/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/chl-exp-term-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:09:27,045 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:09:27,108 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 15:09:27,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:09:27,128 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:09:27,129 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:09:27,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:09:27,129 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:09:27,129 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:09:27,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:09:27,132 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:09:27,132 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:09:27,133 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:09:27,133 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:09:27,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:09:27,134 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:09:27,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:09:27,134 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:09:27,134 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:09:27,134 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:09:27,134 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:09:27,135 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:09:27,135 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:09:27,135 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:09:27,135 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:09:27,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:09:27,136 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:09:27,136 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:09:27,136 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:09:27,136 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:09:27,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:09:27,137 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:09:27,137 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:09:27,137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:09:27,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:09:27,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:09:27,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:09:27,327 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:09:27,329 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:09:27,329 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2023-12-09 15:09:28,374 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:09:28,508 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:09:28,508 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2023-12-09 15:09:28,513 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22b114acc/837d4afc0e624430a8959a706540a38e/FLAG9b5f4ba32 [2023-12-09 15:09:28,523 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22b114acc/837d4afc0e624430a8959a706540a38e [2023-12-09 15:09:28,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:09:28,526 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:09:28,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:09:28,527 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:09:28,531 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:09:28,532 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:09:28" (1/1) ... [2023-12-09 15:09:28,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cbdc941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:28, skipping insertion in model container [2023-12-09 15:09:28,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:09:28" (1/1) ... [2023-12-09 15:09:28,553 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:09:28,670 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/chl-exp-term-symm.wvr.c[2654,2667] [2023-12-09 15:09:28,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:09:28,686 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:09:28,709 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/chl-exp-term-symm.wvr.c[2654,2667] [2023-12-09 15:09:28,711 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:09:28,721 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:09:28,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:28 WrapperNode [2023-12-09 15:09:28,722 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:09:28,723 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:09:28,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:09:28,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:09:28,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:28" (1/1) ... [2023-12-09 15:09:28,733 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:28" (1/1) ... [2023-12-09 15:09:28,749 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 133 [2023-12-09 15:09:28,749 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:09:28,750 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:09:28,750 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:09:28,750 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:09:28,756 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:28" (1/1) ... [2023-12-09 15:09:28,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:28" (1/1) ... [2023-12-09 15:09:28,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:28" (1/1) ... [2023-12-09 15:09:28,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:28" (1/1) ... [2023-12-09 15:09:28,762 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:28" (1/1) ... [2023-12-09 15:09:28,764 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:28" (1/1) ... [2023-12-09 15:09:28,765 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:28" (1/1) ... [2023-12-09 15:09:28,766 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:28" (1/1) ... [2023-12-09 15:09:28,768 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:09:28,769 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:09:28,769 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:09:28,769 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:09:28,770 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:28" (1/1) ... [2023-12-09 15:09:28,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:09:28,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:09:28,794 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 15:09:28,813 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 15:09:28,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:09:28,820 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:09:28,820 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:09:28,820 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:09:28,820 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:09:28,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:09:28,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:09:28,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:09:28,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:09:28,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:09:28,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:09:28,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:09:28,822 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 15:09:28,917 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:09:28,918 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:09:29,176 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:09:29,184 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:09:29,185 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 15:09:29,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:09:29 BoogieIcfgContainer [2023-12-09 15:09:29,186 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:09:29,192 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:09:29,192 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:09:29,194 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:09:29,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:09:28" (1/3) ... [2023-12-09 15:09:29,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9da647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:09:29, skipping insertion in model container [2023-12-09 15:09:29,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:28" (2/3) ... [2023-12-09 15:09:29,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9da647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:09:29, skipping insertion in model container [2023-12-09 15:09:29,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:09:29" (3/3) ... [2023-12-09 15:09:29,195 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2023-12-09 15:09:29,206 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:09:29,206 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:09:29,206 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:09:29,272 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-09 15:09:29,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 176 transitions, 366 flow [2023-12-09 15:09:29,356 INFO L124 PetriNetUnfolderBase]: 13/174 cut-off events. [2023-12-09 15:09:29,357 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:09:29,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 174 events. 13/174 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 283 event pairs, 0 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2023-12-09 15:09:29,361 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 176 transitions, 366 flow [2023-12-09 15:09:29,364 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 165 transitions, 342 flow [2023-12-09 15:09:29,370 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:09:29,374 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;@7a7651f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:09:29,374 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-09 15:09:29,398 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:09:29,398 INFO L124 PetriNetUnfolderBase]: 13/164 cut-off events. [2023-12-09 15:09:29,398 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:09:29,398 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:29,399 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:29,399 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 15:09:29,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:29,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1513745645, now seen corresponding path program 1 times [2023-12-09 15:09:29,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:29,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142109945] [2023-12-09 15:09:29,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:29,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:29,944 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 15:09:29,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:29,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142109945] [2023-12-09 15:09:29,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142109945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:29,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:29,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:09:29,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007930970] [2023-12-09 15:09:29,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:29,954 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:09:29,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:29,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:09:29,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:09:29,988 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 176 [2023-12-09 15:09:29,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 165 transitions, 342 flow. Second operand has 8 states, 8 states have (on average 136.75) internal successors, (1094), 8 states have internal predecessors, (1094), 0 states have call successors, (0), 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 15:09:29,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:29,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 176 [2023-12-09 15:09:29,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:30,243 INFO L124 PetriNetUnfolderBase]: 57/412 cut-off events. [2023-12-09 15:09:30,243 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-12-09 15:09:30,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 412 events. 57/412 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1954 event pairs, 12 based on Foata normal form. 24/407 useless extension candidates. Maximal degree in co-relation 375. Up to 51 conditions per place. [2023-12-09 15:09:30,250 INFO L140 encePairwiseOnDemand]: 155/176 looper letters, 60 selfloop transitions, 13 changer transitions 32/228 dead transitions. [2023-12-09 15:09:30,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 228 transitions, 699 flow [2023-12-09 15:09:30,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 15:09:30,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 15:09:30,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1856 transitions. [2023-12-09 15:09:30,265 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8111888111888111 [2023-12-09 15:09:30,265 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1856 transitions. [2023-12-09 15:09:30,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1856 transitions. [2023-12-09 15:09:30,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:30,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1856 transitions. [2023-12-09 15:09:30,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 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 15:09:30,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 176.0) internal successors, (2464), 14 states have internal predecessors, (2464), 0 states have call successors, (0), 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 15:09:30,282 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 176.0) internal successors, (2464), 14 states have internal predecessors, (2464), 0 states have call successors, (0), 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 15:09:30,284 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 12 predicate places. [2023-12-09 15:09:30,284 INFO L500 AbstractCegarLoop]: Abstraction has has 171 places, 228 transitions, 699 flow [2023-12-09 15:09:30,285 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 136.75) internal successors, (1094), 8 states have internal predecessors, (1094), 0 states have call successors, (0), 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 15:09:30,285 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:30,286 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:30,286 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:09:30,286 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 15:09:30,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:30,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1120644951, now seen corresponding path program 1 times [2023-12-09 15:09:30,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:30,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369601682] [2023-12-09 15:09:30,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:30,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:30,479 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 15:09:30,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:30,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369601682] [2023-12-09 15:09:30,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369601682] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:30,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:30,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-09 15:09:30,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308964039] [2023-12-09 15:09:30,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:30,483 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-09 15:09:30,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:30,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-09 15:09:30,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-09 15:09:30,485 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 176 [2023-12-09 15:09:30,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 228 transitions, 699 flow. Second operand has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 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 15:09:30,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:30,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 176 [2023-12-09 15:09:30,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:30,630 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([415] L44-17-->L44-18: Formula: (= |v_thread1Thread1of1ForFork0_#t~ite3#1_3| |v_thread1Thread1of1ForFork0_#t~ite4#1_7|) InVars {thread1Thread1of1ForFork0_#t~ite3#1=|v_thread1Thread1of1ForFork0_#t~ite3#1_3|} OutVars{thread1Thread1of1ForFork0_#t~ite3#1=|v_thread1Thread1of1ForFork0_#t~ite3#1_3|, thread1Thread1of1ForFork0_#t~ite4#1=|v_thread1Thread1of1ForFork0_#t~ite4#1_7|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~ite4#1][133], [47#L44-18true, thread1Thread1of1ForFork0InUse, 103#L50-20true, 108#L65-4true, thread2Thread1of1ForFork1InUse, 176#(= ~result_4~0 0), 202#(= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))]) [2023-12-09 15:09:30,630 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2023-12-09 15:09:30,630 INFO L297 olderBase$Statistics]: existing Event has 78 ancestors and is cut-off event [2023-12-09 15:09:30,630 INFO L297 olderBase$Statistics]: existing Event has 54 ancestors and is cut-off event [2023-12-09 15:09:30,630 INFO L297 olderBase$Statistics]: existing Event has 56 ancestors and is cut-off event [2023-12-09 15:09:30,631 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([415] L44-17-->L44-18: Formula: (= |v_thread1Thread1of1ForFork0_#t~ite3#1_3| |v_thread1Thread1of1ForFork0_#t~ite4#1_7|) InVars {thread1Thread1of1ForFork0_#t~ite3#1=|v_thread1Thread1of1ForFork0_#t~ite3#1_3|} OutVars{thread1Thread1of1ForFork0_#t~ite3#1=|v_thread1Thread1of1ForFork0_#t~ite3#1_3|, thread1Thread1of1ForFork0_#t~ite4#1=|v_thread1Thread1of1ForFork0_#t~ite4#1_7|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~ite4#1][133], [27#L50-19true, 47#L44-18true, thread1Thread1of1ForFork0InUse, 108#L65-4true, thread2Thread1of1ForFork1InUse, 176#(= ~result_4~0 0), 202#(= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))]) [2023-12-09 15:09:30,631 INFO L294 olderBase$Statistics]: this new event has 75 ancestors and is cut-off event [2023-12-09 15:09:30,631 INFO L297 olderBase$Statistics]: existing Event has 55 ancestors and is cut-off event [2023-12-09 15:09:30,631 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2023-12-09 15:09:30,632 INFO L297 olderBase$Statistics]: existing Event has 53 ancestors and is cut-off event [2023-12-09 15:09:30,632 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([415] L44-17-->L44-18: Formula: (= |v_thread1Thread1of1ForFork0_#t~ite3#1_3| |v_thread1Thread1of1ForFork0_#t~ite4#1_7|) InVars {thread1Thread1of1ForFork0_#t~ite3#1=|v_thread1Thread1of1ForFork0_#t~ite3#1_3|} OutVars{thread1Thread1of1ForFork0_#t~ite3#1=|v_thread1Thread1of1ForFork0_#t~ite3#1_3|, thread1Thread1of1ForFork0_#t~ite4#1=|v_thread1Thread1of1ForFork0_#t~ite4#1_7|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~ite4#1][50], [47#L44-18true, thread1Thread1of1ForFork0InUse, 13#L50-18true, 108#L65-4true, thread2Thread1of1ForFork1InUse, 202#(= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)), 178#(and (= ~result_5~0 0) (= ~result_4~0 0))]) [2023-12-09 15:09:30,632 INFO L294 olderBase$Statistics]: this new event has 74 ancestors and is cut-off event [2023-12-09 15:09:30,632 INFO L297 olderBase$Statistics]: existing Event has 54 ancestors and is cut-off event [2023-12-09 15:09:30,632 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2023-12-09 15:09:30,632 INFO L297 olderBase$Statistics]: existing Event has 52 ancestors and is cut-off event [2023-12-09 15:09:30,634 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L50-17-->L50-18: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite7#1_3| |v_thread2Thread1of1ForFork1_#t~ite8#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_7|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_3|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~ite8#1][102], [47#L44-18true, thread1Thread1of1ForFork0InUse, 13#L50-18true, 108#L65-4true, thread2Thread1of1ForFork1InUse, 202#(= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)), 178#(and (= ~result_5~0 0) (= ~result_4~0 0))]) [2023-12-09 15:09:30,634 INFO L294 olderBase$Statistics]: this new event has 74 ancestors and is cut-off event [2023-12-09 15:09:30,634 INFO L297 olderBase$Statistics]: existing Event has 52 ancestors and is cut-off event [2023-12-09 15:09:30,634 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2023-12-09 15:09:30,634 INFO L297 olderBase$Statistics]: existing Event has 54 ancestors and is cut-off event [2023-12-09 15:09:30,635 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L50-17-->L50-18: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite7#1_3| |v_thread2Thread1of1ForFork1_#t~ite8#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_7|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_3|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~ite8#1][140], [thread1Thread1of1ForFork0InUse, 13#L50-18true, 108#L65-4true, 149#L44-19true, thread2Thread1of1ForFork1InUse, 173#true, 202#(= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256))]) [2023-12-09 15:09:30,635 INFO L294 olderBase$Statistics]: this new event has 75 ancestors and is cut-off event [2023-12-09 15:09:30,635 INFO L297 olderBase$Statistics]: existing Event has 53 ancestors and is cut-off event [2023-12-09 15:09:30,636 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2023-12-09 15:09:30,636 INFO L297 olderBase$Statistics]: existing Event has 55 ancestors and is cut-off event [2023-12-09 15:09:30,638 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L50-17-->L50-18: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite7#1_3| |v_thread2Thread1of1ForFork1_#t~ite8#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_7|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_3|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~ite8#1][140], [thread1Thread1of1ForFork0InUse, 13#L50-18true, 108#L65-4true, thread2Thread1of1ForFork1InUse, 173#true, 202#(= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)), 10#L44-20true]) [2023-12-09 15:09:30,638 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2023-12-09 15:09:30,638 INFO L297 olderBase$Statistics]: existing Event has 54 ancestors and is cut-off event [2023-12-09 15:09:30,639 INFO L297 olderBase$Statistics]: existing Event has 78 ancestors and is cut-off event [2023-12-09 15:09:30,639 INFO L297 olderBase$Statistics]: existing Event has 56 ancestors and is cut-off event [2023-12-09 15:09:30,675 INFO L124 PetriNetUnfolderBase]: 209/1321 cut-off events. [2023-12-09 15:09:30,675 INFO L125 PetriNetUnfolderBase]: For 390/422 co-relation queries the response was YES. [2023-12-09 15:09:30,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2094 conditions, 1321 events. 209/1321 cut-off events. For 390/422 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 10230 event pairs, 38 based on Foata normal form. 3/1184 useless extension candidates. Maximal degree in co-relation 1381. Up to 188 conditions per place. [2023-12-09 15:09:30,680 INFO L140 encePairwiseOnDemand]: 164/176 looper letters, 41 selfloop transitions, 12 changer transitions 33/257 dead transitions. [2023-12-09 15:09:30,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 257 transitions, 924 flow [2023-12-09 15:09:30,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-09 15:09:30,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-12-09 15:09:30,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 638 transitions. [2023-12-09 15:09:30,682 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.90625 [2023-12-09 15:09:30,682 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 638 transitions. [2023-12-09 15:09:30,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 638 transitions. [2023-12-09 15:09:30,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:30,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 638 transitions. [2023-12-09 15:09:30,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 159.5) internal successors, (638), 4 states have internal predecessors, (638), 0 states have call successors, (0), 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 15:09:30,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 0 states have call successors, (0), 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 15:09:30,686 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 0 states have call successors, (0), 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 15:09:30,687 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 15 predicate places. [2023-12-09 15:09:30,689 INFO L500 AbstractCegarLoop]: Abstraction has has 174 places, 257 transitions, 924 flow [2023-12-09 15:09:30,689 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 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 15:09:30,692 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:30,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:30,692 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:09:30,692 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 15:09:30,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:30,693 INFO L85 PathProgramCache]: Analyzing trace with hash 2085220249, now seen corresponding path program 2 times [2023-12-09 15:09:30,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:30,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973043498] [2023-12-09 15:09:30,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:30,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:30,857 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 15:09:30,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:30,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973043498] [2023-12-09 15:09:30,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973043498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:30,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:30,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-09 15:09:30,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061983905] [2023-12-09 15:09:30,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:30,860 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-09 15:09:30,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:30,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-09 15:09:30,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-09 15:09:30,862 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 176 [2023-12-09 15:09:30,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 257 transitions, 924 flow. Second operand has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 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 15:09:30,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:30,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 176 [2023-12-09 15:09:30,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:30,993 INFO L124 PetriNetUnfolderBase]: 192/1310 cut-off events. [2023-12-09 15:09:30,993 INFO L125 PetriNetUnfolderBase]: For 668/820 co-relation queries the response was YES. [2023-12-09 15:09:30,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2273 conditions, 1310 events. 192/1310 cut-off events. For 668/820 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 10321 event pairs, 34 based on Foata normal form. 9/1193 useless extension candidates. Maximal degree in co-relation 1425. Up to 212 conditions per place. [2023-12-09 15:09:31,000 INFO L140 encePairwiseOnDemand]: 165/176 looper letters, 60 selfloop transitions, 10 changer transitions 34/275 dead transitions. [2023-12-09 15:09:31,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 275 transitions, 1179 flow [2023-12-09 15:09:31,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-09 15:09:31,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-12-09 15:09:31,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 632 transitions. [2023-12-09 15:09:31,001 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8977272727272727 [2023-12-09 15:09:31,001 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 632 transitions. [2023-12-09 15:09:31,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 632 transitions. [2023-12-09 15:09:31,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:31,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 632 transitions. [2023-12-09 15:09:31,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 15:09:31,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 0 states have call successors, (0), 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 15:09:31,004 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 0 states have call successors, (0), 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 15:09:31,005 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 18 predicate places. [2023-12-09 15:09:31,005 INFO L500 AbstractCegarLoop]: Abstraction has has 177 places, 275 transitions, 1179 flow [2023-12-09 15:09:31,006 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 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 15:09:31,006 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:31,006 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:31,006 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:09:31,006 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 15:09:31,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:31,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1607745485, now seen corresponding path program 1 times [2023-12-09 15:09:31,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:31,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021589917] [2023-12-09 15:09:31,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:31,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:31,093 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 15:09:31,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:31,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021589917] [2023-12-09 15:09:31,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021589917] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:31,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:31,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-09 15:09:31,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674496085] [2023-12-09 15:09:31,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:31,098 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-09 15:09:31,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:31,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-09 15:09:31,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-09 15:09:31,100 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 176 [2023-12-09 15:09:31,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 275 transitions, 1179 flow. Second operand has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 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 15:09:31,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:31,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 176 [2023-12-09 15:09:31,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:31,256 INFO L124 PetriNetUnfolderBase]: 209/1514 cut-off events. [2023-12-09 15:09:31,256 INFO L125 PetriNetUnfolderBase]: For 1159/1549 co-relation queries the response was YES. [2023-12-09 15:09:31,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2816 conditions, 1514 events. 209/1514 cut-off events. For 1159/1549 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 11887 event pairs, 48 based on Foata normal form. 26/1402 useless extension candidates. Maximal degree in co-relation 1696. Up to 253 conditions per place. [2023-12-09 15:09:31,262 INFO L140 encePairwiseOnDemand]: 166/176 looper letters, 69 selfloop transitions, 14 changer transitions 36/288 dead transitions. [2023-12-09 15:09:31,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 288 transitions, 1456 flow [2023-12-09 15:09:31,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-09 15:09:31,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-12-09 15:09:31,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 634 transitions. [2023-12-09 15:09:31,263 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.9005681818181818 [2023-12-09 15:09:31,263 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 634 transitions. [2023-12-09 15:09:31,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 634 transitions. [2023-12-09 15:09:31,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:31,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 634 transitions. [2023-12-09 15:09:31,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 158.5) internal successors, (634), 4 states have internal predecessors, (634), 0 states have call successors, (0), 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 15:09:31,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 0 states have call successors, (0), 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 15:09:31,266 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 0 states have call successors, (0), 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 15:09:31,266 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 21 predicate places. [2023-12-09 15:09:31,266 INFO L500 AbstractCegarLoop]: Abstraction has has 180 places, 288 transitions, 1456 flow [2023-12-09 15:09:31,267 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 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 15:09:31,267 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:31,267 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:31,267 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:09:31,267 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 15:09:31,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:31,267 INFO L85 PathProgramCache]: Analyzing trace with hash -776965379, now seen corresponding path program 2 times [2023-12-09 15:09:31,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:31,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412753925] [2023-12-09 15:09:31,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:31,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:31,307 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 15:09:31,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:31,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412753925] [2023-12-09 15:09:31,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412753925] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:31,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:31,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-09 15:09:31,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720852729] [2023-12-09 15:09:31,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:31,308 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-09 15:09:31,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:31,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-09 15:09:31,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-09 15:09:31,309 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 176 [2023-12-09 15:09:31,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 288 transitions, 1456 flow. Second operand has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 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 15:09:31,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:31,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 176 [2023-12-09 15:09:31,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:31,450 INFO L124 PetriNetUnfolderBase]: 204/1566 cut-off events. [2023-12-09 15:09:31,450 INFO L125 PetriNetUnfolderBase]: For 1677/2162 co-relation queries the response was YES. [2023-12-09 15:09:31,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3070 conditions, 1566 events. 204/1566 cut-off events. For 1677/2162 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 12347 event pairs, 46 based on Foata normal form. 26/1460 useless extension candidates. Maximal degree in co-relation 1853. Up to 251 conditions per place. [2023-12-09 15:09:31,457 INFO L140 encePairwiseOnDemand]: 165/176 looper letters, 80 selfloop transitions, 16 changer transitions 34/299 dead transitions. [2023-12-09 15:09:31,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 299 transitions, 1755 flow [2023-12-09 15:09:31,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-09 15:09:31,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-12-09 15:09:31,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 632 transitions. [2023-12-09 15:09:31,460 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8977272727272727 [2023-12-09 15:09:31,460 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 632 transitions. [2023-12-09 15:09:31,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 632 transitions. [2023-12-09 15:09:31,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:31,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 632 transitions. [2023-12-09 15:09:31,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 15:09:31,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 0 states have call successors, (0), 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 15:09:31,462 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 0 states have call successors, (0), 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 15:09:31,463 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 24 predicate places. [2023-12-09 15:09:31,463 INFO L500 AbstractCegarLoop]: Abstraction has has 183 places, 299 transitions, 1755 flow [2023-12-09 15:09:31,463 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 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 15:09:31,463 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:31,463 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:31,463 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:09:31,463 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 15:09:31,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:31,464 INFO L85 PathProgramCache]: Analyzing trace with hash -2083175081, now seen corresponding path program 3 times [2023-12-09 15:09:31,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:31,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499976984] [2023-12-09 15:09:31,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:31,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:31,614 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 15:09:31,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:31,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499976984] [2023-12-09 15:09:31,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499976984] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:31,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:31,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-09 15:09:31,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449695420] [2023-12-09 15:09:31,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:31,616 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-09 15:09:31,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:31,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-09 15:09:31,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-09 15:09:31,617 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 176 [2023-12-09 15:09:31,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 299 transitions, 1755 flow. Second operand has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 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 15:09:31,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:31,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 176 [2023-12-09 15:09:31,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:31,759 INFO L124 PetriNetUnfolderBase]: 169/1347 cut-off events. [2023-12-09 15:09:31,760 INFO L125 PetriNetUnfolderBase]: For 1975/2521 co-relation queries the response was YES. [2023-12-09 15:09:31,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2850 conditions, 1347 events. 169/1347 cut-off events. For 1975/2521 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 10126 event pairs, 39 based on Foata normal form. 28/1261 useless extension candidates. Maximal degree in co-relation 1788. Up to 204 conditions per place. [2023-12-09 15:09:31,766 INFO L140 encePairwiseOnDemand]: 164/176 looper letters, 75 selfloop transitions, 17 changer transitions 34/295 dead transitions. [2023-12-09 15:09:31,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 295 transitions, 1883 flow [2023-12-09 15:09:31,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-09 15:09:31,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-12-09 15:09:31,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 632 transitions. [2023-12-09 15:09:31,768 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8977272727272727 [2023-12-09 15:09:31,768 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 632 transitions. [2023-12-09 15:09:31,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 632 transitions. [2023-12-09 15:09:31,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:31,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 632 transitions. [2023-12-09 15:09:31,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 15:09:31,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 0 states have call successors, (0), 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 15:09:31,771 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 0 states have call successors, (0), 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 15:09:31,773 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 27 predicate places. [2023-12-09 15:09:31,773 INFO L500 AbstractCegarLoop]: Abstraction has has 186 places, 295 transitions, 1883 flow [2023-12-09 15:09:31,773 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 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 15:09:31,773 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:31,773 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:31,774 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:09:31,774 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 15:09:31,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:31,774 INFO L85 PathProgramCache]: Analyzing trace with hash 807589227, now seen corresponding path program 3 times [2023-12-09 15:09:31,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:31,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615625019] [2023-12-09 15:09:31,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:31,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:31,838 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 15:09:31,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:31,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615625019] [2023-12-09 15:09:31,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615625019] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:31,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:31,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-09 15:09:31,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045276639] [2023-12-09 15:09:31,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:31,839 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-09 15:09:31,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:31,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-09 15:09:31,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-09 15:09:31,840 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 176 [2023-12-09 15:09:31,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 295 transitions, 1883 flow. Second operand has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 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 15:09:31,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:31,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 176 [2023-12-09 15:09:31,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:31,986 INFO L124 PetriNetUnfolderBase]: 154/1376 cut-off events. [2023-12-09 15:09:31,986 INFO L125 PetriNetUnfolderBase]: For 2547/3137 co-relation queries the response was YES. [2023-12-09 15:09:31,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3014 conditions, 1376 events. 154/1376 cut-off events. For 2547/3137 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 10271 event pairs, 39 based on Foata normal form. 38/1305 useless extension candidates. Maximal degree in co-relation 1856. Up to 231 conditions per place. [2023-12-09 15:09:31,992 INFO L140 encePairwiseOnDemand]: 163/176 looper letters, 70 selfloop transitions, 25 changer transitions 32/298 dead transitions. [2023-12-09 15:09:31,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 298 transitions, 2113 flow [2023-12-09 15:09:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:09:31,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:09:31,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 792 transitions. [2023-12-09 15:09:31,994 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.9 [2023-12-09 15:09:31,994 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 792 transitions. [2023-12-09 15:09:31,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 792 transitions. [2023-12-09 15:09:31,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:31,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 792 transitions. [2023-12-09 15:09:31,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 158.4) internal successors, (792), 5 states have internal predecessors, (792), 0 states have call successors, (0), 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 15:09:31,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 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 15:09:31,997 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 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 15:09:31,997 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 31 predicate places. [2023-12-09 15:09:31,997 INFO L500 AbstractCegarLoop]: Abstraction has has 190 places, 298 transitions, 2113 flow [2023-12-09 15:09:31,998 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 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 15:09:31,998 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:31,998 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:31,998 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:09:31,998 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 15:09:31,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:31,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1602710310, now seen corresponding path program 1 times [2023-12-09 15:09:31,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:31,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878096569] [2023-12-09 15:09:31,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:31,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:32,152 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 15:09:32,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:32,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878096569] [2023-12-09 15:09:32,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878096569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:32,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:32,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:32,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393278315] [2023-12-09 15:09:32,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:32,153 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:32,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:32,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:32,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:32,155 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:32,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 298 transitions, 2113 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:32,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:32,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:32,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:32,515 INFO L124 PetriNetUnfolderBase]: 369/1748 cut-off events. [2023-12-09 15:09:32,515 INFO L125 PetriNetUnfolderBase]: For 5601/6292 co-relation queries the response was YES. [2023-12-09 15:09:32,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4803 conditions, 1748 events. 369/1748 cut-off events. For 5601/6292 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 13142 event pairs, 138 based on Foata normal form. 3/1626 useless extension candidates. Maximal degree in co-relation 3058. Up to 772 conditions per place. [2023-12-09 15:09:32,523 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 137 selfloop transitions, 19 changer transitions 60/376 dead transitions. [2023-12-09 15:09:32,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 376 transitions, 2995 flow [2023-12-09 15:09:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:09:32,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:09:32,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2341 transitions. [2023-12-09 15:09:32,527 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7389520202020202 [2023-12-09 15:09:32,527 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2341 transitions. [2023-12-09 15:09:32,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2341 transitions. [2023-12-09 15:09:32,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:32,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2341 transitions. [2023-12-09 15:09:32,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 130.05555555555554) internal successors, (2341), 18 states have internal predecessors, (2341), 0 states have call successors, (0), 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 15:09:32,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 176.0) internal successors, (3344), 19 states have internal predecessors, (3344), 0 states have call successors, (0), 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 15:09:32,535 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 176.0) internal successors, (3344), 19 states have internal predecessors, (3344), 0 states have call successors, (0), 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 15:09:32,535 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 48 predicate places. [2023-12-09 15:09:32,536 INFO L500 AbstractCegarLoop]: Abstraction has has 207 places, 376 transitions, 2995 flow [2023-12-09 15:09:32,536 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:32,536 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:32,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:32,536 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 15:09:32,536 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 15:09:32,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:32,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1173939054, now seen corresponding path program 2 times [2023-12-09 15:09:32,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:32,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576302147] [2023-12-09 15:09:32,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:32,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:32,681 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 15:09:32,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:32,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576302147] [2023-12-09 15:09:32,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576302147] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:32,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:32,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:32,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409626955] [2023-12-09 15:09:32,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:32,682 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:32,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:32,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:32,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:32,684 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:32,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 376 transitions, 2995 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:32,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:32,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:32,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:33,241 INFO L124 PetriNetUnfolderBase]: 386/1890 cut-off events. [2023-12-09 15:09:33,241 INFO L125 PetriNetUnfolderBase]: For 7557/8645 co-relation queries the response was YES. [2023-12-09 15:09:33,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6128 conditions, 1890 events. 386/1890 cut-off events. For 7557/8645 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 14729 event pairs, 106 based on Foata normal form. 10/1784 useless extension candidates. Maximal degree in co-relation 3954. Up to 779 conditions per place. [2023-12-09 15:09:33,251 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 236 selfloop transitions, 33 changer transitions 114/543 dead transitions. [2023-12-09 15:09:33,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 543 transitions, 4811 flow [2023-12-09 15:09:33,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-09 15:09:33,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-12-09 15:09:33,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3881 transitions. [2023-12-09 15:09:33,257 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7350378787878787 [2023-12-09 15:09:33,257 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 3881 transitions. [2023-12-09 15:09:33,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 3881 transitions. [2023-12-09 15:09:33,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:33,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 3881 transitions. [2023-12-09 15:09:33,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 129.36666666666667) internal successors, (3881), 30 states have internal predecessors, (3881), 0 states have call successors, (0), 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 15:09:33,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 176.0) internal successors, (5456), 31 states have internal predecessors, (5456), 0 states have call successors, (0), 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 15:09:33,270 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 176.0) internal successors, (5456), 31 states have internal predecessors, (5456), 0 states have call successors, (0), 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 15:09:33,271 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 77 predicate places. [2023-12-09 15:09:33,271 INFO L500 AbstractCegarLoop]: Abstraction has has 236 places, 543 transitions, 4811 flow [2023-12-09 15:09:33,271 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:33,271 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:33,271 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:33,271 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 15:09:33,272 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 15:09:33,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:33,272 INFO L85 PathProgramCache]: Analyzing trace with hash -44249122, now seen corresponding path program 3 times [2023-12-09 15:09:33,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:33,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8659683] [2023-12-09 15:09:33,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:33,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:33,432 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 15:09:33,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:33,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8659683] [2023-12-09 15:09:33,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8659683] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:33,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:33,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:33,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401290183] [2023-12-09 15:09:33,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:33,433 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:33,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:33,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:33,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:33,435 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:33,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 543 transitions, 4811 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:33,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:33,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:33,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:33,806 INFO L124 PetriNetUnfolderBase]: 406/1993 cut-off events. [2023-12-09 15:09:33,806 INFO L125 PetriNetUnfolderBase]: For 9368/10858 co-relation queries the response was YES. [2023-12-09 15:09:33,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7510 conditions, 1993 events. 406/1993 cut-off events. For 9368/10858 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 15807 event pairs, 104 based on Foata normal form. 34/1916 useless extension candidates. Maximal degree in co-relation 4909. Up to 869 conditions per place. [2023-12-09 15:09:33,817 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 247 selfloop transitions, 40 changer transitions 148/595 dead transitions. [2023-12-09 15:09:33,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 595 transitions, 6136 flow [2023-12-09 15:09:33,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:09:33,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:09:33,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2463 transitions. [2023-12-09 15:09:33,822 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7365430622009569 [2023-12-09 15:09:33,822 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2463 transitions. [2023-12-09 15:09:33,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2463 transitions. [2023-12-09 15:09:33,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:33,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2463 transitions. [2023-12-09 15:09:33,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 129.6315789473684) internal successors, (2463), 19 states have internal predecessors, (2463), 0 states have call successors, (0), 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 15:09:33,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 176.0) internal successors, (3520), 20 states have internal predecessors, (3520), 0 states have call successors, (0), 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 15:09:33,831 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 176.0) internal successors, (3520), 20 states have internal predecessors, (3520), 0 states have call successors, (0), 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 15:09:33,831 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 95 predicate places. [2023-12-09 15:09:33,831 INFO L500 AbstractCegarLoop]: Abstraction has has 254 places, 595 transitions, 6136 flow [2023-12-09 15:09:33,832 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:33,832 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:33,832 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:33,832 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-09 15:09:33,832 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 15:09:33,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:33,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1604288622, now seen corresponding path program 4 times [2023-12-09 15:09:33,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:33,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476435943] [2023-12-09 15:09:33,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:33,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:33,976 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 15:09:33,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:33,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476435943] [2023-12-09 15:09:33,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476435943] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:33,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:33,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:33,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690517478] [2023-12-09 15:09:33,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:33,977 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:33,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:33,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:33,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:33,978 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:33,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 595 transitions, 6136 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:33,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:33,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:33,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:34,524 INFO L124 PetriNetUnfolderBase]: 432/2137 cut-off events. [2023-12-09 15:09:34,525 INFO L125 PetriNetUnfolderBase]: For 12560/14715 co-relation queries the response was YES. [2023-12-09 15:09:34,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9153 conditions, 2137 events. 432/2137 cut-off events. For 12560/14715 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 17362 event pairs, 107 based on Foata normal form. 34/2058 useless extension candidates. Maximal degree in co-relation 5956. Up to 915 conditions per place. [2023-12-09 15:09:34,537 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 261 selfloop transitions, 39 changer transitions 191/651 dead transitions. [2023-12-09 15:09:34,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 651 transitions, 7782 flow [2023-12-09 15:09:34,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-09 15:09:34,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-12-09 15:09:34,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3606 transitions. [2023-12-09 15:09:34,540 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.731737012987013 [2023-12-09 15:09:34,540 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3606 transitions. [2023-12-09 15:09:34,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3606 transitions. [2023-12-09 15:09:34,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:34,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3606 transitions. [2023-12-09 15:09:34,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 128.78571428571428) internal successors, (3606), 28 states have internal predecessors, (3606), 0 states have call successors, (0), 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 15:09:34,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 176.0) internal successors, (5104), 29 states have internal predecessors, (5104), 0 states have call successors, (0), 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 15:09:34,550 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 176.0) internal successors, (5104), 29 states have internal predecessors, (5104), 0 states have call successors, (0), 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 15:09:34,550 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 122 predicate places. [2023-12-09 15:09:34,550 INFO L500 AbstractCegarLoop]: Abstraction has has 281 places, 651 transitions, 7782 flow [2023-12-09 15:09:34,551 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:34,551 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:34,551 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:34,551 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-09 15:09:34,551 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 15:09:34,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:34,552 INFO L85 PathProgramCache]: Analyzing trace with hash -2114760600, now seen corresponding path program 5 times [2023-12-09 15:09:34,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:34,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015000996] [2023-12-09 15:09:34,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:34,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:34,681 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 15:09:34,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:34,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015000996] [2023-12-09 15:09:34,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015000996] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:34,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:34,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:34,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156763620] [2023-12-09 15:09:34,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:34,682 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:34,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:34,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:34,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:34,683 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:34,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 651 transitions, 7782 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:34,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:34,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:34,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:35,232 INFO L124 PetriNetUnfolderBase]: 443/2193 cut-off events. [2023-12-09 15:09:35,232 INFO L125 PetriNetUnfolderBase]: For 14977/17686 co-relation queries the response was YES. [2023-12-09 15:09:35,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10669 conditions, 2193 events. 443/2193 cut-off events. For 14977/17686 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 18133 event pairs, 96 based on Foata normal form. 37/2120 useless extension candidates. Maximal degree in co-relation 7589. Up to 943 conditions per place. [2023-12-09 15:09:35,243 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 256 selfloop transitions, 39 changer transitions 226/683 dead transitions. [2023-12-09 15:09:35,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 683 transitions, 9276 flow [2023-12-09 15:09:35,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-09 15:09:35,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-12-09 15:09:35,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3098 transitions. [2023-12-09 15:09:35,246 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7334280303030303 [2023-12-09 15:09:35,246 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3098 transitions. [2023-12-09 15:09:35,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3098 transitions. [2023-12-09 15:09:35,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:35,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3098 transitions. [2023-12-09 15:09:35,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 129.08333333333334) internal successors, (3098), 24 states have internal predecessors, (3098), 0 states have call successors, (0), 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 15:09:35,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 176.0) internal successors, (4400), 25 states have internal predecessors, (4400), 0 states have call successors, (0), 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 15:09:35,253 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 176.0) internal successors, (4400), 25 states have internal predecessors, (4400), 0 states have call successors, (0), 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 15:09:35,254 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 145 predicate places. [2023-12-09 15:09:35,254 INFO L500 AbstractCegarLoop]: Abstraction has has 304 places, 683 transitions, 9276 flow [2023-12-09 15:09:35,254 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:35,254 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:35,254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:35,254 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-09 15:09:35,254 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 15:09:35,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:35,255 INFO L85 PathProgramCache]: Analyzing trace with hash -38219520, now seen corresponding path program 6 times [2023-12-09 15:09:35,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:35,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669927636] [2023-12-09 15:09:35,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:35,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:35,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:35,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:35,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669927636] [2023-12-09 15:09:35,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669927636] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:35,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:35,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:35,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177324751] [2023-12-09 15:09:35,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:35,395 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:35,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:35,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:35,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:35,396 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:35,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 683 transitions, 9276 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:35,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:35,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:35,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:35,881 INFO L124 PetriNetUnfolderBase]: 442/2173 cut-off events. [2023-12-09 15:09:35,881 INFO L125 PetriNetUnfolderBase]: For 18645/21943 co-relation queries the response was YES. [2023-12-09 15:09:35,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11858 conditions, 2173 events. 442/2173 cut-off events. For 18645/21943 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 17807 event pairs, 105 based on Foata normal form. 31/2094 useless extension candidates. Maximal degree in co-relation 7759. Up to 945 conditions per place. [2023-12-09 15:09:35,892 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 244 selfloop transitions, 24 changer transitions 268/696 dead transitions. [2023-12-09 15:09:35,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 696 transitions, 10593 flow [2023-12-09 15:09:35,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:09:35,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:09:35,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2590 transitions. [2023-12-09 15:09:35,895 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7357954545454546 [2023-12-09 15:09:35,895 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2590 transitions. [2023-12-09 15:09:35,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2590 transitions. [2023-12-09 15:09:35,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:35,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2590 transitions. [2023-12-09 15:09:35,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 129.5) internal successors, (2590), 20 states have internal predecessors, (2590), 0 states have call successors, (0), 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 15:09:35,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:09:35,901 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:09:35,901 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 164 predicate places. [2023-12-09 15:09:35,901 INFO L500 AbstractCegarLoop]: Abstraction has has 323 places, 696 transitions, 10593 flow [2023-12-09 15:09:35,902 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:35,902 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:35,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:35,902 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-09 15:09:35,902 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 15:09:35,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:35,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1129766106, now seen corresponding path program 7 times [2023-12-09 15:09:35,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:35,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726945449] [2023-12-09 15:09:35,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:35,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:36,063 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 15:09:36,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:36,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726945449] [2023-12-09 15:09:36,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726945449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:36,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:36,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:36,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552680852] [2023-12-09 15:09:36,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:36,064 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:36,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:36,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:36,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:36,066 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:36,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 696 transitions, 10593 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:36,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:36,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:36,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:36,715 INFO L124 PetriNetUnfolderBase]: 456/2269 cut-off events. [2023-12-09 15:09:36,715 INFO L125 PetriNetUnfolderBase]: For 22517/26823 co-relation queries the response was YES. [2023-12-09 15:09:36,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13571 conditions, 2269 events. 456/2269 cut-off events. For 22517/26823 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 18788 event pairs, 98 based on Foata normal form. 95/2254 useless extension candidates. Maximal degree in co-relation 8954. Up to 964 conditions per place. [2023-12-09 15:09:36,731 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 288 selfloop transitions, 48 changer transitions 321/817 dead transitions. [2023-12-09 15:09:36,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 817 transitions, 13987 flow [2023-12-09 15:09:36,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-09 15:09:36,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2023-12-09 15:09:36,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 4006 transitions. [2023-12-09 15:09:36,737 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7342375366568915 [2023-12-09 15:09:36,737 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 4006 transitions. [2023-12-09 15:09:36,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 4006 transitions. [2023-12-09 15:09:36,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:36,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 4006 transitions. [2023-12-09 15:09:36,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 129.2258064516129) internal successors, (4006), 31 states have internal predecessors, (4006), 0 states have call successors, (0), 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 15:09:36,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 176.0) internal successors, (5632), 32 states have internal predecessors, (5632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:09:36,754 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 176.0) internal successors, (5632), 32 states have internal predecessors, (5632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:09:36,755 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 194 predicate places. [2023-12-09 15:09:36,756 INFO L500 AbstractCegarLoop]: Abstraction has has 353 places, 817 transitions, 13987 flow [2023-12-09 15:09:36,756 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:36,756 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:36,756 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:36,756 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-09 15:09:36,756 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 15:09:36,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:36,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1826697562, now seen corresponding path program 8 times [2023-12-09 15:09:36,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:36,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766957402] [2023-12-09 15:09:36,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:36,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:36,910 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 15:09:36,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:36,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766957402] [2023-12-09 15:09:36,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766957402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:36,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:36,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:36,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266007283] [2023-12-09 15:09:36,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:36,911 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:36,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:36,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:36,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:36,914 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:36,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 817 transitions, 13987 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:36,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:36,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:36,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:37,591 INFO L124 PetriNetUnfolderBase]: 506/2375 cut-off events. [2023-12-09 15:09:37,591 INFO L125 PetriNetUnfolderBase]: For 25506/28967 co-relation queries the response was YES. [2023-12-09 15:09:37,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15909 conditions, 2375 events. 506/2375 cut-off events. For 25506/28967 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 20008 event pairs, 104 based on Foata normal form. 23/2285 useless extension candidates. Maximal degree in co-relation 10702. Up to 992 conditions per place. [2023-12-09 15:09:37,607 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 359 selfloop transitions, 54 changer transitions 354/927 dead transitions. [2023-12-09 15:09:37,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 927 transitions, 17538 flow [2023-12-09 15:09:37,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:09:37,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:09:37,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2594 transitions. [2023-12-09 15:09:37,610 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7369318181818182 [2023-12-09 15:09:37,610 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2594 transitions. [2023-12-09 15:09:37,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2594 transitions. [2023-12-09 15:09:37,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:37,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2594 transitions. [2023-12-09 15:09:37,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 129.7) internal successors, (2594), 20 states have internal predecessors, (2594), 0 states have call successors, (0), 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 15:09:37,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:09:37,617 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:09:37,617 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 213 predicate places. [2023-12-09 15:09:37,618 INFO L500 AbstractCegarLoop]: Abstraction has has 372 places, 927 transitions, 17538 flow [2023-12-09 15:09:37,618 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:37,618 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:37,618 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:37,618 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-09 15:09:37,618 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 15:09:37,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:37,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1456552608, now seen corresponding path program 9 times [2023-12-09 15:09:37,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:37,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942639757] [2023-12-09 15:09:37,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:37,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:37,769 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 15:09:37,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:37,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942639757] [2023-12-09 15:09:37,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942639757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:37,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:37,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:37,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873198978] [2023-12-09 15:09:37,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:37,772 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:37,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:37,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:37,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:37,774 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:37,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 927 transitions, 17538 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:37,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:37,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:37,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:38,431 INFO L124 PetriNetUnfolderBase]: 517/2497 cut-off events. [2023-12-09 15:09:38,431 INFO L125 PetriNetUnfolderBase]: For 31083/35532 co-relation queries the response was YES. [2023-12-09 15:09:38,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17810 conditions, 2497 events. 517/2497 cut-off events. For 31083/35532 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 21454 event pairs, 102 based on Foata normal form. 22/2406 useless extension candidates. Maximal degree in co-relation 12032. Up to 1012 conditions per place. [2023-12-09 15:09:38,448 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 353 selfloop transitions, 56 changer transitions 395/964 dead transitions. [2023-12-09 15:09:38,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 964 transitions, 19931 flow [2023-12-09 15:09:38,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-09 15:09:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-12-09 15:09:38,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3222 transitions. [2023-12-09 15:09:38,453 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7322727272727273 [2023-12-09 15:09:38,453 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3222 transitions. [2023-12-09 15:09:38,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3222 transitions. [2023-12-09 15:09:38,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:38,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3222 transitions. [2023-12-09 15:09:38,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 128.88) internal successors, (3222), 25 states have internal predecessors, (3222), 0 states have call successors, (0), 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 15:09:38,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 176.0) internal successors, (4576), 26 states have internal predecessors, (4576), 0 states have call successors, (0), 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 15:09:38,506 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 176.0) internal successors, (4576), 26 states have internal predecessors, (4576), 0 states have call successors, (0), 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 15:09:38,506 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 237 predicate places. [2023-12-09 15:09:38,507 INFO L500 AbstractCegarLoop]: Abstraction has has 396 places, 964 transitions, 19931 flow [2023-12-09 15:09:38,507 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:38,507 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:38,507 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:38,507 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-09 15:09:38,507 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 15:09:38,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:38,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1365229798, now seen corresponding path program 10 times [2023-12-09 15:09:38,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:38,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443564203] [2023-12-09 15:09:38,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:38,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:38,646 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 15:09:38,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:38,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443564203] [2023-12-09 15:09:38,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443564203] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:38,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:38,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:38,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715086612] [2023-12-09 15:09:38,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:38,648 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:38,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:38,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:38,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:38,649 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:38,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 964 transitions, 19931 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:38,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:38,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:38,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:39,291 INFO L124 PetriNetUnfolderBase]: 527/2534 cut-off events. [2023-12-09 15:09:39,291 INFO L125 PetriNetUnfolderBase]: For 34682/40036 co-relation queries the response was YES. [2023-12-09 15:09:39,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19734 conditions, 2534 events. 527/2534 cut-off events. For 34682/40036 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 21835 event pairs, 100 based on Foata normal form. 24/2451 useless extension candidates. Maximal degree in co-relation 13369. Up to 1041 conditions per place. [2023-12-09 15:09:39,310 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 356 selfloop transitions, 51 changer transitions 429/996 dead transitions. [2023-12-09 15:09:39,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 996 transitions, 22354 flow [2023-12-09 15:09:39,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:09:39,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:09:39,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2594 transitions. [2023-12-09 15:09:39,317 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7369318181818182 [2023-12-09 15:09:39,317 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2594 transitions. [2023-12-09 15:09:39,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2594 transitions. [2023-12-09 15:09:39,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:39,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2594 transitions. [2023-12-09 15:09:39,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 129.7) internal successors, (2594), 20 states have internal predecessors, (2594), 0 states have call successors, (0), 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 15:09:39,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:09:39,329 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:09:39,330 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 256 predicate places. [2023-12-09 15:09:39,330 INFO L500 AbstractCegarLoop]: Abstraction has has 415 places, 996 transitions, 22354 flow [2023-12-09 15:09:39,330 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:39,330 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:39,330 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:39,331 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-09 15:09:39,331 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 15:09:39,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:39,331 INFO L85 PathProgramCache]: Analyzing trace with hash 51131220, now seen corresponding path program 11 times [2023-12-09 15:09:39,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:39,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970242346] [2023-12-09 15:09:39,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:39,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:39,462 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 15:09:39,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:39,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970242346] [2023-12-09 15:09:39,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970242346] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:39,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:39,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:39,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725952061] [2023-12-09 15:09:39,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:39,463 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:39,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:39,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:39,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:39,464 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:39,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 996 transitions, 22354 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:39,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:39,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:39,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:40,315 INFO L124 PetriNetUnfolderBase]: 547/2739 cut-off events. [2023-12-09 15:09:40,316 INFO L125 PetriNetUnfolderBase]: For 43339/50222 co-relation queries the response was YES. [2023-12-09 15:09:40,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22200 conditions, 2739 events. 547/2739 cut-off events. For 43339/50222 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 24224 event pairs, 96 based on Foata normal form. 41/2666 useless extension candidates. Maximal degree in co-relation 14950. Up to 1081 conditions per place. [2023-12-09 15:09:40,334 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 362 selfloop transitions, 50 changer transitions 474/1046 dead transitions. [2023-12-09 15:09:40,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 1046 transitions, 25487 flow [2023-12-09 15:09:40,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-09 15:09:40,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-12-09 15:09:40,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3482 transitions. [2023-12-09 15:09:40,337 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7327441077441077 [2023-12-09 15:09:40,337 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 3482 transitions. [2023-12-09 15:09:40,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 3482 transitions. [2023-12-09 15:09:40,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:40,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 3482 transitions. [2023-12-09 15:09:40,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 128.96296296296296) internal successors, (3482), 27 states have internal predecessors, (3482), 0 states have call successors, (0), 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 15:09:40,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 176.0) internal successors, (4928), 28 states have internal predecessors, (4928), 0 states have call successors, (0), 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 15:09:40,346 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 176.0) internal successors, (4928), 28 states have internal predecessors, (4928), 0 states have call successors, (0), 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 15:09:40,346 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 282 predicate places. [2023-12-09 15:09:40,346 INFO L500 AbstractCegarLoop]: Abstraction has has 441 places, 1046 transitions, 25487 flow [2023-12-09 15:09:40,347 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:40,347 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:40,347 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:40,347 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-09 15:09:40,347 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 15:09:40,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:40,347 INFO L85 PathProgramCache]: Analyzing trace with hash 289000702, now seen corresponding path program 12 times [2023-12-09 15:09:40,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:40,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915164616] [2023-12-09 15:09:40,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:40,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:40,470 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 15:09:40,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:40,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915164616] [2023-12-09 15:09:40,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915164616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:40,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:40,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:40,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584666253] [2023-12-09 15:09:40,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:40,472 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:40,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:40,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:40,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:40,473 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:40,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 1046 transitions, 25487 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:40,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:40,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:40,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:41,260 INFO L124 PetriNetUnfolderBase]: 558/2732 cut-off events. [2023-12-09 15:09:41,260 INFO L125 PetriNetUnfolderBase]: For 49266/57257 co-relation queries the response was YES. [2023-12-09 15:09:41,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24079 conditions, 2732 events. 558/2732 cut-off events. For 49266/57257 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 24390 event pairs, 104 based on Foata normal form. 35/2654 useless extension candidates. Maximal degree in co-relation 16136. Up to 1099 conditions per place. [2023-12-09 15:09:41,278 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 365 selfloop transitions, 45 changer transitions 508/1078 dead transitions. [2023-12-09 15:09:41,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 1078 transitions, 28219 flow [2023-12-09 15:09:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:09:41,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:09:41,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2596 transitions. [2023-12-09 15:09:41,280 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7375 [2023-12-09 15:09:41,281 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2596 transitions. [2023-12-09 15:09:41,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2596 transitions. [2023-12-09 15:09:41,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:41,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2596 transitions. [2023-12-09 15:09:41,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 129.8) internal successors, (2596), 20 states have internal predecessors, (2596), 0 states have call successors, (0), 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 15:09:41,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:09:41,287 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:09:41,287 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 301 predicate places. [2023-12-09 15:09:41,287 INFO L500 AbstractCegarLoop]: Abstraction has has 460 places, 1078 transitions, 28219 flow [2023-12-09 15:09:41,287 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:41,287 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:41,288 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:41,288 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-09 15:09:41,288 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 15:09:41,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:41,288 INFO L85 PathProgramCache]: Analyzing trace with hash -2091919510, now seen corresponding path program 13 times [2023-12-09 15:09:41,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:41,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189785383] [2023-12-09 15:09:41,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:41,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:41,422 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 15:09:41,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:41,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189785383] [2023-12-09 15:09:41,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189785383] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:41,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:41,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:41,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299142710] [2023-12-09 15:09:41,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:41,423 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:41,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:41,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:41,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:41,424 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:41,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 1078 transitions, 28219 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:41,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:41,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:41,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:42,370 INFO L124 PetriNetUnfolderBase]: 567/2848 cut-off events. [2023-12-09 15:09:42,370 INFO L125 PetriNetUnfolderBase]: For 56268/64777 co-relation queries the response was YES. [2023-12-09 15:09:42,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26347 conditions, 2848 events. 567/2848 cut-off events. For 56268/64777 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 25801 event pairs, 98 based on Foata normal form. 30/2768 useless extension candidates. Maximal degree in co-relation 17643. Up to 1136 conditions per place. [2023-12-09 15:09:42,389 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 362 selfloop transitions, 34 changer transitions 549/1105 dead transitions. [2023-12-09 15:09:42,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 1105 transitions, 30946 flow [2023-12-09 15:09:42,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-09 15:09:42,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-12-09 15:09:42,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3104 transitions. [2023-12-09 15:09:42,392 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7348484848484849 [2023-12-09 15:09:42,392 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3104 transitions. [2023-12-09 15:09:42,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3104 transitions. [2023-12-09 15:09:42,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:42,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3104 transitions. [2023-12-09 15:09:42,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 129.33333333333334) internal successors, (3104), 24 states have internal predecessors, (3104), 0 states have call successors, (0), 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 15:09:42,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 176.0) internal successors, (4400), 25 states have internal predecessors, (4400), 0 states have call successors, (0), 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 15:09:42,401 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 176.0) internal successors, (4400), 25 states have internal predecessors, (4400), 0 states have call successors, (0), 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 15:09:42,401 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 324 predicate places. [2023-12-09 15:09:42,401 INFO L500 AbstractCegarLoop]: Abstraction has has 483 places, 1105 transitions, 30946 flow [2023-12-09 15:09:42,401 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:42,402 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:42,402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:42,402 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-09 15:09:42,403 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 15:09:42,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:42,403 INFO L85 PathProgramCache]: Analyzing trace with hash 224119802, now seen corresponding path program 14 times [2023-12-09 15:09:42,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:42,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656192830] [2023-12-09 15:09:42,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:42,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:42,553 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 15:09:42,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:42,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656192830] [2023-12-09 15:09:42,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656192830] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:42,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:42,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:42,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577637639] [2023-12-09 15:09:42,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:42,554 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:42,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:42,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:42,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:42,555 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:42,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 1105 transitions, 30946 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:42,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:42,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:42,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:43,494 INFO L124 PetriNetUnfolderBase]: 576/2863 cut-off events. [2023-12-09 15:09:43,495 INFO L125 PetriNetUnfolderBase]: For 64170/73974 co-relation queries the response was YES. [2023-12-09 15:09:43,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28331 conditions, 2863 events. 576/2863 cut-off events. For 64170/73974 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 26049 event pairs, 101 based on Foata normal form. 27/2782 useless extension candidates. Maximal degree in co-relation 18948. Up to 1146 conditions per place. [2023-12-09 15:09:43,522 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 348 selfloop transitions, 43 changer transitions 584/1135 dead transitions. [2023-12-09 15:09:43,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 1135 transitions, 33826 flow [2023-12-09 15:09:43,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 15:09:43,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 15:09:43,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2718 transitions. [2023-12-09 15:09:43,525 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7353896103896104 [2023-12-09 15:09:43,525 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2718 transitions. [2023-12-09 15:09:43,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2718 transitions. [2023-12-09 15:09:43,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:43,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2718 transitions. [2023-12-09 15:09:43,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 129.42857142857142) internal successors, (2718), 21 states have internal predecessors, (2718), 0 states have call successors, (0), 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 15:09:43,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 176.0) internal successors, (3872), 22 states have internal predecessors, (3872), 0 states have call successors, (0), 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 15:09:43,532 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 176.0) internal successors, (3872), 22 states have internal predecessors, (3872), 0 states have call successors, (0), 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 15:09:43,532 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 344 predicate places. [2023-12-09 15:09:43,532 INFO L500 AbstractCegarLoop]: Abstraction has has 503 places, 1135 transitions, 33826 flow [2023-12-09 15:09:43,533 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:43,533 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:43,533 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:43,533 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-09 15:09:43,533 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 15:09:43,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:43,534 INFO L85 PathProgramCache]: Analyzing trace with hash -200222824, now seen corresponding path program 15 times [2023-12-09 15:09:43,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:43,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105026734] [2023-12-09 15:09:43,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:43,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:43,676 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 15:09:43,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:43,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105026734] [2023-12-09 15:09:43,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105026734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:43,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:43,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:43,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329567420] [2023-12-09 15:09:43,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:43,679 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:43,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:43,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:43,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:43,681 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:43,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 503 places, 1135 transitions, 33826 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:43,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:43,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:43,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:44,712 INFO L124 PetriNetUnfolderBase]: 588/2903 cut-off events. [2023-12-09 15:09:44,713 INFO L125 PetriNetUnfolderBase]: For 72341/83717 co-relation queries the response was YES. [2023-12-09 15:09:44,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30708 conditions, 2903 events. 588/2903 cut-off events. For 72341/83717 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 26546 event pairs, 98 based on Foata normal form. 27/2823 useless extension candidates. Maximal degree in co-relation 22014. Up to 1178 conditions per place. [2023-12-09 15:09:44,731 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 350 selfloop transitions, 42 changer transitions 617/1169 dead transitions. [2023-12-09 15:09:44,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 1169 transitions, 37009 flow [2023-12-09 15:09:44,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:09:44,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:09:44,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2466 transitions. [2023-12-09 15:09:44,733 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7374401913875598 [2023-12-09 15:09:44,733 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2466 transitions. [2023-12-09 15:09:44,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2466 transitions. [2023-12-09 15:09:44,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:44,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2466 transitions. [2023-12-09 15:09:44,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 129.78947368421052) internal successors, (2466), 19 states have internal predecessors, (2466), 0 states have call successors, (0), 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 15:09:44,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 176.0) internal successors, (3520), 20 states have internal predecessors, (3520), 0 states have call successors, (0), 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 15:09:44,738 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 176.0) internal successors, (3520), 20 states have internal predecessors, (3520), 0 states have call successors, (0), 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 15:09:44,738 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 362 predicate places. [2023-12-09 15:09:44,738 INFO L500 AbstractCegarLoop]: Abstraction has has 521 places, 1169 transitions, 37009 flow [2023-12-09 15:09:44,739 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:44,739 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:44,739 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:44,739 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-09 15:09:44,739 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 15:09:44,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:44,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1734620898, now seen corresponding path program 16 times [2023-12-09 15:09:44,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:44,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225413460] [2023-12-09 15:09:44,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:44,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:44,850 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 15:09:44,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:44,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225413460] [2023-12-09 15:09:44,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225413460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:44,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:44,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:44,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357651968] [2023-12-09 15:09:44,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:44,853 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:44,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:44,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:44,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:44,854 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:44,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 521 places, 1169 transitions, 37009 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:44,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:44,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:44,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:45,737 INFO L124 PetriNetUnfolderBase]: 591/2961 cut-off events. [2023-12-09 15:09:45,738 INFO L125 PetriNetUnfolderBase]: For 83323/96291 co-relation queries the response was YES. [2023-12-09 15:09:45,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32600 conditions, 2961 events. 591/2961 cut-off events. For 83323/96291 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 27120 event pairs, 109 based on Foata normal form. 22/2868 useless extension candidates. Maximal degree in co-relation 21728. Up to 1183 conditions per place. [2023-12-09 15:09:45,761 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 342 selfloop transitions, 29 changer transitions 655/1184 dead transitions. [2023-12-09 15:09:45,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 1184 transitions, 39609 flow [2023-12-09 15:09:45,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:09:45,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:09:45,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2842 transitions. [2023-12-09 15:09:45,764 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7339876033057852 [2023-12-09 15:09:45,764 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2842 transitions. [2023-12-09 15:09:45,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2842 transitions. [2023-12-09 15:09:45,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:45,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2842 transitions. [2023-12-09 15:09:45,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 129.1818181818182) internal successors, (2842), 22 states have internal predecessors, (2842), 0 states have call successors, (0), 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 15:09:45,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 176.0) internal successors, (4048), 23 states have internal predecessors, (4048), 0 states have call successors, (0), 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 15:09:45,769 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 176.0) internal successors, (4048), 23 states have internal predecessors, (4048), 0 states have call successors, (0), 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 15:09:45,770 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 383 predicate places. [2023-12-09 15:09:45,770 INFO L500 AbstractCegarLoop]: Abstraction has has 542 places, 1184 transitions, 39609 flow [2023-12-09 15:09:45,770 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:45,770 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:45,770 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:45,770 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-09 15:09:45,771 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 15:09:45,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:45,771 INFO L85 PathProgramCache]: Analyzing trace with hash -576676250, now seen corresponding path program 17 times [2023-12-09 15:09:45,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:45,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127222486] [2023-12-09 15:09:45,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:45,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:45,911 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 15:09:45,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:45,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127222486] [2023-12-09 15:09:45,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127222486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:45,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:45,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:45,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963882065] [2023-12-09 15:09:45,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:45,912 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:45,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:45,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:45,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:45,913 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:45,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 1184 transitions, 39609 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:45,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:45,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:45,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:46,983 INFO L124 PetriNetUnfolderBase]: 590/3000 cut-off events. [2023-12-09 15:09:46,983 INFO L125 PetriNetUnfolderBase]: For 92773/106679 co-relation queries the response was YES. [2023-12-09 15:09:46,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34500 conditions, 3000 events. 590/3000 cut-off events. For 92773/106679 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 27598 event pairs, 103 based on Foata normal form. 42/2928 useless extension candidates. Maximal degree in co-relation 22965. Up to 1194 conditions per place. [2023-12-09 15:09:47,004 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 322 selfloop transitions, 13 changer transitions 697/1190 dead transitions. [2023-12-09 15:09:47,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 564 places, 1190 transitions, 41911 flow [2023-12-09 15:09:47,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:09:47,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:09:47,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2974 transitions. [2023-12-09 15:09:47,007 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7346837944664032 [2023-12-09 15:09:47,007 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2974 transitions. [2023-12-09 15:09:47,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2974 transitions. [2023-12-09 15:09:47,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:47,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2974 transitions. [2023-12-09 15:09:47,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 129.30434782608697) internal successors, (2974), 23 states have internal predecessors, (2974), 0 states have call successors, (0), 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 15:09:47,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 176.0) internal successors, (4224), 24 states have internal predecessors, (4224), 0 states have call successors, (0), 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 15:09:47,012 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 176.0) internal successors, (4224), 24 states have internal predecessors, (4224), 0 states have call successors, (0), 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 15:09:47,012 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 405 predicate places. [2023-12-09 15:09:47,012 INFO L500 AbstractCegarLoop]: Abstraction has has 564 places, 1190 transitions, 41911 flow [2023-12-09 15:09:47,013 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:47,013 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:47,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:47,013 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-09 15:09:47,013 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 15:09:47,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:47,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1350650750, now seen corresponding path program 18 times [2023-12-09 15:09:47,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:47,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409748146] [2023-12-09 15:09:47,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:47,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:47,136 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 15:09:47,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:47,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409748146] [2023-12-09 15:09:47,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409748146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:47,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:47,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:47,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231450512] [2023-12-09 15:09:47,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:47,137 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:47,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:47,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:47,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:47,138 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:47,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 1190 transitions, 41911 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:47,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:47,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:47,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:48,220 INFO L124 PetriNetUnfolderBase]: 609/3090 cut-off events. [2023-12-09 15:09:48,221 INFO L125 PetriNetUnfolderBase]: For 99699/114408 co-relation queries the response was YES. [2023-12-09 15:09:48,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37350 conditions, 3090 events. 609/3090 cut-off events. For 99699/114408 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 28837 event pairs, 96 based on Foata normal form. 115/3090 useless extension candidates. Maximal degree in co-relation 25014. Up to 1216 conditions per place. [2023-12-09 15:09:48,249 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 298 selfloop transitions, 49 changer transitions 736/1243 dead transitions. [2023-12-09 15:09:48,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 1243 transitions, 46116 flow [2023-12-09 15:09:48,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-09 15:09:48,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-12-09 15:09:48,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3602 transitions. [2023-12-09 15:09:48,252 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7309253246753247 [2023-12-09 15:09:48,252 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3602 transitions. [2023-12-09 15:09:48,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3602 transitions. [2023-12-09 15:09:48,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:48,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3602 transitions. [2023-12-09 15:09:48,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 128.64285714285714) internal successors, (3602), 28 states have internal predecessors, (3602), 0 states have call successors, (0), 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 15:09:48,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 176.0) internal successors, (5104), 29 states have internal predecessors, (5104), 0 states have call successors, (0), 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 15:09:48,258 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 176.0) internal successors, (5104), 29 states have internal predecessors, (5104), 0 states have call successors, (0), 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 15:09:48,258 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 432 predicate places. [2023-12-09 15:09:48,258 INFO L500 AbstractCegarLoop]: Abstraction has has 591 places, 1243 transitions, 46116 flow [2023-12-09 15:09:48,259 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:48,259 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:48,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:48,259 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-09 15:09:48,259 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 15:09:48,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:48,259 INFO L85 PathProgramCache]: Analyzing trace with hash 243785080, now seen corresponding path program 19 times [2023-12-09 15:09:48,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:48,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119447471] [2023-12-09 15:09:48,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:48,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:48,385 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 15:09:48,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:48,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119447471] [2023-12-09 15:09:48,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119447471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:48,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:48,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:48,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700930862] [2023-12-09 15:09:48,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:48,386 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:48,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:48,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:48,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:48,387 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:48,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 591 places, 1243 transitions, 46116 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:48,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:48,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:48,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:49,449 INFO L124 PetriNetUnfolderBase]: 623/3102 cut-off events. [2023-12-09 15:09:49,449 INFO L125 PetriNetUnfolderBase]: For 108819/119920 co-relation queries the response was YES. [2023-12-09 15:09:49,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39665 conditions, 3102 events. 623/3102 cut-off events. For 108819/119920 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 29028 event pairs, 96 based on Foata normal form. 115/3106 useless extension candidates. Maximal degree in co-relation 26475. Up to 1238 conditions per place. [2023-12-09 15:09:49,475 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 288 selfloop transitions, 33 changer transitions 772/1253 dead transitions. [2023-12-09 15:09:49,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 612 places, 1253 transitions, 48754 flow [2023-12-09 15:09:49,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:09:49,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:09:49,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2843 transitions. [2023-12-09 15:09:49,478 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.734245867768595 [2023-12-09 15:09:49,478 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2843 transitions. [2023-12-09 15:09:49,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2843 transitions. [2023-12-09 15:09:49,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:49,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2843 transitions. [2023-12-09 15:09:49,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 129.22727272727272) internal successors, (2843), 22 states have internal predecessors, (2843), 0 states have call successors, (0), 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 15:09:49,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 176.0) internal successors, (4048), 23 states have internal predecessors, (4048), 0 states have call successors, (0), 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 15:09:49,483 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 176.0) internal successors, (4048), 23 states have internal predecessors, (4048), 0 states have call successors, (0), 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 15:09:49,484 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 453 predicate places. [2023-12-09 15:09:49,484 INFO L500 AbstractCegarLoop]: Abstraction has has 612 places, 1253 transitions, 48754 flow [2023-12-09 15:09:49,484 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:49,484 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:49,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:49,484 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-09 15:09:49,484 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 15:09:49,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:49,484 INFO L85 PathProgramCache]: Analyzing trace with hash -49068210, now seen corresponding path program 20 times [2023-12-09 15:09:49,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:49,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17424073] [2023-12-09 15:09:49,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:49,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:49,591 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 15:09:49,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:49,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17424073] [2023-12-09 15:09:49,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17424073] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:49,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:49,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:49,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108187798] [2023-12-09 15:09:49,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:49,592 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:49,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:49,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:49,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:49,593 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:49,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 612 places, 1253 transitions, 48754 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:49,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:49,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:49,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:50,753 INFO L124 PetriNetUnfolderBase]: 644/3210 cut-off events. [2023-12-09 15:09:50,753 INFO L125 PetriNetUnfolderBase]: For 115539/126243 co-relation queries the response was YES. [2023-12-09 15:09:50,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42983 conditions, 3210 events. 644/3210 cut-off events. For 115539/126243 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 30349 event pairs, 98 based on Foata normal form. 61/3164 useless extension candidates. Maximal degree in co-relation 31431. Up to 1264 conditions per place. [2023-12-09 15:09:50,782 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 318 selfloop transitions, 48 changer transitions 805/1331 dead transitions. [2023-12-09 15:09:50,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 1331 transitions, 54433 flow [2023-12-09 15:09:50,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:09:50,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:09:50,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2594 transitions. [2023-12-09 15:09:50,784 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7369318181818182 [2023-12-09 15:09:50,784 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2594 transitions. [2023-12-09 15:09:50,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2594 transitions. [2023-12-09 15:09:50,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:50,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2594 transitions. [2023-12-09 15:09:50,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 129.7) internal successors, (2594), 20 states have internal predecessors, (2594), 0 states have call successors, (0), 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 15:09:50,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:09:50,860 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:09:50,860 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 472 predicate places. [2023-12-09 15:09:50,860 INFO L500 AbstractCegarLoop]: Abstraction has has 631 places, 1331 transitions, 54433 flow [2023-12-09 15:09:50,860 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:50,860 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:50,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:50,860 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-09 15:09:50,861 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 15:09:50,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:50,861 INFO L85 PathProgramCache]: Analyzing trace with hash 235371178, now seen corresponding path program 21 times [2023-12-09 15:09:50,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:50,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839717144] [2023-12-09 15:09:50,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:50,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:51,032 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 15:09:51,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:51,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839717144] [2023-12-09 15:09:51,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839717144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:51,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:51,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:51,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195458942] [2023-12-09 15:09:51,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:51,033 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:51,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:51,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:51,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:51,034 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:51,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 631 places, 1331 transitions, 54433 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:51,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:51,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:51,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:52,192 INFO L124 PetriNetUnfolderBase]: 653/3277 cut-off events. [2023-12-09 15:09:52,192 INFO L125 PetriNetUnfolderBase]: For 127769/139852 co-relation queries the response was YES. [2023-12-09 15:09:52,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45525 conditions, 3277 events. 653/3277 cut-off events. For 127769/139852 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 31041 event pairs, 96 based on Foata normal form. 93/3258 useless extension candidates. Maximal degree in co-relation 30641. Up to 1274 conditions per place. [2023-12-09 15:09:52,227 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 315 selfloop transitions, 46 changer transitions 840/1361 dead transitions. [2023-12-09 15:09:52,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 651 places, 1361 transitions, 58185 flow [2023-12-09 15:09:52,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 15:09:52,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 15:09:52,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2718 transitions. [2023-12-09 15:09:52,230 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7353896103896104 [2023-12-09 15:09:52,230 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2718 transitions. [2023-12-09 15:09:52,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2718 transitions. [2023-12-09 15:09:52,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:52,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2718 transitions. [2023-12-09 15:09:52,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 129.42857142857142) internal successors, (2718), 21 states have internal predecessors, (2718), 0 states have call successors, (0), 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 15:09:52,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 176.0) internal successors, (3872), 22 states have internal predecessors, (3872), 0 states have call successors, (0), 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 15:09:52,235 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 176.0) internal successors, (3872), 22 states have internal predecessors, (3872), 0 states have call successors, (0), 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 15:09:52,235 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 492 predicate places. [2023-12-09 15:09:52,235 INFO L500 AbstractCegarLoop]: Abstraction has has 651 places, 1361 transitions, 58185 flow [2023-12-09 15:09:52,235 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:52,235 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:52,235 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:52,235 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-09 15:09:52,236 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 15:09:52,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:52,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1394846800, now seen corresponding path program 22 times [2023-12-09 15:09:52,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:52,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893154659] [2023-12-09 15:09:52,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:52,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:52,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:52,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:52,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893154659] [2023-12-09 15:09:52,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893154659] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:52,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:52,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:52,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275156067] [2023-12-09 15:09:52,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:52,385 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:52,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:52,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:52,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:52,387 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:52,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 651 places, 1361 transitions, 58185 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:52,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:52,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:52,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:53,903 INFO L124 PetriNetUnfolderBase]: 664/3359 cut-off events. [2023-12-09 15:09:53,903 INFO L125 PetriNetUnfolderBase]: For 143937/157268 co-relation queries the response was YES. [2023-12-09 15:09:53,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48406 conditions, 3359 events. 664/3359 cut-off events. For 143937/157268 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 32227 event pairs, 96 based on Foata normal form. 113/3361 useless extension candidates. Maximal degree in co-relation 32369. Up to 1309 conditions per place. [2023-12-09 15:09:53,936 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 315 selfloop transitions, 37 changer transitions 880/1392 dead transitions. [2023-12-09 15:09:53,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 672 places, 1392 transitions, 62201 flow [2023-12-09 15:09:53,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:09:53,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:09:53,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2848 transitions. [2023-12-09 15:09:53,938 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7355371900826446 [2023-12-09 15:09:53,938 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2848 transitions. [2023-12-09 15:09:53,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2848 transitions. [2023-12-09 15:09:53,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:53,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2848 transitions. [2023-12-09 15:09:53,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 129.45454545454547) internal successors, (2848), 22 states have internal predecessors, (2848), 0 states have call successors, (0), 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 15:09:53,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 176.0) internal successors, (4048), 23 states have internal predecessors, (4048), 0 states have call successors, (0), 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 15:09:53,942 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 176.0) internal successors, (4048), 23 states have internal predecessors, (4048), 0 states have call successors, (0), 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 15:09:53,944 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 513 predicate places. [2023-12-09 15:09:53,945 INFO L500 AbstractCegarLoop]: Abstraction has has 672 places, 1392 transitions, 62201 flow [2023-12-09 15:09:53,945 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:53,945 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:53,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:53,945 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-09 15:09:53,946 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 15:09:53,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:53,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1494086584, now seen corresponding path program 23 times [2023-12-09 15:09:53,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:53,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079704428] [2023-12-09 15:09:53,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:53,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:54,051 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 15:09:54,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:54,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079704428] [2023-12-09 15:09:54,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079704428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:54,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:54,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:54,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672864664] [2023-12-09 15:09:54,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:54,052 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:54,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:54,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:54,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:54,053 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:54,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 672 places, 1392 transitions, 62201 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:54,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:54,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:54,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:55,538 INFO L124 PetriNetUnfolderBase]: 672/3349 cut-off events. [2023-12-09 15:09:55,539 INFO L125 PetriNetUnfolderBase]: For 152096/164866 co-relation queries the response was YES. [2023-12-09 15:09:55,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50951 conditions, 3349 events. 672/3349 cut-off events. For 152096/164866 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 32248 event pairs, 98 based on Foata normal form. 100/3342 useless extension candidates. Maximal degree in co-relation 35951. Up to 1328 conditions per place. [2023-12-09 15:09:55,570 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 308 selfloop transitions, 37 changer transitions 913/1418 dead transitions. [2023-12-09 15:09:55,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 690 places, 1418 transitions, 66016 flow [2023-12-09 15:09:55,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:09:55,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:09:55,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2470 transitions. [2023-12-09 15:09:55,572 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7386363636363636 [2023-12-09 15:09:55,572 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2470 transitions. [2023-12-09 15:09:55,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2470 transitions. [2023-12-09 15:09:55,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:55,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2470 transitions. [2023-12-09 15:09:55,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 130.0) internal successors, (2470), 19 states have internal predecessors, (2470), 0 states have call successors, (0), 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 15:09:55,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 176.0) internal successors, (3520), 20 states have internal predecessors, (3520), 0 states have call successors, (0), 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 15:09:55,575 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 176.0) internal successors, (3520), 20 states have internal predecessors, (3520), 0 states have call successors, (0), 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 15:09:55,576 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 531 predicate places. [2023-12-09 15:09:55,576 INFO L500 AbstractCegarLoop]: Abstraction has has 690 places, 1418 transitions, 66016 flow [2023-12-09 15:09:55,576 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:55,576 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:55,576 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:55,576 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-09 15:09:55,576 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 15:09:55,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:55,577 INFO L85 PathProgramCache]: Analyzing trace with hash -872332124, now seen corresponding path program 24 times [2023-12-09 15:09:55,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:55,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753159053] [2023-12-09 15:09:55,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:55,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:55,694 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 15:09:55,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:55,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753159053] [2023-12-09 15:09:55,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753159053] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:55,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:55,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:55,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594882784] [2023-12-09 15:09:55,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:55,695 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:55,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:55,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:55,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:55,696 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:55,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 690 places, 1418 transitions, 66016 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:55,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:55,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:55,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:57,073 INFO L124 PetriNetUnfolderBase]: 696/3533 cut-off events. [2023-12-09 15:09:57,073 INFO L125 PetriNetUnfolderBase]: For 176908/192675 co-relation queries the response was YES. [2023-12-09 15:09:57,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54476 conditions, 3533 events. 696/3533 cut-off events. For 176908/192675 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 34659 event pairs, 93 based on Foata normal form. 115/3537 useless extension candidates. Maximal degree in co-relation 36439. Up to 1357 conditions per place. [2023-12-09 15:09:57,110 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 309 selfloop transitions, 34 changer transitions 946/1451 dead transitions. [2023-12-09 15:09:57,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 711 places, 1451 transitions, 70295 flow [2023-12-09 15:09:57,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:09:57,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:09:57,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2846 transitions. [2023-12-09 15:09:57,112 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7350206611570248 [2023-12-09 15:09:57,112 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2846 transitions. [2023-12-09 15:09:57,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2846 transitions. [2023-12-09 15:09:57,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:57,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2846 transitions. [2023-12-09 15:09:57,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 129.36363636363637) internal successors, (2846), 22 states have internal predecessors, (2846), 0 states have call successors, (0), 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 15:09:57,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 176.0) internal successors, (4048), 23 states have internal predecessors, (4048), 0 states have call successors, (0), 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 15:09:57,116 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 176.0) internal successors, (4048), 23 states have internal predecessors, (4048), 0 states have call successors, (0), 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 15:09:57,117 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 552 predicate places. [2023-12-09 15:09:57,117 INFO L500 AbstractCegarLoop]: Abstraction has has 711 places, 1451 transitions, 70295 flow [2023-12-09 15:09:57,117 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:57,117 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:57,117 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:57,117 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-09 15:09:57,117 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 15:09:57,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:57,118 INFO L85 PathProgramCache]: Analyzing trace with hash -959166926, now seen corresponding path program 25 times [2023-12-09 15:09:57,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:57,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889455570] [2023-12-09 15:09:57,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:57,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:57,226 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 15:09:57,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:57,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889455570] [2023-12-09 15:09:57,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889455570] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:57,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:57,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:57,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109717047] [2023-12-09 15:09:57,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:57,227 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:57,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:57,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:57,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:57,228 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:57,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 711 places, 1451 transitions, 70295 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:57,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:57,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:57,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:59,001 INFO L124 PetriNetUnfolderBase]: 687/3524 cut-off events. [2023-12-09 15:09:59,001 INFO L125 PetriNetUnfolderBase]: For 181782/196977 co-relation queries the response was YES. [2023-12-09 15:09:59,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56596 conditions, 3524 events. 687/3524 cut-off events. For 181782/196977 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 34787 event pairs, 98 based on Foata normal form. 94/3511 useless extension candidates. Maximal degree in co-relation 37801. Up to 1363 conditions per place. [2023-12-09 15:09:59,033 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 301 selfloop transitions, 19 changer transitions 991/1471 dead transitions. [2023-12-09 15:09:59,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 737 places, 1471 transitions, 73984 flow [2023-12-09 15:09:59,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-09 15:09:59,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-12-09 15:09:59,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3477 transitions. [2023-12-09 15:09:59,035 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7316919191919192 [2023-12-09 15:09:59,036 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 3477 transitions. [2023-12-09 15:09:59,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 3477 transitions. [2023-12-09 15:09:59,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:59,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 3477 transitions. [2023-12-09 15:09:59,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 128.77777777777777) internal successors, (3477), 27 states have internal predecessors, (3477), 0 states have call successors, (0), 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 15:09:59,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 176.0) internal successors, (4928), 28 states have internal predecessors, (4928), 0 states have call successors, (0), 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 15:09:59,041 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 176.0) internal successors, (4928), 28 states have internal predecessors, (4928), 0 states have call successors, (0), 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 15:09:59,043 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 578 predicate places. [2023-12-09 15:09:59,043 INFO L500 AbstractCegarLoop]: Abstraction has has 737 places, 1471 transitions, 73984 flow [2023-12-09 15:09:59,043 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:59,043 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:59,043 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:59,043 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-09 15:09:59,043 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 15:09:59,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:59,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1540215494, now seen corresponding path program 26 times [2023-12-09 15:09:59,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:59,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072245691] [2023-12-09 15:09:59,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:59,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:59,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:59,165 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 15:09:59,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:59,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072245691] [2023-12-09 15:09:59,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072245691] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:59,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:59,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:09:59,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675130699] [2023-12-09 15:09:59,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:59,166 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:09:59,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:59,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:09:59,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:09:59,167 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:09:59,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 737 places, 1471 transitions, 73984 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:09:59,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:59,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:09:59,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:00,795 INFO L124 PetriNetUnfolderBase]: 718/3683 cut-off events. [2023-12-09 15:10:00,796 INFO L125 PetriNetUnfolderBase]: For 198577/214480 co-relation queries the response was YES. [2023-12-09 15:10:00,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60961 conditions, 3683 events. 718/3683 cut-off events. For 198577/214480 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 36796 event pairs, 93 based on Foata normal form. 51/3627 useless extension candidates. Maximal degree in co-relation 40849. Up to 1402 conditions per place. [2023-12-09 15:10:00,825 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 307 selfloop transitions, 46 changer transitions 1028/1543 dead transitions. [2023-12-09 15:10:00,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 760 places, 1543 transitions, 80744 flow [2023-12-09 15:10:00,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-09 15:10:00,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-12-09 15:10:00,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3103 transitions. [2023-12-09 15:10:00,827 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7346117424242424 [2023-12-09 15:10:00,827 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3103 transitions. [2023-12-09 15:10:00,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3103 transitions. [2023-12-09 15:10:00,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:00,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3103 transitions. [2023-12-09 15:10:00,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 129.29166666666666) internal successors, (3103), 24 states have internal predecessors, (3103), 0 states have call successors, (0), 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 15:10:00,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 176.0) internal successors, (4400), 25 states have internal predecessors, (4400), 0 states have call successors, (0), 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 15:10:00,832 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 176.0) internal successors, (4400), 25 states have internal predecessors, (4400), 0 states have call successors, (0), 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 15:10:00,832 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 601 predicate places. [2023-12-09 15:10:00,832 INFO L500 AbstractCegarLoop]: Abstraction has has 760 places, 1543 transitions, 80744 flow [2023-12-09 15:10:00,832 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:00,832 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:00,832 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:00,833 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-09 15:10:00,833 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 15:10:00,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:00,833 INFO L85 PathProgramCache]: Analyzing trace with hash 707539914, now seen corresponding path program 27 times [2023-12-09 15:10:00,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:00,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920650233] [2023-12-09 15:10:00,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:00,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:00,956 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 15:10:00,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:00,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920650233] [2023-12-09 15:10:00,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920650233] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:00,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:00,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:00,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873890192] [2023-12-09 15:10:00,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:00,957 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:00,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:00,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:00,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:00,958 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:00,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 760 places, 1543 transitions, 80744 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:00,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:00,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:00,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:02,396 INFO L124 PetriNetUnfolderBase]: 728/3762 cut-off events. [2023-12-09 15:10:02,396 INFO L125 PetriNetUnfolderBase]: For 212649/227634 co-relation queries the response was YES. [2023-12-09 15:10:02,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64096 conditions, 3762 events. 728/3762 cut-off events. For 212649/227634 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 37926 event pairs, 91 based on Foata normal form. 57/3713 useless extension candidates. Maximal degree in co-relation 50148. Up to 1421 conditions per place. [2023-12-09 15:10:02,565 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 302 selfloop transitions, 49 changer transitions 1062/1575 dead transitions. [2023-12-09 15:10:02,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 779 places, 1575 transitions, 85413 flow [2023-12-09 15:10:02,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:10:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:10:02,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2593 transitions. [2023-12-09 15:10:02,568 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7366477272727273 [2023-12-09 15:10:02,568 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2593 transitions. [2023-12-09 15:10:02,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2593 transitions. [2023-12-09 15:10:02,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:02,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2593 transitions. [2023-12-09 15:10:02,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 129.65) internal successors, (2593), 20 states have internal predecessors, (2593), 0 states have call successors, (0), 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 15:10:02,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:10:02,572 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:10:02,572 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 620 predicate places. [2023-12-09 15:10:02,572 INFO L500 AbstractCegarLoop]: Abstraction has has 779 places, 1575 transitions, 85413 flow [2023-12-09 15:10:02,572 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:02,572 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:02,573 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:02,573 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-09 15:10:02,573 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 15:10:02,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:02,573 INFO L85 PathProgramCache]: Analyzing trace with hash -304000852, now seen corresponding path program 28 times [2023-12-09 15:10:02,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:02,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836107049] [2023-12-09 15:10:02,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:02,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:02,703 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 15:10:02,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:02,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836107049] [2023-12-09 15:10:02,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836107049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:02,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:02,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:02,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737779482] [2023-12-09 15:10:02,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:02,704 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:02,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:02,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:02,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:02,705 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:02,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 779 places, 1575 transitions, 85413 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:02,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:02,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:02,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:04,315 INFO L124 PetriNetUnfolderBase]: 744/3765 cut-off events. [2023-12-09 15:10:04,316 INFO L125 PetriNetUnfolderBase]: For 237506/256036 co-relation queries the response was YES. [2023-12-09 15:10:04,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67420 conditions, 3765 events. 744/3765 cut-off events. For 237506/256036 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 37739 event pairs, 101 based on Foata normal form. 55/3712 useless extension candidates. Maximal degree in co-relation 45074. Up to 1443 conditions per place. [2023-12-09 15:10:04,356 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 309 selfloop transitions, 51 changer transitions 1097/1617 dead transitions. [2023-12-09 15:10:04,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 797 places, 1617 transitions, 90840 flow [2023-12-09 15:10:04,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:10:04,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:10:04,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2471 transitions. [2023-12-09 15:10:04,358 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7389354066985646 [2023-12-09 15:10:04,358 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2471 transitions. [2023-12-09 15:10:04,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2471 transitions. [2023-12-09 15:10:04,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:04,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2471 transitions. [2023-12-09 15:10:04,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 130.05263157894737) internal successors, (2471), 19 states have internal predecessors, (2471), 0 states have call successors, (0), 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 15:10:04,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 176.0) internal successors, (3520), 20 states have internal predecessors, (3520), 0 states have call successors, (0), 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 15:10:04,362 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 176.0) internal successors, (3520), 20 states have internal predecessors, (3520), 0 states have call successors, (0), 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 15:10:04,362 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 638 predicate places. [2023-12-09 15:10:04,362 INFO L500 AbstractCegarLoop]: Abstraction has has 797 places, 1617 transitions, 90840 flow [2023-12-09 15:10:04,362 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:04,362 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:04,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:04,363 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-09 15:10:04,363 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 15:10:04,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:04,363 INFO L85 PathProgramCache]: Analyzing trace with hash 734264176, now seen corresponding path program 29 times [2023-12-09 15:10:04,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:04,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827409040] [2023-12-09 15:10:04,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:04,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:04,497 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 15:10:04,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:04,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827409040] [2023-12-09 15:10:04,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827409040] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:04,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:04,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:04,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903974265] [2023-12-09 15:10:04,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:04,498 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:04,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:04,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:04,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:04,499 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:04,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 797 places, 1617 transitions, 90840 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:04,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:04,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:04,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:06,293 INFO L124 PetriNetUnfolderBase]: 756/3836 cut-off events. [2023-12-09 15:10:06,293 INFO L125 PetriNetUnfolderBase]: For 258790/279609 co-relation queries the response was YES. [2023-12-09 15:10:06,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70664 conditions, 3836 events. 756/3836 cut-off events. For 258790/279609 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 38760 event pairs, 104 based on Foata normal form. 48/3774 useless extension candidates. Maximal degree in co-relation 47249. Up to 1457 conditions per place. [2023-12-09 15:10:06,334 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 314 selfloop transitions, 48 changer transitions 1131/1653 dead transitions. [2023-12-09 15:10:06,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 817 places, 1653 transitions, 96029 flow [2023-12-09 15:10:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 15:10:06,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 15:10:06,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2723 transitions. [2023-12-09 15:10:06,336 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7367424242424242 [2023-12-09 15:10:06,336 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2723 transitions. [2023-12-09 15:10:06,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2723 transitions. [2023-12-09 15:10:06,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:06,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2723 transitions. [2023-12-09 15:10:06,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 129.66666666666666) internal successors, (2723), 21 states have internal predecessors, (2723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:10:06,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 176.0) internal successors, (3872), 22 states have internal predecessors, (3872), 0 states have call successors, (0), 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 15:10:06,340 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 176.0) internal successors, (3872), 22 states have internal predecessors, (3872), 0 states have call successors, (0), 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 15:10:06,340 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 658 predicate places. [2023-12-09 15:10:06,340 INFO L500 AbstractCegarLoop]: Abstraction has has 817 places, 1653 transitions, 96029 flow [2023-12-09 15:10:06,341 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:06,341 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:06,341 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:06,341 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-09 15:10:06,341 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 15:10:06,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:06,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1019667936, now seen corresponding path program 30 times [2023-12-09 15:10:06,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:06,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069181679] [2023-12-09 15:10:06,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:06,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:06,458 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 15:10:06,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:06,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069181679] [2023-12-09 15:10:06,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069181679] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:06,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:06,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:06,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897759625] [2023-12-09 15:10:06,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:06,459 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:06,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:06,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:06,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:06,460 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:06,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 817 places, 1653 transitions, 96029 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:06,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:06,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:06,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:08,432 INFO L124 PetriNetUnfolderBase]: 758/3845 cut-off events. [2023-12-09 15:10:08,432 INFO L125 PetriNetUnfolderBase]: For 275874/298399 co-relation queries the response was YES. [2023-12-09 15:10:08,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73496 conditions, 3845 events. 758/3845 cut-off events. For 275874/298399 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 38902 event pairs, 94 based on Foata normal form. 78/3815 useless extension candidates. Maximal degree in co-relation 49127. Up to 1473 conditions per place. [2023-12-09 15:10:08,470 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 300 selfloop transitions, 41 changer transitions 1164/1667 dead transitions. [2023-12-09 15:10:08,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 836 places, 1667 transitions, 99942 flow [2023-12-09 15:10:08,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:10:08,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:10:08,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2595 transitions. [2023-12-09 15:10:08,472 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7372159090909091 [2023-12-09 15:10:08,472 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2595 transitions. [2023-12-09 15:10:08,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2595 transitions. [2023-12-09 15:10:08,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:08,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2595 transitions. [2023-12-09 15:10:08,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 129.75) internal successors, (2595), 20 states have internal predecessors, (2595), 0 states have call successors, (0), 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 15:10:08,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:10:08,476 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:10:08,476 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 677 predicate places. [2023-12-09 15:10:08,476 INFO L500 AbstractCegarLoop]: Abstraction has has 836 places, 1667 transitions, 99942 flow [2023-12-09 15:10:08,476 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:08,476 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:08,477 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:08,477 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-09 15:10:08,477 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 15:10:08,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:08,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1739551726, now seen corresponding path program 31 times [2023-12-09 15:10:08,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:08,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787042094] [2023-12-09 15:10:08,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:08,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:08,604 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 15:10:08,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:08,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787042094] [2023-12-09 15:10:08,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787042094] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:08,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:08,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:08,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361466048] [2023-12-09 15:10:08,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:08,604 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:08,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:08,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:08,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:08,605 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:08,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 836 places, 1667 transitions, 99942 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:08,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:08,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:08,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:10,648 INFO L124 PetriNetUnfolderBase]: 767/3900 cut-off events. [2023-12-09 15:10:10,649 INFO L125 PetriNetUnfolderBase]: For 298252/322893 co-relation queries the response was YES. [2023-12-09 15:10:10,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76774 conditions, 3900 events. 767/3900 cut-off events. For 298252/322893 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 39690 event pairs, 102 based on Foata normal form. 69/3863 useless extension candidates. Maximal degree in co-relation 51149. Up to 1500 conditions per place. [2023-12-09 15:10:10,684 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 289 selfloop transitions, 33 changer transitions 1212/1694 dead transitions. [2023-12-09 15:10:10,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 861 places, 1694 transitions, 104819 flow [2023-12-09 15:10:10,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-09 15:10:10,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-12-09 15:10:10,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 3355 transitions. [2023-12-09 15:10:10,686 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7331730769230769 [2023-12-09 15:10:10,686 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 3355 transitions. [2023-12-09 15:10:10,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 3355 transitions. [2023-12-09 15:10:10,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:10,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 3355 transitions. [2023-12-09 15:10:10,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 129.03846153846155) internal successors, (3355), 26 states have internal predecessors, (3355), 0 states have call successors, (0), 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 15:10:10,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 176.0) internal successors, (4752), 27 states have internal predecessors, (4752), 0 states have call successors, (0), 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 15:10:10,690 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 176.0) internal successors, (4752), 27 states have internal predecessors, (4752), 0 states have call successors, (0), 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 15:10:10,691 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 702 predicate places. [2023-12-09 15:10:10,691 INFO L500 AbstractCegarLoop]: Abstraction has has 861 places, 1694 transitions, 104819 flow [2023-12-09 15:10:10,692 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:10,692 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:10,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:10,692 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-09 15:10:10,692 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 15:10:10,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:10,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1524906794, now seen corresponding path program 32 times [2023-12-09 15:10:10,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:10,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741862182] [2023-12-09 15:10:10,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:10,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:10,826 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 15:10:10,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:10,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741862182] [2023-12-09 15:10:10,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741862182] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:10,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:10,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:10,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450494500] [2023-12-09 15:10:10,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:10,827 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:10,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:10,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:10,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:10,829 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:10,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 861 places, 1694 transitions, 104819 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:10,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:10,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:10,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:12,782 INFO L124 PetriNetUnfolderBase]: 778/3959 cut-off events. [2023-12-09 15:10:12,782 INFO L125 PetriNetUnfolderBase]: For 321057/346913 co-relation queries the response was YES. [2023-12-09 15:10:12,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80105 conditions, 3959 events. 778/3959 cut-off events. For 321057/346913 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 40568 event pairs, 105 based on Foata normal form. 67/3918 useless extension candidates. Maximal degree in co-relation 53257. Up to 1518 conditions per place. [2023-12-09 15:10:12,822 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 287 selfloop transitions, 33 changer transitions 1246/1726 dead transitions. [2023-12-09 15:10:12,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 880 places, 1726 transitions, 110127 flow [2023-12-09 15:10:12,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:10:12,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:10:12,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2599 transitions. [2023-12-09 15:10:12,823 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7383522727272728 [2023-12-09 15:10:12,823 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2599 transitions. [2023-12-09 15:10:12,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2599 transitions. [2023-12-09 15:10:12,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:12,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2599 transitions. [2023-12-09 15:10:12,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 129.95) internal successors, (2599), 20 states have internal predecessors, (2599), 0 states have call successors, (0), 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 15:10:12,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:10:12,827 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:10:12,828 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 721 predicate places. [2023-12-09 15:10:12,828 INFO L500 AbstractCegarLoop]: Abstraction has has 880 places, 1726 transitions, 110127 flow [2023-12-09 15:10:12,828 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:12,828 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:12,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:12,828 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-09 15:10:12,828 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 15:10:12,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:12,829 INFO L85 PathProgramCache]: Analyzing trace with hash 341528648, now seen corresponding path program 33 times [2023-12-09 15:10:12,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:12,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812992530] [2023-12-09 15:10:12,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:12,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:12,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:12,996 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 15:10:12,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:12,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812992530] [2023-12-09 15:10:12,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812992530] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:12,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:12,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:12,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543222686] [2023-12-09 15:10:12,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:12,997 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:12,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:12,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:12,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:12,998 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:12,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 880 places, 1726 transitions, 110127 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:12,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:12,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:12,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:15,135 INFO L124 PetriNetUnfolderBase]: 781/4131 cut-off events. [2023-12-09 15:10:15,136 INFO L125 PetriNetUnfolderBase]: For 331503/353176 co-relation queries the response was YES. [2023-12-09 15:10:15,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83483 conditions, 4131 events. 781/4131 cut-off events. For 331503/353176 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 43066 event pairs, 92 based on Foata normal form. 57/4082 useless extension candidates. Maximal degree in co-relation 65731. Up to 1543 conditions per place. [2023-12-09 15:10:15,172 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 271 selfloop transitions, 24 changer transitions 1284/1741 dead transitions. [2023-12-09 15:10:15,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 902 places, 1741 transitions, 114351 flow [2023-12-09 15:10:15,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:10:15,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:10:15,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2979 transitions. [2023-12-09 15:10:15,174 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7359189723320159 [2023-12-09 15:10:15,174 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2979 transitions. [2023-12-09 15:10:15,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2979 transitions. [2023-12-09 15:10:15,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:15,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2979 transitions. [2023-12-09 15:10:15,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 129.52173913043478) internal successors, (2979), 23 states have internal predecessors, (2979), 0 states have call successors, (0), 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 15:10:15,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 176.0) internal successors, (4224), 24 states have internal predecessors, (4224), 0 states have call successors, (0), 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 15:10:15,178 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 176.0) internal successors, (4224), 24 states have internal predecessors, (4224), 0 states have call successors, (0), 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 15:10:15,178 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 743 predicate places. [2023-12-09 15:10:15,178 INFO L500 AbstractCegarLoop]: Abstraction has has 902 places, 1741 transitions, 114351 flow [2023-12-09 15:10:15,179 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:15,179 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:15,179 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:15,179 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-09 15:10:15,179 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 15:10:15,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:15,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1058532980, now seen corresponding path program 34 times [2023-12-09 15:10:15,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:15,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433428867] [2023-12-09 15:10:15,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:15,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:15,287 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 15:10:15,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:15,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433428867] [2023-12-09 15:10:15,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433428867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:15,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:15,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:15,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457503488] [2023-12-09 15:10:15,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:15,288 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:15,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:15,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:15,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:15,289 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:15,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 902 places, 1741 transitions, 114351 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:15,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:15,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:15,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:17,286 INFO L124 PetriNetUnfolderBase]: 792/4081 cut-off events. [2023-12-09 15:10:17,287 INFO L125 PetriNetUnfolderBase]: For 353112/378338 co-relation queries the response was YES. [2023-12-09 15:10:17,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86817 conditions, 4081 events. 792/4081 cut-off events. For 353112/378338 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 42214 event pairs, 95 based on Foata normal form. 81/4054 useless extension candidates. Maximal degree in co-relation 65203. Up to 1557 conditions per place. [2023-12-09 15:10:17,332 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 270 selfloop transitions, 23 changer transitions 1319/1774 dead transitions. [2023-12-09 15:10:17,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 923 places, 1774 transitions, 119936 flow [2023-12-09 15:10:17,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:10:17,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:10:17,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2847 transitions. [2023-12-09 15:10:17,334 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7352789256198347 [2023-12-09 15:10:17,334 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2847 transitions. [2023-12-09 15:10:17,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2847 transitions. [2023-12-09 15:10:17,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:17,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2847 transitions. [2023-12-09 15:10:17,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 129.4090909090909) internal successors, (2847), 22 states have internal predecessors, (2847), 0 states have call successors, (0), 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 15:10:17,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 176.0) internal successors, (4048), 23 states have internal predecessors, (4048), 0 states have call successors, (0), 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 15:10:17,338 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 176.0) internal successors, (4048), 23 states have internal predecessors, (4048), 0 states have call successors, (0), 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 15:10:17,338 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 764 predicate places. [2023-12-09 15:10:17,338 INFO L500 AbstractCegarLoop]: Abstraction has has 923 places, 1774 transitions, 119936 flow [2023-12-09 15:10:17,338 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:17,339 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:17,339 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:17,339 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-09 15:10:17,339 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 15:10:17,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:17,339 INFO L85 PathProgramCache]: Analyzing trace with hash -727378602, now seen corresponding path program 35 times [2023-12-09 15:10:17,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:17,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928007100] [2023-12-09 15:10:17,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:17,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:17,565 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 15:10:17,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:17,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928007100] [2023-12-09 15:10:17,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928007100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:17,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:17,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:17,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311055510] [2023-12-09 15:10:17,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:17,566 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:17,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:17,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:17,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:17,567 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:17,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 923 places, 1774 transitions, 119936 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:17,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:17,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:17,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:19,638 INFO L124 PetriNetUnfolderBase]: 792/4063 cut-off events. [2023-12-09 15:10:19,638 INFO L125 PetriNetUnfolderBase]: For 373539/400538 co-relation queries the response was YES. [2023-12-09 15:10:19,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88648 conditions, 4063 events. 792/4063 cut-off events. For 373539/400538 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 42110 event pairs, 97 based on Foata normal form. 49/4009 useless extension candidates. Maximal degree in co-relation 74893. Up to 1545 conditions per place. [2023-12-09 15:10:19,679 INFO L140 encePairwiseOnDemand]: 161/176 looper letters, 233 selfloop transitions, 2 changer transitions 1364/1757 dead transitions. [2023-12-09 15:10:19,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 1757 transitions, 121902 flow [2023-12-09 15:10:19,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-09 15:10:19,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-12-09 15:10:19,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 3352 transitions. [2023-12-09 15:10:19,682 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7325174825174825 [2023-12-09 15:10:19,682 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 3352 transitions. [2023-12-09 15:10:19,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 3352 transitions. [2023-12-09 15:10:19,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:19,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 3352 transitions. [2023-12-09 15:10:19,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 128.92307692307693) internal successors, (3352), 26 states have internal predecessors, (3352), 0 states have call successors, (0), 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 15:10:19,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 176.0) internal successors, (4752), 27 states have internal predecessors, (4752), 0 states have call successors, (0), 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 15:10:19,688 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 176.0) internal successors, (4752), 27 states have internal predecessors, (4752), 0 states have call successors, (0), 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 15:10:19,692 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 789 predicate places. [2023-12-09 15:10:19,692 INFO L500 AbstractCegarLoop]: Abstraction has has 948 places, 1757 transitions, 121902 flow [2023-12-09 15:10:19,692 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:19,692 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:19,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:19,692 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-09 15:10:19,692 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 15:10:19,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:19,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1655010306, now seen corresponding path program 1 times [2023-12-09 15:10:19,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:19,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804111106] [2023-12-09 15:10:19,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:19,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:19,801 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 15:10:19,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:19,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804111106] [2023-12-09 15:10:19,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804111106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:19,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:19,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:19,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120368408] [2023-12-09 15:10:19,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:19,803 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:19,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:19,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:19,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:19,805 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:19,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 948 places, 1757 transitions, 121902 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:19,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:19,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:19,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:22,485 INFO L124 PetriNetUnfolderBase]: 990/4666 cut-off events. [2023-12-09 15:10:22,485 INFO L125 PetriNetUnfolderBase]: For 477780/497355 co-relation queries the response was YES. [2023-12-09 15:10:22,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101387 conditions, 4666 events. 990/4666 cut-off events. For 477780/497355 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 48529 event pairs, 148 based on Foata normal form. 5/4562 useless extension candidates. Maximal degree in co-relation 70323. Up to 2343 conditions per place. [2023-12-09 15:10:22,530 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 259 selfloop transitions, 23 changer transitions 1396/1849 dead transitions. [2023-12-09 15:10:22,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 970 places, 1849 transitions, 131632 flow [2023-12-09 15:10:22,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:10:22,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:10:22,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2970 transitions. [2023-12-09 15:10:22,532 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7336956521739131 [2023-12-09 15:10:22,532 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2970 transitions. [2023-12-09 15:10:22,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2970 transitions. [2023-12-09 15:10:22,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:22,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2970 transitions. [2023-12-09 15:10:22,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 129.1304347826087) internal successors, (2970), 23 states have internal predecessors, (2970), 0 states have call successors, (0), 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 15:10:22,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 176.0) internal successors, (4224), 24 states have internal predecessors, (4224), 0 states have call successors, (0), 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 15:10:22,536 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 176.0) internal successors, (4224), 24 states have internal predecessors, (4224), 0 states have call successors, (0), 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 15:10:22,537 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 811 predicate places. [2023-12-09 15:10:22,537 INFO L500 AbstractCegarLoop]: Abstraction has has 970 places, 1849 transitions, 131632 flow [2023-12-09 15:10:22,537 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:22,537 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:22,537 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:22,537 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-09 15:10:22,537 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 15:10:22,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:22,538 INFO L85 PathProgramCache]: Analyzing trace with hash -857583078, now seen corresponding path program 2 times [2023-12-09 15:10:22,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:22,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194979536] [2023-12-09 15:10:22,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:22,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:22,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:10:22,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:22,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194979536] [2023-12-09 15:10:22,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194979536] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:22,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:22,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:22,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042021459] [2023-12-09 15:10:22,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:22,663 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:22,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:22,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:22,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:22,665 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:22,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 970 places, 1849 transitions, 131632 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:22,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:22,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:22,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:25,283 INFO L124 PetriNetUnfolderBase]: 1014/4696 cut-off events. [2023-12-09 15:10:25,284 INFO L125 PetriNetUnfolderBase]: For 498624/520396 co-relation queries the response was YES. [2023-12-09 15:10:25,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106437 conditions, 4696 events. 1014/4696 cut-off events. For 498624/520396 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 48829 event pairs, 150 based on Foata normal form. 5/4594 useless extension candidates. Maximal degree in co-relation 73746. Up to 2377 conditions per place. [2023-12-09 15:10:25,342 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 279 selfloop transitions, 48 changer transitions 1438/1934 dead transitions. [2023-12-09 15:10:25,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 989 places, 1934 transitions, 140796 flow [2023-12-09 15:10:25,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:10:25,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:10:25,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2595 transitions. [2023-12-09 15:10:25,344 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7372159090909091 [2023-12-09 15:10:25,344 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2595 transitions. [2023-12-09 15:10:25,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2595 transitions. [2023-12-09 15:10:25,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:25,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2595 transitions. [2023-12-09 15:10:25,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 129.75) internal successors, (2595), 20 states have internal predecessors, (2595), 0 states have call successors, (0), 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 15:10:25,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:10:25,347 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:10:25,348 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 830 predicate places. [2023-12-09 15:10:25,348 INFO L500 AbstractCegarLoop]: Abstraction has has 989 places, 1934 transitions, 140796 flow [2023-12-09 15:10:25,348 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:25,348 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:25,348 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:25,348 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-09 15:10:25,348 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 15:10:25,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:25,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1079201042, now seen corresponding path program 3 times [2023-12-09 15:10:25,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:25,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445136129] [2023-12-09 15:10:25,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:25,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:25,569 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 15:10:25,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:25,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445136129] [2023-12-09 15:10:25,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445136129] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:25,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:25,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:25,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610412908] [2023-12-09 15:10:25,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:25,570 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:25,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:25,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:25,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:25,571 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:25,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 989 places, 1934 transitions, 140796 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:25,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:25,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:25,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:28,778 INFO L124 PetriNetUnfolderBase]: 1032/4815 cut-off events. [2023-12-09 15:10:28,779 INFO L125 PetriNetUnfolderBase]: For 512610/535441 co-relation queries the response was YES. [2023-12-09 15:10:28,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111525 conditions, 4815 events. 1032/4815 cut-off events. For 512610/535441 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 50536 event pairs, 159 based on Foata normal form. 11/4715 useless extension candidates. Maximal degree in co-relation 77132. Up to 2401 conditions per place. [2023-12-09 15:10:28,955 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 308 selfloop transitions, 42 changer transitions 1491/2012 dead transitions. [2023-12-09 15:10:28,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1020 places, 2012 transitions, 149992 flow [2023-12-09 15:10:28,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-09 15:10:28,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-12-09 15:10:28,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 4132 transitions. [2023-12-09 15:10:28,957 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7336647727272727 [2023-12-09 15:10:28,957 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 4132 transitions. [2023-12-09 15:10:28,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 4132 transitions. [2023-12-09 15:10:28,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:28,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 4132 transitions. [2023-12-09 15:10:28,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 129.125) internal successors, (4132), 32 states have internal predecessors, (4132), 0 states have call successors, (0), 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 15:10:28,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 176.0) internal successors, (5808), 33 states have internal predecessors, (5808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:10:28,963 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 176.0) internal successors, (5808), 33 states have internal predecessors, (5808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:10:28,965 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 861 predicate places. [2023-12-09 15:10:28,965 INFO L500 AbstractCegarLoop]: Abstraction has has 1020 places, 2012 transitions, 149992 flow [2023-12-09 15:10:28,966 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:28,966 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:28,966 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:28,966 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-09 15:10:28,966 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 15:10:28,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:28,966 INFO L85 PathProgramCache]: Analyzing trace with hash 2145372884, now seen corresponding path program 4 times [2023-12-09 15:10:28,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:28,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872251737] [2023-12-09 15:10:28,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:28,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:29,075 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 15:10:29,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:29,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872251737] [2023-12-09 15:10:29,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872251737] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:29,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:29,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:29,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473161308] [2023-12-09 15:10:29,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:29,076 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:29,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:29,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:29,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:29,077 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:29,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1020 places, 2012 transitions, 149992 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:29,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:29,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:29,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:32,439 INFO L124 PetriNetUnfolderBase]: 1037/4822 cut-off events. [2023-12-09 15:10:32,439 INFO L125 PetriNetUnfolderBase]: For 535819/556522 co-relation queries the response was YES. [2023-12-09 15:10:32,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115378 conditions, 4822 events. 1037/4822 cut-off events. For 535819/556522 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 50619 event pairs, 157 based on Foata normal form. 25/4739 useless extension candidates. Maximal degree in co-relation 79290. Up to 2428 conditions per place. [2023-12-09 15:10:32,488 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 305 selfloop transitions, 41 changer transitions 1543/2058 dead transitions. [2023-12-09 15:10:32,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1048 places, 2058 transitions, 156888 flow [2023-12-09 15:10:32,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-09 15:10:32,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-12-09 15:10:32,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3731 transitions. [2023-12-09 15:10:32,490 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7309952978056427 [2023-12-09 15:10:32,490 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 3731 transitions. [2023-12-09 15:10:32,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 3731 transitions. [2023-12-09 15:10:32,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:32,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 3731 transitions. [2023-12-09 15:10:32,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 128.6551724137931) internal successors, (3731), 29 states have internal predecessors, (3731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:10:32,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 176.0) internal successors, (5280), 30 states have internal predecessors, (5280), 0 states have call successors, (0), 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 15:10:32,495 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 176.0) internal successors, (5280), 30 states have internal predecessors, (5280), 0 states have call successors, (0), 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 15:10:32,495 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 889 predicate places. [2023-12-09 15:10:32,495 INFO L500 AbstractCegarLoop]: Abstraction has has 1048 places, 2058 transitions, 156888 flow [2023-12-09 15:10:32,495 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:32,495 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:32,496 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:32,496 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-09 15:10:32,496 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 15:10:32,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:32,496 INFO L85 PathProgramCache]: Analyzing trace with hash 376713306, now seen corresponding path program 5 times [2023-12-09 15:10:32,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:32,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635548392] [2023-12-09 15:10:32,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:32,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:32,684 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 15:10:32,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:32,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635548392] [2023-12-09 15:10:32,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635548392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:32,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:32,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:32,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880958123] [2023-12-09 15:10:32,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:32,685 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:32,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:32,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:32,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:32,686 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:32,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1048 places, 2058 transitions, 156888 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:32,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:32,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:32,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:36,145 INFO L124 PetriNetUnfolderBase]: 1040/4941 cut-off events. [2023-12-09 15:10:36,145 INFO L125 PetriNetUnfolderBase]: For 566254/585330 co-relation queries the response was YES. [2023-12-09 15:10:36,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119548 conditions, 4941 events. 1040/4941 cut-off events. For 566254/585330 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 52423 event pairs, 164 based on Foata normal form. 10/4844 useless extension candidates. Maximal degree in co-relation 82031. Up to 2460 conditions per place. [2023-12-09 15:10:36,195 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 301 selfloop transitions, 27 changer transitions 1586/2083 dead transitions. [2023-12-09 15:10:36,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1066 places, 2083 transitions, 162336 flow [2023-12-09 15:10:36,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:10:36,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:10:36,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2465 transitions. [2023-12-09 15:10:36,197 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7371411483253588 [2023-12-09 15:10:36,197 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2465 transitions. [2023-12-09 15:10:36,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2465 transitions. [2023-12-09 15:10:36,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:36,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2465 transitions. [2023-12-09 15:10:36,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 129.73684210526315) internal successors, (2465), 19 states have internal predecessors, (2465), 0 states have call successors, (0), 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 15:10:36,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 176.0) internal successors, (3520), 20 states have internal predecessors, (3520), 0 states have call successors, (0), 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 15:10:36,200 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 176.0) internal successors, (3520), 20 states have internal predecessors, (3520), 0 states have call successors, (0), 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 15:10:36,201 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 907 predicate places. [2023-12-09 15:10:36,201 INFO L500 AbstractCegarLoop]: Abstraction has has 1066 places, 2083 transitions, 162336 flow [2023-12-09 15:10:36,201 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:36,201 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:36,201 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:36,201 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-09 15:10:36,201 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 15:10:36,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:36,201 INFO L85 PathProgramCache]: Analyzing trace with hash 23928326, now seen corresponding path program 6 times [2023-12-09 15:10:36,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:36,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418602046] [2023-12-09 15:10:36,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:36,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:36,305 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 15:10:36,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:36,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418602046] [2023-12-09 15:10:36,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418602046] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:36,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:36,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:36,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018537783] [2023-12-09 15:10:36,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:36,308 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:36,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:36,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:36,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:36,309 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:36,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1066 places, 2083 transitions, 162336 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:36,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:36,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:36,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:40,040 INFO L124 PetriNetUnfolderBase]: 1059/4989 cut-off events. [2023-12-09 15:10:40,040 INFO L125 PetriNetUnfolderBase]: For 587564/606910 co-relation queries the response was YES. [2023-12-09 15:10:40,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124831 conditions, 4989 events. 1059/4989 cut-off events. For 587564/606910 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 53022 event pairs, 155 based on Foata normal form. 22/4903 useless extension candidates. Maximal degree in co-relation 105472. Up to 2482 conditions per place. [2023-12-09 15:10:40,100 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 298 selfloop transitions, 45 changer transitions 1641/2153 dead transitions. [2023-12-09 15:10:40,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1096 places, 2153 transitions, 171274 flow [2023-12-09 15:10:40,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-09 15:10:40,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2023-12-09 15:10:40,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 4002 transitions. [2023-12-09 15:10:40,102 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7335043988269795 [2023-12-09 15:10:40,102 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 4002 transitions. [2023-12-09 15:10:40,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 4002 transitions. [2023-12-09 15:10:40,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:40,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 4002 transitions. [2023-12-09 15:10:40,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 129.09677419354838) internal successors, (4002), 31 states have internal predecessors, (4002), 0 states have call successors, (0), 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 15:10:40,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 176.0) internal successors, (5632), 32 states have internal predecessors, (5632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:10:40,108 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 176.0) internal successors, (5632), 32 states have internal predecessors, (5632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:10:40,108 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 937 predicate places. [2023-12-09 15:10:40,108 INFO L500 AbstractCegarLoop]: Abstraction has has 1096 places, 2153 transitions, 171274 flow [2023-12-09 15:10:40,108 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:40,108 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:40,108 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:40,108 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-09 15:10:40,108 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 15:10:40,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:40,109 INFO L85 PathProgramCache]: Analyzing trace with hash -215415158, now seen corresponding path program 7 times [2023-12-09 15:10:40,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:40,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529009738] [2023-12-09 15:10:40,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:40,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:40,336 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 15:10:40,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:40,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529009738] [2023-12-09 15:10:40,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529009738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:40,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:40,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:40,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043810860] [2023-12-09 15:10:40,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:40,337 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:40,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:40,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:40,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:40,338 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:40,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1096 places, 2153 transitions, 171274 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:40,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:40,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:40,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:44,403 INFO L124 PetriNetUnfolderBase]: 1097/5028 cut-off events. [2023-12-09 15:10:44,404 INFO L125 PetriNetUnfolderBase]: For 618039/642678 co-relation queries the response was YES. [2023-12-09 15:10:44,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131507 conditions, 5028 events. 1097/5028 cut-off events. For 618039/642678 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 53238 event pairs, 183 based on Foata normal form. 7/4924 useless extension candidates. Maximal degree in co-relation 90552. Up to 2506 conditions per place. [2023-12-09 15:10:44,463 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 334 selfloop transitions, 56 changer transitions 1682/2241 dead transitions. [2023-12-09 15:10:44,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1118 places, 2241 transitions, 182414 flow [2023-12-09 15:10:44,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:10:44,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:10:44,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2975 transitions. [2023-12-09 15:10:44,465 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7349308300395256 [2023-12-09 15:10:44,466 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2975 transitions. [2023-12-09 15:10:44,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2975 transitions. [2023-12-09 15:10:44,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:44,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2975 transitions. [2023-12-09 15:10:44,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 129.34782608695653) internal successors, (2975), 23 states have internal predecessors, (2975), 0 states have call successors, (0), 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 15:10:44,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 176.0) internal successors, (4224), 24 states have internal predecessors, (4224), 0 states have call successors, (0), 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 15:10:44,469 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 176.0) internal successors, (4224), 24 states have internal predecessors, (4224), 0 states have call successors, (0), 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 15:10:44,470 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 959 predicate places. [2023-12-09 15:10:44,470 INFO L500 AbstractCegarLoop]: Abstraction has has 1118 places, 2241 transitions, 182414 flow [2023-12-09 15:10:44,470 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:44,470 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:44,470 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:44,470 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-09 15:10:44,470 INFO L425 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:44,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:44,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1962487780, now seen corresponding path program 8 times [2023-12-09 15:10:44,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:44,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992897552] [2023-12-09 15:10:44,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:44,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:44,585 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 15:10:44,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:44,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992897552] [2023-12-09 15:10:44,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992897552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:44,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:44,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:44,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215645604] [2023-12-09 15:10:44,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:44,586 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:44,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:44,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:44,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:44,587 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:44,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1118 places, 2241 transitions, 182414 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:44,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:44,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:44,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:49,259 INFO L124 PetriNetUnfolderBase]: 1114/5231 cut-off events. [2023-12-09 15:10:49,259 INFO L125 PetriNetUnfolderBase]: For 662463/683694 co-relation queries the response was YES. [2023-12-09 15:10:49,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137249 conditions, 5231 events. 1114/5231 cut-off events. For 662463/683694 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 56204 event pairs, 175 based on Foata normal form. 7/5127 useless extension candidates. Maximal degree in co-relation 107080. Up to 2547 conditions per place. [2023-12-09 15:10:49,321 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 336 selfloop transitions, 52 changer transitions 1725/2282 dead transitions. [2023-12-09 15:10:49,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1140 places, 2282 transitions, 189806 flow [2023-12-09 15:10:49,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:10:49,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:10:49,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2972 transitions. [2023-12-09 15:10:49,324 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7341897233201581 [2023-12-09 15:10:49,324 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2972 transitions. [2023-12-09 15:10:49,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2972 transitions. [2023-12-09 15:10:49,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:49,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2972 transitions. [2023-12-09 15:10:49,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 129.2173913043478) internal successors, (2972), 23 states have internal predecessors, (2972), 0 states have call successors, (0), 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 15:10:49,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 176.0) internal successors, (4224), 24 states have internal predecessors, (4224), 0 states have call successors, (0), 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 15:10:49,328 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 176.0) internal successors, (4224), 24 states have internal predecessors, (4224), 0 states have call successors, (0), 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 15:10:49,328 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 981 predicate places. [2023-12-09 15:10:49,328 INFO L500 AbstractCegarLoop]: Abstraction has has 1140 places, 2282 transitions, 189806 flow [2023-12-09 15:10:49,329 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:49,329 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:49,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:49,329 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-09 15:10:49,329 INFO L425 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:49,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:49,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1332336458, now seen corresponding path program 9 times [2023-12-09 15:10:49,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:49,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865214390] [2023-12-09 15:10:49,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:49,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:49,443 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 15:10:49,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:49,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865214390] [2023-12-09 15:10:49,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865214390] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:49,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:49,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:49,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88807921] [2023-12-09 15:10:49,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:49,444 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:49,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:49,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:49,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:49,447 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:49,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1140 places, 2282 transitions, 189806 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:49,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:49,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:49,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:54,345 INFO L124 PetriNetUnfolderBase]: 1130/5293 cut-off events. [2023-12-09 15:10:54,346 INFO L125 PetriNetUnfolderBase]: For 684791/708458 co-relation queries the response was YES. [2023-12-09 15:10:54,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142638 conditions, 5293 events. 1130/5293 cut-off events. For 684791/708458 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 57103 event pairs, 180 based on Foata normal form. 10/5190 useless extension candidates. Maximal degree in co-relation 97977. Up to 2570 conditions per place. [2023-12-09 15:10:54,410 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 336 selfloop transitions, 55 changer transitions 1766/2326 dead transitions. [2023-12-09 15:10:54,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1161 places, 2326 transitions, 197524 flow [2023-12-09 15:10:54,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:10:54,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:10:54,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2847 transitions. [2023-12-09 15:10:54,413 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7352789256198347 [2023-12-09 15:10:54,413 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2847 transitions. [2023-12-09 15:10:54,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2847 transitions. [2023-12-09 15:10:54,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:54,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2847 transitions. [2023-12-09 15:10:54,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 129.4090909090909) internal successors, (2847), 22 states have internal predecessors, (2847), 0 states have call successors, (0), 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 15:10:54,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 176.0) internal successors, (4048), 23 states have internal predecessors, (4048), 0 states have call successors, (0), 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 15:10:54,417 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 176.0) internal successors, (4048), 23 states have internal predecessors, (4048), 0 states have call successors, (0), 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 15:10:54,417 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1002 predicate places. [2023-12-09 15:10:54,417 INFO L500 AbstractCegarLoop]: Abstraction has has 1161 places, 2326 transitions, 197524 flow [2023-12-09 15:10:54,417 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:54,417 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:54,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:54,418 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-09 15:10:54,418 INFO L425 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:54,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:54,418 INFO L85 PathProgramCache]: Analyzing trace with hash -538652526, now seen corresponding path program 10 times [2023-12-09 15:10:54,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:54,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149314470] [2023-12-09 15:10:54,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:54,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:54,520 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 15:10:54,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:54,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149314470] [2023-12-09 15:10:54,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149314470] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:54,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:54,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:54,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803657558] [2023-12-09 15:10:54,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:54,520 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:54,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:54,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:54,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:54,522 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:54,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1161 places, 2326 transitions, 197524 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:54,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:54,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:54,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:59,597 INFO L124 PetriNetUnfolderBase]: 1138/5321 cut-off events. [2023-12-09 15:10:59,598 INFO L125 PetriNetUnfolderBase]: For 703915/726495 co-relation queries the response was YES. [2023-12-09 15:10:59,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147143 conditions, 5321 events. 1138/5321 cut-off events. For 703915/726495 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 57396 event pairs, 180 based on Foata normal form. 7/5214 useless extension candidates. Maximal degree in co-relation 123748. Up to 2597 conditions per place. [2023-12-09 15:10:59,659 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 334 selfloop transitions, 44 changer transitions 1806/2353 dead transitions. [2023-12-09 15:10:59,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1181 places, 2353 transitions, 203995 flow [2023-12-09 15:10:59,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 15:10:59,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 15:10:59,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2719 transitions. [2023-12-09 15:10:59,661 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7356601731601732 [2023-12-09 15:10:59,661 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2719 transitions. [2023-12-09 15:10:59,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2719 transitions. [2023-12-09 15:10:59,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:59,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2719 transitions. [2023-12-09 15:10:59,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 129.47619047619048) internal successors, (2719), 21 states have internal predecessors, (2719), 0 states have call successors, (0), 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 15:10:59,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 176.0) internal successors, (3872), 22 states have internal predecessors, (3872), 0 states have call successors, (0), 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 15:10:59,665 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 176.0) internal successors, (3872), 22 states have internal predecessors, (3872), 0 states have call successors, (0), 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 15:10:59,665 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1022 predicate places. [2023-12-09 15:10:59,665 INFO L500 AbstractCegarLoop]: Abstraction has has 1181 places, 2353 transitions, 203995 flow [2023-12-09 15:10:59,665 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:59,665 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:59,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:10:59,665 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-09 15:10:59,665 INFO L425 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:10:59,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:59,666 INFO L85 PathProgramCache]: Analyzing trace with hash -624924548, now seen corresponding path program 11 times [2023-12-09 15:10:59,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:59,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132422778] [2023-12-09 15:10:59,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:59,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:59,780 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 15:10:59,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:59,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132422778] [2023-12-09 15:10:59,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132422778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:59,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:59,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:10:59,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199133919] [2023-12-09 15:10:59,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:59,781 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:10:59,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:59,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:10:59,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:10:59,782 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:10:59,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1181 places, 2353 transitions, 203995 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:10:59,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:59,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:10:59,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:05,195 INFO L124 PetriNetUnfolderBase]: 1144/5505 cut-off events. [2023-12-09 15:11:05,195 INFO L125 PetriNetUnfolderBase]: For 768177/787886 co-relation queries the response was YES. [2023-12-09 15:11:05,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151587 conditions, 5505 events. 1144/5505 cut-off events. For 768177/787886 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 60215 event pairs, 158 based on Foata normal form. 7/5397 useless extension candidates. Maximal degree in co-relation 120855. Up to 2623 conditions per place. [2023-12-09 15:11:05,259 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 321 selfloop transitions, 42 changer transitions 1843/2377 dead transitions. [2023-12-09 15:11:05,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1200 places, 2377 transitions, 210288 flow [2023-12-09 15:11:05,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:11:05,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:11:05,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2595 transitions. [2023-12-09 15:11:05,260 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7372159090909091 [2023-12-09 15:11:05,260 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2595 transitions. [2023-12-09 15:11:05,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2595 transitions. [2023-12-09 15:11:05,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:05,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2595 transitions. [2023-12-09 15:11:05,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 129.75) internal successors, (2595), 20 states have internal predecessors, (2595), 0 states have call successors, (0), 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 15:11:05,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:11:05,264 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:11:05,264 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1041 predicate places. [2023-12-09 15:11:05,264 INFO L500 AbstractCegarLoop]: Abstraction has has 1200 places, 2377 transitions, 210288 flow [2023-12-09 15:11:05,265 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:11:05,265 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:05,265 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:11:05,265 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-09 15:11:05,265 INFO L425 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:11:05,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:05,265 INFO L85 PathProgramCache]: Analyzing trace with hash 70589398, now seen corresponding path program 12 times [2023-12-09 15:11:05,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:05,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589328604] [2023-12-09 15:11:05,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:05,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:05,391 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 15:11:05,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:05,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589328604] [2023-12-09 15:11:05,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589328604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:05,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:05,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:11:05,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677795077] [2023-12-09 15:11:05,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:05,392 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:11:05,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:05,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:11:05,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:11:05,393 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:11:05,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1200 places, 2377 transitions, 210288 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:11:05,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:05,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:11:05,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:10,713 INFO L124 PetriNetUnfolderBase]: 1152/5505 cut-off events. [2023-12-09 15:11:10,713 INFO L125 PetriNetUnfolderBase]: For 803522/825244 co-relation queries the response was YES. [2023-12-09 15:11:10,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156159 conditions, 5505 events. 1152/5505 cut-off events. For 803522/825244 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 60167 event pairs, 171 based on Foata normal form. 16/5405 useless extension candidates. Maximal degree in co-relation 130602. Up to 2641 conditions per place. [2023-12-09 15:11:10,791 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 317 selfloop transitions, 25 changer transitions 1896/2407 dead transitions. [2023-12-09 15:11:10,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1227 places, 2407 transitions, 217102 flow [2023-12-09 15:11:10,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-09 15:11:10,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-12-09 15:11:10,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3608 transitions. [2023-12-09 15:11:10,793 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7321428571428571 [2023-12-09 15:11:10,793 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3608 transitions. [2023-12-09 15:11:10,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3608 transitions. [2023-12-09 15:11:10,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:10,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3608 transitions. [2023-12-09 15:11:10,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 128.85714285714286) internal successors, (3608), 28 states have internal predecessors, (3608), 0 states have call successors, (0), 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 15:11:10,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 176.0) internal successors, (5104), 29 states have internal predecessors, (5104), 0 states have call successors, (0), 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 15:11:10,798 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 176.0) internal successors, (5104), 29 states have internal predecessors, (5104), 0 states have call successors, (0), 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 15:11:10,798 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1068 predicate places. [2023-12-09 15:11:10,798 INFO L500 AbstractCegarLoop]: Abstraction has has 1227 places, 2407 transitions, 217102 flow [2023-12-09 15:11:10,799 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:11:10,799 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:10,799 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:11:10,799 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-09 15:11:10,799 INFO L425 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:11:10,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:10,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1675819402, now seen corresponding path program 13 times [2023-12-09 15:11:10,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:10,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487700714] [2023-12-09 15:11:10,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:10,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:11,081 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 15:11:11,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:11,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487700714] [2023-12-09 15:11:11,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487700714] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:11,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:11,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:11:11,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880561308] [2023-12-09 15:11:11,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:11,082 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:11:11,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:11,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:11:11,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:11:11,083 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:11:11,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1227 places, 2407 transitions, 217102 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:11:11,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:11,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:11:11,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:16,718 INFO L124 PetriNetUnfolderBase]: 1200/5656 cut-off events. [2023-12-09 15:11:16,719 INFO L125 PetriNetUnfolderBase]: For 849071/873321 co-relation queries the response was YES. [2023-12-09 15:11:16,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164990 conditions, 5656 events. 1200/5656 cut-off events. For 849071/873321 co-relation queries the response was YES. Maximal size of possible extension queue 361. Compared 61972 event pairs, 175 based on Foata normal form. 7/5544 useless extension candidates. Maximal degree in co-relation 128601. Up to 2676 conditions per place. [2023-12-09 15:11:16,786 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 359 selfloop transitions, 51 changer transitions 1934/2513 dead transitions. [2023-12-09 15:11:16,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1247 places, 2513 transitions, 231416 flow [2023-12-09 15:11:16,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 15:11:16,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 15:11:16,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2722 transitions. [2023-12-09 15:11:16,788 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7364718614718615 [2023-12-09 15:11:16,788 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2722 transitions. [2023-12-09 15:11:16,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2722 transitions. [2023-12-09 15:11:16,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:16,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2722 transitions. [2023-12-09 15:11:16,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 129.61904761904762) internal successors, (2722), 21 states have internal predecessors, (2722), 0 states have call successors, (0), 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 15:11:16,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 176.0) internal successors, (3872), 22 states have internal predecessors, (3872), 0 states have call successors, (0), 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 15:11:16,792 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 176.0) internal successors, (3872), 22 states have internal predecessors, (3872), 0 states have call successors, (0), 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 15:11:16,792 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1088 predicate places. [2023-12-09 15:11:16,792 INFO L500 AbstractCegarLoop]: Abstraction has has 1247 places, 2513 transitions, 231416 flow [2023-12-09 15:11:16,793 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:11:16,793 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:16,793 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:11:16,793 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-09 15:11:16,793 INFO L425 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:11:16,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:16,793 INFO L85 PathProgramCache]: Analyzing trace with hash 145058840, now seen corresponding path program 14 times [2023-12-09 15:11:16,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:16,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786685305] [2023-12-09 15:11:16,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:16,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:16,901 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 15:11:16,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:16,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786685305] [2023-12-09 15:11:16,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786685305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:16,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:16,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:11:16,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56331680] [2023-12-09 15:11:16,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:16,902 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:11:16,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:16,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:11:16,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:11:16,903 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:11:16,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1247 places, 2513 transitions, 231416 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:11:16,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:16,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:11:16,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:23,417 INFO L124 PetriNetUnfolderBase]: 1211/5688 cut-off events. [2023-12-09 15:11:23,417 INFO L125 PetriNetUnfolderBase]: For 869189/894764 co-relation queries the response was YES. [2023-12-09 15:11:23,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170088 conditions, 5688 events. 1211/5688 cut-off events. For 869189/894764 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 62277 event pairs, 192 based on Foata normal form. 13/5580 useless extension candidates. Maximal degree in co-relation 115912. Up to 2696 conditions per place. [2023-12-09 15:11:23,489 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 357 selfloop transitions, 46 changer transitions 1974/2548 dead transitions. [2023-12-09 15:11:23,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1267 places, 2548 transitions, 239124 flow [2023-12-09 15:11:23,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 15:11:23,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 15:11:23,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2724 transitions. [2023-12-09 15:11:23,490 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.737012987012987 [2023-12-09 15:11:23,491 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2724 transitions. [2023-12-09 15:11:23,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2724 transitions. [2023-12-09 15:11:23,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:23,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2724 transitions. [2023-12-09 15:11:23,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 129.71428571428572) internal successors, (2724), 21 states have internal predecessors, (2724), 0 states have call successors, (0), 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 15:11:23,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 176.0) internal successors, (3872), 22 states have internal predecessors, (3872), 0 states have call successors, (0), 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 15:11:23,494 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 176.0) internal successors, (3872), 22 states have internal predecessors, (3872), 0 states have call successors, (0), 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 15:11:23,495 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1108 predicate places. [2023-12-09 15:11:23,495 INFO L500 AbstractCegarLoop]: Abstraction has has 1267 places, 2548 transitions, 239124 flow [2023-12-09 15:11:23,495 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:11:23,495 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:23,495 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:11:23,495 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-09 15:11:23,495 INFO L425 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:11:23,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:23,495 INFO L85 PathProgramCache]: Analyzing trace with hash -369145836, now seen corresponding path program 15 times [2023-12-09 15:11:23,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:23,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634747629] [2023-12-09 15:11:23,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:23,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:23,598 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 15:11:23,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:23,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634747629] [2023-12-09 15:11:23,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634747629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:23,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:23,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:11:23,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833695977] [2023-12-09 15:11:23,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:23,599 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:11:23,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:23,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:11:23,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:11:23,600 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:11:23,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1267 places, 2548 transitions, 239124 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:11:23,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:23,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:11:23,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:30,161 INFO L124 PetriNetUnfolderBase]: 1227/5781 cut-off events. [2023-12-09 15:11:30,161 INFO L125 PetriNetUnfolderBase]: For 913301/940682 co-relation queries the response was YES. [2023-12-09 15:11:30,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175991 conditions, 5781 events. 1227/5781 cut-off events. For 913301/940682 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 63378 event pairs, 188 based on Foata normal form. 7/5658 useless extension candidates. Maximal degree in co-relation 119850. Up to 2719 conditions per place. [2023-12-09 15:11:30,238 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 360 selfloop transitions, 41 changer transitions 2020/2590 dead transitions. [2023-12-09 15:11:30,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1291 places, 2590 transitions, 247808 flow [2023-12-09 15:11:30,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-09 15:11:30,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-12-09 15:11:30,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3228 transitions. [2023-12-09 15:11:30,240 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7336363636363636 [2023-12-09 15:11:30,241 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3228 transitions. [2023-12-09 15:11:30,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3228 transitions. [2023-12-09 15:11:30,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:30,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3228 transitions. [2023-12-09 15:11:30,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 129.12) internal successors, (3228), 25 states have internal predecessors, (3228), 0 states have call successors, (0), 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 15:11:30,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 176.0) internal successors, (4576), 26 states have internal predecessors, (4576), 0 states have call successors, (0), 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 15:11:30,245 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 176.0) internal successors, (4576), 26 states have internal predecessors, (4576), 0 states have call successors, (0), 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 15:11:30,245 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1132 predicate places. [2023-12-09 15:11:30,245 INFO L500 AbstractCegarLoop]: Abstraction has has 1291 places, 2590 transitions, 247808 flow [2023-12-09 15:11:30,245 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:11:30,245 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:30,245 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:11:30,246 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-09 15:11:30,246 INFO L425 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:11:30,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:30,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1181091232, now seen corresponding path program 16 times [2023-12-09 15:11:30,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:30,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660515554] [2023-12-09 15:11:30,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:30,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:30,460 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 15:11:30,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:30,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660515554] [2023-12-09 15:11:30,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660515554] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:30,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:30,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:11:30,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482791972] [2023-12-09 15:11:30,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:30,461 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:11:30,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:30,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:11:30,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:11:30,462 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:11:30,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1291 places, 2590 transitions, 247808 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:11:30,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:30,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:11:30,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:37,389 INFO L124 PetriNetUnfolderBase]: 1245/5828 cut-off events. [2023-12-09 15:11:37,389 INFO L125 PetriNetUnfolderBase]: For 990084/1021407 co-relation queries the response was YES. [2023-12-09 15:11:37,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182483 conditions, 5828 events. 1245/5828 cut-off events. For 990084/1021407 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 64338 event pairs, 192 based on Foata normal form. 17/5727 useless extension candidates. Maximal degree in co-relation 123788. Up to 2751 conditions per place. [2023-12-09 15:11:37,467 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 358 selfloop transitions, 42 changer transitions 2069/2638 dead transitions. [2023-12-09 15:11:37,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1317 places, 2638 transitions, 257299 flow [2023-12-09 15:11:37,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-09 15:11:37,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-12-09 15:11:37,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3485 transitions. [2023-12-09 15:11:37,469 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7333754208754208 [2023-12-09 15:11:37,469 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 3485 transitions. [2023-12-09 15:11:37,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 3485 transitions. [2023-12-09 15:11:37,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:37,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 3485 transitions. [2023-12-09 15:11:37,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 129.07407407407408) internal successors, (3485), 27 states have internal predecessors, (3485), 0 states have call successors, (0), 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 15:11:37,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 176.0) internal successors, (4928), 28 states have internal predecessors, (4928), 0 states have call successors, (0), 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 15:11:37,473 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 176.0) internal successors, (4928), 28 states have internal predecessors, (4928), 0 states have call successors, (0), 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 15:11:37,474 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1158 predicate places. [2023-12-09 15:11:37,474 INFO L500 AbstractCegarLoop]: Abstraction has has 1317 places, 2638 transitions, 257299 flow [2023-12-09 15:11:37,474 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:11:37,474 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:37,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:11:37,474 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-09 15:11:37,474 INFO L425 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:11:37,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:37,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1092850358, now seen corresponding path program 17 times [2023-12-09 15:11:37,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:37,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217802806] [2023-12-09 15:11:37,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:37,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:37,572 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 15:11:37,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:37,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217802806] [2023-12-09 15:11:37,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217802806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:37,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:37,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:11:37,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785823309] [2023-12-09 15:11:37,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:37,573 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:11:37,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:37,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:11:37,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:11:37,574 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:11:37,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1317 places, 2638 transitions, 257299 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:11:37,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:37,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:11:37,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:45,241 INFO L124 PetriNetUnfolderBase]: 1261/5986 cut-off events. [2023-12-09 15:11:45,242 INFO L125 PetriNetUnfolderBase]: For 1007167/1036722 co-relation queries the response was YES. [2023-12-09 15:11:45,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188718 conditions, 5986 events. 1261/5986 cut-off events. For 1007167/1036722 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 66412 event pairs, 187 based on Foata normal form. 10/5866 useless extension candidates. Maximal degree in co-relation 128063. Up to 2788 conditions per place. [2023-12-09 15:11:45,325 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 355 selfloop transitions, 32 changer transitions 2118/2674 dead transitions. [2023-12-09 15:11:45,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1343 places, 2674 transitions, 265666 flow [2023-12-09 15:11:45,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-09 15:11:45,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-12-09 15:11:45,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3479 transitions. [2023-12-09 15:11:45,327 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7321127946127947 [2023-12-09 15:11:45,327 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 3479 transitions. [2023-12-09 15:11:45,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 3479 transitions. [2023-12-09 15:11:45,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:45,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 3479 transitions. [2023-12-09 15:11:45,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 128.85185185185185) internal successors, (3479), 27 states have internal predecessors, (3479), 0 states have call successors, (0), 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 15:11:45,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 176.0) internal successors, (4928), 28 states have internal predecessors, (4928), 0 states have call successors, (0), 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 15:11:45,332 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 176.0) internal successors, (4928), 28 states have internal predecessors, (4928), 0 states have call successors, (0), 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 15:11:45,332 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1184 predicate places. [2023-12-09 15:11:45,333 INFO L500 AbstractCegarLoop]: Abstraction has has 1343 places, 2674 transitions, 265666 flow [2023-12-09 15:11:45,333 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:11:45,333 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:45,333 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:11:45,333 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-09 15:11:45,333 INFO L425 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:11:45,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:45,333 INFO L85 PathProgramCache]: Analyzing trace with hash 949882802, now seen corresponding path program 18 times [2023-12-09 15:11:45,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:45,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134422460] [2023-12-09 15:11:45,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:45,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:45,447 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 15:11:45,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:45,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134422460] [2023-12-09 15:11:45,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134422460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:45,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:45,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:11:45,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107783793] [2023-12-09 15:11:45,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:45,448 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:11:45,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:45,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:11:45,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:11:45,449 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:11:45,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1343 places, 2674 transitions, 265666 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:11:45,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:45,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:11:45,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:53,637 INFO L124 PetriNetUnfolderBase]: 1280/6092 cut-off events. [2023-12-09 15:11:53,638 INFO L125 PetriNetUnfolderBase]: For 1077830/1107142 co-relation queries the response was YES. [2023-12-09 15:11:53,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195580 conditions, 6092 events. 1280/6092 cut-off events. For 1077830/1107142 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 68346 event pairs, 190 based on Foata normal form. 7/5975 useless extension candidates. Maximal degree in co-relation 152379. Up to 2819 conditions per place. [2023-12-09 15:11:53,717 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 357 selfloop transitions, 41 changer transitions 2159/2726 dead transitions. [2023-12-09 15:11:53,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1364 places, 2726 transitions, 275840 flow [2023-12-09 15:11:53,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:11:53,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:11:53,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2854 transitions. [2023-12-09 15:11:53,719 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7370867768595041 [2023-12-09 15:11:53,719 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2854 transitions. [2023-12-09 15:11:53,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2854 transitions. [2023-12-09 15:11:53,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:53,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2854 transitions. [2023-12-09 15:11:53,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 129.72727272727272) internal successors, (2854), 22 states have internal predecessors, (2854), 0 states have call successors, (0), 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 15:11:53,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 176.0) internal successors, (4048), 23 states have internal predecessors, (4048), 0 states have call successors, (0), 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 15:11:53,722 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 176.0) internal successors, (4048), 23 states have internal predecessors, (4048), 0 states have call successors, (0), 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 15:11:53,723 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1205 predicate places. [2023-12-09 15:11:53,723 INFO L500 AbstractCegarLoop]: Abstraction has has 1364 places, 2726 transitions, 275840 flow [2023-12-09 15:11:53,723 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:11:53,723 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:53,723 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:11:53,723 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-09 15:11:53,723 INFO L425 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:11:53,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:53,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1022015574, now seen corresponding path program 19 times [2023-12-09 15:11:53,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:53,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856670628] [2023-12-09 15:11:53,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:53,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:53,836 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 15:11:53,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:53,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856670628] [2023-12-09 15:11:53,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856670628] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:53,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:53,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:11:53,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623160445] [2023-12-09 15:11:53,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:53,837 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:11:53,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:53,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:11:53,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:11:53,838 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:11:53,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1364 places, 2726 transitions, 275840 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:11:53,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:53,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:11:53,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:12:02,177 INFO L124 PetriNetUnfolderBase]: 1294/6169 cut-off events. [2023-12-09 15:12:02,178 INFO L125 PetriNetUnfolderBase]: For 1145399/1173998 co-relation queries the response was YES. [2023-12-09 15:12:02,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201572 conditions, 6169 events. 1294/6169 cut-off events. For 1145399/1173998 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 69444 event pairs, 199 based on Foata normal form. 8/6051 useless extension candidates. Maximal degree in co-relation 156947. Up to 2850 conditions per place. [2023-12-09 15:12:02,277 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 359 selfloop transitions, 37 changer transitions 2198/2763 dead transitions. [2023-12-09 15:12:02,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1384 places, 2763 transitions, 284658 flow [2023-12-09 15:12:02,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 15:12:02,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 15:12:02,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2726 transitions. [2023-12-09 15:12:02,278 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7375541125541125 [2023-12-09 15:12:02,278 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2726 transitions. [2023-12-09 15:12:02,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2726 transitions. [2023-12-09 15:12:02,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:12:02,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2726 transitions. [2023-12-09 15:12:02,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 129.8095238095238) internal successors, (2726), 21 states have internal predecessors, (2726), 0 states have call successors, (0), 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 15:12:02,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 176.0) internal successors, (3872), 22 states have internal predecessors, (3872), 0 states have call successors, (0), 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 15:12:02,282 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 176.0) internal successors, (3872), 22 states have internal predecessors, (3872), 0 states have call successors, (0), 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 15:12:02,282 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1225 predicate places. [2023-12-09 15:12:02,282 INFO L500 AbstractCegarLoop]: Abstraction has has 1384 places, 2763 transitions, 284658 flow [2023-12-09 15:12:02,283 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:12:02,283 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:12:02,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:12:02,283 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-09 15:12:02,283 INFO L425 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:12:02,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:12:02,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1140156920, now seen corresponding path program 20 times [2023-12-09 15:12:02,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:12:02,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234677319] [2023-12-09 15:12:02,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:12:02,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:12:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:12:02,386 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 15:12:02,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:12:02,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234677319] [2023-12-09 15:12:02,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234677319] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:12:02,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:12:02,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:12:02,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403397111] [2023-12-09 15:12:02,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:12:02,387 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:12:02,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:12:02,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:12:02,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:12:02,388 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:12:02,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1384 places, 2763 transitions, 284658 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:12:02,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:12:02,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:12:02,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:12:11,241 INFO L124 PetriNetUnfolderBase]: 1302/6143 cut-off events. [2023-12-09 15:12:11,241 INFO L125 PetriNetUnfolderBase]: For 1169974/1198988 co-relation queries the response was YES. [2023-12-09 15:12:11,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206576 conditions, 6143 events. 1302/6143 cut-off events. For 1169974/1198988 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 68887 event pairs, 210 based on Foata normal form. 8/6025 useless extension candidates. Maximal degree in co-relation 139455. Up to 2872 conditions per place. [2023-12-09 15:12:11,327 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 348 selfloop transitions, 31 changer transitions 2242/2790 dead transitions. [2023-12-09 15:12:11,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1407 places, 2790 transitions, 292543 flow [2023-12-09 15:12:11,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-09 15:12:11,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-12-09 15:12:11,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3104 transitions. [2023-12-09 15:12:11,329 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7348484848484849 [2023-12-09 15:12:11,329 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3104 transitions. [2023-12-09 15:12:11,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3104 transitions. [2023-12-09 15:12:11,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:12:11,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3104 transitions. [2023-12-09 15:12:11,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 129.33333333333334) internal successors, (3104), 24 states have internal predecessors, (3104), 0 states have call successors, (0), 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 15:12:11,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 176.0) internal successors, (4400), 25 states have internal predecessors, (4400), 0 states have call successors, (0), 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 15:12:11,333 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 176.0) internal successors, (4400), 25 states have internal predecessors, (4400), 0 states have call successors, (0), 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 15:12:11,334 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1248 predicate places. [2023-12-09 15:12:11,334 INFO L500 AbstractCegarLoop]: Abstraction has has 1407 places, 2790 transitions, 292543 flow [2023-12-09 15:12:11,334 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:12:11,334 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:12:11,334 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:12:11,334 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-09 15:12:11,334 INFO L425 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:12:11,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:12:11,334 INFO L85 PathProgramCache]: Analyzing trace with hash -978459488, now seen corresponding path program 21 times [2023-12-09 15:12:11,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:12:11,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110280077] [2023-12-09 15:12:11,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:12:11,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:12:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:12:11,444 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 15:12:11,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:12:11,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110280077] [2023-12-09 15:12:11,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110280077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:12:11,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:12:11,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:12:11,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321056413] [2023-12-09 15:12:11,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:12:11,444 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:12:11,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:12:11,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:12:11,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:12:11,445 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:12:11,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1407 places, 2790 transitions, 292543 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:12:11,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:12:11,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:12:11,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:12:20,421 INFO L124 PetriNetUnfolderBase]: 1325/6381 cut-off events. [2023-12-09 15:12:20,421 INFO L125 PetriNetUnfolderBase]: For 1266954/1299144 co-relation queries the response was YES. [2023-12-09 15:12:20,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213338 conditions, 6381 events. 1325/6381 cut-off events. For 1266954/1299144 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 72412 event pairs, 181 based on Foata normal form. 7/6257 useless extension candidates. Maximal degree in co-relation 143788. Up to 2906 conditions per place. [2023-12-09 15:12:20,510 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 343 selfloop transitions, 30 changer transitions 2278/2822 dead transitions. [2023-12-09 15:12:20,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1426 places, 2822 transitions, 301059 flow [2023-12-09 15:12:20,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:12:20,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:12:20,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2598 transitions. [2023-12-09 15:12:20,512 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7380681818181818 [2023-12-09 15:12:20,512 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2598 transitions. [2023-12-09 15:12:20,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2598 transitions. [2023-12-09 15:12:20,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:12:20,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2598 transitions. [2023-12-09 15:12:20,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 129.9) internal successors, (2598), 20 states have internal predecessors, (2598), 0 states have call successors, (0), 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 15:12:20,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:12:20,516 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 0 states have call successors, (0), 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 15:12:20,516 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1267 predicate places. [2023-12-09 15:12:20,516 INFO L500 AbstractCegarLoop]: Abstraction has has 1426 places, 2822 transitions, 301059 flow [2023-12-09 15:12:20,516 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:12:20,516 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:12:20,516 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:12:20,516 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-12-09 15:12:20,517 INFO L425 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:12:20,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:12:20,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1262496844, now seen corresponding path program 22 times [2023-12-09 15:12:20,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:12:20,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795327497] [2023-12-09 15:12:20,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:12:20,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:12:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:12:20,626 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 15:12:20,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:12:20,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795327497] [2023-12-09 15:12:20,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795327497] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:12:20,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:12:20,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:12:20,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379031678] [2023-12-09 15:12:20,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:12:20,627 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:12:20,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:12:20,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:12:20,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:12:20,628 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:12:20,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1426 places, 2822 transitions, 301059 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:12:20,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:12:20,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:12:20,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:12:30,807 INFO L124 PetriNetUnfolderBase]: 1324/6369 cut-off events. [2023-12-09 15:12:30,807 INFO L125 PetriNetUnfolderBase]: For 1328493/1364324 co-relation queries the response was YES. [2023-12-09 15:12:30,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217615 conditions, 6369 events. 1324/6369 cut-off events. For 1328493/1364324 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 71988 event pairs, 194 based on Foata normal form. 7/6234 useless extension candidates. Maximal degree in co-relation 146086. Up to 2911 conditions per place. [2023-12-09 15:12:30,896 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 331 selfloop transitions, 10 changer transitions 2327/2835 dead transitions. [2023-12-09 15:12:30,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1448 places, 2835 transitions, 307661 flow [2023-12-09 15:12:30,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:12:30,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:12:30,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2978 transitions. [2023-12-09 15:12:30,898 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7356719367588933 [2023-12-09 15:12:30,898 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2978 transitions. [2023-12-09 15:12:30,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2978 transitions. [2023-12-09 15:12:30,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:12:30,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2978 transitions. [2023-12-09 15:12:30,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 129.47826086956522) internal successors, (2978), 23 states have internal predecessors, (2978), 0 states have call successors, (0), 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 15:12:30,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 176.0) internal successors, (4224), 24 states have internal predecessors, (4224), 0 states have call successors, (0), 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 15:12:30,902 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 176.0) internal successors, (4224), 24 states have internal predecessors, (4224), 0 states have call successors, (0), 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 15:12:30,902 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1289 predicate places. [2023-12-09 15:12:30,902 INFO L500 AbstractCegarLoop]: Abstraction has has 1448 places, 2835 transitions, 307661 flow [2023-12-09 15:12:30,902 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:12:30,902 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:12:30,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:12:30,903 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-12-09 15:12:30,903 INFO L425 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:12:30,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:12:30,903 INFO L85 PathProgramCache]: Analyzing trace with hash 664969192, now seen corresponding path program 23 times [2023-12-09 15:12:30,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:12:30,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352932345] [2023-12-09 15:12:30,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:12:30,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:12:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:12:30,999 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 15:12:30,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:12:30,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352932345] [2023-12-09 15:12:31,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352932345] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:12:31,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:12:31,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:12:31,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043079790] [2023-12-09 15:12:31,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:12:31,000 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:12:31,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:12:31,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:12:31,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:12:31,001 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:12:31,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1448 places, 2835 transitions, 307661 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:12:31,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:12:31,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:12:31,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:12:41,263 INFO L124 PetriNetUnfolderBase]: 1336/6425 cut-off events. [2023-12-09 15:12:41,264 INFO L125 PetriNetUnfolderBase]: For 1337550/1369769 co-relation queries the response was YES. [2023-12-09 15:12:41,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224714 conditions, 6425 events. 1336/6425 cut-off events. For 1337550/1369769 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 73009 event pairs, 215 based on Foata normal form. 22/6310 useless extension candidates. Maximal degree in co-relation 151125. Up to 2946 conditions per place. [2023-12-09 15:12:41,357 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 308 selfloop transitions, 47 changer transitions 2366/2892 dead transitions. [2023-12-09 15:12:41,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1472 places, 2892 transitions, 319379 flow [2023-12-09 15:12:41,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-09 15:12:41,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-12-09 15:12:41,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3225 transitions. [2023-12-09 15:12:41,359 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7329545454545454 [2023-12-09 15:12:41,359 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3225 transitions. [2023-12-09 15:12:41,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3225 transitions. [2023-12-09 15:12:41,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:12:41,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3225 transitions. [2023-12-09 15:12:41,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 129.0) internal successors, (3225), 25 states have internal predecessors, (3225), 0 states have call successors, (0), 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 15:12:41,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 176.0) internal successors, (4576), 26 states have internal predecessors, (4576), 0 states have call successors, (0), 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 15:12:41,363 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 176.0) internal successors, (4576), 26 states have internal predecessors, (4576), 0 states have call successors, (0), 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 15:12:41,363 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1313 predicate places. [2023-12-09 15:12:41,363 INFO L500 AbstractCegarLoop]: Abstraction has has 1472 places, 2892 transitions, 319379 flow [2023-12-09 15:12:41,364 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:12:41,364 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:12:41,364 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:12:41,364 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-12-09 15:12:41,364 INFO L425 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:12:41,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:12:41,364 INFO L85 PathProgramCache]: Analyzing trace with hash 14429566, now seen corresponding path program 24 times [2023-12-09 15:12:41,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:12:41,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305889898] [2023-12-09 15:12:41,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:12:41,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:12:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:12:41,464 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 15:12:41,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:12:41,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305889898] [2023-12-09 15:12:41,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305889898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:12:41,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:12:41,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:12:41,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522454350] [2023-12-09 15:12:41,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:12:41,465 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:12:41,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:12:41,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:12:41,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:12:41,466 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:12:41,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1472 places, 2892 transitions, 319379 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:12:41,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:12:41,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:12:41,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:12:52,180 INFO L124 PetriNetUnfolderBase]: 1352/6504 cut-off events. [2023-12-09 15:12:52,180 INFO L125 PetriNetUnfolderBase]: For 1376829/1406417 co-relation queries the response was YES. [2023-12-09 15:12:52,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231702 conditions, 6504 events. 1352/6504 cut-off events. For 1376829/1406417 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 74280 event pairs, 205 based on Foata normal form. 26/6398 useless extension candidates. Maximal degree in co-relation 191157. Up to 2994 conditions per place. [2023-12-09 15:12:52,280 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 308 selfloop transitions, 39 changer transitions 2416/2932 dead transitions. [2023-12-09 15:12:52,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1500 places, 2932 transitions, 329113 flow [2023-12-09 15:12:52,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-09 15:12:52,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-12-09 15:12:52,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3731 transitions. [2023-12-09 15:12:52,286 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7309952978056427 [2023-12-09 15:12:52,286 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 3731 transitions. [2023-12-09 15:12:52,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 3731 transitions. [2023-12-09 15:12:52,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:12:52,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 3731 transitions. [2023-12-09 15:12:52,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 128.6551724137931) internal successors, (3731), 29 states have internal predecessors, (3731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:12:52,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 176.0) internal successors, (5280), 30 states have internal predecessors, (5280), 0 states have call successors, (0), 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 15:12:52,291 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 176.0) internal successors, (5280), 30 states have internal predecessors, (5280), 0 states have call successors, (0), 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 15:12:52,291 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1341 predicate places. [2023-12-09 15:12:52,291 INFO L500 AbstractCegarLoop]: Abstraction has has 1500 places, 2932 transitions, 329113 flow [2023-12-09 15:12:52,291 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:12:52,291 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:12:52,291 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:12:52,291 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-12-09 15:12:52,291 INFO L425 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:12:52,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:12:52,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1087211572, now seen corresponding path program 25 times [2023-12-09 15:12:52,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:12:52,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077551659] [2023-12-09 15:12:52,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:12:52,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:12:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:12:52,395 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 15:12:52,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:12:52,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077551659] [2023-12-09 15:12:52,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077551659] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:12:52,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:12:52,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:12:52,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360872644] [2023-12-09 15:12:52,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:12:52,396 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:12:52,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:12:52,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:12:52,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:12:52,397 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:12:52,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1500 places, 2932 transitions, 329113 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:12:52,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:12:52,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:12:52,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:03,159 INFO L124 PetriNetUnfolderBase]: 1352/6567 cut-off events. [2023-12-09 15:13:03,159 INFO L125 PetriNetUnfolderBase]: For 1471835/1507334 co-relation queries the response was YES. [2023-12-09 15:13:03,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236665 conditions, 6567 events. 1352/6567 cut-off events. For 1471835/1507334 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 75387 event pairs, 209 based on Foata normal form. 39/6471 useless extension candidates. Maximal degree in co-relation 158572. Up to 3019 conditions per place. [2023-12-09 15:13:03,258 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 296 selfloop transitions, 25 changer transitions 2457/2947 dead transitions. [2023-12-09 15:13:03,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1520 places, 2947 transitions, 336274 flow [2023-12-09 15:13:03,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 15:13:03,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 15:13:03,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2719 transitions. [2023-12-09 15:13:03,260 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7356601731601732 [2023-12-09 15:13:03,260 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2719 transitions. [2023-12-09 15:13:03,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2719 transitions. [2023-12-09 15:13:03,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:03,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2719 transitions. [2023-12-09 15:13:03,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 129.47619047619048) internal successors, (2719), 21 states have internal predecessors, (2719), 0 states have call successors, (0), 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 15:13:03,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 176.0) internal successors, (3872), 22 states have internal predecessors, (3872), 0 states have call successors, (0), 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 15:13:03,263 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 176.0) internal successors, (3872), 22 states have internal predecessors, (3872), 0 states have call successors, (0), 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 15:13:03,264 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1361 predicate places. [2023-12-09 15:13:03,264 INFO L500 AbstractCegarLoop]: Abstraction has has 1520 places, 2947 transitions, 336274 flow [2023-12-09 15:13:03,264 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:13:03,264 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:03,264 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:03,264 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-12-09 15:13:03,264 INFO L425 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:03,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:03,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1666030928, now seen corresponding path program 26 times [2023-12-09 15:13:03,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:03,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689231855] [2023-12-09 15:13:03,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:03,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:03,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:03,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:03,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689231855] [2023-12-09 15:13:03,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689231855] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:03,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:03,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:13:03,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457974313] [2023-12-09 15:13:03,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:03,437 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:13:03,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:03,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:13:03,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:13:03,439 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:13:03,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1520 places, 2947 transitions, 336274 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:13:03,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:03,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:13:03,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:15,869 INFO L124 PetriNetUnfolderBase]: 1381/6695 cut-off events. [2023-12-09 15:13:15,869 INFO L125 PetriNetUnfolderBase]: For 1524634/1560933 co-relation queries the response was YES. [2023-12-09 15:13:15,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244181 conditions, 6695 events. 1381/6695 cut-off events. For 1524634/1560933 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 76890 event pairs, 205 based on Foata normal form. 22/6581 useless extension candidates. Maximal degree in co-relation 163508. Up to 3067 conditions per place. [2023-12-09 15:13:15,991 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 285 selfloop transitions, 30 changer transitions 2503/2989 dead transitions. [2023-12-09 15:13:15,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1547 places, 2989 transitions, 346680 flow [2023-12-09 15:13:15,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-09 15:13:15,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-12-09 15:13:15,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3607 transitions. [2023-12-09 15:13:15,993 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.731939935064935 [2023-12-09 15:13:15,993 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3607 transitions. [2023-12-09 15:13:15,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3607 transitions. [2023-12-09 15:13:15,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:15,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3607 transitions. [2023-12-09 15:13:15,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 128.82142857142858) internal successors, (3607), 28 states have internal predecessors, (3607), 0 states have call successors, (0), 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 15:13:15,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 176.0) internal successors, (5104), 29 states have internal predecessors, (5104), 0 states have call successors, (0), 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 15:13:15,998 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 176.0) internal successors, (5104), 29 states have internal predecessors, (5104), 0 states have call successors, (0), 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 15:13:15,998 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1388 predicate places. [2023-12-09 15:13:15,998 INFO L500 AbstractCegarLoop]: Abstraction has has 1547 places, 2989 transitions, 346680 flow [2023-12-09 15:13:16,065 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:13:16,065 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:16,065 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:16,065 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-12-09 15:13:16,065 INFO L425 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:16,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:16,066 INFO L85 PathProgramCache]: Analyzing trace with hash -37944108, now seen corresponding path program 27 times [2023-12-09 15:13:16,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:16,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008546118] [2023-12-09 15:13:16,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:16,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:16,171 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 15:13:16,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:16,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008546118] [2023-12-09 15:13:16,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008546118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:16,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:16,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:13:16,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619605414] [2023-12-09 15:13:16,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:16,172 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:13:16,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:16,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:13:16,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:13:16,173 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:13:16,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1547 places, 2989 transitions, 346680 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:13:16,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:16,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:13:16,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:27,983 INFO L124 PetriNetUnfolderBase]: 1397/6784 cut-off events. [2023-12-09 15:13:27,983 INFO L125 PetriNetUnfolderBase]: For 1580779/1614517 co-relation queries the response was YES. [2023-12-09 15:13:28,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251711 conditions, 6784 events. 1397/6784 cut-off events. For 1580779/1614517 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 78082 event pairs, 210 based on Foata normal form. 17/6657 useless extension candidates. Maximal degree in co-relation 168824. Up to 3136 conditions per place. [2023-12-09 15:13:28,093 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 285 selfloop transitions, 38 changer transitions 2562/3054 dead transitions. [2023-12-09 15:13:28,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1571 places, 3054 transitions, 360184 flow [2023-12-09 15:13:28,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-09 15:13:28,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-12-09 15:13:28,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3231 transitions. [2023-12-09 15:13:28,095 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7343181818181819 [2023-12-09 15:13:28,095 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3231 transitions. [2023-12-09 15:13:28,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3231 transitions. [2023-12-09 15:13:28,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:28,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3231 transitions. [2023-12-09 15:13:28,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 129.24) internal successors, (3231), 25 states have internal predecessors, (3231), 0 states have call successors, (0), 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 15:13:28,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 176.0) internal successors, (4576), 26 states have internal predecessors, (4576), 0 states have call successors, (0), 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 15:13:28,099 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 176.0) internal successors, (4576), 26 states have internal predecessors, (4576), 0 states have call successors, (0), 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 15:13:28,100 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1412 predicate places. [2023-12-09 15:13:28,100 INFO L500 AbstractCegarLoop]: Abstraction has has 1571 places, 3054 transitions, 360184 flow [2023-12-09 15:13:28,100 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:13:28,100 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:28,100 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:28,100 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-12-09 15:13:28,100 INFO L425 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:28,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:28,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1069426448, now seen corresponding path program 28 times [2023-12-09 15:13:28,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:28,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607413141] [2023-12-09 15:13:28,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:28,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:28,204 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 15:13:28,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:28,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607413141] [2023-12-09 15:13:28,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607413141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:28,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:28,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:13:28,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705521054] [2023-12-09 15:13:28,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:28,205 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:13:28,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:28,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:13:28,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:13:28,206 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:13:28,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1571 places, 3054 transitions, 360184 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:13:28,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:28,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:13:28,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:41,032 INFO L124 PetriNetUnfolderBase]: 1432/6920 cut-off events. [2023-12-09 15:13:41,032 INFO L125 PetriNetUnfolderBase]: For 1670735/1709987 co-relation queries the response was YES. [2023-12-09 15:13:41,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260672 conditions, 6920 events. 1432/6920 cut-off events. For 1670735/1709987 co-relation queries the response was YES. Maximal size of possible extension queue 454. Compared 79718 event pairs, 198 based on Foata normal form. 34/6807 useless extension candidates. Maximal degree in co-relation 174868. Up to 3210 conditions per place. [2023-12-09 15:13:41,153 INFO L140 encePairwiseOnDemand]: 160/176 looper letters, 301 selfloop transitions, 51 changer transitions 2589/3110 dead transitions. [2023-12-09 15:13:41,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1593 places, 3110 transitions, 372678 flow [2023-12-09 15:13:41,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:13:41,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:13:41,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2975 transitions. [2023-12-09 15:13:41,155 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7349308300395256 [2023-12-09 15:13:41,155 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2975 transitions. [2023-12-09 15:13:41,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2975 transitions. [2023-12-09 15:13:41,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:41,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2975 transitions. [2023-12-09 15:13:41,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 129.34782608695653) internal successors, (2975), 23 states have internal predecessors, (2975), 0 states have call successors, (0), 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 15:13:41,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 176.0) internal successors, (4224), 24 states have internal predecessors, (4224), 0 states have call successors, (0), 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 15:13:41,159 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 176.0) internal successors, (4224), 24 states have internal predecessors, (4224), 0 states have call successors, (0), 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 15:13:41,159 INFO L308 CegarLoopForPetriNet]: 159 programPoint places, 1434 predicate places. [2023-12-09 15:13:41,160 INFO L500 AbstractCegarLoop]: Abstraction has has 1593 places, 3110 transitions, 372678 flow [2023-12-09 15:13:41,160 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:13:41,160 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:41,160 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:41,160 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-12-09 15:13:41,160 INFO L425 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:41,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:41,160 INFO L85 PathProgramCache]: Analyzing trace with hash -548524484, now seen corresponding path program 29 times [2023-12-09 15:13:41,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:41,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654424796] [2023-12-09 15:13:41,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:41,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:41,268 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 15:13:41,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:41,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654424796] [2023-12-09 15:13:41,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654424796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:41,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:41,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:13:41,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887502905] [2023-12-09 15:13:41,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:41,269 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:13:41,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:41,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:13:41,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:13:41,270 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2023-12-09 15:13:41,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1593 places, 3110 transitions, 372678 flow. Second operand has 11 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 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 15:13:41,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:41,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2023-12-09 15:13:41,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-12-09 15:13:42,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:13:42,501 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-09 15:13:42,502 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-12-09 15:13:42,502 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 124/176 universal loopers) in iteration 71,while PetriNetUnfolder was constructing finite prefix that currently has 21215 conditions, 584 events (91/583 cut-off events. For 224615/235032 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 5325 event pairs, 13 based on Foata normal form. 3/709 useless extension candidates. Maximal degree in co-relation 20880. Up to 233 conditions per place.). [2023-12-09 15:13:42,503 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-12-09 15:13:42,503 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-12-09 15:13:42,503 INFO L457 BasicCegarLoop]: Path program histogram: [35, 29, 3, 3, 1] [2023-12-09 15:13:42,505 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:13:42,505 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:13:42,507 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 [2023-12-09 15:13:42,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:13:42 BasicIcfg [2023-12-09 15:13:42,513 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:13:42,513 INFO L158 Benchmark]: Toolchain (without parser) took 253987.40ms. Allocated memory was 296.7MB in the beginning and 4.0GB in the end (delta: 3.7GB). Free memory was 244.4MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-09 15:13:42,513 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 213.9MB. Free memory was 161.8MB in the beginning and 161.8MB in the end (delta: 71.7kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:13:42,513 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.29ms. Allocated memory is still 296.7MB. Free memory was 243.8MB in the beginning and 232.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-09 15:13:42,514 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.00ms. Allocated memory is still 296.7MB. Free memory was 232.8MB in the beginning and 230.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:13:42,514 INFO L158 Benchmark]: Boogie Preprocessor took 18.47ms. Allocated memory is still 296.7MB. Free memory was 230.7MB in the beginning and 229.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:13:42,514 INFO L158 Benchmark]: RCFGBuilder took 416.98ms. Allocated memory is still 296.7MB. Free memory was 229.1MB in the beginning and 211.3MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-09 15:13:42,514 INFO L158 Benchmark]: TraceAbstraction took 253321.10ms. Allocated memory was 296.7MB in the beginning and 4.0GB in the end (delta: 3.7GB). Free memory was 210.8MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-09 15:13:42,515 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 213.9MB. Free memory was 161.8MB in the beginning and 161.8MB in the end (delta: 71.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 195.29ms. Allocated memory is still 296.7MB. Free memory was 243.8MB in the beginning and 232.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.00ms. Allocated memory is still 296.7MB. Free memory was 232.8MB in the beginning and 230.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.47ms. Allocated memory is still 296.7MB. Free memory was 230.7MB in the beginning and 229.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 416.98ms. Allocated memory is still 296.7MB. Free memory was 229.1MB in the beginning and 211.3MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 253321.10ms. Allocated memory was 296.7MB in the beginning and 4.0GB in the end (delta: 3.7GB). Free memory was 210.8MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 1.7GB. 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 (11states, 124/176 universal loopers) in iteration 71,while PetriNetUnfolder was constructing finite prefix that currently has 21215 conditions, 584 events (91/583 cut-off events. For 224615/235032 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 5325 event pairs, 13 based on Foata normal form. 3/709 useless extension candidates. Maximal degree in co-relation 20880. Up to 233 conditions per place.). - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 124/176 universal loopers) in iteration 71,while PetriNetUnfolder was constructing finite prefix that currently has 21215 conditions, 584 events (91/583 cut-off events. For 224615/235032 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 5325 event pairs, 13 based on Foata normal form. 3/709 useless extension candidates. Maximal degree in co-relation 20880. Up to 233 conditions per place.). - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (11states, 124/176 universal loopers) in iteration 71,while PetriNetUnfolder was constructing finite prefix that currently has 21215 conditions, 584 events (91/583 cut-off events. For 224615/235032 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 5325 event pairs, 13 based on Foata normal form. 3/709 useless extension candidates. Maximal degree in co-relation 20880. Up to 233 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 250 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: 253.2s, OverallIterations: 71, TraceHistogramMax: 1, PathProgramHistogramMax: 35, EmptinessCheckTime: 0.0s, AutomataDifference: 243.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3866 SdHoareTripleChecker+Valid, 7.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3866 mSDsluCounter, 29801 SdHoareTripleChecker+Invalid, 6.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24931 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18290 IncrementalHoareTripleChecker+Invalid, 18383 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 4870 mSDtfsCounter, 18290 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1938 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 1703 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9407 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=372678occurred in iteration=70, InterpolantAutomatonStates: 1504, 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, 0.4s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 6573 NumberOfCodeBlocks, 6573 NumberOfCodeBlocksAsserted, 71 NumberOfCheckSat, 6502 ConstructedInterpolants, 0 QuantifiedInterpolants, 24317 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 71 InterpolantComputations, 71 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown