [2022-03-03 18:43:02,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:02,419 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 2188 transitions. [2022-03-03 18:43:02,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:02,420 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:02,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:02,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable714 [2022-03-03 18:43:02,420 INFO L402 AbstractCegarLoop]: === Iteration 716 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:02,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:02,421 INFO L85 PathProgramCache]: Analyzing trace with hash -196109069, now seen corresponding path program 711 times [2022-03-03 18:43:02,421 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:02,421 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537879168] [2022-03-03 18:43:02,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:02,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:02,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:02,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:02,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537879168] [2022-03-03 18:43:02,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537879168] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:02,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:02,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:02,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601773462] [2022-03-03 18:43:02,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:02,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:02,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:02,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:02,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:02,539 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) [2022-03-03 18:43:02,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:02,626 INFO L93 Difference]: Finished difference Result 1089 states and 3677 transitions. [2022-03-03 18:43:02,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:02,626 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 [2022-03-03 18:43:02,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:02,628 INFO L225 Difference]: With dead ends: 1089 [2022-03-03 18:43:02,628 INFO L226 Difference]: Without dead ends: 902 [2022-03-03 18:43:02,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:43:02,628 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:02,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 80 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:43:02,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2022-03-03 18:43:02,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 551. [2022-03-03 18:43:02,635 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) [2022-03-03 18:43:02,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 1942 transitions. [2022-03-03 18:43:02,636 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 1942 transitions. Word has length 25 [2022-03-03 18:43:02,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:02,636 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 1942 transitions. [2022-03-03 18:43:02,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:02,636 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 1942 transitions. [2022-03-03 18:43:02,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:02,637 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:02,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:02,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable715 [2022-03-03 18:43:02,637 INFO L402 AbstractCegarLoop]: === Iteration 717 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:02,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:02,637 INFO L85 PathProgramCache]: Analyzing trace with hash -800059371, now seen corresponding path program 712 times [2022-03-03 18:43:02,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:02,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440734236] [2022-03-03 18:43:02,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:02,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:02,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:02,756 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:02,756 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440734236] [2022-03-03 18:43:02,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440734236] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:02,757 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:02,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:02,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855099353] [2022-03-03 18:43:02,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:02,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:02,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:02,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:02,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:02,757 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) [2022-03-03 18:43:02,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:02,836 INFO L93 Difference]: Finished difference Result 996 states and 3381 transitions. [2022-03-03 18:43:02,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:02,836 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:43:02,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:02,837 INFO L225 Difference]: With dead ends: 996 [2022-03-03 18:43:02,837 INFO L226 Difference]: Without dead ends: 728 [2022-03-03 18:43:02,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:43:02,838 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:02,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 90 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:43:02,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2022-03-03 18:43:02,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 505. [2022-03-03 18:43:02,844 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) [2022-03-03 18:43:02,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 1765 transitions. [2022-03-03 18:43:02,845 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 1765 transitions. Word has length 25 [2022-03-03 18:43:02,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:02,845 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 1765 transitions. [2022-03-03 18:43:02,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:02,845 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 1765 transitions. [2022-03-03 18:43:02,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:02,845 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:02,846 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] [2022-03-03 18:43:02,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable716 [2022-03-03 18:43:02,846 INFO L402 AbstractCegarLoop]: === Iteration 718 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:02,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:02,846 INFO L85 PathProgramCache]: Analyzing trace with hash 392046613, now seen corresponding path program 713 times [2022-03-03 18:43:02,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:02,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683817955] [2022-03-03 18:43:02,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:02,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:02,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:02,965 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:02,965 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683817955] [2022-03-03 18:43:02,965 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683817955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:02,965 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:02,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:02,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928574149] [2022-03-03 18:43:02,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:02,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:02,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:02,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:02,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:02,965 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) [2022-03-03 18:43:03,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:03,057 INFO L93 Difference]: Finished difference Result 943 states and 3209 transitions. [2022-03-03 18:43:03,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:03,057 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:43:03,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:03,059 INFO L225 Difference]: With dead ends: 943 [2022-03-03 18:43:03,059 INFO L226 Difference]: Without dead ends: 768 [2022-03-03 18:43:03,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:43:03,059 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 [2022-03-03 18:43:03,059 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] [2022-03-03 18:43:03,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2022-03-03 18:43:03,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 545. [2022-03-03 18:43:03,065 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) [2022-03-03 18:43:03,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 1905 transitions. [2022-03-03 18:43:03,066 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 1905 transitions. Word has length 25 [2022-03-03 18:43:03,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:03,066 INFO L470 AbstractCegarLoop]: Abstraction has 545 states and 1905 transitions. [2022-03-03 18:43:03,066 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) [2022-03-03 18:43:03,066 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 1905 transitions. [2022-03-03 18:43:03,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:03,067 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:03,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:03,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable717 [2022-03-03 18:43:03,067 INFO L402 AbstractCegarLoop]: === Iteration 719 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:03,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:03,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1428988813, now seen corresponding path program 714 times [2022-03-03 18:43:03,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:03,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782415611] [2022-03-03 18:43:03,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:03,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:03,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:03,187 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:03,187 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782415611] [2022-03-03 18:43:03,187 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782415611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:03,187 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:03,187 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:03,188 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494543145] [2022-03-03 18:43:03,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:03,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:03,188 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:03,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:03,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:03,188 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) [2022-03-03 18:43:03,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:03,258 INFO L93 Difference]: Finished difference Result 767 states and 2624 transitions. [2022-03-03 18:43:03,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:03,258 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 [2022-03-03 18:43:03,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:03,259 INFO L225 Difference]: With dead ends: 767 [2022-03-03 18:43:03,259 INFO L226 Difference]: Without dead ends: 485 [2022-03-03 18:43:03,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:43:03,260 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:03,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 82 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:43:03,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2022-03-03 18:43:03,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 485. [2022-03-03 18:43:03,265 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) [2022-03-03 18:43:03,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 1695 transitions. [2022-03-03 18:43:03,265 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 1695 transitions. Word has length 25 [2022-03-03 18:43:03,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:03,266 INFO L470 AbstractCegarLoop]: Abstraction has 485 states and 1695 transitions. [2022-03-03 18:43:03,266 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) [2022-03-03 18:43:03,266 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 1695 transitions. [2022-03-03 18:43:03,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:03,266 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:03,266 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] [2022-03-03 18:43:03,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable718 [2022-03-03 18:43:03,266 INFO L402 AbstractCegarLoop]: === Iteration 720 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:03,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:03,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1846766583, now seen corresponding path program 715 times [2022-03-03 18:43:03,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:03,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772512641] [2022-03-03 18:43:03,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:03,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:03,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:03,387 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:03,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772512641] [2022-03-03 18:43:03,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772512641] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:03,387 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:03,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:03,387 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342086234] [2022-03-03 18:43:03,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:03,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:03,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:03,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:03,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:03,388 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) [2022-03-03 18:43:03,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:03,474 INFO L93 Difference]: Finished difference Result 796 states and 2668 transitions. [2022-03-03 18:43:03,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:03,474 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 [2022-03-03 18:43:03,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:03,475 INFO L225 Difference]: With dead ends: 796 [2022-03-03 18:43:03,475 INFO L226 Difference]: Without dead ends: 613 [2022-03-03 18:43:03,475 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 [2022-03-03 18:43:03,475 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 [2022-03-03 18:43:03,475 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] [2022-03-03 18:43:03,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-03-03 18:43:03,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 485. [2022-03-03 18:43:03,480 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) [2022-03-03 18:43:03,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 1671 transitions. [2022-03-03 18:43:03,481 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 1671 transitions. Word has length 25 [2022-03-03 18:43:03,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:03,481 INFO L470 AbstractCegarLoop]: Abstraction has 485 states and 1671 transitions. [2022-03-03 18:43:03,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:03,482 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 1671 transitions. [2022-03-03 18:43:03,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:03,482 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:03,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:03,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable719 [2022-03-03 18:43:03,482 INFO L402 AbstractCegarLoop]: === Iteration 721 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:03,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:03,483 INFO L85 PathProgramCache]: Analyzing trace with hash 999969621, now seen corresponding path program 716 times [2022-03-03 18:43:03,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:03,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466442908] [2022-03-03 18:43:03,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:03,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:03,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:03,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:03,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466442908] [2022-03-03 18:43:03,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466442908] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:03,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:03,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:03,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603406294] [2022-03-03 18:43:03,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:03,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:03,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:03,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:03,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:03,611 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) [2022-03-03 18:43:03,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:03,698 INFO L93 Difference]: Finished difference Result 788 states and 2616 transitions. [2022-03-03 18:43:03,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:03,699 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 [2022-03-03 18:43:03,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:03,700 INFO L225 Difference]: With dead ends: 788 [2022-03-03 18:43:03,700 INFO L226 Difference]: Without dead ends: 589 [2022-03-03 18:43:03,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:43:03,700 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 [2022-03-03 18:43:03,700 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] [2022-03-03 18:43:03,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2022-03-03 18:43:03,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 461. [2022-03-03 18:43:03,705 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) [2022-03-03 18:43:03,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 1583 transitions. [2022-03-03 18:43:03,706 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 1583 transitions. Word has length 25 [2022-03-03 18:43:03,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:03,706 INFO L470 AbstractCegarLoop]: Abstraction has 461 states and 1583 transitions. [2022-03-03 18:43:03,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:03,706 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 1583 transitions. [2022-03-03 18:43:03,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:03,706 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:03,706 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] [2022-03-03 18:43:03,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable720 [2022-03-03 18:43:03,707 INFO L402 AbstractCegarLoop]: === Iteration 722 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:03,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:03,707 INFO L85 PathProgramCache]: Analyzing trace with hash -116588331, now seen corresponding path program 717 times [2022-03-03 18:43:03,707 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:03,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582284138] [2022-03-03 18:43:03,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:03,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:03,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:03,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:03,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582284138] [2022-03-03 18:43:03,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582284138] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:03,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:03,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:03,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49069208] [2022-03-03 18:43:03,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:03,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:03,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:03,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:03,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:03,832 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) [2022-03-03 18:43:03,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:03,922 INFO L93 Difference]: Finished difference Result 716 states and 2352 transitions. [2022-03-03 18:43:03,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:03,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:43:03,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:03,924 INFO L225 Difference]: With dead ends: 716 [2022-03-03 18:43:03,924 INFO L226 Difference]: Without dead ends: 533 [2022-03-03 18:43:03,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:43:03,924 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:03,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 76 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:43:03,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2022-03-03 18:43:03,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 405. [2022-03-03 18:43:03,928 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) [2022-03-03 18:43:03,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 1351 transitions. [2022-03-03 18:43:03,929 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 1351 transitions. Word has length 25 [2022-03-03 18:43:03,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:03,929 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 1351 transitions. [2022-03-03 18:43:03,929 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) [2022-03-03 18:43:03,929 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 1351 transitions. [2022-03-03 18:43:03,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:03,930 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:03,930 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] [2022-03-03 18:43:03,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable721 [2022-03-03 18:43:03,930 INFO L402 AbstractCegarLoop]: === Iteration 723 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:03,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:03,930 INFO L85 PathProgramCache]: Analyzing trace with hash -2023474987, now seen corresponding path program 718 times [2022-03-03 18:43:03,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:03,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192867858] [2022-03-03 18:43:03,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:03,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:04,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:04,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:04,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192867858] [2022-03-03 18:43:04,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192867858] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:04,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:04,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:04,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590834156] [2022-03-03 18:43:04,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:04,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:04,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:04,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:04,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:04,053 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) [2022-03-03 18:43:04,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:04,124 INFO L93 Difference]: Finished difference Result 627 states and 2070 transitions. [2022-03-03 18:43:04,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:04,125 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-03 18:43:04,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:04,125 INFO L225 Difference]: With dead ends: 627 [2022-03-03 18:43:04,125 INFO L226 Difference]: Without dead ends: 361 [2022-03-03 18:43:04,125 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 [2022-03-03 18:43:04,125 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:04,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 73 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:43:04,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-03-03 18:43:04,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2022-03-03 18:43:04,129 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) [2022-03-03 18:43:04,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 1179 transitions. [2022-03-03 18:43:04,130 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 1179 transitions. Word has length 25 [2022-03-03 18:43:04,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:04,130 INFO L470 AbstractCegarLoop]: Abstraction has 361 states and 1179 transitions. [2022-03-03 18:43:04,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:04,130 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 1179 transitions. [2022-03-03 18:43:04,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:04,130 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:04,130 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] [2022-03-03 18:43:04,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable722 [2022-03-03 18:43:04,130 INFO L402 AbstractCegarLoop]: === Iteration 724 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:04,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:04,130 INFO L85 PathProgramCache]: Analyzing trace with hash -973336397, now seen corresponding path program 719 times [2022-03-03 18:43:04,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:04,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145132789] [2022-03-03 18:43:04,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:04,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:04,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:04,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:04,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145132789] [2022-03-03 18:43:04,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145132789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:04,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:04,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:04,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261200418] [2022-03-03 18:43:04,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:04,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:04,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:04,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:04,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:04,247 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) [2022-03-03 18:43:04,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:04,329 INFO L93 Difference]: Finished difference Result 488 states and 1563 transitions. [2022-03-03 18:43:04,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:04,329 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 [2022-03-03 18:43:04,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:04,329 INFO L225 Difference]: With dead ends: 488 [2022-03-03 18:43:04,329 INFO L226 Difference]: Without dead ends: 313 [2022-03-03 18:43:04,330 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 [2022-03-03 18:43:04,330 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:04,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 66 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:43:04,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-03-03 18:43:04,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2022-03-03 18:43:04,333 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) [2022-03-03 18:43:04,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 979 transitions. [2022-03-03 18:43:04,333 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 979 transitions. Word has length 25 [2022-03-03 18:43:04,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:04,333 INFO L470 AbstractCegarLoop]: Abstraction has 313 states and 979 transitions. [2022-03-03 18:43:04,333 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) [2022-03-03 18:43:04,333 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 979 transitions. [2022-03-03 18:43:04,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-03 18:43:04,334 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:04,334 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] [2022-03-03 18:43:04,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable723 [2022-03-03 18:43:04,334 INFO L402 AbstractCegarLoop]: === Iteration 725 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:43:04,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:04,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1590859755, now seen corresponding path program 720 times [2022-03-03 18:43:04,334 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:04,334 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481309062] [2022-03-03 18:43:04,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:04,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:04,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:04,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:04,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481309062] [2022-03-03 18:43:04,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481309062] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:04,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:04,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 18:43:04,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043951159] [2022-03-03 18:43:04,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:04,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 18:43:04,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:04,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 18:43:04,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:43:04,454 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) [2022-03-03 18:43:04,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:04,519 INFO L93 Difference]: Finished difference Result 312 states and 978 transitions. [2022-03-03 18:43:04,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 18:43:04,519 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 [2022-03-03 18:43:04,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:04,519 INFO L225 Difference]: With dead ends: 312 [2022-03-03 18:43:04,519 INFO L226 Difference]: Without dead ends: 0 [2022-03-03 18:43:04,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:43:04,519 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 [2022-03-03 18:43:04,519 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] [2022-03-03 18:43:04,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-03 18:43:04,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-03 18:43:04,520 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) [2022-03-03 18:43:04,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-03 18:43:04,520 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2022-03-03 18:43:04,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:04,520 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-03 18:43:04,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:04,520 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-03 18:43:04,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-03 18:43:04,522 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (6 of 7 remaining) [2022-03-03 18:43:04,523 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (5 of 7 remaining) [2022-03-03 18:43:04,523 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (4 of 7 remaining) [2022-03-03 18:43:04,530 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (3 of 7 remaining) [2022-03-03 18:43:04,530 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (2 of 7 remaining) [2022-03-03 18:43:04,530 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION (1 of 7 remaining) [2022-03-03 18:43:04,530 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION (0 of 7 remaining) [2022-03-03 18:43:04,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable724 [2022-03-03 18:43:04,533 INFO L732 BasicCegarLoop]: Path program histogram: [720, 1, 1, 1, 1, 1] [2022-03-03 18:43:04,535 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 18:43:04,535 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 18:43:04,536 INFO L202 PluginConnector]: Adding new model example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 06:43:04 BasicIcfg [2022-03-03 18:43:04,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 18:43:04,537 INFO L158 Benchmark]: Toolchain (without parser) took 201081.25ms. Allocated memory was 187.7MB in the beginning and 822.1MB in the end (delta: 634.4MB). Free memory was 151.7MB in the beginning and 631.4MB in the end (delta: -479.7MB). Peak memory consumption was 156.2MB. Max. memory is 8.0GB. [2022-03-03 18:43:04,537 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.52ms. Allocated memory is still 187.7MB. Free memory is still 152.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 18:43:04,537 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.27ms. Allocated memory is still 187.7MB. Free memory was 151.7MB in the beginning and 150.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 18:43:04,537 INFO L158 Benchmark]: Boogie Preprocessor took 16.85ms. Allocated memory is still 187.7MB. Free memory was 150.1MB in the beginning and 149.3MB in the end (delta: 841.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-03 18:43:04,537 INFO L158 Benchmark]: RCFGBuilder took 181.46ms. Allocated memory is still 187.7MB. Free memory was 149.1MB in the beginning and 140.5MB in the end (delta: 8.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-03 18:43:04,537 INFO L158 Benchmark]: TraceAbstraction took 200852.61ms. Allocated memory was 187.7MB in the beginning and 822.1MB in the end (delta: 634.4MB). Free memory was 140.0MB in the beginning and 631.4MB in the end (delta: -491.4MB). Peak memory consumption was 143.6MB. Max. memory is 8.0GB. [2022-03-03 18:43:04,537 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 0.52ms. Allocated memory is still 187.7MB. Free memory is still 152.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.27ms. Allocated memory is still 187.7MB. Free memory was 151.7MB in the beginning and 150.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.85ms. Allocated memory is still 187.7MB. Free memory was 150.1MB in the beginning and 149.3MB in the end (delta: 841.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 181.46ms. Allocated memory is still 187.7MB. Free memory was 149.1MB in the beginning and 140.5MB in the end (delta: 8.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 200852.61ms. Allocated memory was 187.7MB in the beginning and 822.1MB in the end (delta: 634.4MB). Free memory was 140.0MB in the beginning and 631.4MB in the end (delta: -491.4MB). Peak memory consumption was 143.6MB. 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: 200.8s, OverallIterations: 725, TraceHistogramMax: 1, PathProgramHistogramMax: 720, EmptinessCheckTime: 1.6s, AutomataDifference: 87.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75990 SdHoareTripleChecker+Valid, 55.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75990 mSDsluCounter, 103493 SdHoareTripleChecker+Invalid, 45.7s 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, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5775 GetRequests, 730 SyntacticMatches, 0 SemanticMatches, 5045 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2880 ImplicationChecksByTransitivity, 57.9s 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: 19.5s AutomataMinimizationTime, 725 MinimizatonAttempts, 806803 StatesRemovedByMinimization, 714 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 89.1s 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! [2022-03-03 18:43:04,566 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...