/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/weaver/test-easy7.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:36:28,414 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:36:28,485 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-12-09 15:36:28,511 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:36:28,512 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:36:28,512 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:36:28,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:36:28,513 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:36:28,513 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:36:28,516 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:36:28,516 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:36:28,516 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:36:28,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:36:28,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:36:28,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:36:28,518 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:36:28,518 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:36:28,518 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:36:28,518 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:36:28,518 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:36:28,519 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:36:28,519 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:36:28,519 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:36:28,519 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:36:28,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:36:28,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:36:28,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:36:28,521 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:36:28,521 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:36:28,521 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:36:28,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:36:28,522 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:36:28,522 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:36:28,522 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:36:28,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:36:28,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:36:28,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:36:28,757 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:36:28,760 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:36:28,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy7.wvr.c [2023-12-09 15:36:29,727 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:36:29,872 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:36:29,872 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy7.wvr.c [2023-12-09 15:36:29,877 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07d9b4aa1/e60b93ce42d64fccb164ff7ec52f28f4/FLAG0378a3430 [2023-12-09 15:36:29,890 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07d9b4aa1/e60b93ce42d64fccb164ff7ec52f28f4 [2023-12-09 15:36:29,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:36:29,892 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:36:29,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:36:29,895 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:36:29,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:36:29,898 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:36:29" (1/1) ... [2023-12-09 15:36:29,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b2fd6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:29, skipping insertion in model container [2023-12-09 15:36:29,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:36:29" (1/1) ... [2023-12-09 15:36:29,916 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:36:30,032 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy7.wvr.c[1898,1911] [2023-12-09 15:36:30,037 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:36:30,050 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:36:30,064 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy7.wvr.c[1898,1911] [2023-12-09 15:36:30,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:36:30,077 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:36:30,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:30 WrapperNode [2023-12-09 15:36:30,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:36:30,078 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:36:30,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:36:30,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:36:30,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:30" (1/1) ... [2023-12-09 15:36:30,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:30" (1/1) ... [2023-12-09 15:36:30,103 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2023-12-09 15:36:30,103 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:36:30,104 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:36:30,104 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:36:30,104 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:36:30,110 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:30" (1/1) ... [2023-12-09 15:36:30,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:30" (1/1) ... [2023-12-09 15:36:30,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:30" (1/1) ... [2023-12-09 15:36:30,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:30" (1/1) ... [2023-12-09 15:36:30,117 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:30" (1/1) ... [2023-12-09 15:36:30,118 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:30" (1/1) ... [2023-12-09 15:36:30,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:30" (1/1) ... [2023-12-09 15:36:30,119 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:30" (1/1) ... [2023-12-09 15:36:30,123 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:36:30,123 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:36:30,123 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:36:30,123 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:36:30,124 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:30" (1/1) ... [2023-12-09 15:36:30,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:36:30,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:36:30,146 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) [2023-12-09 15:36:30,149 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 [2023-12-09 15:36:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:36:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:36:30,166 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:36:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:36:30,166 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:36:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:36:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:36:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:36:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:36:30,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:36:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:36:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:36:30,168 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:36:30,237 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:36:30,239 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:36:30,376 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:36:30,384 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:36:30,384 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 15:36:30,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:36:30 BoogieIcfgContainer [2023-12-09 15:36:30,386 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:36:30,387 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:36:30,387 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:36:30,389 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:36:30,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:36:29" (1/3) ... [2023-12-09 15:36:30,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d9336c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:36:30, skipping insertion in model container [2023-12-09 15:36:30,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:30" (2/3) ... [2023-12-09 15:36:30,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d9336c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:36:30, skipping insertion in model container [2023-12-09 15:36:30,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:36:30" (3/3) ... [2023-12-09 15:36:30,391 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy7.wvr.c [2023-12-09 15:36:30,403 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:36:30,403 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:36:30,404 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:36:30,445 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-09 15:36:30,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 94 transitions, 202 flow [2023-12-09 15:36:30,561 INFO L124 PetriNetUnfolderBase]: 2/92 cut-off events. [2023-12-09 15:36:30,561 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:36:30,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 92 events. 2/92 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-12-09 15:36:30,564 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 94 transitions, 202 flow [2023-12-09 15:36:30,569 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 83 transitions, 178 flow [2023-12-09 15:36:30,576 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:36:30,580 INFO L362 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@e32c22d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:36:30,580 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-09 15:36:30,602 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:36:30,603 INFO L124 PetriNetUnfolderBase]: 2/82 cut-off events. [2023-12-09 15:36:30,603 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:36:30,603 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:30,603 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:30,604 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:30,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:30,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1559901871, now seen corresponding path program 1 times [2023-12-09 15:36:30,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:30,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473932554] [2023-12-09 15:36:30,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:30,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:31,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:31,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:31,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473932554] [2023-12-09 15:36:31,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473932554] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:31,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:31,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:36:31,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976660017] [2023-12-09 15:36:31,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:31,885 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:36:31,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:31,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:36:31,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:36:31,913 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:36:31,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 83 transitions, 178 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:31,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:31,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:36:31,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:32,820 INFO L124 PetriNetUnfolderBase]: 179/508 cut-off events. [2023-12-09 15:36:32,821 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2023-12-09 15:36:32,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 981 conditions, 508 events. 179/508 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2113 event pairs, 133 based on Foata normal form. 3/504 useless extension candidates. Maximal degree in co-relation 820. Up to 334 conditions per place. [2023-12-09 15:36:32,827 INFO L140 encePairwiseOnDemand]: 60/94 looper letters, 51 selfloop transitions, 28 changer transitions 34/148 dead transitions. [2023-12-09 15:36:32,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 148 transitions, 543 flow [2023-12-09 15:36:32,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-09 15:36:32,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-12-09 15:36:32,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 1467 transitions. [2023-12-09 15:36:32,845 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5202127659574468 [2023-12-09 15:36:32,846 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 1467 transitions. [2023-12-09 15:36:32,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 1467 transitions. [2023-12-09 15:36:32,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:32,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 1467 transitions. [2023-12-09 15:36:32,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 48.9) internal successors, (1467), 30 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:32,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 94.0) internal successors, (2914), 31 states have internal predecessors, (2914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:32,863 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 94.0) internal successors, (2914), 31 states have internal predecessors, (2914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:32,867 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 29 predicate places. [2023-12-09 15:36:32,867 INFO L500 AbstractCegarLoop]: Abstraction has has 117 places, 148 transitions, 543 flow [2023-12-09 15:36:32,867 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:32,868 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:32,868 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:32,868 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:36:32,868 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:32,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:32,870 INFO L85 PathProgramCache]: Analyzing trace with hash 963737837, now seen corresponding path program 2 times [2023-12-09 15:36:32,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:32,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102443233] [2023-12-09 15:36:32,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:32,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:33,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:33,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:33,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102443233] [2023-12-09 15:36:33,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102443233] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:33,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:33,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:36:33,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607251423] [2023-12-09 15:36:33,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:33,447 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:36:33,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:33,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:36:33,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:36:33,449 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:36:33,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 148 transitions, 543 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:33,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:33,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:36:33,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:34,470 INFO L124 PetriNetUnfolderBase]: 220/629 cut-off events. [2023-12-09 15:36:34,470 INFO L125 PetriNetUnfolderBase]: For 167/197 co-relation queries the response was YES. [2023-12-09 15:36:34,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1744 conditions, 629 events. 220/629 cut-off events. For 167/197 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2985 event pairs, 22 based on Foata normal form. 5/630 useless extension candidates. Maximal degree in co-relation 1425. Up to 435 conditions per place. [2023-12-09 15:36:34,477 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 94 selfloop transitions, 52 changer transitions 72/253 dead transitions. [2023-12-09 15:36:34,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 253 transitions, 1459 flow [2023-12-09 15:36:34,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-09 15:36:34,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-12-09 15:36:34,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 1777 transitions. [2023-12-09 15:36:34,481 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5251182033096927 [2023-12-09 15:36:34,481 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 1777 transitions. [2023-12-09 15:36:34,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 1777 transitions. [2023-12-09 15:36:34,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:34,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 1777 transitions. [2023-12-09 15:36:34,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 49.361111111111114) internal successors, (1777), 36 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:34,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 94.0) internal successors, (3478), 37 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:34,492 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 94.0) internal successors, (3478), 37 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:34,493 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 64 predicate places. [2023-12-09 15:36:34,493 INFO L500 AbstractCegarLoop]: Abstraction has has 152 places, 253 transitions, 1459 flow [2023-12-09 15:36:34,493 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:34,493 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:34,494 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:34,494 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:36:34,494 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:34,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:34,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1808436905, now seen corresponding path program 3 times [2023-12-09 15:36:34,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:34,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784835701] [2023-12-09 15:36:34,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:34,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:34,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:34,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:34,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784835701] [2023-12-09 15:36:34,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784835701] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:34,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:34,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-12-09 15:36:34,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376959678] [2023-12-09 15:36:34,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:34,997 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-09 15:36:34,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:34,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-09 15:36:34,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2023-12-09 15:36:34,999 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:36:35,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 253 transitions, 1459 flow. Second operand has 21 states, 21 states have (on average 47.095238095238095) internal successors, (989), 21 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:35,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:35,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:36:35,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:36,355 INFO L124 PetriNetUnfolderBase]: 279/790 cut-off events. [2023-12-09 15:36:36,355 INFO L125 PetriNetUnfolderBase]: For 349/399 co-relation queries the response was YES. [2023-12-09 15:36:36,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2859 conditions, 790 events. 279/790 cut-off events. For 349/399 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4156 event pairs, 23 based on Foata normal form. 17/803 useless extension candidates. Maximal degree in co-relation 2320. Up to 572 conditions per place. [2023-12-09 15:36:36,359 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 139 selfloop transitions, 58 changer transitions 116/348 dead transitions. [2023-12-09 15:36:36,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 348 transitions, 2694 flow [2023-12-09 15:36:36,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-09 15:36:36,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2023-12-09 15:36:36,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 2003 transitions. [2023-12-09 15:36:36,363 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5197197716658017 [2023-12-09 15:36:36,363 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 2003 transitions. [2023-12-09 15:36:36,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 2003 transitions. [2023-12-09 15:36:36,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:36,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 2003 transitions. [2023-12-09 15:36:36,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 48.853658536585364) internal successors, (2003), 41 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:36,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 94.0) internal successors, (3948), 42 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:36,371 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 94.0) internal successors, (3948), 42 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:36,372 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 104 predicate places. [2023-12-09 15:36:36,372 INFO L500 AbstractCegarLoop]: Abstraction has has 192 places, 348 transitions, 2694 flow [2023-12-09 15:36:36,372 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 47.095238095238095) internal successors, (989), 21 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:36,372 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:36,372 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:36,373 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:36:36,373 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:36,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:36,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1465418425, now seen corresponding path program 4 times [2023-12-09 15:36:36,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:36,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020660277] [2023-12-09 15:36:36,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:36,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:36,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:36,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:36,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020660277] [2023-12-09 15:36:36,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020660277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:36,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:36,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:36:36,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086571809] [2023-12-09 15:36:36,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:36,878 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:36:36,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:36,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:36:36,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:36:36,879 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:36:36,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 348 transitions, 2694 flow. Second operand has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:36,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:36,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:36:36,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:38,119 INFO L124 PetriNetUnfolderBase]: 326/907 cut-off events. [2023-12-09 15:36:38,119 INFO L125 PetriNetUnfolderBase]: For 546/610 co-relation queries the response was YES. [2023-12-09 15:36:38,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4110 conditions, 907 events. 326/907 cut-off events. For 546/610 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5015 event pairs, 29 based on Foata normal form. 20/924 useless extension candidates. Maximal degree in co-relation 3715. Up to 685 conditions per place. [2023-12-09 15:36:38,124 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 168 selfloop transitions, 63 changer transitions 160/426 dead transitions. [2023-12-09 15:36:38,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 426 transitions, 4139 flow [2023-12-09 15:36:38,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-09 15:36:38,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2023-12-09 15:36:38,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 1818 transitions. [2023-12-09 15:36:38,128 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5227142035652674 [2023-12-09 15:36:38,128 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 1818 transitions. [2023-12-09 15:36:38,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 1818 transitions. [2023-12-09 15:36:38,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:38,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 1818 transitions. [2023-12-09 15:36:38,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 49.13513513513514) internal successors, (1818), 37 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:38,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 94.0) internal successors, (3572), 38 states have internal predecessors, (3572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:38,137 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 94.0) internal successors, (3572), 38 states have internal predecessors, (3572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:38,138 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 140 predicate places. [2023-12-09 15:36:38,138 INFO L500 AbstractCegarLoop]: Abstraction has has 228 places, 426 transitions, 4139 flow [2023-12-09 15:36:38,139 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:38,139 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:38,140 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:38,140 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:36:38,140 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:38,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:38,141 INFO L85 PathProgramCache]: Analyzing trace with hash 453646039, now seen corresponding path program 5 times [2023-12-09 15:36:38,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:38,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284442330] [2023-12-09 15:36:38,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:38,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:38,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:38,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:38,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284442330] [2023-12-09 15:36:38,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284442330] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:38,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:38,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:36:38,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194056388] [2023-12-09 15:36:38,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:38,655 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:36:38,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:38,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:36:38,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:36:38,656 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:36:38,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 426 transitions, 4139 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:38,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:38,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:36:38,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:39,548 INFO L124 PetriNetUnfolderBase]: 347/988 cut-off events. [2023-12-09 15:36:39,548 INFO L125 PetriNetUnfolderBase]: For 921/1015 co-relation queries the response was YES. [2023-12-09 15:36:39,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5293 conditions, 988 events. 347/988 cut-off events. For 921/1015 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5768 event pairs, 4 based on Foata normal form. 22/1007 useless extension candidates. Maximal degree in co-relation 4411. Up to 746 conditions per place. [2023-12-09 15:36:39,554 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 164 selfloop transitions, 72 changer transitions 205/476 dead transitions. [2023-12-09 15:36:39,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 476 transitions, 5569 flow [2023-12-09 15:36:39,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-09 15:36:39,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-12-09 15:36:39,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 1487 transitions. [2023-12-09 15:36:39,557 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5273049645390071 [2023-12-09 15:36:39,557 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 1487 transitions. [2023-12-09 15:36:39,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 1487 transitions. [2023-12-09 15:36:39,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:39,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 1487 transitions. [2023-12-09 15:36:39,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 49.56666666666667) internal successors, (1487), 30 states have internal predecessors, (1487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:39,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 94.0) internal successors, (2914), 31 states have internal predecessors, (2914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:39,565 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 94.0) internal successors, (2914), 31 states have internal predecessors, (2914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:39,567 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 169 predicate places. [2023-12-09 15:36:39,567 INFO L500 AbstractCegarLoop]: Abstraction has has 257 places, 476 transitions, 5569 flow [2023-12-09 15:36:39,568 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:39,568 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:39,568 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:39,568 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:36:39,568 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:39,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:39,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1130092807, now seen corresponding path program 6 times [2023-12-09 15:36:39,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:39,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463418441] [2023-12-09 15:36:39,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:39,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:40,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:40,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:40,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463418441] [2023-12-09 15:36:40,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463418441] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:40,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:40,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:36:40,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734185976] [2023-12-09 15:36:40,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:40,016 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:36:40,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:40,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:36:40,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:36:40,017 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:36:40,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 476 transitions, 5569 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:40,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:40,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:36:40,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:41,026 INFO L124 PetriNetUnfolderBase]: 370/1120 cut-off events. [2023-12-09 15:36:41,026 INFO L125 PetriNetUnfolderBase]: For 1633/1743 co-relation queries the response was YES. [2023-12-09 15:36:41,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6682 conditions, 1120 events. 370/1120 cut-off events. For 1633/1743 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 7054 event pairs, 22 based on Foata normal form. 24/1141 useless extension candidates. Maximal degree in co-relation 5128. Up to 812 conditions per place. [2023-12-09 15:36:41,033 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 164 selfloop transitions, 78 changer transitions 249/526 dead transitions. [2023-12-09 15:36:41,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 526 transitions, 7193 flow [2023-12-09 15:36:41,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-09 15:36:41,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-12-09 15:36:41,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 1726 transitions. [2023-12-09 15:36:41,038 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5246200607902736 [2023-12-09 15:36:41,038 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 1726 transitions. [2023-12-09 15:36:41,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 1726 transitions. [2023-12-09 15:36:41,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:41,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 1726 transitions. [2023-12-09 15:36:41,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 49.31428571428572) internal successors, (1726), 35 states have internal predecessors, (1726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:41,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 94.0) internal successors, (3384), 36 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:41,044 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 94.0) internal successors, (3384), 36 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:41,046 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 203 predicate places. [2023-12-09 15:36:41,046 INFO L500 AbstractCegarLoop]: Abstraction has has 291 places, 526 transitions, 7193 flow [2023-12-09 15:36:41,047 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:41,047 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:41,047 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:41,047 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:36:41,047 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:41,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:41,048 INFO L85 PathProgramCache]: Analyzing trace with hash -342948105, now seen corresponding path program 7 times [2023-12-09 15:36:41,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:41,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721376964] [2023-12-09 15:36:41,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:41,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:41,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:41,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:41,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721376964] [2023-12-09 15:36:41,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721376964] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:41,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:41,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:36:41,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298692056] [2023-12-09 15:36:41,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:41,508 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:36:41,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:41,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:36:41,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:36:41,510 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:36:41,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 526 transitions, 7193 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:41,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:41,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:36:41,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:42,602 INFO L124 PetriNetUnfolderBase]: 389/1164 cut-off events. [2023-12-09 15:36:42,602 INFO L125 PetriNetUnfolderBase]: For 2127/2307 co-relation queries the response was YES. [2023-12-09 15:36:42,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8045 conditions, 1164 events. 389/1164 cut-off events. For 2127/2307 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 7506 event pairs, 25 based on Foata normal form. 22/1182 useless extension candidates. Maximal degree in co-relation 6417. Up to 868 conditions per place. [2023-12-09 15:36:42,648 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 164 selfloop transitions, 77 changer transitions 292/568 dead transitions. [2023-12-09 15:36:42,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 568 transitions, 8880 flow [2023-12-09 15:36:42,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-09 15:36:42,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-12-09 15:36:42,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 1725 transitions. [2023-12-09 15:36:42,652 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5243161094224924 [2023-12-09 15:36:42,652 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 1725 transitions. [2023-12-09 15:36:42,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 1725 transitions. [2023-12-09 15:36:42,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:42,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 1725 transitions. [2023-12-09 15:36:42,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 49.285714285714285) internal successors, (1725), 35 states have internal predecessors, (1725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:42,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 94.0) internal successors, (3384), 36 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:42,661 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 94.0) internal successors, (3384), 36 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:42,662 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 237 predicate places. [2023-12-09 15:36:42,662 INFO L500 AbstractCegarLoop]: Abstraction has has 325 places, 568 transitions, 8880 flow [2023-12-09 15:36:42,663 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:42,663 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:42,663 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:42,663 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:36:42,663 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:42,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:42,663 INFO L85 PathProgramCache]: Analyzing trace with hash -98331909, now seen corresponding path program 8 times [2023-12-09 15:36:42,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:42,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328915690] [2023-12-09 15:36:42,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:42,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:43,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:43,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:43,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328915690] [2023-12-09 15:36:43,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328915690] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:43,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:43,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-09 15:36:43,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638867838] [2023-12-09 15:36:43,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:43,256 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-09 15:36:43,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:43,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-09 15:36:43,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2023-12-09 15:36:43,257 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:36:43,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 568 transitions, 8880 flow. Second operand has 22 states, 22 states have (on average 47.0) internal successors, (1034), 22 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:43,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:43,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:36:43,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:44,869 INFO L124 PetriNetUnfolderBase]: 417/1296 cut-off events. [2023-12-09 15:36:44,869 INFO L125 PetriNetUnfolderBase]: For 3380/3628 co-relation queries the response was YES. [2023-12-09 15:36:44,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9865 conditions, 1296 events. 417/1296 cut-off events. For 3380/3628 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 8833 event pairs, 21 based on Foata normal form. 28/1318 useless extension candidates. Maximal degree in co-relation 7261. Up to 954 conditions per place. [2023-12-09 15:36:44,879 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 167 selfloop transitions, 98 changer transitions 361/661 dead transitions. [2023-12-09 15:36:44,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 661 transitions, 11668 flow [2023-12-09 15:36:44,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-12-09 15:36:44,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2023-12-09 15:36:44,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 2659 transitions. [2023-12-09 15:36:44,908 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5143133462282399 [2023-12-09 15:36:44,908 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 2659 transitions. [2023-12-09 15:36:44,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 2659 transitions. [2023-12-09 15:36:44,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:44,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 2659 transitions. [2023-12-09 15:36:44,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 56 states, 55 states have (on average 48.345454545454544) internal successors, (2659), 55 states have internal predecessors, (2659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:44,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 56 states, 56 states have (on average 94.0) internal successors, (5264), 56 states have internal predecessors, (5264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:44,959 INFO L81 ComplementDD]: Finished complementDD. Result has 56 states, 56 states have (on average 94.0) internal successors, (5264), 56 states have internal predecessors, (5264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:44,959 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 291 predicate places. [2023-12-09 15:36:44,959 INFO L500 AbstractCegarLoop]: Abstraction has has 379 places, 661 transitions, 11668 flow [2023-12-09 15:36:44,960 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 47.0) internal successors, (1034), 22 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:44,960 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:44,960 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:44,960 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 15:36:44,960 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:44,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:44,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1029071165, now seen corresponding path program 9 times [2023-12-09 15:36:44,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:44,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609720604] [2023-12-09 15:36:44,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:44,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:45,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:45,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:45,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609720604] [2023-12-09 15:36:45,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609720604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:45,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:45,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:36:45,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90175356] [2023-12-09 15:36:45,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:45,402 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:36:45,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:45,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:36:45,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:36:45,403 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:36:45,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 661 transitions, 11668 flow. Second operand has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:45,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:45,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:36:45,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:46,623 INFO L124 PetriNetUnfolderBase]: 436/1389 cut-off events. [2023-12-09 15:36:46,623 INFO L125 PetriNetUnfolderBase]: For 4460/4796 co-relation queries the response was YES. [2023-12-09 15:36:46,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11650 conditions, 1389 events. 436/1389 cut-off events. For 4460/4796 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9850 event pairs, 19 based on Foata normal form. 30/1416 useless extension candidates. Maximal degree in co-relation 10561. Up to 1021 conditions per place. [2023-12-09 15:36:46,635 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 179 selfloop transitions, 82 changer transitions 422/718 dead transitions. [2023-12-09 15:36:46,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 718 transitions, 14120 flow [2023-12-09 15:36:46,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-09 15:36:46,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2023-12-09 15:36:46,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 2052 transitions. [2023-12-09 15:36:46,640 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5197568389057751 [2023-12-09 15:36:46,640 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 2052 transitions. [2023-12-09 15:36:46,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 2052 transitions. [2023-12-09 15:36:46,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:46,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 2052 transitions. [2023-12-09 15:36:46,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 48.857142857142854) internal successors, (2052), 42 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:46,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 94.0) internal successors, (4042), 43 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:46,652 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 94.0) internal successors, (4042), 43 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:46,653 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 332 predicate places. [2023-12-09 15:36:46,653 INFO L500 AbstractCegarLoop]: Abstraction has has 420 places, 718 transitions, 14120 flow [2023-12-09 15:36:46,653 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:46,653 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:46,653 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:46,654 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 15:36:46,654 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:46,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:46,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1145685829, now seen corresponding path program 10 times [2023-12-09 15:36:46,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:46,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406383442] [2023-12-09 15:36:46,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:46,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:47,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:47,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:47,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406383442] [2023-12-09 15:36:47,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406383442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:47,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:47,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:36:47,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343850954] [2023-12-09 15:36:47,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:47,112 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:36:47,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:47,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:36:47,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:36:47,113 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:36:47,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 718 transitions, 14120 flow. Second operand has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:47,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:47,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:36:47,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:48,566 INFO L124 PetriNetUnfolderBase]: 454/1505 cut-off events. [2023-12-09 15:36:48,566 INFO L125 PetriNetUnfolderBase]: For 6316/6713 co-relation queries the response was YES. [2023-12-09 15:36:48,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13773 conditions, 1505 events. 454/1505 cut-off events. For 6316/6713 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 11196 event pairs, 22 based on Foata normal form. 35/1536 useless extension candidates. Maximal degree in co-relation 12355. Up to 1103 conditions per place. [2023-12-09 15:36:48,583 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 173 selfloop transitions, 79 changer transitions 500/787 dead transitions. [2023-12-09 15:36:48,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 787 transitions, 17079 flow [2023-12-09 15:36:48,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-09 15:36:48,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2023-12-09 15:36:48,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 2053 transitions. [2023-12-09 15:36:48,587 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5200101317122594 [2023-12-09 15:36:48,587 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 2053 transitions. [2023-12-09 15:36:48,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 2053 transitions. [2023-12-09 15:36:48,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:48,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 2053 transitions. [2023-12-09 15:36:48,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 48.88095238095238) internal successors, (2053), 42 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:48,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 94.0) internal successors, (4042), 43 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:48,594 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 94.0) internal successors, (4042), 43 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:48,595 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 373 predicate places. [2023-12-09 15:36:48,595 INFO L500 AbstractCegarLoop]: Abstraction has has 461 places, 787 transitions, 17079 flow [2023-12-09 15:36:48,595 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:48,595 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:48,596 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:48,596 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-09 15:36:48,597 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:48,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:48,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1282908209, now seen corresponding path program 11 times [2023-12-09 15:36:48,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:48,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174993255] [2023-12-09 15:36:48,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:48,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:49,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:49,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:49,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174993255] [2023-12-09 15:36:49,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174993255] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:49,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:49,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-12-09 15:36:49,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267947935] [2023-12-09 15:36:49,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:49,014 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-09 15:36:49,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:49,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-09 15:36:49,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2023-12-09 15:36:49,016 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:36:49,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 787 transitions, 17079 flow. Second operand has 21 states, 21 states have (on average 47.095238095238095) internal successors, (989), 21 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:49,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:49,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:36:49,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:50,595 INFO L124 PetriNetUnfolderBase]: 464/1558 cut-off events. [2023-12-09 15:36:50,595 INFO L125 PetriNetUnfolderBase]: For 7819/8283 co-relation queries the response was YES. [2023-12-09 15:36:50,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15541 conditions, 1558 events. 464/1558 cut-off events. For 7819/8283 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 11927 event pairs, 12 based on Foata normal form. 36/1590 useless extension candidates. Maximal degree in co-relation 10581. Up to 1146 conditions per place. [2023-12-09 15:36:50,605 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 169 selfloop transitions, 79 changer transitions 543/826 dead transitions. [2023-12-09 15:36:50,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 826 transitions, 19561 flow [2023-12-09 15:36:50,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-09 15:36:50,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2023-12-09 15:36:50,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 2380 transitions. [2023-12-09 15:36:50,609 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5167173252279635 [2023-12-09 15:36:50,609 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 2380 transitions. [2023-12-09 15:36:50,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 2380 transitions. [2023-12-09 15:36:50,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:50,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 2380 transitions. [2023-12-09 15:36:50,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 48.57142857142857) internal successors, (2380), 49 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:50,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 94.0) internal successors, (4700), 50 states have internal predecessors, (4700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:50,618 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 94.0) internal successors, (4700), 50 states have internal predecessors, (4700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:50,618 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 421 predicate places. [2023-12-09 15:36:50,618 INFO L500 AbstractCegarLoop]: Abstraction has has 509 places, 826 transitions, 19561 flow [2023-12-09 15:36:50,619 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 47.095238095238095) internal successors, (989), 21 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:50,619 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:50,619 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:50,619 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-09 15:36:50,619 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:50,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:50,619 INFO L85 PathProgramCache]: Analyzing trace with hash -2054795967, now seen corresponding path program 12 times [2023-12-09 15:36:50,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:50,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884014620] [2023-12-09 15:36:50,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:50,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:51,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:51,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:51,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884014620] [2023-12-09 15:36:51,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884014620] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:51,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:51,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-09 15:36:51,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935083191] [2023-12-09 15:36:51,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:51,118 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-09 15:36:51,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:51,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-09 15:36:51,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2023-12-09 15:36:51,120 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:36:51,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 826 transitions, 19561 flow. Second operand has 22 states, 22 states have (on average 47.0) internal successors, (1034), 22 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:51,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:51,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:36:51,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:52,956 INFO L124 PetriNetUnfolderBase]: 463/1661 cut-off events. [2023-12-09 15:36:52,957 INFO L125 PetriNetUnfolderBase]: For 10998/11535 co-relation queries the response was YES. [2023-12-09 15:36:52,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17550 conditions, 1661 events. 463/1661 cut-off events. For 10998/11535 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 13228 event pairs, 17 based on Foata normal form. 33/1691 useless extension candidates. Maximal degree in co-relation 13892. Up to 1193 conditions per place. [2023-12-09 15:36:52,966 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 161 selfloop transitions, 69 changer transitions 609/874 dead transitions. [2023-12-09 15:36:52,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 874 transitions, 22442 flow [2023-12-09 15:36:52,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-09 15:36:52,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2023-12-09 15:36:52,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 2565 transitions. [2023-12-09 15:36:52,971 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5148534725010037 [2023-12-09 15:36:52,971 INFO L72 ComplementDD]: Start complementDD. Operand 53 states and 2565 transitions. [2023-12-09 15:36:52,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 2565 transitions. [2023-12-09 15:36:52,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:52,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 53 states and 2565 transitions. [2023-12-09 15:36:52,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 54 states, 53 states have (on average 48.39622641509434) internal successors, (2565), 53 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) [2023-12-09 15:36:52,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 54 states, 54 states have (on average 94.0) internal successors, (5076), 54 states have internal predecessors, (5076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:52,978 INFO L81 ComplementDD]: Finished complementDD. Result has 54 states, 54 states have (on average 94.0) internal successors, (5076), 54 states have internal predecessors, (5076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:52,979 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 473 predicate places. [2023-12-09 15:36:52,979 INFO L500 AbstractCegarLoop]: Abstraction has has 561 places, 874 transitions, 22442 flow [2023-12-09 15:36:52,980 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 47.0) internal successors, (1034), 22 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:52,980 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:52,980 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:52,980 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-09 15:36:52,980 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:52,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:52,980 INFO L85 PathProgramCache]: Analyzing trace with hash 951667577, now seen corresponding path program 13 times [2023-12-09 15:36:52,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:52,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323101919] [2023-12-09 15:36:52,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:52,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:53,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:53,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:53,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323101919] [2023-12-09 15:36:53,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323101919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:53,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:53,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:36:53,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830644594] [2023-12-09 15:36:53,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:53,362 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:36:53,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:53,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:36:53,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:36:53,363 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:36:53,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 874 transitions, 22442 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:53,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:53,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:36:53,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:54,616 INFO L124 PetriNetUnfolderBase]: 497/1815 cut-off events. [2023-12-09 15:36:54,617 INFO L125 PetriNetUnfolderBase]: For 14210/14886 co-relation queries the response was YES. [2023-12-09 15:36:54,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20412 conditions, 1815 events. 497/1815 cut-off events. For 14210/14886 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 15095 event pairs, 26 based on Foata normal form. 22/1833 useless extension candidates. Maximal degree in co-relation 17911. Up to 1297 conditions per place. [2023-12-09 15:36:54,627 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 153 selfloop transitions, 69 changer transitions 691/948 dead transitions. [2023-12-09 15:36:54,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 948 transitions, 26267 flow [2023-12-09 15:36:54,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-09 15:36:54,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2023-12-09 15:36:54,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 1633 transitions. [2023-12-09 15:36:54,629 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.526434558349452 [2023-12-09 15:36:54,629 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 1633 transitions. [2023-12-09 15:36:54,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 1633 transitions. [2023-12-09 15:36:54,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:54,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 1633 transitions. [2023-12-09 15:36:54,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 49.484848484848484) internal successors, (1633), 33 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:54,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 94.0) internal successors, (3196), 34 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:54,634 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 94.0) internal successors, (3196), 34 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:54,634 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 505 predicate places. [2023-12-09 15:36:54,634 INFO L500 AbstractCegarLoop]: Abstraction has has 593 places, 948 transitions, 26267 flow [2023-12-09 15:36:54,634 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:54,635 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:54,635 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:54,635 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-09 15:36:54,635 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:54,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:54,635 INFO L85 PathProgramCache]: Analyzing trace with hash 376286891, now seen corresponding path program 14 times [2023-12-09 15:36:54,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:54,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190121237] [2023-12-09 15:36:54,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:54,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:55,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:55,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:55,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190121237] [2023-12-09 15:36:55,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190121237] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:55,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:55,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-09 15:36:55,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673538706] [2023-12-09 15:36:55,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:55,037 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-09 15:36:55,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:55,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-09 15:36:55,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2023-12-09 15:36:55,038 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:36:55,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 593 places, 948 transitions, 26267 flow. Second operand has 22 states, 22 states have (on average 47.0) internal successors, (1034), 22 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:55,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:55,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:36:55,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:57,066 INFO L124 PetriNetUnfolderBase]: 533/2037 cut-off events. [2023-12-09 15:36:57,066 INFO L125 PetriNetUnfolderBase]: For 20337/21232 co-relation queries the response was YES. [2023-12-09 15:36:57,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23740 conditions, 2037 events. 533/2037 cut-off events. For 20337/21232 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 17718 event pairs, 33 based on Foata normal form. 23/2056 useless extension candidates. Maximal degree in co-relation 20837. Up to 1413 conditions per place. [2023-12-09 15:36:57,093 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 152 selfloop transitions, 98 changer transitions 778/1063 dead transitions. [2023-12-09 15:36:57,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 648 places, 1063 transitions, 31618 flow [2023-12-09 15:36:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-09 15:36:57,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2023-12-09 15:36:57,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 2713 transitions. [2023-12-09 15:36:57,110 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.515387537993921 [2023-12-09 15:36:57,110 INFO L72 ComplementDD]: Start complementDD. Operand 56 states and 2713 transitions. [2023-12-09 15:36:57,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 2713 transitions. [2023-12-09 15:36:57,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:57,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 56 states and 2713 transitions. [2023-12-09 15:36:57,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 57 states, 56 states have (on average 48.44642857142857) internal successors, (2713), 56 states have internal predecessors, (2713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:57,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 57 states, 57 states have (on average 94.0) internal successors, (5358), 57 states have internal predecessors, (5358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:57,118 INFO L81 ComplementDD]: Finished complementDD. Result has 57 states, 57 states have (on average 94.0) internal successors, (5358), 57 states have internal predecessors, (5358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:57,118 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 560 predicate places. [2023-12-09 15:36:57,118 INFO L500 AbstractCegarLoop]: Abstraction has has 648 places, 1063 transitions, 31618 flow [2023-12-09 15:36:57,118 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 47.0) internal successors, (1034), 22 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:57,118 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:57,118 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:57,119 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-09 15:36:57,119 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:57,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:57,119 INFO L85 PathProgramCache]: Analyzing trace with hash -2101448703, now seen corresponding path program 15 times [2023-12-09 15:36:57,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:57,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643558828] [2023-12-09 15:36:57,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:57,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:57,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:57,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:57,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643558828] [2023-12-09 15:36:57,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643558828] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:57,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:57,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:36:57,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588660748] [2023-12-09 15:36:57,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:57,532 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:36:57,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:57,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:36:57,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:36:57,534 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:36:57,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 648 places, 1063 transitions, 31618 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:57,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:57,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:36:57,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:58,977 INFO L124 PetriNetUnfolderBase]: 567/2081 cut-off events. [2023-12-09 15:36:58,978 INFO L125 PetriNetUnfolderBase]: For 22122/23263 co-relation queries the response was YES. [2023-12-09 15:36:58,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26568 conditions, 2081 events. 567/2081 cut-off events. For 22122/23263 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 17987 event pairs, 12 based on Foata normal form. 24/2100 useless extension candidates. Maximal degree in co-relation 21196. Up to 1495 conditions per place. [2023-12-09 15:36:58,993 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 184 selfloop transitions, 104 changer transitions 800/1123 dead transitions. [2023-12-09 15:36:58,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 683 places, 1123 transitions, 35612 flow [2023-12-09 15:36:58,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-09 15:36:58,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-12-09 15:36:58,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 1782 transitions. [2023-12-09 15:36:58,995 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.526595744680851 [2023-12-09 15:36:58,995 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 1782 transitions. [2023-12-09 15:36:58,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 1782 transitions. [2023-12-09 15:36:58,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:58,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 1782 transitions. [2023-12-09 15:36:58,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 49.5) internal successors, (1782), 36 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:59,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 94.0) internal successors, (3478), 37 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:59,000 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 94.0) internal successors, (3478), 37 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:59,001 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 595 predicate places. [2023-12-09 15:36:59,001 INFO L500 AbstractCegarLoop]: Abstraction has has 683 places, 1123 transitions, 35612 flow [2023-12-09 15:36:59,001 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:59,001 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:59,001 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:59,001 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-09 15:36:59,001 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:59,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:59,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1194537691, now seen corresponding path program 16 times [2023-12-09 15:36:59,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:59,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098180539] [2023-12-09 15:36:59,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:59,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:59,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:59,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:59,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098180539] [2023-12-09 15:36:59,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098180539] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:59,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:59,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:36:59,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785265970] [2023-12-09 15:36:59,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:59,435 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:36:59,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:59,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:36:59,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:36:59,436 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:36:59,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 683 places, 1123 transitions, 35612 flow. Second operand has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:59,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:59,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:36:59,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:01,045 INFO L124 PetriNetUnfolderBase]: 587/2219 cut-off events. [2023-12-09 15:37:01,045 INFO L125 PetriNetUnfolderBase]: For 28023/29309 co-relation queries the response was YES. [2023-12-09 15:37:01,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29491 conditions, 2219 events. 587/2219 cut-off events. For 28023/29309 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 19848 event pairs, 18 based on Foata normal form. 33/2246 useless extension candidates. Maximal degree in co-relation 24049. Up to 1565 conditions per place. [2023-12-09 15:37:01,062 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 202 selfloop transitions, 84 changer transitions 860/1181 dead transitions. [2023-12-09 15:37:01,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 725 places, 1181 transitions, 39820 flow [2023-12-09 15:37:01,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-09 15:37:01,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2023-12-09 15:37:01,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 2107 transitions. [2023-12-09 15:37:01,069 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5212765957446809 [2023-12-09 15:37:01,069 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 2107 transitions. [2023-12-09 15:37:01,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 2107 transitions. [2023-12-09 15:37:01,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:01,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 2107 transitions. [2023-12-09 15:37:01,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 49.0) internal successors, (2107), 43 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:01,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 94.0) internal successors, (4136), 44 states have internal predecessors, (4136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:01,077 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 94.0) internal successors, (4136), 44 states have internal predecessors, (4136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:01,077 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 637 predicate places. [2023-12-09 15:37:01,077 INFO L500 AbstractCegarLoop]: Abstraction has has 725 places, 1181 transitions, 39820 flow [2023-12-09 15:37:01,077 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:01,077 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:01,077 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:01,078 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-09 15:37:01,078 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:01,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:01,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1922258831, now seen corresponding path program 17 times [2023-12-09 15:37:01,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:01,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725407976] [2023-12-09 15:37:01,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:01,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:01,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:01,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:01,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725407976] [2023-12-09 15:37:01,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725407976] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:01,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:01,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:37:01,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532372700] [2023-12-09 15:37:01,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:01,486 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:37:01,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:01,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:37:01,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:37:01,487 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:01,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 725 places, 1181 transitions, 39820 flow. Second operand has 18 states, 18 states have (on average 47.44444444444444) internal successors, (854), 18 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:01,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:01,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:01,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:02,974 INFO L124 PetriNetUnfolderBase]: 605/2315 cut-off events. [2023-12-09 15:37:02,975 INFO L125 PetriNetUnfolderBase]: For 32880/34353 co-relation queries the response was YES. [2023-12-09 15:37:02,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32184 conditions, 2315 events. 605/2315 cut-off events. For 32880/34353 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 21043 event pairs, 17 based on Foata normal form. 22/2332 useless extension candidates. Maximal degree in co-relation 28355. Up to 1617 conditions per place. [2023-12-09 15:37:02,992 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 205 selfloop transitions, 89 changer transitions 889/1218 dead transitions. [2023-12-09 15:37:02,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 755 places, 1218 transitions, 43468 flow [2023-12-09 15:37:02,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-09 15:37:02,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2023-12-09 15:37:02,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1545 transitions. [2023-12-09 15:37:02,997 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5301990391214825 [2023-12-09 15:37:02,997 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 1545 transitions. [2023-12-09 15:37:02,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 1545 transitions. [2023-12-09 15:37:02,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:02,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 1545 transitions. [2023-12-09 15:37:02,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 49.83870967741935) internal successors, (1545), 31 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:03,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 94.0) internal successors, (3008), 32 states have internal predecessors, (3008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:03,001 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 94.0) internal successors, (3008), 32 states have internal predecessors, (3008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:03,001 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 667 predicate places. [2023-12-09 15:37:03,002 INFO L500 AbstractCegarLoop]: Abstraction has has 755 places, 1218 transitions, 43468 flow [2023-12-09 15:37:03,002 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 47.44444444444444) internal successors, (854), 18 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:03,002 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:03,002 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:03,002 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-09 15:37:03,002 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:03,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:03,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1413557041, now seen corresponding path program 18 times [2023-12-09 15:37:03,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:03,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786094285] [2023-12-09 15:37:03,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:03,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:03,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:03,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:03,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786094285] [2023-12-09 15:37:03,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786094285] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:03,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:03,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:37:03,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860257530] [2023-12-09 15:37:03,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:03,380 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:37:03,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:03,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:37:03,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:37:03,381 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:03,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 755 places, 1218 transitions, 43468 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:03,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:03,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:03,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:05,190 INFO L124 PetriNetUnfolderBase]: 623/2325 cut-off events. [2023-12-09 15:37:05,190 INFO L125 PetriNetUnfolderBase]: For 34689/36146 co-relation queries the response was YES. [2023-12-09 15:37:05,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34897 conditions, 2325 events. 623/2325 cut-off events. For 34689/36146 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 21109 event pairs, 12 based on Foata normal form. 26/2347 useless extension candidates. Maximal degree in co-relation 30765. Up to 1669 conditions per place. [2023-12-09 15:37:05,207 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 204 selfloop transitions, 100 changer transitions 922/1261 dead transitions. [2023-12-09 15:37:05,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 790 places, 1261 transitions, 47495 flow [2023-12-09 15:37:05,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-09 15:37:05,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-12-09 15:37:05,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 1782 transitions. [2023-12-09 15:37:05,210 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.526595744680851 [2023-12-09 15:37:05,210 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 1782 transitions. [2023-12-09 15:37:05,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 1782 transitions. [2023-12-09 15:37:05,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:05,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 1782 transitions. [2023-12-09 15:37:05,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 49.5) internal successors, (1782), 36 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:05,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 94.0) internal successors, (3478), 37 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:05,214 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 94.0) internal successors, (3478), 37 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:05,214 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 702 predicate places. [2023-12-09 15:37:05,214 INFO L500 AbstractCegarLoop]: Abstraction has has 790 places, 1261 transitions, 47495 flow [2023-12-09 15:37:05,214 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:05,214 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:05,215 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:05,215 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-09 15:37:05,215 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:05,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:05,215 INFO L85 PathProgramCache]: Analyzing trace with hash 666865149, now seen corresponding path program 19 times [2023-12-09 15:37:05,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:05,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021768863] [2023-12-09 15:37:05,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:05,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:05,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:05,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:05,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021768863] [2023-12-09 15:37:05,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021768863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:05,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:05,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:37:05,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498032626] [2023-12-09 15:37:05,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:05,592 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:37:05,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:05,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:37:05,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:37:05,593 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:05,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 790 places, 1261 transitions, 47495 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:05,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:05,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:05,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:07,395 INFO L124 PetriNetUnfolderBase]: 655/2504 cut-off events. [2023-12-09 15:37:07,395 INFO L125 PetriNetUnfolderBase]: For 42225/44078 co-relation queries the response was YES. [2023-12-09 15:37:07,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38983 conditions, 2504 events. 655/2504 cut-off events. For 42225/44078 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 23456 event pairs, 11 based on Foata normal form. 25/2525 useless extension candidates. Maximal degree in co-relation 32095. Up to 1776 conditions per place. [2023-12-09 15:37:07,412 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 210 selfloop transitions, 84 changer transitions 1014/1343 dead transitions. [2023-12-09 15:37:07,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 822 places, 1343 transitions, 53308 flow [2023-12-09 15:37:07,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-09 15:37:07,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2023-12-09 15:37:07,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 1636 transitions. [2023-12-09 15:37:07,413 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5274016763378465 [2023-12-09 15:37:07,414 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 1636 transitions. [2023-12-09 15:37:07,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 1636 transitions. [2023-12-09 15:37:07,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:07,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 1636 transitions. [2023-12-09 15:37:07,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 49.57575757575758) internal successors, (1636), 33 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:07,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 94.0) internal successors, (3196), 34 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:07,417 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 94.0) internal successors, (3196), 34 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:07,418 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 734 predicate places. [2023-12-09 15:37:07,418 INFO L500 AbstractCegarLoop]: Abstraction has has 822 places, 1343 transitions, 53308 flow [2023-12-09 15:37:07,418 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:07,418 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:07,418 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:07,418 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-09 15:37:07,418 INFO L425 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:07,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:07,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1541470627, now seen corresponding path program 20 times [2023-12-09 15:37:07,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:07,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267788223] [2023-12-09 15:37:07,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:07,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:07,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:07,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:07,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267788223] [2023-12-09 15:37:07,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267788223] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:07,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:07,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:37:07,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435090751] [2023-12-09 15:37:07,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:07,803 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:37:07,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:07,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:37:07,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:37:07,804 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:07,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 822 places, 1343 transitions, 53308 flow. Second operand has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:07,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:07,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:07,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:09,838 INFO L124 PetriNetUnfolderBase]: 676/2647 cut-off events. [2023-12-09 15:37:09,838 INFO L125 PetriNetUnfolderBase]: For 51884/54051 co-relation queries the response was YES. [2023-12-09 15:37:09,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43139 conditions, 2647 events. 676/2647 cut-off events. For 51884/54051 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 25524 event pairs, 13 based on Foata normal form. 43/2686 useless extension candidates. Maximal degree in co-relation 32002. Up to 1875 conditions per place. [2023-12-09 15:37:09,856 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 208 selfloop transitions, 77 changer transitions 1106/1426 dead transitions. [2023-12-09 15:37:09,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 864 places, 1426 transitions, 59503 flow [2023-12-09 15:37:09,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-09 15:37:09,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2023-12-09 15:37:09,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 2107 transitions. [2023-12-09 15:37:09,858 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5212765957446809 [2023-12-09 15:37:09,858 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 2107 transitions. [2023-12-09 15:37:09,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 2107 transitions. [2023-12-09 15:37:09,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:09,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 2107 transitions. [2023-12-09 15:37:09,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 49.0) internal successors, (2107), 43 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:09,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 94.0) internal successors, (4136), 44 states have internal predecessors, (4136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:09,863 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 94.0) internal successors, (4136), 44 states have internal predecessors, (4136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:09,863 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 776 predicate places. [2023-12-09 15:37:09,863 INFO L500 AbstractCegarLoop]: Abstraction has has 864 places, 1426 transitions, 59503 flow [2023-12-09 15:37:09,863 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:09,863 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:09,863 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:09,863 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-09 15:37:09,864 INFO L425 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:09,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:09,864 INFO L85 PathProgramCache]: Analyzing trace with hash -671874515, now seen corresponding path program 21 times [2023-12-09 15:37:09,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:09,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554093774] [2023-12-09 15:37:09,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:09,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:10,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:10,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:10,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554093774] [2023-12-09 15:37:10,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554093774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:10,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:10,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:37:10,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113374553] [2023-12-09 15:37:10,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:10,245 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:37:10,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:10,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:37:10,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:37:10,246 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:10,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 864 places, 1426 transitions, 59503 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:10,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:10,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:10,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:12,532 INFO L124 PetriNetUnfolderBase]: 692/2723 cut-off events. [2023-12-09 15:37:12,532 INFO L125 PetriNetUnfolderBase]: For 58626/60873 co-relation queries the response was YES. [2023-12-09 15:37:12,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46451 conditions, 2723 events. 692/2723 cut-off events. For 58626/60873 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 26507 event pairs, 6 based on Foata normal form. 23/2743 useless extension candidates. Maximal degree in co-relation 39185. Up to 1931 conditions per place. [2023-12-09 15:37:12,554 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 189 selfloop transitions, 98 changer transitions 1153/1475 dead transitions. [2023-12-09 15:37:12,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 896 places, 1475 transitions, 64480 flow [2023-12-09 15:37:12,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-09 15:37:12,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2023-12-09 15:37:12,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 1639 transitions. [2023-12-09 15:37:12,556 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5283687943262412 [2023-12-09 15:37:12,556 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 1639 transitions. [2023-12-09 15:37:12,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 1639 transitions. [2023-12-09 15:37:12,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:12,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 1639 transitions. [2023-12-09 15:37:12,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 49.666666666666664) internal successors, (1639), 33 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:12,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 94.0) internal successors, (3196), 34 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:12,559 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 94.0) internal successors, (3196), 34 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:12,560 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 808 predicate places. [2023-12-09 15:37:12,560 INFO L500 AbstractCegarLoop]: Abstraction has has 896 places, 1475 transitions, 64480 flow [2023-12-09 15:37:12,560 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:12,560 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:12,560 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:12,560 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-09 15:37:12,560 INFO L425 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:12,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:12,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1519517135, now seen corresponding path program 22 times [2023-12-09 15:37:12,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:12,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449736678] [2023-12-09 15:37:12,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:12,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:12,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:12,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:12,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449736678] [2023-12-09 15:37:12,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449736678] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:12,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:12,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-12-09 15:37:12,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003342891] [2023-12-09 15:37:12,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:12,950 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-09 15:37:12,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:12,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-09 15:37:12,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2023-12-09 15:37:12,951 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:12,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 896 places, 1475 transitions, 64480 flow. Second operand has 21 states, 21 states have (on average 47.095238095238095) internal successors, (989), 21 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:12,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:12,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:12,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:15,623 INFO L124 PetriNetUnfolderBase]: 702/2808 cut-off events. [2023-12-09 15:37:15,624 INFO L125 PetriNetUnfolderBase]: For 66394/68782 co-relation queries the response was YES. [2023-12-09 15:37:15,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49602 conditions, 2808 events. 702/2808 cut-off events. For 66394/68782 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 27700 event pairs, 10 based on Foata normal form. 44/2849 useless extension candidates. Maximal degree in co-relation 41777. Up to 1974 conditions per place. [2023-12-09 15:37:15,647 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 206 selfloop transitions, 77 changer transitions 1196/1514 dead transitions. [2023-12-09 15:37:15,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 945 places, 1514 transitions, 69196 flow [2023-12-09 15:37:15,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-09 15:37:15,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2023-12-09 15:37:15,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 2434 transitions. [2023-12-09 15:37:15,649 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5178723404255319 [2023-12-09 15:37:15,649 INFO L72 ComplementDD]: Start complementDD. Operand 50 states and 2434 transitions. [2023-12-09 15:37:15,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 2434 transitions. [2023-12-09 15:37:15,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:15,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 50 states and 2434 transitions. [2023-12-09 15:37:15,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 51 states, 50 states have (on average 48.68) internal successors, (2434), 50 states have internal predecessors, (2434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:15,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 51 states, 51 states have (on average 94.0) internal successors, (4794), 51 states have internal predecessors, (4794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:15,654 INFO L81 ComplementDD]: Finished complementDD. Result has 51 states, 51 states have (on average 94.0) internal successors, (4794), 51 states have internal predecessors, (4794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:15,655 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 857 predicate places. [2023-12-09 15:37:15,655 INFO L500 AbstractCegarLoop]: Abstraction has has 945 places, 1514 transitions, 69196 flow [2023-12-09 15:37:15,655 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 47.095238095238095) internal successors, (989), 21 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:15,655 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:15,655 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:15,655 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-09 15:37:15,657 INFO L425 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:15,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:15,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1169954707, now seen corresponding path program 23 times [2023-12-09 15:37:15,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:15,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391074201] [2023-12-09 15:37:15,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:15,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:16,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:16,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:16,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391074201] [2023-12-09 15:37:16,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391074201] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:16,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:16,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-09 15:37:16,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825965299] [2023-12-09 15:37:16,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:16,122 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-09 15:37:16,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:16,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-09 15:37:16,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2023-12-09 15:37:16,123 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:16,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 945 places, 1514 transitions, 69196 flow. Second operand has 22 states, 22 states have (on average 47.0) internal successors, (1034), 22 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:16,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:16,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:16,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:19,040 INFO L124 PetriNetUnfolderBase]: 701/2995 cut-off events. [2023-12-09 15:37:19,040 INFO L125 PetriNetUnfolderBase]: For 84337/87018 co-relation queries the response was YES. [2023-12-09 15:37:19,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53344 conditions, 2995 events. 701/2995 cut-off events. For 84337/87018 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 30410 event pairs, 14 based on Foata normal form. 34/3025 useless extension candidates. Maximal degree in co-relation 44332. Up to 2029 conditions per place. [2023-12-09 15:37:19,065 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 199 selfloop transitions, 65 changer transitions 1271/1570 dead transitions. [2023-12-09 15:37:19,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 998 places, 1570 transitions, 74902 flow [2023-12-09 15:37:19,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-12-09 15:37:19,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2023-12-09 15:37:19,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 2619 transitions. [2023-12-09 15:37:19,068 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5159574468085106 [2023-12-09 15:37:19,068 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 2619 transitions. [2023-12-09 15:37:19,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 2619 transitions. [2023-12-09 15:37:19,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:19,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 2619 transitions. [2023-12-09 15:37:19,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 48.5) internal successors, (2619), 54 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:19,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 94.0) internal successors, (5170), 55 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:19,073 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 94.0) internal successors, (5170), 55 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:19,074 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 910 predicate places. [2023-12-09 15:37:19,074 INFO L500 AbstractCegarLoop]: Abstraction has has 998 places, 1570 transitions, 74902 flow [2023-12-09 15:37:19,074 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 47.0) internal successors, (1034), 22 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:19,074 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:19,074 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:19,074 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-09 15:37:19,074 INFO L425 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:19,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:19,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1426142355, now seen corresponding path program 24 times [2023-12-09 15:37:19,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:19,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859669329] [2023-12-09 15:37:19,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:19,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:19,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:19,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:19,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859669329] [2023-12-09 15:37:19,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859669329] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:19,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:19,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:37:19,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369890525] [2023-12-09 15:37:19,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:19,401 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:37:19,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:19,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:37:19,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:37:19,402 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:19,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 998 places, 1570 transitions, 74902 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:19,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:19,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:19,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:21,843 INFO L124 PetriNetUnfolderBase]: 713/2994 cut-off events. [2023-12-09 15:37:21,843 INFO L125 PetriNetUnfolderBase]: For 89685/92750 co-relation queries the response was YES. [2023-12-09 15:37:21,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56433 conditions, 2994 events. 713/2994 cut-off events. For 89685/92750 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 30464 event pairs, 14 based on Foata normal form. 32/3022 useless extension candidates. Maximal degree in co-relation 45068. Up to 2066 conditions per place. [2023-12-09 15:37:21,871 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 184 selfloop transitions, 84 changer transitions 1300/1603 dead transitions. [2023-12-09 15:37:21,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1033 places, 1603 transitions, 79646 flow [2023-12-09 15:37:21,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-09 15:37:21,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-12-09 15:37:21,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 1782 transitions. [2023-12-09 15:37:21,873 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.526595744680851 [2023-12-09 15:37:21,873 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 1782 transitions. [2023-12-09 15:37:21,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 1782 transitions. [2023-12-09 15:37:21,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:21,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 1782 transitions. [2023-12-09 15:37:21,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 49.5) internal successors, (1782), 36 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:21,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 94.0) internal successors, (3478), 37 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:21,876 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 94.0) internal successors, (3478), 37 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:21,877 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 945 predicate places. [2023-12-09 15:37:21,877 INFO L500 AbstractCegarLoop]: Abstraction has has 1033 places, 1603 transitions, 79646 flow [2023-12-09 15:37:21,877 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:21,877 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:21,877 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:21,877 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-09 15:37:21,877 INFO L425 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:21,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:21,878 INFO L85 PathProgramCache]: Analyzing trace with hash -170189185, now seen corresponding path program 25 times [2023-12-09 15:37:21,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:21,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992782246] [2023-12-09 15:37:21,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:21,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:22,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:22,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:22,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992782246] [2023-12-09 15:37:22,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992782246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:22,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:22,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:37:22,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806620072] [2023-12-09 15:37:22,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:22,387 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:37:22,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:22,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:37:22,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:37:22,388 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:22,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1033 places, 1603 transitions, 79646 flow. Second operand has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:22,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:22,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:22,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:25,257 INFO L124 PetriNetUnfolderBase]: 739/3222 cut-off events. [2023-12-09 15:37:25,257 INFO L125 PetriNetUnfolderBase]: For 109139/112621 co-relation queries the response was YES. [2023-12-09 15:37:25,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62057 conditions, 3222 events. 739/3222 cut-off events. For 109139/112621 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 33766 event pairs, 7 based on Foata normal form. 38/3257 useless extension candidates. Maximal degree in co-relation 53016. Up to 2186 conditions per place. [2023-12-09 15:37:25,282 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 179 selfloop transitions, 90 changer transitions 1412/1716 dead transitions. [2023-12-09 15:37:25,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1075 places, 1716 transitions, 88763 flow [2023-12-09 15:37:25,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-09 15:37:25,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2023-12-09 15:37:25,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 2112 transitions. [2023-12-09 15:37:25,285 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5225136071251856 [2023-12-09 15:37:25,285 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 2112 transitions. [2023-12-09 15:37:25,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 2112 transitions. [2023-12-09 15:37:25,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:25,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 2112 transitions. [2023-12-09 15:37:25,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 49.116279069767444) internal successors, (2112), 43 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:25,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 94.0) internal successors, (4136), 44 states have internal predecessors, (4136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:25,289 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 94.0) internal successors, (4136), 44 states have internal predecessors, (4136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:25,290 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 987 predicate places. [2023-12-09 15:37:25,290 INFO L500 AbstractCegarLoop]: Abstraction has has 1075 places, 1716 transitions, 88763 flow [2023-12-09 15:37:25,290 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:25,290 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:25,290 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:25,290 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-09 15:37:25,290 INFO L425 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:25,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:25,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1750128065, now seen corresponding path program 26 times [2023-12-09 15:37:25,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:25,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967534002] [2023-12-09 15:37:25,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:25,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:25,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:25,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:25,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967534002] [2023-12-09 15:37:25,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967534002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:25,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:25,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:37:25,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416710226] [2023-12-09 15:37:25,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:25,688 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:37:25,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:25,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:37:25,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:37:25,691 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:25,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1075 places, 1716 transitions, 88763 flow. Second operand has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:25,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:25,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:25,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:28,886 INFO L124 PetriNetUnfolderBase]: 749/3277 cut-off events. [2023-12-09 15:37:28,886 INFO L125 PetriNetUnfolderBase]: For 120749/124467 co-relation queries the response was YES. [2023-12-09 15:37:28,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65629 conditions, 3277 events. 749/3277 cut-off events. For 120749/124467 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 34501 event pairs, 12 based on Foata normal form. 48/3321 useless extension candidates. Maximal degree in co-relation 54280. Up to 2229 conditions per place. [2023-12-09 15:37:28,914 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 181 selfloop transitions, 84 changer transitions 1454/1754 dead transitions. [2023-12-09 15:37:28,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1117 places, 1754 transitions, 94219 flow [2023-12-09 15:37:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-09 15:37:28,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2023-12-09 15:37:28,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 2112 transitions. [2023-12-09 15:37:28,917 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5225136071251856 [2023-12-09 15:37:28,917 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 2112 transitions. [2023-12-09 15:37:28,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 2112 transitions. [2023-12-09 15:37:28,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:28,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 2112 transitions. [2023-12-09 15:37:28,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 49.116279069767444) internal successors, (2112), 43 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:28,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 94.0) internal successors, (4136), 44 states have internal predecessors, (4136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:28,939 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 94.0) internal successors, (4136), 44 states have internal predecessors, (4136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:28,939 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1029 predicate places. [2023-12-09 15:37:28,940 INFO L500 AbstractCegarLoop]: Abstraction has has 1117 places, 1754 transitions, 94219 flow [2023-12-09 15:37:28,940 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:28,940 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:28,940 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:28,940 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-09 15:37:28,940 INFO L425 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:28,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:28,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1452755293, now seen corresponding path program 27 times [2023-12-09 15:37:28,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:28,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237295259] [2023-12-09 15:37:28,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:28,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:29,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:29,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:29,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237295259] [2023-12-09 15:37:29,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237295259] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:29,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:29,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:37:29,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760151353] [2023-12-09 15:37:29,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:29,328 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:37:29,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:29,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:37:29,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:37:29,329 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:29,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1117 places, 1754 transitions, 94219 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:29,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:29,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:29,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:32,544 INFO L124 PetriNetUnfolderBase]: 754/3324 cut-off events. [2023-12-09 15:37:32,544 INFO L125 PetriNetUnfolderBase]: For 131949/135753 co-relation queries the response was YES. [2023-12-09 15:37:32,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68707 conditions, 3324 events. 754/3324 cut-off events. For 131949/135753 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 35069 event pairs, 6 based on Foata normal form. 25/3345 useless extension candidates. Maximal degree in co-relation 54721. Up to 2252 conditions per place. [2023-12-09 15:37:32,573 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 172 selfloop transitions, 99 changer transitions 1473/1779 dead transitions. [2023-12-09 15:37:32,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1147 places, 1779 transitions, 99063 flow [2023-12-09 15:37:32,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-09 15:37:32,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2023-12-09 15:37:32,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1543 transitions. [2023-12-09 15:37:32,575 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.529512697323267 [2023-12-09 15:37:32,575 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 1543 transitions. [2023-12-09 15:37:32,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 1543 transitions. [2023-12-09 15:37:32,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:32,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 1543 transitions. [2023-12-09 15:37:32,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 49.774193548387096) internal successors, (1543), 31 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:32,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 94.0) internal successors, (3008), 32 states have internal predecessors, (3008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:32,578 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 94.0) internal successors, (3008), 32 states have internal predecessors, (3008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:32,578 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1059 predicate places. [2023-12-09 15:37:32,578 INFO L500 AbstractCegarLoop]: Abstraction has has 1147 places, 1779 transitions, 99063 flow [2023-12-09 15:37:32,578 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:32,579 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:32,579 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:32,579 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-09 15:37:32,579 INFO L425 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:32,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:32,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1215625087, now seen corresponding path program 28 times [2023-12-09 15:37:32,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:32,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938280424] [2023-12-09 15:37:32,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:32,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:32,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:32,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:32,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938280424] [2023-12-09 15:37:32,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938280424] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:32,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:32,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:37:32,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750449009] [2023-12-09 15:37:32,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:32,904 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:37:32,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:32,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:37:32,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:37:32,905 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:32,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1147 places, 1779 transitions, 99063 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:32,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:32,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:32,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:36,124 INFO L124 PetriNetUnfolderBase]: 771/3432 cut-off events. [2023-12-09 15:37:36,124 INFO L125 PetriNetUnfolderBase]: For 146121/150170 co-relation queries the response was YES. [2023-12-09 15:37:36,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73223 conditions, 3432 events. 771/3432 cut-off events. For 146121/150170 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 36845 event pairs, 6 based on Foata normal form. 30/3458 useless extension candidates. Maximal degree in co-relation 62277. Up to 2320 conditions per place. [2023-12-09 15:37:36,158 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 176 selfloop transitions, 99 changer transitions 1530/1840 dead transitions. [2023-12-09 15:37:36,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1182 places, 1840 transitions, 106134 flow [2023-12-09 15:37:36,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-09 15:37:36,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-12-09 15:37:36,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 1785 transitions. [2023-12-09 15:37:36,159 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5274822695035462 [2023-12-09 15:37:36,159 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 1785 transitions. [2023-12-09 15:37:36,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 1785 transitions. [2023-12-09 15:37:36,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:36,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 1785 transitions. [2023-12-09 15:37:36,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 49.583333333333336) internal successors, (1785), 36 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:36,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 94.0) internal successors, (3478), 37 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:36,266 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 94.0) internal successors, (3478), 37 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:36,267 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1094 predicate places. [2023-12-09 15:37:36,267 INFO L500 AbstractCegarLoop]: Abstraction has has 1182 places, 1840 transitions, 106134 flow [2023-12-09 15:37:36,267 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:36,267 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:36,267 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:36,267 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-09 15:37:36,267 INFO L425 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:36,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:36,268 INFO L85 PathProgramCache]: Analyzing trace with hash -192045187, now seen corresponding path program 29 times [2023-12-09 15:37:36,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:36,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533969887] [2023-12-09 15:37:36,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:36,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:36,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:36,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:36,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533969887] [2023-12-09 15:37:36,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533969887] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:36,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:36,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:37:36,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696689935] [2023-12-09 15:37:36,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:36,674 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:37:36,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:36,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:37:36,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:37:36,676 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:36,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1182 places, 1840 transitions, 106134 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:36,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:36,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:36,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:40,203 INFO L124 PetriNetUnfolderBase]: 774/3447 cut-off events. [2023-12-09 15:37:40,203 INFO L125 PetriNetUnfolderBase]: For 156559/161055 co-relation queries the response was YES. [2023-12-09 15:37:40,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76238 conditions, 3447 events. 774/3447 cut-off events. For 156559/161055 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 37016 event pairs, 6 based on Foata normal form. 23/3466 useless extension candidates. Maximal degree in co-relation 64769. Up to 2337 conditions per place. [2023-12-09 15:37:40,230 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 173 selfloop transitions, 104 changer transitions 1547/1859 dead transitions. [2023-12-09 15:37:40,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1217 places, 1859 transitions, 110893 flow [2023-12-09 15:37:40,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-09 15:37:40,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-12-09 15:37:40,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 1779 transitions. [2023-12-09 15:37:40,232 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.525709219858156 [2023-12-09 15:37:40,232 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 1779 transitions. [2023-12-09 15:37:40,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 1779 transitions. [2023-12-09 15:37:40,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:40,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 1779 transitions. [2023-12-09 15:37:40,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 49.416666666666664) internal successors, (1779), 36 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:40,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 94.0) internal successors, (3478), 37 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:40,235 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 94.0) internal successors, (3478), 37 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:40,236 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1129 predicate places. [2023-12-09 15:37:40,236 INFO L500 AbstractCegarLoop]: Abstraction has has 1217 places, 1859 transitions, 110893 flow [2023-12-09 15:37:40,236 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:40,236 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:40,236 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:40,236 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-09 15:37:40,236 INFO L425 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:40,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:40,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1464606913, now seen corresponding path program 30 times [2023-12-09 15:37:40,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:40,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876224006] [2023-12-09 15:37:40,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:40,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:40,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:40,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:40,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876224006] [2023-12-09 15:37:40,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876224006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:40,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:40,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:37:40,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269012298] [2023-12-09 15:37:40,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:40,599 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:37:40,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:40,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:37:40,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:37:40,600 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:40,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1217 places, 1859 transitions, 110893 flow. Second operand has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:40,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:40,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:40,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:44,439 INFO L124 PetriNetUnfolderBase]: 776/3607 cut-off events. [2023-12-09 15:37:44,439 INFO L125 PetriNetUnfolderBase]: For 183788/188798 co-relation queries the response was YES. [2023-12-09 15:37:44,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80709 conditions, 3607 events. 776/3607 cut-off events. For 183788/188798 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 39450 event pairs, 7 based on Foata normal form. 32/3635 useless extension candidates. Maximal degree in co-relation 63673. Up to 2391 conditions per place. [2023-12-09 15:37:44,472 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 171 selfloop transitions, 93 changer transitions 1617/1916 dead transitions. [2023-12-09 15:37:44,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1256 places, 1916 transitions, 118126 flow [2023-12-09 15:37:44,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-09 15:37:44,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2023-12-09 15:37:44,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 1971 transitions. [2023-12-09 15:37:44,473 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5242021276595744 [2023-12-09 15:37:44,474 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 1971 transitions. [2023-12-09 15:37:44,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 1971 transitions. [2023-12-09 15:37:44,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:44,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 1971 transitions. [2023-12-09 15:37:44,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 49.275) internal successors, (1971), 40 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:44,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 94.0) internal successors, (3854), 41 states have internal predecessors, (3854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:44,478 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 94.0) internal successors, (3854), 41 states have internal predecessors, (3854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:44,478 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1168 predicate places. [2023-12-09 15:37:44,479 INFO L500 AbstractCegarLoop]: Abstraction has has 1256 places, 1916 transitions, 118126 flow [2023-12-09 15:37:44,479 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:44,479 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:44,479 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:44,480 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-09 15:37:44,480 INFO L425 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:44,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:44,480 INFO L85 PathProgramCache]: Analyzing trace with hash 226698169, now seen corresponding path program 31 times [2023-12-09 15:37:44,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:44,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590907407] [2023-12-09 15:37:44,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:44,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:44,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:44,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:44,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:44,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590907407] [2023-12-09 15:37:44,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590907407] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:44,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:44,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:37:44,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134130318] [2023-12-09 15:37:44,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:44,872 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:37:44,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:44,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:37:44,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:37:44,873 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:44,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1256 places, 1916 transitions, 118126 flow. Second operand has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:44,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:44,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:44,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:49,009 INFO L124 PetriNetUnfolderBase]: 785/3685 cut-off events. [2023-12-09 15:37:49,009 INFO L125 PetriNetUnfolderBase]: For 204062/209510 co-relation queries the response was YES. [2023-12-09 15:37:49,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85497 conditions, 3685 events. 785/3685 cut-off events. For 204062/209510 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 40828 event pairs, 7 based on Foata normal form. 32/3712 useless extension candidates. Maximal degree in co-relation 67915. Up to 2455 conditions per place. [2023-12-09 15:37:49,039 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 185 selfloop transitions, 81 changer transitions 1677/1978 dead transitions. [2023-12-09 15:37:49,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1293 places, 1978 transitions, 125904 flow [2023-12-09 15:37:49,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-09 15:37:49,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2023-12-09 15:37:49,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 1870 transitions. [2023-12-09 15:37:49,042 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5235162374020157 [2023-12-09 15:37:49,042 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 1870 transitions. [2023-12-09 15:37:49,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 1870 transitions. [2023-12-09 15:37:49,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:49,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 1870 transitions. [2023-12-09 15:37:49,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 49.21052631578947) internal successors, (1870), 38 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:49,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 94.0) internal successors, (3666), 39 states have internal predecessors, (3666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:49,047 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 94.0) internal successors, (3666), 39 states have internal predecessors, (3666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:49,047 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1205 predicate places. [2023-12-09 15:37:49,047 INFO L500 AbstractCegarLoop]: Abstraction has has 1293 places, 1978 transitions, 125904 flow [2023-12-09 15:37:49,047 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:49,047 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:49,048 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:49,048 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-09 15:37:49,048 INFO L425 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:49,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:49,048 INFO L85 PathProgramCache]: Analyzing trace with hash 189425841, now seen corresponding path program 32 times [2023-12-09 15:37:49,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:49,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293983988] [2023-12-09 15:37:49,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:49,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:49,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:49,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:49,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293983988] [2023-12-09 15:37:49,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293983988] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:49,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:49,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:37:49,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756735964] [2023-12-09 15:37:49,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:49,360 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:37:49,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:49,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:37:49,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:37:49,361 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:49,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1293 places, 1978 transitions, 125904 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:49,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:49,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:49,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:53,783 INFO L124 PetriNetUnfolderBase]: 785/3727 cut-off events. [2023-12-09 15:37:53,783 INFO L125 PetriNetUnfolderBase]: For 222644/228212 co-relation queries the response was YES. [2023-12-09 15:37:53,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88452 conditions, 3727 events. 785/3727 cut-off events. For 222644/228212 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 41369 event pairs, 6 based on Foata normal form. 35/3758 useless extension candidates. Maximal degree in co-relation 64884. Up to 2463 conditions per place. [2023-12-09 15:37:53,811 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 165 selfloop transitions, 86 changer transitions 1702/1988 dead transitions. [2023-12-09 15:37:53,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1327 places, 1988 transitions, 130465 flow [2023-12-09 15:37:53,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-09 15:37:53,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-12-09 15:37:53,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 1731 transitions. [2023-12-09 15:37:53,812 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5261398176291794 [2023-12-09 15:37:53,812 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 1731 transitions. [2023-12-09 15:37:53,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 1731 transitions. [2023-12-09 15:37:53,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:53,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 1731 transitions. [2023-12-09 15:37:53,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 49.457142857142856) internal successors, (1731), 35 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:53,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 94.0) internal successors, (3384), 36 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:53,816 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 94.0) internal successors, (3384), 36 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:53,816 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1239 predicate places. [2023-12-09 15:37:53,816 INFO L500 AbstractCegarLoop]: Abstraction has has 1327 places, 1988 transitions, 130465 flow [2023-12-09 15:37:53,816 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:53,816 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:53,816 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:53,816 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-09 15:37:53,817 INFO L425 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:53,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:53,817 INFO L85 PathProgramCache]: Analyzing trace with hash -481764401, now seen corresponding path program 33 times [2023-12-09 15:37:53,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:53,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588279099] [2023-12-09 15:37:53,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:53,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:54,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:54,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:54,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588279099] [2023-12-09 15:37:54,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588279099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:54,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:54,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:37:54,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71626430] [2023-12-09 15:37:54,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:54,209 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:37:54,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:54,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:37:54,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:37:54,213 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:54,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1327 places, 1988 transitions, 130465 flow. Second operand has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:54,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:54,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:54,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:58,823 INFO L124 PetriNetUnfolderBase]: 786/3784 cut-off events. [2023-12-09 15:37:58,823 INFO L125 PetriNetUnfolderBase]: For 245407/251471 co-relation queries the response was YES. [2023-12-09 15:37:58,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91839 conditions, 3784 events. 786/3784 cut-off events. For 245407/251471 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 42297 event pairs, 4 based on Foata normal form. 42/3823 useless extension candidates. Maximal degree in co-relation 71805. Up to 2482 conditions per place. [2023-12-09 15:37:58,853 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 164 selfloop transitions, 77 changer transitions 1733/2009 dead transitions. [2023-12-09 15:37:58,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1368 places, 2009 transitions, 135823 flow [2023-12-09 15:37:58,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-09 15:37:58,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2023-12-09 15:37:58,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 2066 transitions. [2023-12-09 15:37:58,856 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5233029381965553 [2023-12-09 15:37:58,856 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 2066 transitions. [2023-12-09 15:37:58,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 2066 transitions. [2023-12-09 15:37:58,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:58,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 2066 transitions. [2023-12-09 15:37:58,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 49.19047619047619) internal successors, (2066), 42 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:58,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 94.0) internal successors, (4042), 43 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:58,863 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 94.0) internal successors, (4042), 43 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:58,863 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1280 predicate places. [2023-12-09 15:37:58,864 INFO L500 AbstractCegarLoop]: Abstraction has has 1368 places, 2009 transitions, 135823 flow [2023-12-09 15:37:58,864 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:58,864 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:58,864 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:58,864 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-09 15:37:58,864 INFO L425 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:58,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:58,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1126035689, now seen corresponding path program 34 times [2023-12-09 15:37:58,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:58,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173117331] [2023-12-09 15:37:58,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:58,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:59,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:59,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173117331] [2023-12-09 15:37:59,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173117331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:59,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:59,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:37:59,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592620334] [2023-12-09 15:37:59,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:59,247 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:37:59,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:59,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:37:59,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:37:59,248 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:37:59,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1368 places, 2009 transitions, 135823 flow. Second operand has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:59,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:59,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:37:59,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:38:04,169 INFO L124 PetriNetUnfolderBase]: 787/3839 cut-off events. [2023-12-09 15:38:04,170 INFO L125 PetriNetUnfolderBase]: For 261869/268067 co-relation queries the response was YES. [2023-12-09 15:38:04,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95575 conditions, 3839 events. 787/3839 cut-off events. For 261869/268067 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 43193 event pairs, 8 based on Foata normal form. 46/3881 useless extension candidates. Maximal degree in co-relation 74428. Up to 2509 conditions per place. [2023-12-09 15:38:04,208 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 160 selfloop transitions, 66 changer transitions 1777/2038 dead transitions. [2023-12-09 15:38:04,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1407 places, 2038 transitions, 141834 flow [2023-12-09 15:38:04,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-09 15:38:04,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2023-12-09 15:38:04,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 1965 transitions. [2023-12-09 15:38:04,210 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5226063829787234 [2023-12-09 15:38:04,210 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 1965 transitions. [2023-12-09 15:38:04,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 1965 transitions. [2023-12-09 15:38:04,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:38:04,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 1965 transitions. [2023-12-09 15:38:04,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 49.125) internal successors, (1965), 40 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:04,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 94.0) internal successors, (3854), 41 states have internal predecessors, (3854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:04,217 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 94.0) internal successors, (3854), 41 states have internal predecessors, (3854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:04,218 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1319 predicate places. [2023-12-09 15:38:04,218 INFO L500 AbstractCegarLoop]: Abstraction has has 1407 places, 2038 transitions, 141834 flow [2023-12-09 15:38:04,218 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:04,218 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:38:04,218 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:38:04,218 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-09 15:38:04,219 INFO L425 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:38:04,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:38:04,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1084370791, now seen corresponding path program 35 times [2023-12-09 15:38:04,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:38:04,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613030638] [2023-12-09 15:38:04,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:38:04,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:38:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:38:04,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:38:04,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:38:04,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613030638] [2023-12-09 15:38:04,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613030638] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:38:04,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:38:04,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-12-09 15:38:04,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736249328] [2023-12-09 15:38:04,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:38:04,577 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-09 15:38:04,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:38:04,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-09 15:38:04,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2023-12-09 15:38:04,578 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:38:04,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1407 places, 2038 transitions, 141834 flow. Second operand has 21 states, 21 states have (on average 47.095238095238095) internal successors, (989), 21 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:04,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:38:04,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:38:04,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:38:09,716 INFO L124 PetriNetUnfolderBase]: 790/3861 cut-off events. [2023-12-09 15:38:09,717 INFO L125 PetriNetUnfolderBase]: For 280081/286677 co-relation queries the response was YES. [2023-12-09 15:38:09,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98878 conditions, 3861 events. 790/3861 cut-off events. For 280081/286677 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 43490 event pairs, 4 based on Foata normal form. 45/3903 useless extension candidates. Maximal degree in co-relation 79626. Up to 2525 conditions per place. [2023-12-09 15:38:09,760 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 149 selfloop transitions, 76 changer transitions 1801/2061 dead transitions. [2023-12-09 15:38:09,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1455 places, 2061 transitions, 147511 flow [2023-12-09 15:38:09,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-09 15:38:09,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2023-12-09 15:38:09,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 2390 transitions. [2023-12-09 15:38:09,762 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5188884064264003 [2023-12-09 15:38:09,762 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 2390 transitions. [2023-12-09 15:38:09,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 2390 transitions. [2023-12-09 15:38:09,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:38:09,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 2390 transitions. [2023-12-09 15:38:09,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 48.775510204081634) internal successors, (2390), 49 states have internal predecessors, (2390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:09,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 94.0) internal successors, (4700), 50 states have internal predecessors, (4700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:09,766 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 94.0) internal successors, (4700), 50 states have internal predecessors, (4700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:09,766 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1367 predicate places. [2023-12-09 15:38:09,766 INFO L500 AbstractCegarLoop]: Abstraction has has 1455 places, 2061 transitions, 147511 flow [2023-12-09 15:38:09,767 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 47.095238095238095) internal successors, (989), 21 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:09,767 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:38:09,767 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:38:09,767 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-09 15:38:09,767 INFO L425 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:38:09,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:38:09,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1375796125, now seen corresponding path program 36 times [2023-12-09 15:38:09,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:38:09,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679600220] [2023-12-09 15:38:09,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:38:09,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:38:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:38:10,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:38:10,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:38:10,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679600220] [2023-12-09 15:38:10,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679600220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:38:10,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:38:10,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-12-09 15:38:10,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411619712] [2023-12-09 15:38:10,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:38:10,267 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-09 15:38:10,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:38:10,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-09 15:38:10,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2023-12-09 15:38:10,268 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:38:10,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1455 places, 2061 transitions, 147511 flow. Second operand has 21 states, 21 states have (on average 47.095238095238095) internal successors, (989), 21 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:10,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:38:10,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:38:10,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:38:15,538 INFO L124 PetriNetUnfolderBase]: 789/3923 cut-off events. [2023-12-09 15:38:15,538 INFO L125 PetriNetUnfolderBase]: For 306531/313225 co-relation queries the response was YES. [2023-12-09 15:38:15,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103528 conditions, 3923 events. 789/3923 cut-off events. For 306531/313225 co-relation queries the response was YES. Maximal size of possible extension queue 482. Compared 44653 event pairs, 4 based on Foata normal form. 42/3962 useless extension candidates. Maximal degree in co-relation 80807. Up to 2571 conditions per place. [2023-12-09 15:38:15,576 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 142 selfloop transitions, 56 changer transitions 1875/2108 dead transitions. [2023-12-09 15:38:15,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1501 places, 2108 transitions, 155092 flow [2023-12-09 15:38:15,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-09 15:38:15,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2023-12-09 15:38:15,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 2296 transitions. [2023-12-09 15:38:15,578 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5196921684019918 [2023-12-09 15:38:15,578 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 2296 transitions. [2023-12-09 15:38:15,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 2296 transitions. [2023-12-09 15:38:15,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:38:15,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 2296 transitions. [2023-12-09 15:38:15,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 48.851063829787236) internal successors, (2296), 47 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:15,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 94.0) internal successors, (4512), 48 states have internal predecessors, (4512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:15,582 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 94.0) internal successors, (4512), 48 states have internal predecessors, (4512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:15,583 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1413 predicate places. [2023-12-09 15:38:15,583 INFO L500 AbstractCegarLoop]: Abstraction has has 1501 places, 2108 transitions, 155092 flow [2023-12-09 15:38:15,583 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 47.095238095238095) internal successors, (989), 21 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:15,583 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:38:15,583 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:38:15,583 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-09 15:38:15,583 INFO L425 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:38:15,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:38:15,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1103843419, now seen corresponding path program 37 times [2023-12-09 15:38:15,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:38:15,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734354752] [2023-12-09 15:38:15,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:38:15,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:38:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:38:15,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:38:15,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:38:15,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734354752] [2023-12-09 15:38:15,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734354752] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:38:15,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:38:15,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:38:15,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664296297] [2023-12-09 15:38:15,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:38:15,966 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:38:15,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:38:15,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:38:15,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:38:15,967 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:38:15,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1501 places, 2108 transitions, 155092 flow. Second operand has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:15,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:38:15,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:38:15,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:38:21,593 INFO L124 PetriNetUnfolderBase]: 829/4093 cut-off events. [2023-12-09 15:38:21,594 INFO L125 PetriNetUnfolderBase]: For 336848/343882 co-relation queries the response was YES. [2023-12-09 15:38:21,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110200 conditions, 4093 events. 829/4093 cut-off events. For 336848/343882 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 46700 event pairs, 50 based on Foata normal form. 36/4126 useless extension candidates. Maximal degree in co-relation 88546. Up to 2671 conditions per place. [2023-12-09 15:38:21,633 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 145 selfloop transitions, 82 changer transitions 1920/2182 dead transitions. [2023-12-09 15:38:21,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1539 places, 2182 transitions, 164904 flow [2023-12-09 15:38:21,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-09 15:38:21,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2023-12-09 15:38:21,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 1919 transitions. [2023-12-09 15:38:21,635 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5234588106928533 [2023-12-09 15:38:21,635 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 1919 transitions. [2023-12-09 15:38:21,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 1919 transitions. [2023-12-09 15:38:21,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:38:21,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 1919 transitions. [2023-12-09 15:38:21,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 49.205128205128204) internal successors, (1919), 39 states have internal predecessors, (1919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:21,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 94.0) internal successors, (3760), 40 states have internal predecessors, (3760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:21,638 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 94.0) internal successors, (3760), 40 states have internal predecessors, (3760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:21,638 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1451 predicate places. [2023-12-09 15:38:21,638 INFO L500 AbstractCegarLoop]: Abstraction has has 1539 places, 2182 transitions, 164904 flow [2023-12-09 15:38:21,638 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:21,638 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:38:21,639 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:38:21,639 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-09 15:38:21,639 INFO L425 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:38:21,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:38:21,639 INFO L85 PathProgramCache]: Analyzing trace with hash -269667351, now seen corresponding path program 38 times [2023-12-09 15:38:21,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:38:21,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530483844] [2023-12-09 15:38:21,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:38:21,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:38:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:38:21,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:38:21,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:38:21,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530483844] [2023-12-09 15:38:21,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530483844] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:38:21,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:38:21,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:38:21,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916794894] [2023-12-09 15:38:21,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:38:21,933 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:38:21,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:38:21,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:38:21,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:38:21,934 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:38:21,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1539 places, 2182 transitions, 164904 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:21,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:38:21,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:38:21,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:38:28,115 INFO L124 PetriNetUnfolderBase]: 872/4161 cut-off events. [2023-12-09 15:38:28,115 INFO L125 PetriNetUnfolderBase]: For 351520/358969 co-relation queries the response was YES. [2023-12-09 15:38:28,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116966 conditions, 4161 events. 872/4161 cut-off events. For 351520/358969 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 47292 event pairs, 24 based on Foata normal form. 27/4185 useless extension candidates. Maximal degree in co-relation 96991. Up to 2771 conditions per place. [2023-12-09 15:38:28,152 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 179 selfloop transitions, 98 changer transitions 1943/2255 dead transitions. [2023-12-09 15:38:28,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1579 places, 2255 transitions, 174910 flow [2023-12-09 15:38:28,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-09 15:38:28,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2023-12-09 15:38:28,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 2014 transitions. [2023-12-09 15:38:28,154 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5225739491437468 [2023-12-09 15:38:28,154 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 2014 transitions. [2023-12-09 15:38:28,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 2014 transitions. [2023-12-09 15:38:28,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:38:28,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 2014 transitions. [2023-12-09 15:38:28,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 49.1219512195122) internal successors, (2014), 41 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:28,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 94.0) internal successors, (3948), 42 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:28,157 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 94.0) internal successors, (3948), 42 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:28,158 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1491 predicate places. [2023-12-09 15:38:28,158 INFO L500 AbstractCegarLoop]: Abstraction has has 1579 places, 2255 transitions, 174910 flow [2023-12-09 15:38:28,159 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:28,159 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:38:28,159 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:38:28,159 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-09 15:38:28,159 INFO L425 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:38:28,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:38:28,160 INFO L85 PathProgramCache]: Analyzing trace with hash 141316475, now seen corresponding path program 39 times [2023-12-09 15:38:28,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:38:28,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001417938] [2023-12-09 15:38:28,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:38:28,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:38:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:38:28,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:38:28,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:38:28,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001417938] [2023-12-09 15:38:28,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001417938] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:38:28,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:38:28,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:38:28,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971853721] [2023-12-09 15:38:28,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:38:28,472 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:38:28,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:38:28,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:38:28,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:38:28,473 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:38:28,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1579 places, 2255 transitions, 174910 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:28,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:38:28,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:38:28,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:38:36,053 INFO L124 PetriNetUnfolderBase]: 972/4679 cut-off events. [2023-12-09 15:38:36,053 INFO L125 PetriNetUnfolderBase]: For 409869/417769 co-relation queries the response was YES. [2023-12-09 15:38:36,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134093 conditions, 4679 events. 972/4679 cut-off events. For 409869/417769 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 54723 event pairs, 46 based on Foata normal form. 44/4720 useless extension candidates. Maximal degree in co-relation 106121. Up to 3109 conditions per place. [2023-12-09 15:38:36,113 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 200 selfloop transitions, 85 changer transitions 2202/2522 dead transitions. [2023-12-09 15:38:36,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1614 places, 2522 transitions, 200959 flow [2023-12-09 15:38:36,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-09 15:38:36,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-12-09 15:38:36,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 1780 transitions. [2023-12-09 15:38:36,114 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5260047281323877 [2023-12-09 15:38:36,114 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 1780 transitions. [2023-12-09 15:38:36,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 1780 transitions. [2023-12-09 15:38:36,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:38:36,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 1780 transitions. [2023-12-09 15:38:36,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 49.44444444444444) internal successors, (1780), 36 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:36,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 94.0) internal successors, (3478), 37 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:36,117 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 94.0) internal successors, (3478), 37 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:36,118 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1526 predicate places. [2023-12-09 15:38:36,118 INFO L500 AbstractCegarLoop]: Abstraction has has 1614 places, 2522 transitions, 200959 flow [2023-12-09 15:38:36,118 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:36,118 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:38:36,118 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:38:36,118 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-09 15:38:36,118 INFO L425 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:38:36,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:38:36,119 INFO L85 PathProgramCache]: Analyzing trace with hash -680335779, now seen corresponding path program 40 times [2023-12-09 15:38:36,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:38:36,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234311855] [2023-12-09 15:38:36,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:38:36,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:38:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:38:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:38:36,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:38:36,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234311855] [2023-12-09 15:38:36,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234311855] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:38:36,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:38:36,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:38:36,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99537176] [2023-12-09 15:38:36,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:38:36,641 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:38:36,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:38:36,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:38:36,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:38:36,642 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:38:36,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1614 places, 2522 transitions, 200959 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:36,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:38:36,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:38:36,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:38:45,248 INFO L124 PetriNetUnfolderBase]: 1100/5270 cut-off events. [2023-12-09 15:38:45,248 INFO L125 PetriNetUnfolderBase]: For 479611/488204 co-relation queries the response was YES. [2023-12-09 15:38:45,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155042 conditions, 5270 events. 1100/5270 cut-off events. For 479611/488204 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 63384 event pairs, 39 based on Foata normal form. 44/5311 useless extension candidates. Maximal degree in co-relation 127149. Up to 3522 conditions per place. [2023-12-09 15:38:45,299 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 205 selfloop transitions, 95 changer transitions 2512/2847 dead transitions. [2023-12-09 15:38:45,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1646 places, 2847 transitions, 232868 flow [2023-12-09 15:38:45,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-09 15:38:45,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2023-12-09 15:38:45,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 1635 transitions. [2023-12-09 15:38:45,301 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5270793036750484 [2023-12-09 15:38:45,301 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 1635 transitions. [2023-12-09 15:38:45,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 1635 transitions. [2023-12-09 15:38:45,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:38:45,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 1635 transitions. [2023-12-09 15:38:45,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 49.54545454545455) internal successors, (1635), 33 states have internal predecessors, (1635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:45,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 94.0) internal successors, (3196), 34 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:45,304 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 94.0) internal successors, (3196), 34 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:45,304 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1558 predicate places. [2023-12-09 15:38:45,304 INFO L500 AbstractCegarLoop]: Abstraction has has 1646 places, 2847 transitions, 232868 flow [2023-12-09 15:38:45,304 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:45,304 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:38:45,304 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:38:45,304 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-09 15:38:45,305 INFO L425 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:38:45,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:38:45,305 INFO L85 PathProgramCache]: Analyzing trace with hash -550298113, now seen corresponding path program 41 times [2023-12-09 15:38:45,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:38:45,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570780527] [2023-12-09 15:38:45,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:38:45,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:38:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:38:45,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:38:45,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:38:45,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570780527] [2023-12-09 15:38:45,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570780527] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:38:45,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:38:45,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:38:45,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145613668] [2023-12-09 15:38:45,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:38:45,626 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:38:45,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:38:45,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:38:45,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:38:45,627 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:38:45,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1646 places, 2847 transitions, 232868 flow. Second operand has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:45,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:38:45,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:38:45,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:38:58,539 INFO L124 PetriNetUnfolderBase]: 1138/5418 cut-off events. [2023-12-09 15:38:58,539 INFO L125 PetriNetUnfolderBase]: For 522003/531544 co-relation queries the response was YES. [2023-12-09 15:38:58,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163613 conditions, 5418 events. 1138/5418 cut-off events. For 522003/531544 co-relation queries the response was YES. Maximal size of possible extension queue 660. Compared 65589 event pairs, 29 based on Foata normal form. 80/5495 useless extension candidates. Maximal degree in co-relation 132559. Up to 3634 conditions per place. [2023-12-09 15:38:58,595 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 206 selfloop transitions, 100 changer transitions 2588/2929 dead transitions. [2023-12-09 15:38:58,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1687 places, 2929 transitions, 245449 flow [2023-12-09 15:38:58,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-09 15:38:58,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2023-12-09 15:38:58,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 2062 transitions. [2023-12-09 15:38:58,599 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.522289766970618 [2023-12-09 15:38:58,599 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 2062 transitions. [2023-12-09 15:38:58,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 2062 transitions. [2023-12-09 15:38:58,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:38:58,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 2062 transitions. [2023-12-09 15:38:58,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 49.095238095238095) internal successors, (2062), 42 states have internal predecessors, (2062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:58,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 94.0) internal successors, (4042), 43 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:58,603 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 94.0) internal successors, (4042), 43 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:58,603 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1599 predicate places. [2023-12-09 15:38:58,603 INFO L500 AbstractCegarLoop]: Abstraction has has 1687 places, 2929 transitions, 245449 flow [2023-12-09 15:38:58,603 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:58,603 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:38:58,603 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:38:58,603 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-09 15:38:58,603 INFO L425 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:38:58,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:38:58,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2114558503, now seen corresponding path program 42 times [2023-12-09 15:38:58,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:38:58,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147945027] [2023-12-09 15:38:58,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:38:58,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:38:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:38:59,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:38:59,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:38:59,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147945027] [2023-12-09 15:38:59,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147945027] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:38:59,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:38:59,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-09 15:38:59,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587764924] [2023-12-09 15:38:59,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:38:59,043 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-09 15:38:59,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:38:59,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-09 15:38:59,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2023-12-09 15:38:59,044 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:38:59,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1687 places, 2929 transitions, 245449 flow. Second operand has 22 states, 22 states have (on average 47.0) internal successors, (1034), 22 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:59,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:38:59,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:38:59,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:39:10,491 INFO L124 PetriNetUnfolderBase]: 1171/5524 cut-off events. [2023-12-09 15:39:10,491 INFO L125 PetriNetUnfolderBase]: For 544195/553801 co-relation queries the response was YES. [2023-12-09 15:39:10,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171054 conditions, 5524 events. 1171/5524 cut-off events. For 544195/553801 co-relation queries the response was YES. Maximal size of possible extension queue 670. Compared 66999 event pairs, 30 based on Foata normal form. 28/5549 useless extension candidates. Maximal degree in co-relation 141162. Up to 3716 conditions per place. [2023-12-09 15:39:10,547 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 217 selfloop transitions, 134 changer transitions 2665/3051 dead transitions. [2023-12-09 15:39:10,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1744 places, 3051 transitions, 261750 flow [2023-12-09 15:39:10,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-12-09 15:39:10,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2023-12-09 15:39:10,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 2802 transitions. [2023-12-09 15:39:10,549 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5139398385913426 [2023-12-09 15:39:10,549 INFO L72 ComplementDD]: Start complementDD. Operand 58 states and 2802 transitions. [2023-12-09 15:39:10,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 2802 transitions. [2023-12-09 15:39:10,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:39:10,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 58 states and 2802 transitions. [2023-12-09 15:39:10,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 59 states, 58 states have (on average 48.310344827586206) internal successors, (2802), 58 states have internal predecessors, (2802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:10,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 59 states, 59 states have (on average 94.0) internal successors, (5546), 59 states have internal predecessors, (5546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:10,554 INFO L81 ComplementDD]: Finished complementDD. Result has 59 states, 59 states have (on average 94.0) internal successors, (5546), 59 states have internal predecessors, (5546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:10,554 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1656 predicate places. [2023-12-09 15:39:10,554 INFO L500 AbstractCegarLoop]: Abstraction has has 1744 places, 3051 transitions, 261750 flow [2023-12-09 15:39:10,555 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 47.0) internal successors, (1034), 22 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:10,555 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:39:10,555 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:39:10,555 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-09 15:39:10,555 INFO L425 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:39:10,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:39:10,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1385451759, now seen corresponding path program 43 times [2023-12-09 15:39:10,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:39:10,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413920196] [2023-12-09 15:39:10,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:39:10,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:39:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:39:10,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:39:10,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:39:10,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413920196] [2023-12-09 15:39:10,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413920196] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:39:10,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:39:10,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:39:10,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904015442] [2023-12-09 15:39:10,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:39:10,856 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:39:10,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:39:10,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:39:10,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:39:10,857 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:39:10,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1744 places, 3051 transitions, 261750 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:10,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:39:10,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:39:10,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:39:23,009 INFO L124 PetriNetUnfolderBase]: 1191/5594 cut-off events. [2023-12-09 15:39:23,010 INFO L125 PetriNetUnfolderBase]: For 577967/588273 co-relation queries the response was YES. [2023-12-09 15:39:23,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177595 conditions, 5594 events. 1191/5594 cut-off events. For 577967/588273 co-relation queries the response was YES. Maximal size of possible extension queue 671. Compared 67870 event pairs, 44 based on Foata normal form. 31/5621 useless extension candidates. Maximal degree in co-relation 146791. Up to 3774 conditions per place. [2023-12-09 15:39:23,064 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 257 selfloop transitions, 98 changer transitions 2710/3100 dead transitions. [2023-12-09 15:39:23,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1785 places, 3100 transitions, 272130 flow [2023-12-09 15:39:23,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-09 15:39:23,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2023-12-09 15:39:23,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 2058 transitions. [2023-12-09 15:39:23,066 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5212765957446809 [2023-12-09 15:39:23,066 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 2058 transitions. [2023-12-09 15:39:23,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 2058 transitions. [2023-12-09 15:39:23,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:39:23,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 2058 transitions. [2023-12-09 15:39:23,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 49.0) internal successors, (2058), 42 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:23,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 94.0) internal successors, (4042), 43 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:23,069 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 94.0) internal successors, (4042), 43 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:23,070 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1697 predicate places. [2023-12-09 15:39:23,070 INFO L500 AbstractCegarLoop]: Abstraction has has 1785 places, 3100 transitions, 272130 flow [2023-12-09 15:39:23,070 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:23,070 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:39:23,070 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:39:23,070 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-09 15:39:23,070 INFO L425 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:39:23,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:39:23,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1869853937, now seen corresponding path program 44 times [2023-12-09 15:39:23,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:39:23,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262539673] [2023-12-09 15:39:23,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:39:23,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:39:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:39:23,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:39:23,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:39:23,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262539673] [2023-12-09 15:39:23,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262539673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:39:23,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:39:23,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:39:23,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802655056] [2023-12-09 15:39:23,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:39:23,379 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:39:23,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:39:23,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:39:23,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:39:23,381 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:39:23,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1785 places, 3100 transitions, 272130 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:23,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:39:23,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:39:23,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:39:36,604 INFO L124 PetriNetUnfolderBase]: 1214/5738 cut-off events. [2023-12-09 15:39:36,604 INFO L125 PetriNetUnfolderBase]: For 627501/638449 co-relation queries the response was YES. [2023-12-09 15:39:36,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184502 conditions, 5738 events. 1214/5738 cut-off events. For 627501/638449 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 70131 event pairs, 48 based on Foata normal form. 27/5760 useless extension candidates. Maximal degree in co-relation 152778. Up to 3836 conditions per place. [2023-12-09 15:39:36,663 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 274 selfloop transitions, 98 changer transitions 2740/3147 dead transitions. [2023-12-09 15:39:36,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1825 places, 3147 transitions, 282514 flow [2023-12-09 15:39:36,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-09 15:39:36,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2023-12-09 15:39:36,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 2012 transitions. [2023-12-09 15:39:36,665 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5220550077841204 [2023-12-09 15:39:36,665 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 2012 transitions. [2023-12-09 15:39:36,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 2012 transitions. [2023-12-09 15:39:36,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:39:36,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 2012 transitions. [2023-12-09 15:39:36,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 49.073170731707314) internal successors, (2012), 41 states have internal predecessors, (2012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:36,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 94.0) internal successors, (3948), 42 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:36,669 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 94.0) internal successors, (3948), 42 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:36,669 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1737 predicate places. [2023-12-09 15:39:36,669 INFO L500 AbstractCegarLoop]: Abstraction has has 1825 places, 3147 transitions, 282514 flow [2023-12-09 15:39:36,670 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:36,670 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:39:36,670 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:39:36,670 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-09 15:39:36,670 INFO L425 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:39:36,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:39:36,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1512069281, now seen corresponding path program 45 times [2023-12-09 15:39:36,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:39:36,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894835839] [2023-12-09 15:39:36,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:39:36,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:39:36,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:39:37,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:39:37,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:39:37,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894835839] [2023-12-09 15:39:37,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894835839] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:39:37,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:39:37,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:39:37,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106848276] [2023-12-09 15:39:37,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:39:37,026 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:39:37,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:39:37,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:39:37,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:39:37,028 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:39:37,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1825 places, 3147 transitions, 282514 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:37,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:39:37,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:39:37,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:39:50,708 INFO L124 PetriNetUnfolderBase]: 1233/5776 cut-off events. [2023-12-09 15:39:50,708 INFO L125 PetriNetUnfolderBase]: For 654720/667124 co-relation queries the response was YES. [2023-12-09 15:39:50,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191069 conditions, 5776 events. 1233/5776 cut-off events. For 654720/667124 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 70631 event pairs, 34 based on Foata normal form. 31/5802 useless extension candidates. Maximal degree in co-relation 158415. Up to 3890 conditions per place. [2023-12-09 15:39:50,771 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 290 selfloop transitions, 94 changer transitions 2773/3192 dead transitions. [2023-12-09 15:39:50,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1864 places, 3192 transitions, 292902 flow [2023-12-09 15:39:50,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-09 15:39:50,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2023-12-09 15:39:50,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 1960 transitions. [2023-12-09 15:39:50,773 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5212765957446809 [2023-12-09 15:39:50,773 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 1960 transitions. [2023-12-09 15:39:50,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 1960 transitions. [2023-12-09 15:39:50,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:39:50,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 1960 transitions. [2023-12-09 15:39:50,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 49.0) internal successors, (1960), 40 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:50,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 94.0) internal successors, (3854), 41 states have internal predecessors, (3854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:50,777 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 94.0) internal successors, (3854), 41 states have internal predecessors, (3854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:50,777 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1776 predicate places. [2023-12-09 15:39:50,777 INFO L500 AbstractCegarLoop]: Abstraction has has 1864 places, 3192 transitions, 292902 flow [2023-12-09 15:39:50,777 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:50,777 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:39:50,777 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:39:50,777 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-09 15:39:50,778 INFO L425 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:39:50,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:39:50,778 INFO L85 PathProgramCache]: Analyzing trace with hash -615012699, now seen corresponding path program 46 times [2023-12-09 15:39:50,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:39:50,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399626969] [2023-12-09 15:39:50,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:39:50,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:39:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:39:51,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:39:51,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:39:51,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399626969] [2023-12-09 15:39:51,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399626969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:39:51,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:39:51,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:39:51,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879514295] [2023-12-09 15:39:51,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:39:51,191 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:39:51,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:39:51,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:39:51,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:39:51,192 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:39:51,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1864 places, 3192 transitions, 292902 flow. Second operand has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:39:51,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:39:51,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:39:51,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:40:08,128 INFO L124 PetriNetUnfolderBase]: 1239/5787 cut-off events. [2023-12-09 15:40:08,128 INFO L125 PetriNetUnfolderBase]: For 685522/696929 co-relation queries the response was YES. [2023-12-09 15:40:08,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196476 conditions, 5787 events. 1239/5787 cut-off events. For 685522/696929 co-relation queries the response was YES. Maximal size of possible extension queue 711. Compared 70725 event pairs, 38 based on Foata normal form. 33/5816 useless extension candidates. Maximal degree in co-relation 153078. Up to 3917 conditions per place. [2023-12-09 15:40:08,193 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 259 selfloop transitions, 108 changer transitions 2814/3216 dead transitions. [2023-12-09 15:40:08,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1908 places, 3216 transitions, 301505 flow [2023-12-09 15:40:08,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-09 15:40:08,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-12-09 15:40:08,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 2197 transitions. [2023-12-09 15:40:08,195 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5193853427895981 [2023-12-09 15:40:08,195 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 2197 transitions. [2023-12-09 15:40:08,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 2197 transitions. [2023-12-09 15:40:08,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:40:08,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 2197 transitions. [2023-12-09 15:40:08,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 48.82222222222222) internal successors, (2197), 45 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:08,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 94.0) internal successors, (4324), 46 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) [2023-12-09 15:40:08,199 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 94.0) internal successors, (4324), 46 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) [2023-12-09 15:40:08,199 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1820 predicate places. [2023-12-09 15:40:08,199 INFO L500 AbstractCegarLoop]: Abstraction has has 1908 places, 3216 transitions, 301505 flow [2023-12-09 15:40:08,199 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.2) internal successors, (944), 20 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:08,199 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:40:08,200 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:40:08,200 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-09 15:40:08,200 INFO L425 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:40:08,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:40:08,200 INFO L85 PathProgramCache]: Analyzing trace with hash 450754483, now seen corresponding path program 47 times [2023-12-09 15:40:08,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:40:08,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386426422] [2023-12-09 15:40:08,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:40:08,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:40:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:40:08,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:40:08,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:40:08,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386426422] [2023-12-09 15:40:08,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386426422] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:40:08,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:40:08,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:40:08,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057449643] [2023-12-09 15:40:08,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:40:08,520 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:40:08,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:40:08,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:40:08,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:40:08,521 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:40:08,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1908 places, 3216 transitions, 301505 flow. Second operand has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:08,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:40:08,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:40:08,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:40:24,658 INFO L124 PetriNetUnfolderBase]: 1273/5973 cut-off events. [2023-12-09 15:40:24,658 INFO L125 PetriNetUnfolderBase]: For 741797/753666 co-relation queries the response was YES. [2023-12-09 15:40:24,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204698 conditions, 5973 events. 1273/5973 cut-off events. For 741797/753666 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 73326 event pairs, 54 based on Foata normal form. 26/5994 useless extension candidates. Maximal degree in co-relation 166596. Up to 3999 conditions per place. [2023-12-09 15:40:24,730 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 282 selfloop transitions, 124 changer transitions 2837/3278 dead transitions. [2023-12-09 15:40:24,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1948 places, 3278 transitions, 313837 flow [2023-12-09 15:40:24,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-09 15:40:24,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2023-12-09 15:40:24,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 2017 transitions. [2023-12-09 15:40:24,732 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5233523611831863 [2023-12-09 15:40:24,732 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 2017 transitions. [2023-12-09 15:40:24,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 2017 transitions. [2023-12-09 15:40:24,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:40:24,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 2017 transitions. [2023-12-09 15:40:24,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 49.19512195121951) internal successors, (2017), 41 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:24,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 94.0) internal successors, (3948), 42 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:24,736 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 94.0) internal successors, (3948), 42 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:24,736 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1860 predicate places. [2023-12-09 15:40:24,736 INFO L500 AbstractCegarLoop]: Abstraction has has 1948 places, 3278 transitions, 313837 flow [2023-12-09 15:40:24,736 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.31578947368421) internal successors, (899), 19 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:24,736 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:40:24,736 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:40:24,737 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-09 15:40:24,737 INFO L425 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:40:24,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:40:24,737 INFO L85 PathProgramCache]: Analyzing trace with hash -47287229, now seen corresponding path program 48 times [2023-12-09 15:40:24,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:40:24,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140405813] [2023-12-09 15:40:24,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:40:24,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:40:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:40:25,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:40:25,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:40:25,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140405813] [2023-12-09 15:40:25,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140405813] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:40:25,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:40:25,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-12-09 15:40:25,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434624153] [2023-12-09 15:40:25,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:40:25,090 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-09 15:40:25,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:40:25,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-09 15:40:25,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2023-12-09 15:40:25,091 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:40:25,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1948 places, 3278 transitions, 313837 flow. Second operand has 21 states, 21 states have (on average 47.095238095238095) internal successors, (989), 21 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:25,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:40:25,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:40:25,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:40:45,828 INFO L124 PetriNetUnfolderBase]: 1342/6191 cut-off events. [2023-12-09 15:40:45,828 INFO L125 PetriNetUnfolderBase]: For 795409/808551 co-relation queries the response was YES. [2023-12-09 15:40:45,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217206 conditions, 6191 events. 1342/6191 cut-off events. For 795409/808551 co-relation queries the response was YES. Maximal size of possible extension queue 740. Compared 76029 event pairs, 39 based on Foata normal form. 31/6217 useless extension candidates. Maximal degree in co-relation 177821. Up to 4165 conditions per place. [2023-12-09 15:40:45,920 INFO L140 encePairwiseOnDemand]: 62/94 looper letters, 336 selfloop transitions, 163 changer transitions 2885/3419 dead transitions. [2023-12-09 15:40:45,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2001 places, 3419 transitions, 334177 flow [2023-12-09 15:40:45,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-12-09 15:40:45,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2023-12-09 15:40:45,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 2619 transitions. [2023-12-09 15:40:45,923 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5159574468085106 [2023-12-09 15:40:45,923 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 2619 transitions. [2023-12-09 15:40:45,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 2619 transitions. [2023-12-09 15:40:45,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:40:45,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 2619 transitions. [2023-12-09 15:40:45,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 48.5) internal successors, (2619), 54 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:45,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 94.0) internal successors, (5170), 55 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:45,927 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 94.0) internal successors, (5170), 55 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:45,928 INFO L308 CegarLoopForPetriNet]: 88 programPoint places, 1913 predicate places. [2023-12-09 15:40:45,928 INFO L500 AbstractCegarLoop]: Abstraction has has 2001 places, 3419 transitions, 334177 flow [2023-12-09 15:40:45,928 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 47.095238095238095) internal successors, (989), 21 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:45,928 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:40:45,928 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:40:45,928 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-09 15:40:45,928 INFO L425 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:40:45,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:40:45,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1240688845, now seen corresponding path program 49 times [2023-12-09 15:40:45,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:40:45,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562838167] [2023-12-09 15:40:45,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:40:45,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:40:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:40:46,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:40:46,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:40:46,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562838167] [2023-12-09 15:40:46,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562838167] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:40:46,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:40:46,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-09 15:40:46,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818565121] [2023-12-09 15:40:46,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:40:46,237 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:40:46,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:40:46,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:40:46,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:40:46,238 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 94 [2023-12-09 15:40:46,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2001 places, 3419 transitions, 334177 flow. Second operand has 18 states, 18 states have (on average 47.44444444444444) internal successors, (854), 18 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:46,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:40:46,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 94 [2023-12-09 15:40:46,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-12-09 15:40:48,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-09 15:40:48,277 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-09 15:40:48,277 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-09 15:40:48,277 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (18states, 45/94 universal loopers) in iteration 49,while PetriNetUnfolder was constructing finite prefix that currently has 22770 conditions, 494 events (179/493 cut-off events. For 22384/22602 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 2886 event pairs, 6 based on Foata normal form. 22/597 useless extension candidates. Maximal degree in co-relation 22099. Up to 405 conditions per place.). [2023-12-09 15:40:48,278 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-12-09 15:40:48,278 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-12-09 15:40:48,279 INFO L457 BasicCegarLoop]: Path program histogram: [49] [2023-12-09 15:40:48,281 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:40:48,281 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:40:48,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:40:48 BasicIcfg [2023-12-09 15:40:48,283 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:40:48,284 INFO L158 Benchmark]: Toolchain (without parser) took 258391.53ms. Allocated memory was 175.1MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 130.4MB in the beginning and 833.9MB in the end (delta: -703.5MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-09 15:40:48,284 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 175.1MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:40:48,284 INFO L158 Benchmark]: CACSL2BoogieTranslator took 183.14ms. Allocated memory is still 175.1MB. Free memory was 130.1MB in the beginning and 119.2MB in the end (delta: 10.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-09 15:40:48,284 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.76ms. Allocated memory is still 175.1MB. Free memory was 119.2MB in the beginning and 117.5MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:40:48,284 INFO L158 Benchmark]: Boogie Preprocessor took 19.13ms. Allocated memory is still 175.1MB. Free memory was 117.5MB in the beginning and 116.5MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:40:48,284 INFO L158 Benchmark]: RCFGBuilder took 262.53ms. Allocated memory is still 175.1MB. Free memory was 116.5MB in the beginning and 103.5MB in the end (delta: 12.9MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-09 15:40:48,285 INFO L158 Benchmark]: TraceAbstraction took 257896.32ms. Allocated memory was 175.1MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 102.8MB in the beginning and 833.9MB in the end (delta: -731.1MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-09 15:40:48,285 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 175.1MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 183.14ms. Allocated memory is still 175.1MB. Free memory was 130.1MB in the beginning and 119.2MB in the end (delta: 10.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.76ms. Allocated memory is still 175.1MB. Free memory was 119.2MB in the beginning and 117.5MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.13ms. Allocated memory is still 175.1MB. Free memory was 117.5MB in the beginning and 116.5MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 262.53ms. Allocated memory is still 175.1MB. Free memory was 116.5MB in the beginning and 103.5MB in the end (delta: 12.9MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 257896.32ms. Allocated memory was 175.1MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 102.8MB in the beginning and 833.9MB in the end (delta: -731.1MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (18states, 45/94 universal loopers) in iteration 49,while PetriNetUnfolder was constructing finite prefix that currently has 22770 conditions, 494 events (179/493 cut-off events. For 22384/22602 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 2886 event pairs, 6 based on Foata normal form. 22/597 useless extension candidates. Maximal degree in co-relation 22099. Up to 405 conditions per place.). - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (18states, 45/94 universal loopers) in iteration 49,while PetriNetUnfolder was constructing finite prefix that currently has 22770 conditions, 494 events (179/493 cut-off events. For 22384/22602 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 2886 event pairs, 6 based on Foata normal form. 22/597 useless extension candidates. Maximal degree in co-relation 22099. Up to 405 conditions per place.). - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (18states, 45/94 universal loopers) in iteration 49,while PetriNetUnfolder was constructing finite prefix that currently has 22770 conditions, 494 events (179/493 cut-off events. For 22384/22602 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 2886 event pairs, 6 based on Foata normal form. 22/597 useless extension candidates. Maximal degree in co-relation 22099. Up to 405 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 127 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 257.8s, OverallIterations: 49, TraceHistogramMax: 1, PathProgramHistogramMax: 49, EmptinessCheckTime: 0.0s, AutomataDifference: 236.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5103 SdHoareTripleChecker+Valid, 26.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5103 mSDsluCounter, 32545 SdHoareTripleChecker+Invalid, 22.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29642 mSDsCounter, 442 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58292 IncrementalHoareTripleChecker+Invalid, 58734 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 442 mSolverCounterUnsat, 2903 mSDtfsCounter, 58292 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2587 GetRequests, 248 SyntacticMatches, 7 SemanticMatches, 2332 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25153 ImplicationChecksByTransitivity, 29.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=334177occurred in iteration=48, InterpolantAutomatonStates: 1961, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 19.7s InterpolantComputationTime, 3871 NumberOfCodeBlocks, 3871 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 3822 ConstructedInterpolants, 0 QuantifiedInterpolants, 42539 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 49 InterpolantComputations, 49 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 [2023-12-09 15:40:48,289 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown