/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/security.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:35:34,017 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:35:34,104 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 15:35:34,136 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:35:34,137 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:35:34,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:35:34,138 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:35:34,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:35:34,138 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:35:34,142 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:35:34,142 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:35:34,143 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:35:34,143 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:35:34,144 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:35:34,144 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:35:34,144 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:35:34,145 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:35:34,145 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:35:34,145 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:35:34,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:35:34,146 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:35:34,146 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:35:34,147 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:35:34,147 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:35:34,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:35:34,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:35:34,148 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:35:34,149 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:35:34,149 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:35:34,149 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:35:34,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:35:34,150 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:35:34,150 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:35:34,151 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:35:34,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:35:34,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:35:34,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:35:34,401 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:35:34,401 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:35:34,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/security.wvr.c [2023-12-09 15:35:35,549 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:35:35,731 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:35:35,732 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/security.wvr.c [2023-12-09 15:35:35,738 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eba44b6d6/dda2a13bc1ec4c18a718fa4d07752e64/FLAG752ed68d8 [2023-12-09 15:35:35,753 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eba44b6d6/dda2a13bc1ec4c18a718fa4d07752e64 [2023-12-09 15:35:35,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:35:35,757 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:35:35,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:35:35,760 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:35:35,763 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:35:35,764 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:35:35" (1/1) ... [2023-12-09 15:35:35,765 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15b595c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:35, skipping insertion in model container [2023-12-09 15:35:35,766 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:35:35" (1/1) ... [2023-12-09 15:35:35,791 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:35:35,918 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/security.wvr.c[1957,1970] [2023-12-09 15:35:35,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:35:35,933 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:35:35,948 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/security.wvr.c[1957,1970] [2023-12-09 15:35:35,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:35:35,960 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:35:35,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:35 WrapperNode [2023-12-09 15:35:35,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:35:35,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:35:35,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:35:35,961 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:35:35,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:35" (1/1) ... [2023-12-09 15:35:35,972 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:35" (1/1) ... [2023-12-09 15:35:35,985 INFO L138 Inliner]: procedures = 21, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2023-12-09 15:35:35,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:35:35,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:35:35,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:35:35,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:35:35,993 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:35" (1/1) ... [2023-12-09 15:35:35,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:35" (1/1) ... [2023-12-09 15:35:35,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:35" (1/1) ... [2023-12-09 15:35:35,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:35" (1/1) ... [2023-12-09 15:35:35,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:35" (1/1) ... [2023-12-09 15:35:36,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:35" (1/1) ... [2023-12-09 15:35:36,002 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:35" (1/1) ... [2023-12-09 15:35:36,003 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:35" (1/1) ... [2023-12-09 15:35:36,005 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:35:36,006 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:35:36,006 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:35:36,006 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:35:36,007 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:35" (1/1) ... [2023-12-09 15:35:36,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:35:36,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:35:36,041 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 15:35:36,062 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 15:35:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:35:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:35:36,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:35:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:35:36,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:35:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:35:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:35:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:35:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:35:36,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:35:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:35:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:35:36,077 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 15:35:36,149 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:35:36,151 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:35:36,300 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:35:36,309 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:35:36,310 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 15:35:36,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:35:36 BoogieIcfgContainer [2023-12-09 15:35:36,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:35:36,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:35:36,313 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:35:36,316 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:35:36,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:35:35" (1/3) ... [2023-12-09 15:35:36,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58aa1ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:35:36, skipping insertion in model container [2023-12-09 15:35:36,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:35" (2/3) ... [2023-12-09 15:35:36,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58aa1ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:35:36, skipping insertion in model container [2023-12-09 15:35:36,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:35:36" (3/3) ... [2023-12-09 15:35:36,318 INFO L112 eAbstractionObserver]: Analyzing ICFG security.wvr.c [2023-12-09 15:35:36,334 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:35:36,335 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:35:36,335 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:35:36,387 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-09 15:35:36,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions, 178 flow [2023-12-09 15:35:36,463 INFO L124 PetriNetUnfolderBase]: 3/80 cut-off events. [2023-12-09 15:35:36,463 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:35:36,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 80 events. 3/80 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2023-12-09 15:35:36,468 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 82 transitions, 178 flow [2023-12-09 15:35:36,473 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 71 transitions, 154 flow [2023-12-09 15:35:36,482 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:35:36,487 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;@21f453b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:35:36,488 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-09 15:35:36,509 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:35:36,509 INFO L124 PetriNetUnfolderBase]: 3/70 cut-off events. [2023-12-09 15:35:36,509 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:35:36,509 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:36,510 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] [2023-12-09 15:35:36,511 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 15:35:36,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:36,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1492748796, now seen corresponding path program 1 times [2023-12-09 15:35:36,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:36,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135682059] [2023-12-09 15:35:36,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:36,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:37,506 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 15:35:37,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:37,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135682059] [2023-12-09 15:35:37,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135682059] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:37,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:37,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:35:37,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914971363] [2023-12-09 15:35:37,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:37,518 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:35:37,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:37,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:35:37,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:35:37,555 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:35:37,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 154 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:37,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:37,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:35:37,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:37,966 INFO L124 PetriNetUnfolderBase]: 24/189 cut-off events. [2023-12-09 15:35:37,966 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-12-09 15:35:37,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 189 events. 24/189 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 647 event pairs, 11 based on Foata normal form. 4/180 useless extension candidates. Maximal degree in co-relation 171. Up to 49 conditions per place. [2023-12-09 15:35:37,970 INFO L140 encePairwiseOnDemand]: 71/82 looper letters, 38 selfloop transitions, 2 changer transitions 20/105 dead transitions. [2023-12-09 15:35:37,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 105 transitions, 363 flow [2023-12-09 15:35:37,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:35:37,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:35:37,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 891 transitions. [2023-12-09 15:35:37,992 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.724390243902439 [2023-12-09 15:35:37,993 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 891 transitions. [2023-12-09 15:35:37,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 891 transitions. [2023-12-09 15:35:37,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:37,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 891 transitions. [2023-12-09 15:35:38,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 59.4) internal successors, (891), 15 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:38,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 82.0) internal successors, (1312), 16 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:38,025 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 82.0) internal successors, (1312), 16 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:38,028 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 14 predicate places. [2023-12-09 15:35:38,028 INFO L500 AbstractCegarLoop]: Abstraction has has 89 places, 105 transitions, 363 flow [2023-12-09 15:35:38,029 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:38,029 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:38,029 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] [2023-12-09 15:35:38,029 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:35:38,030 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 15:35:38,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:38,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1603431755, now seen corresponding path program 1 times [2023-12-09 15:35:38,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:38,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208426800] [2023-12-09 15:35:38,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:38,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:38,432 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 15:35:38,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:38,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208426800] [2023-12-09 15:35:38,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208426800] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:38,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:38,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:35:38,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023240443] [2023-12-09 15:35:38,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:38,438 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:35:38,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:38,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:35:38,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:35:38,440 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 82 [2023-12-09 15:35:38,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 105 transitions, 363 flow. Second operand has 8 states, 8 states have (on average 59.5) internal successors, (476), 8 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:38,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:38,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 82 [2023-12-09 15:35:38,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:38,655 INFO L124 PetriNetUnfolderBase]: 31/284 cut-off events. [2023-12-09 15:35:38,655 INFO L125 PetriNetUnfolderBase]: For 165/171 co-relation queries the response was YES. [2023-12-09 15:35:38,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 284 events. 31/284 cut-off events. For 165/171 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1415 event pairs, 11 based on Foata normal form. 0/269 useless extension candidates. Maximal degree in co-relation 339. Up to 71 conditions per place. [2023-12-09 15:35:38,661 INFO L140 encePairwiseOnDemand]: 74/82 looper letters, 61 selfloop transitions, 5 changer transitions 38/152 dead transitions. [2023-12-09 15:35:38,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 152 transitions, 793 flow [2023-12-09 15:35:38,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 15:35:38,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 15:35:38,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 620 transitions. [2023-12-09 15:35:38,663 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7560975609756098 [2023-12-09 15:35:38,663 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 620 transitions. [2023-12-09 15:35:38,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 620 transitions. [2023-12-09 15:35:38,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:38,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 620 transitions. [2023-12-09 15:35:38,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:38,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:38,669 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:38,670 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 23 predicate places. [2023-12-09 15:35:38,670 INFO L500 AbstractCegarLoop]: Abstraction has has 98 places, 152 transitions, 793 flow [2023-12-09 15:35:38,670 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 59.5) internal successors, (476), 8 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:38,670 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:38,671 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] [2023-12-09 15:35:38,671 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:35:38,671 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 15:35:38,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:38,673 INFO L85 PathProgramCache]: Analyzing trace with hash -730999898, now seen corresponding path program 2 times [2023-12-09 15:35:38,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:38,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146358443] [2023-12-09 15:35:38,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:38,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:38,952 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 15:35:38,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:38,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146358443] [2023-12-09 15:35:38,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146358443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:38,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:38,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:35:38,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410343802] [2023-12-09 15:35:38,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:38,954 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:35:38,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:38,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:35:38,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:35:38,956 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:35:38,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 152 transitions, 793 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:38,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:38,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:35:38,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:39,185 INFO L124 PetriNetUnfolderBase]: 31/303 cut-off events. [2023-12-09 15:35:39,185 INFO L125 PetriNetUnfolderBase]: For 338/356 co-relation queries the response was YES. [2023-12-09 15:35:39,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 819 conditions, 303 events. 31/303 cut-off events. For 338/356 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1595 event pairs, 0 based on Foata normal form. 0/293 useless extension candidates. Maximal degree in co-relation 445. Up to 82 conditions per place. [2023-12-09 15:35:39,193 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 69 selfloop transitions, 13 changer transitions 48/175 dead transitions. [2023-12-09 15:35:39,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 175 transitions, 1209 flow [2023-12-09 15:35:39,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 15:35:39,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 15:35:39,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 596 transitions. [2023-12-09 15:35:39,195 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7268292682926829 [2023-12-09 15:35:39,195 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 596 transitions. [2023-12-09 15:35:39,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 596 transitions. [2023-12-09 15:35:39,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:39,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 596 transitions. [2023-12-09 15:35:39,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 59.6) internal successors, (596), 10 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:39,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:39,199 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:39,200 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 32 predicate places. [2023-12-09 15:35:39,201 INFO L500 AbstractCegarLoop]: Abstraction has has 107 places, 175 transitions, 1209 flow [2023-12-09 15:35:39,201 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:39,201 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:39,201 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] [2023-12-09 15:35:39,202 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:35:39,202 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 15:35:39,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:39,202 INFO L85 PathProgramCache]: Analyzing trace with hash -176012858, now seen corresponding path program 1 times [2023-12-09 15:35:39,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:39,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965860826] [2023-12-09 15:35:39,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:39,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:39,467 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 15:35:39,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:39,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965860826] [2023-12-09 15:35:39,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965860826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:39,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:39,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:35:39,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254917021] [2023-12-09 15:35:39,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:39,472 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:35:39,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:39,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:35:39,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:35:39,475 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:35:39,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 175 transitions, 1209 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:39,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:39,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:35:39,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:39,675 INFO L124 PetriNetUnfolderBase]: 36/344 cut-off events. [2023-12-09 15:35:39,676 INFO L125 PetriNetUnfolderBase]: For 593/605 co-relation queries the response was YES. [2023-12-09 15:35:39,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1078 conditions, 344 events. 36/344 cut-off events. For 593/605 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1929 event pairs, 0 based on Foata normal form. 2/334 useless extension candidates. Maximal degree in co-relation 510. Up to 92 conditions per place. [2023-12-09 15:35:39,678 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 76 selfloop transitions, 22 changer transitions 56/200 dead transitions. [2023-12-09 15:35:39,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 200 transitions, 1739 flow [2023-12-09 15:35:39,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 15:35:39,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 15:35:39,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 595 transitions. [2023-12-09 15:35:39,680 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.725609756097561 [2023-12-09 15:35:39,681 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 595 transitions. [2023-12-09 15:35:39,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 595 transitions. [2023-12-09 15:35:39,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:39,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 595 transitions. [2023-12-09 15:35:39,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 59.5) internal successors, (595), 10 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:39,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:39,684 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:39,686 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 41 predicate places. [2023-12-09 15:35:39,686 INFO L500 AbstractCegarLoop]: Abstraction has has 116 places, 200 transitions, 1739 flow [2023-12-09 15:35:39,687 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:39,688 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:39,688 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] [2023-12-09 15:35:39,688 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:35:39,688 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 15:35:39,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:39,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1668139235, now seen corresponding path program 1 times [2023-12-09 15:35:39,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:39,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936735199] [2023-12-09 15:35:39,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:39,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:39,956 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 15:35:39,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:39,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936735199] [2023-12-09 15:35:39,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936735199] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:39,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:39,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:35:39,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665139456] [2023-12-09 15:35:39,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:39,958 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:35:39,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:39,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:35:39,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:35:39,961 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:35:39,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 200 transitions, 1739 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:39,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:39,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:35:39,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:40,267 INFO L124 PetriNetUnfolderBase]: 43/422 cut-off events. [2023-12-09 15:35:40,267 INFO L125 PetriNetUnfolderBase]: For 1111/1161 co-relation queries the response was YES. [2023-12-09 15:35:40,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1585 conditions, 422 events. 43/422 cut-off events. For 1111/1161 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2681 event pairs, 0 based on Foata normal form. 14/423 useless extension candidates. Maximal degree in co-relation 786. Up to 114 conditions per place. [2023-12-09 15:35:40,270 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 75 selfloop transitions, 22 changer transitions 101/241 dead transitions. [2023-12-09 15:35:40,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 241 transitions, 2569 flow [2023-12-09 15:35:40,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:35:40,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:35:40,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 857 transitions. [2023-12-09 15:35:40,272 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6967479674796748 [2023-12-09 15:35:40,273 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 857 transitions. [2023-12-09 15:35:40,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 857 transitions. [2023-12-09 15:35:40,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:40,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 857 transitions. [2023-12-09 15:35:40,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 57.13333333333333) internal successors, (857), 15 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:40,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 82.0) internal successors, (1312), 16 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:40,280 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 82.0) internal successors, (1312), 16 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:40,282 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 55 predicate places. [2023-12-09 15:35:40,282 INFO L500 AbstractCegarLoop]: Abstraction has has 130 places, 241 transitions, 2569 flow [2023-12-09 15:35:40,283 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:40,283 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:40,283 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] [2023-12-09 15:35:40,283 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:35:40,283 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 15:35:40,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:40,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1132104635, now seen corresponding path program 2 times [2023-12-09 15:35:40,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:40,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322966426] [2023-12-09 15:35:40,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:40,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:40,514 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 15:35:40,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:40,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322966426] [2023-12-09 15:35:40,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322966426] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:40,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:40,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:35:40,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547334122] [2023-12-09 15:35:40,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:40,520 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:35:40,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:40,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:35:40,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:35:40,522 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 82 [2023-12-09 15:35:40,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 241 transitions, 2569 flow. Second operand has 8 states, 8 states have (on average 59.5) internal successors, (476), 8 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:40,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:40,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 82 [2023-12-09 15:35:40,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:40,736 INFO L124 PetriNetUnfolderBase]: 43/463 cut-off events. [2023-12-09 15:35:40,736 INFO L125 PetriNetUnfolderBase]: For 1736/1788 co-relation queries the response was YES. [2023-12-09 15:35:40,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1969 conditions, 463 events. 43/463 cut-off events. For 1736/1788 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3095 event pairs, 0 based on Foata normal form. 4/452 useless extension candidates. Maximal degree in co-relation 964. Up to 132 conditions per place. [2023-12-09 15:35:40,739 INFO L140 encePairwiseOnDemand]: 74/82 looper letters, 94 selfloop transitions, 6 changer transitions 111/261 dead transitions. [2023-12-09 15:35:40,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 261 transitions, 3242 flow [2023-12-09 15:35:40,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-09 15:35:40,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-12-09 15:35:40,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 746 transitions. [2023-12-09 15:35:40,741 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.758130081300813 [2023-12-09 15:35:40,741 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 746 transitions. [2023-12-09 15:35:40,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 746 transitions. [2023-12-09 15:35:40,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:40,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 746 transitions. [2023-12-09 15:35:40,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 62.166666666666664) internal successors, (746), 12 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:40,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:40,746 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:40,748 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 66 predicate places. [2023-12-09 15:35:40,748 INFO L500 AbstractCegarLoop]: Abstraction has has 141 places, 261 transitions, 3242 flow [2023-12-09 15:35:40,748 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 59.5) internal successors, (476), 8 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:40,748 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:40,748 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] [2023-12-09 15:35:40,749 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:35:40,749 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 15:35:40,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:40,749 INFO L85 PathProgramCache]: Analyzing trace with hash -885558472, now seen corresponding path program 3 times [2023-12-09 15:35:40,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:40,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235836227] [2023-12-09 15:35:40,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:40,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:40,977 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 15:35:40,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:40,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235836227] [2023-12-09 15:35:40,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235836227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:40,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:40,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:35:40,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318749112] [2023-12-09 15:35:40,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:40,982 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:35:40,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:40,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:35:40,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:35:40,985 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:35:40,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 261 transitions, 3242 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:40,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:40,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:35:40,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:41,198 INFO L124 PetriNetUnfolderBase]: 43/492 cut-off events. [2023-12-09 15:35:41,199 INFO L125 PetriNetUnfolderBase]: For 2508/2597 co-relation queries the response was YES. [2023-12-09 15:35:41,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2370 conditions, 492 events. 43/492 cut-off events. For 2508/2597 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3427 event pairs, 0 based on Foata normal form. 10/488 useless extension candidates. Maximal degree in co-relation 1150. Up to 147 conditions per place. [2023-12-09 15:35:41,201 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 89 selfloop transitions, 14 changer transitions 128/278 dead transitions. [2023-12-09 15:35:41,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 278 transitions, 3955 flow [2023-12-09 15:35:41,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-09 15:35:41,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-12-09 15:35:41,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 658 transitions. [2023-12-09 15:35:41,204 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.729490022172949 [2023-12-09 15:35:41,204 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 658 transitions. [2023-12-09 15:35:41,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 658 transitions. [2023-12-09 15:35:41,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:41,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 658 transitions. [2023-12-09 15:35:41,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 59.81818181818182) internal successors, (658), 11 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:41,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:41,208 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:41,208 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 76 predicate places. [2023-12-09 15:35:41,208 INFO L500 AbstractCegarLoop]: Abstraction has has 151 places, 278 transitions, 3955 flow [2023-12-09 15:35:41,209 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:41,209 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:41,209 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] [2023-12-09 15:35:41,209 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:35:41,209 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 15:35:41,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:41,210 INFO L85 PathProgramCache]: Analyzing trace with hash 359998538, now seen corresponding path program 2 times [2023-12-09 15:35:41,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:41,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970234457] [2023-12-09 15:35:41,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:41,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:41,473 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 15:35:41,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:41,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970234457] [2023-12-09 15:35:41,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970234457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:41,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:41,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:35:41,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604021854] [2023-12-09 15:35:41,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:41,474 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:35:41,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:41,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:35:41,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:35:41,475 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:35:41,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 278 transitions, 3955 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:41,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:41,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:35:41,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:41,737 INFO L124 PetriNetUnfolderBase]: 49/597 cut-off events. [2023-12-09 15:35:41,738 INFO L125 PetriNetUnfolderBase]: For 3963/4117 co-relation queries the response was YES. [2023-12-09 15:35:41,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3222 conditions, 597 events. 49/597 cut-off events. For 3963/4117 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4580 event pairs, 0 based on Foata normal form. 9/591 useless extension candidates. Maximal degree in co-relation 1604. Up to 187 conditions per place. [2023-12-09 15:35:41,741 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 112 selfloop transitions, 7 changer transitions 168/333 dead transitions. [2023-12-09 15:35:41,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 333 transitions, 5432 flow [2023-12-09 15:35:41,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 15:35:41,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 15:35:41,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 786 transitions. [2023-12-09 15:35:41,744 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7373358348968105 [2023-12-09 15:35:41,744 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 786 transitions. [2023-12-09 15:35:41,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 786 transitions. [2023-12-09 15:35:41,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:41,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 786 transitions. [2023-12-09 15:35:41,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 60.46153846153846) internal successors, (786), 13 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:41,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:41,748 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:41,749 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 88 predicate places. [2023-12-09 15:35:41,749 INFO L500 AbstractCegarLoop]: Abstraction has has 163 places, 333 transitions, 5432 flow [2023-12-09 15:35:41,749 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:41,749 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:41,749 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] [2023-12-09 15:35:41,750 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 15:35:41,750 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 15:35:41,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:41,750 INFO L85 PathProgramCache]: Analyzing trace with hash -512689734, now seen corresponding path program 4 times [2023-12-09 15:35:41,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:41,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313022997] [2023-12-09 15:35:41,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:41,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:41,933 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 15:35:41,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:41,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313022997] [2023-12-09 15:35:41,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313022997] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:41,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:41,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:35:41,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796460874] [2023-12-09 15:35:41,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:41,966 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:35:41,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:41,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:35:41,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:35:41,967 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:35:41,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 333 transitions, 5432 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:41,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:41,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:35:41,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:42,206 INFO L124 PetriNetUnfolderBase]: 49/593 cut-off events. [2023-12-09 15:35:42,206 INFO L125 PetriNetUnfolderBase]: For 4936/5089 co-relation queries the response was YES. [2023-12-09 15:35:42,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3509 conditions, 593 events. 49/593 cut-off events. For 4936/5089 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4563 event pairs, 0 based on Foata normal form. 10/589 useless extension candidates. Maximal degree in co-relation 1753. Up to 184 conditions per place. [2023-12-09 15:35:42,210 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 93 selfloop transitions, 12 changer transitions 177/330 dead transitions. [2023-12-09 15:35:42,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 330 transitions, 5938 flow [2023-12-09 15:35:42,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-09 15:35:42,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-12-09 15:35:42,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 715 transitions. [2023-12-09 15:35:42,212 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7266260162601627 [2023-12-09 15:35:42,212 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 715 transitions. [2023-12-09 15:35:42,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 715 transitions. [2023-12-09 15:35:42,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:42,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 715 transitions. [2023-12-09 15:35:42,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 59.583333333333336) internal successors, (715), 12 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:42,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:42,216 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:42,217 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 99 predicate places. [2023-12-09 15:35:42,217 INFO L500 AbstractCegarLoop]: Abstraction has has 174 places, 330 transitions, 5938 flow [2023-12-09 15:35:42,217 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:42,217 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:42,217 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] [2023-12-09 15:35:42,218 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 15:35:42,218 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 15:35:42,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:42,218 INFO L85 PathProgramCache]: Analyzing trace with hash -876026862, now seen corresponding path program 3 times [2023-12-09 15:35:42,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:42,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501277548] [2023-12-09 15:35:42,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:42,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:42,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:35:42,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:42,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501277548] [2023-12-09 15:35:42,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501277548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:42,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:42,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:35:42,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089970914] [2023-12-09 15:35:42,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:42,402 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:35:42,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:42,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:35:42,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:35:42,403 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:35:42,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 330 transitions, 5938 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:42,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:42,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:35:42,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:42,744 INFO L124 PetriNetUnfolderBase]: 48/606 cut-off events. [2023-12-09 15:35:42,745 INFO L125 PetriNetUnfolderBase]: For 6251/6483 co-relation queries the response was YES. [2023-12-09 15:35:42,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3900 conditions, 606 events. 48/606 cut-off events. For 6251/6483 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4691 event pairs, 0 based on Foata normal form. 11/603 useless extension candidates. Maximal degree in co-relation 1927. Up to 189 conditions per place. [2023-12-09 15:35:42,749 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 98 selfloop transitions, 7 changer transitions 185/336 dead transitions. [2023-12-09 15:35:42,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 336 transitions, 6642 flow [2023-12-09 15:35:42,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:35:42,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:35:42,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1070 transitions. [2023-12-09 15:35:42,777 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7249322493224932 [2023-12-09 15:35:42,778 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1070 transitions. [2023-12-09 15:35:42,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1070 transitions. [2023-12-09 15:35:42,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:42,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1070 transitions. [2023-12-09 15:35:42,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 59.44444444444444) internal successors, (1070), 18 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:42,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 82.0) internal successors, (1558), 19 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:42,784 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 82.0) internal successors, (1558), 19 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:42,785 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 116 predicate places. [2023-12-09 15:35:42,785 INFO L500 AbstractCegarLoop]: Abstraction has has 191 places, 336 transitions, 6642 flow [2023-12-09 15:35:42,785 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:42,785 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:42,785 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] [2023-12-09 15:35:42,786 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-09 15:35:42,786 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 15:35:42,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:42,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1390811831, now seen corresponding path program 2 times [2023-12-09 15:35:42,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:42,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920827876] [2023-12-09 15:35:42,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:42,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:43,000 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 15:35:43,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:43,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920827876] [2023-12-09 15:35:43,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920827876] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:43,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:43,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:35:43,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99751984] [2023-12-09 15:35:43,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:43,001 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:35:43,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:43,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:35:43,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:35:43,002 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:35:43,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 336 transitions, 6642 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:43,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:43,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:35:43,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:43,316 INFO L124 PetriNetUnfolderBase]: 54/712 cut-off events. [2023-12-09 15:35:43,317 INFO L125 PetriNetUnfolderBase]: For 8796/9012 co-relation queries the response was YES. [2023-12-09 15:35:43,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5000 conditions, 712 events. 54/712 cut-off events. For 8796/9012 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5966 event pairs, 0 based on Foata normal form. 18/714 useless extension candidates. Maximal degree in co-relation 2507. Up to 229 conditions per place. [2023-12-09 15:35:43,322 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 105 selfloop transitions, 17 changer transitions 224/389 dead transitions. [2023-12-09 15:35:43,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 389 transitions, 8545 flow [2023-12-09 15:35:43,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 15:35:43,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 15:35:43,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 757 transitions. [2023-12-09 15:35:43,324 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7101313320825516 [2023-12-09 15:35:43,324 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 757 transitions. [2023-12-09 15:35:43,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 757 transitions. [2023-12-09 15:35:43,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:43,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 757 transitions. [2023-12-09 15:35:43,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 58.23076923076923) internal successors, (757), 13 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:43,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:43,328 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:43,328 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 128 predicate places. [2023-12-09 15:35:43,329 INFO L500 AbstractCegarLoop]: Abstraction has has 203 places, 389 transitions, 8545 flow [2023-12-09 15:35:43,329 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:43,329 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:43,329 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] [2023-12-09 15:35:43,329 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-09 15:35:43,329 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 15:35:43,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:43,330 INFO L85 PathProgramCache]: Analyzing trace with hash -313504416, now seen corresponding path program 4 times [2023-12-09 15:35:43,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:43,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542465331] [2023-12-09 15:35:43,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:43,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:43,563 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 15:35:43,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:43,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542465331] [2023-12-09 15:35:43,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542465331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:43,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:43,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:35:43,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165776442] [2023-12-09 15:35:43,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:43,564 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:35:43,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:43,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:35:43,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:35:43,566 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:35:43,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 389 transitions, 8545 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:43,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:43,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:35:43,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:43,958 INFO L124 PetriNetUnfolderBase]: 54/703 cut-off events. [2023-12-09 15:35:43,959 INFO L125 PetriNetUnfolderBase]: For 9983/10225 co-relation queries the response was YES. [2023-12-09 15:35:43,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5336 conditions, 703 events. 54/703 cut-off events. For 9983/10225 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5862 event pairs, 0 based on Foata normal form. 11/700 useless extension candidates. Maximal degree in co-relation 2690. Up to 226 conditions per place. [2023-12-09 15:35:43,964 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 101 selfloop transitions, 3 changer transitions 236/386 dead transitions. [2023-12-09 15:35:43,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 386 transitions, 9151 flow [2023-12-09 15:35:43,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:35:43,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:35:43,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1187 transitions. [2023-12-09 15:35:43,966 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.723780487804878 [2023-12-09 15:35:43,966 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1187 transitions. [2023-12-09 15:35:43,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1187 transitions. [2023-12-09 15:35:43,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:43,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1187 transitions. [2023-12-09 15:35:43,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 59.35) internal successors, (1187), 20 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:43,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 82.0) internal successors, (1722), 21 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:43,976 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 82.0) internal successors, (1722), 21 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:43,976 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 147 predicate places. [2023-12-09 15:35:43,977 INFO L500 AbstractCegarLoop]: Abstraction has has 222 places, 386 transitions, 9151 flow [2023-12-09 15:35:43,977 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:43,977 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:43,977 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] [2023-12-09 15:35:43,977 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-09 15:35:43,977 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 15:35:43,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:43,978 INFO L85 PathProgramCache]: Analyzing trace with hash 935184675, now seen corresponding path program 3 times [2023-12-09 15:35:43,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:43,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534355170] [2023-12-09 15:35:43,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:43,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:44,208 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 15:35:44,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:44,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534355170] [2023-12-09 15:35:44,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534355170] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:44,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:44,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:35:44,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494452087] [2023-12-09 15:35:44,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:44,210 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:35:44,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:44,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:35:44,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:35:44,211 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:35:44,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 386 transitions, 9151 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:44,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:44,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:35:44,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:44,724 INFO L124 PetriNetUnfolderBase]: 53/708 cut-off events. [2023-12-09 15:35:44,724 INFO L125 PetriNetUnfolderBase]: For 11649/11885 co-relation queries the response was YES. [2023-12-09 15:35:44,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5807 conditions, 708 events. 53/708 cut-off events. For 11649/11885 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5968 event pairs, 0 based on Foata normal form. 22/716 useless extension candidates. Maximal degree in co-relation 2891. Up to 231 conditions per place. [2023-12-09 15:35:44,729 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 90 selfloop transitions, 14 changer transitions 245/392 dead transitions. [2023-12-09 15:35:44,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 392 transitions, 10011 flow [2023-12-09 15:35:44,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:35:44,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:35:44,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1147 transitions. [2023-12-09 15:35:44,732 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.699390243902439 [2023-12-09 15:35:44,732 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1147 transitions. [2023-12-09 15:35:44,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1147 transitions. [2023-12-09 15:35:44,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:44,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1147 transitions. [2023-12-09 15:35:44,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 57.35) internal successors, (1147), 20 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:44,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 82.0) internal successors, (1722), 21 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:44,738 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 82.0) internal successors, (1722), 21 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:44,738 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 166 predicate places. [2023-12-09 15:35:44,738 INFO L500 AbstractCegarLoop]: Abstraction has has 241 places, 392 transitions, 10011 flow [2023-12-09 15:35:44,739 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:44,739 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:44,739 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] [2023-12-09 15:35:44,739 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-09 15:35:44,739 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 15:35:44,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:44,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1492079605, now seen corresponding path program 3 times [2023-12-09 15:35:44,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:44,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015802283] [2023-12-09 15:35:44,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:44,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:44,902 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 15:35:44,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:44,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015802283] [2023-12-09 15:35:44,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015802283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:44,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:44,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:35:44,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139069263] [2023-12-09 15:35:44,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:44,903 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:35:44,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:44,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:35:44,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:35:44,905 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 82 [2023-12-09 15:35:44,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 392 transitions, 10011 flow. Second operand has 8 states, 8 states have (on average 59.5) internal successors, (476), 8 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:44,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:44,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 82 [2023-12-09 15:35:44,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:45,187 INFO L124 PetriNetUnfolderBase]: 52/726 cut-off events. [2023-12-09 15:35:45,188 INFO L125 PetriNetUnfolderBase]: For 14574/14843 co-relation queries the response was YES. [2023-12-09 15:35:45,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6286 conditions, 726 events. 52/726 cut-off events. For 14574/14843 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 6193 event pairs, 0 based on Foata normal form. 5/716 useless extension candidates. Maximal degree in co-relation 3330. Up to 236 conditions per place. [2023-12-09 15:35:45,193 INFO L140 encePairwiseOnDemand]: 74/82 looper letters, 91 selfloop transitions, 4 changer transitions 253/398 dead transitions. [2023-12-09 15:35:45,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 398 transitions, 10873 flow [2023-12-09 15:35:45,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-09 15:35:45,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-12-09 15:35:45,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 745 transitions. [2023-12-09 15:35:45,195 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7571138211382114 [2023-12-09 15:35:45,195 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 745 transitions. [2023-12-09 15:35:45,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 745 transitions. [2023-12-09 15:35:45,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:45,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 745 transitions. [2023-12-09 15:35:45,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 62.083333333333336) internal successors, (745), 12 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:45,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:45,198 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:45,199 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 177 predicate places. [2023-12-09 15:35:45,199 INFO L500 AbstractCegarLoop]: Abstraction has has 252 places, 398 transitions, 10873 flow [2023-12-09 15:35:45,199 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 59.5) internal successors, (476), 8 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:45,199 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:45,199 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] [2023-12-09 15:35:45,200 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-09 15:35:45,200 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 15:35:45,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:45,200 INFO L85 PathProgramCache]: Analyzing trace with hash 754998895, now seen corresponding path program 4 times [2023-12-09 15:35:45,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:45,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007761387] [2023-12-09 15:35:45,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:45,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:45,429 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 15:35:45,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:45,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007761387] [2023-12-09 15:35:45,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007761387] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:45,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:45,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:35:45,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808875466] [2023-12-09 15:35:45,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:45,430 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:35:45,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:45,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:35:45,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:35:45,431 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:35:45,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 398 transitions, 10873 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:45,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:45,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:35:45,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:45,857 INFO L124 PetriNetUnfolderBase]: 52/732 cut-off events. [2023-12-09 15:35:45,857 INFO L125 PetriNetUnfolderBase]: For 16999/17304 co-relation queries the response was YES. [2023-12-09 15:35:45,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6645 conditions, 732 events. 52/732 cut-off events. For 16999/17304 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 6244 event pairs, 0 based on Foata normal form. 28/744 useless extension candidates. Maximal degree in co-relation 3547. Up to 233 conditions per place. [2023-12-09 15:35:45,863 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 78 selfloop transitions, 10 changer transitions 264/395 dead transitions. [2023-12-09 15:35:45,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 395 transitions, 11487 flow [2023-12-09 15:35:45,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:35:45,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:35:45,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1028 transitions. [2023-12-09 15:35:45,868 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6964769647696477 [2023-12-09 15:35:45,868 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1028 transitions. [2023-12-09 15:35:45,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1028 transitions. [2023-12-09 15:35:45,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:45,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1028 transitions. [2023-12-09 15:35:45,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 57.111111111111114) internal successors, (1028), 18 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:45,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 82.0) internal successors, (1558), 19 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:45,873 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 82.0) internal successors, (1558), 19 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:45,874 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 194 predicate places. [2023-12-09 15:35:45,874 INFO L500 AbstractCegarLoop]: Abstraction has has 269 places, 395 transitions, 11487 flow [2023-12-09 15:35:45,874 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:45,874 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:45,874 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] [2023-12-09 15:35:45,874 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-09 15:35:45,876 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 15:35:45,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:45,876 INFO L85 PathProgramCache]: Analyzing trace with hash -434243261, now seen corresponding path program 4 times [2023-12-09 15:35:45,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:45,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716479744] [2023-12-09 15:35:45,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:45,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:46,055 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 15:35:46,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:46,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716479744] [2023-12-09 15:35:46,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716479744] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:46,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:46,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:35:46,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495945374] [2023-12-09 15:35:46,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:46,058 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:35:46,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:46,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:35:46,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:35:46,059 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 82 [2023-12-09 15:35:46,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 395 transitions, 11487 flow. Second operand has 8 states, 8 states have (on average 59.5) internal successors, (476), 8 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:46,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:46,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 82 [2023-12-09 15:35:46,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:46,339 INFO L124 PetriNetUnfolderBase]: 52/715 cut-off events. [2023-12-09 15:35:46,339 INFO L125 PetriNetUnfolderBase]: For 18003/18288 co-relation queries the response was YES. [2023-12-09 15:35:46,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6958 conditions, 715 events. 52/715 cut-off events. For 18003/18288 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 6072 event pairs, 0 based on Foata normal form. 4/707 useless extension candidates. Maximal degree in co-relation 3470. Up to 230 conditions per place. [2023-12-09 15:35:46,349 INFO L140 encePairwiseOnDemand]: 74/82 looper letters, 68 selfloop transitions, 2 changer transitions 273/392 dead transitions. [2023-12-09 15:35:46,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 392 transitions, 12067 flow [2023-12-09 15:35:46,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-09 15:35:46,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-12-09 15:35:46,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 679 transitions. [2023-12-09 15:35:46,350 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7527716186252772 [2023-12-09 15:35:46,350 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 679 transitions. [2023-12-09 15:35:46,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 679 transitions. [2023-12-09 15:35:46,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:46,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 679 transitions. [2023-12-09 15:35:46,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 61.72727272727273) internal successors, (679), 11 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:46,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:46,354 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:46,354 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 204 predicate places. [2023-12-09 15:35:46,356 INFO L500 AbstractCegarLoop]: Abstraction has has 279 places, 392 transitions, 12067 flow [2023-12-09 15:35:46,356 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 59.5) internal successors, (476), 8 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:46,356 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:46,356 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] [2023-12-09 15:35:46,357 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-09 15:35:46,357 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 15:35:46,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:46,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1976128584, now seen corresponding path program 5 times [2023-12-09 15:35:46,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:46,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368690673] [2023-12-09 15:35:46,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:46,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:46,553 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 15:35:46,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:46,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368690673] [2023-12-09 15:35:46,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368690673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:46,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:46,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:35:46,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925424426] [2023-12-09 15:35:46,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:46,554 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:35:46,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:46,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:35:46,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:35:46,555 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:35:46,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 392 transitions, 12067 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:46,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:46,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:35:46,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:46,870 INFO L124 PetriNetUnfolderBase]: 54/826 cut-off events. [2023-12-09 15:35:46,870 INFO L125 PetriNetUnfolderBase]: For 25708/26231 co-relation queries the response was YES. [2023-12-09 15:35:46,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8348 conditions, 826 events. 54/826 cut-off events. For 25708/26231 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 7455 event pairs, 0 based on Foata normal form. 18/826 useless extension candidates. Maximal degree in co-relation 4418. Up to 270 conditions per place. [2023-12-09 15:35:46,876 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 82 selfloop transitions, 5 changer transitions 309/442 dead transitions. [2023-12-09 15:35:46,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 442 transitions, 14587 flow [2023-12-09 15:35:46,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-09 15:35:46,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-12-09 15:35:46,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 659 transitions. [2023-12-09 15:35:46,878 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7305986696230599 [2023-12-09 15:35:46,878 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 659 transitions. [2023-12-09 15:35:46,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 659 transitions. [2023-12-09 15:35:46,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:46,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 659 transitions. [2023-12-09 15:35:46,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 59.90909090909091) internal successors, (659), 11 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:46,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:46,894 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:46,894 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 214 predicate places. [2023-12-09 15:35:46,895 INFO L500 AbstractCegarLoop]: Abstraction has has 289 places, 442 transitions, 14587 flow [2023-12-09 15:35:46,895 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:46,895 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:46,895 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] [2023-12-09 15:35:46,895 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-09 15:35:46,895 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 15:35:46,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:46,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1651381190, now seen corresponding path program 5 times [2023-12-09 15:35:46,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:46,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418683181] [2023-12-09 15:35:46,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:46,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:47,114 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 15:35:47,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:47,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418683181] [2023-12-09 15:35:47,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418683181] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:47,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:47,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:35:47,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589473206] [2023-12-09 15:35:47,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:47,115 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:35:47,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:47,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:35:47,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:35:47,117 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:35:47,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 442 transitions, 14587 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:47,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:47,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:35:47,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:47,440 INFO L124 PetriNetUnfolderBase]: 54/853 cut-off events. [2023-12-09 15:35:47,440 INFO L125 PetriNetUnfolderBase]: For 29242/29887 co-relation queries the response was YES. [2023-12-09 15:35:47,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9194 conditions, 853 events. 54/853 cut-off events. For 29242/29887 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 7815 event pairs, 0 based on Foata normal form. 14/851 useless extension candidates. Maximal degree in co-relation 4801. Up to 292 conditions per place. [2023-12-09 15:35:47,447 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 85 selfloop transitions, 12 changer transitions 319/462 dead transitions. [2023-12-09 15:35:47,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 462 transitions, 16152 flow [2023-12-09 15:35:47,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-09 15:35:47,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-12-09 15:35:47,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 657 transitions. [2023-12-09 15:35:47,449 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7283813747228381 [2023-12-09 15:35:47,450 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 657 transitions. [2023-12-09 15:35:47,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 657 transitions. [2023-12-09 15:35:47,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:47,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 657 transitions. [2023-12-09 15:35:47,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 59.72727272727273) internal successors, (657), 11 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:47,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:47,453 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:47,454 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 224 predicate places. [2023-12-09 15:35:47,454 INFO L500 AbstractCegarLoop]: Abstraction has has 299 places, 462 transitions, 16152 flow [2023-12-09 15:35:47,454 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:47,454 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:47,454 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] [2023-12-09 15:35:47,454 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-09 15:35:47,455 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 15:35:47,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:47,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1425007034, now seen corresponding path program 6 times [2023-12-09 15:35:47,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:47,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596406291] [2023-12-09 15:35:47,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:47,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:47,633 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 15:35:47,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:47,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596406291] [2023-12-09 15:35:47,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596406291] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:47,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:47,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:35:47,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749062416] [2023-12-09 15:35:47,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:47,635 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:35:47,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:47,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:35:47,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:35:47,636 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:35:47,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 462 transitions, 16152 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:47,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:47,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:35:47,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:48,035 INFO L124 PetriNetUnfolderBase]: 53/864 cut-off events. [2023-12-09 15:35:48,036 INFO L125 PetriNetUnfolderBase]: For 32837/33522 co-relation queries the response was YES. [2023-12-09 15:35:48,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9777 conditions, 864 events. 53/864 cut-off events. For 32837/33522 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 7985 event pairs, 0 based on Foata normal form. 13/861 useless extension candidates. Maximal degree in co-relation 5057. Up to 297 conditions per place. [2023-12-09 15:35:48,042 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 89 selfloop transitions, 5 changer transitions 328/468 dead transitions. [2023-12-09 15:35:48,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 468 transitions, 17222 flow [2023-12-09 15:35:48,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-09 15:35:48,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-12-09 15:35:48,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 718 transitions. [2023-12-09 15:35:48,044 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7296747967479674 [2023-12-09 15:35:48,044 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 718 transitions. [2023-12-09 15:35:48,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 718 transitions. [2023-12-09 15:35:48,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:48,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 718 transitions. [2023-12-09 15:35:48,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 59.833333333333336) internal successors, (718), 12 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:48,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:48,047 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:48,048 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 235 predicate places. [2023-12-09 15:35:48,048 INFO L500 AbstractCegarLoop]: Abstraction has has 310 places, 468 transitions, 17222 flow [2023-12-09 15:35:48,048 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:48,048 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:48,049 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] [2023-12-09 15:35:48,049 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-09 15:35:48,049 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 15:35:48,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:48,049 INFO L85 PathProgramCache]: Analyzing trace with hash -325121710, now seen corresponding path program 6 times [2023-12-09 15:35:48,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:48,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824427079] [2023-12-09 15:35:48,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:48,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:48,262 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 15:35:48,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:48,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824427079] [2023-12-09 15:35:48,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824427079] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:48,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:48,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:35:48,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407638558] [2023-12-09 15:35:48,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:48,263 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:35:48,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:48,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:35:48,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:35:48,264 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:35:48,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 468 transitions, 17222 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:48,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:48,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:35:48,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:48,646 INFO L124 PetriNetUnfolderBase]: 53/853 cut-off events. [2023-12-09 15:35:48,646 INFO L125 PetriNetUnfolderBase]: For 34580/35256 co-relation queries the response was YES. [2023-12-09 15:35:48,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10169 conditions, 853 events. 53/853 cut-off events. For 34580/35256 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 7881 event pairs, 0 based on Foata normal form. 17/856 useless extension candidates. Maximal degree in co-relation 4472. Up to 297 conditions per place. [2023-12-09 15:35:48,653 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 73 selfloop transitions, 10 changer transitions 336/465 dead transitions. [2023-12-09 15:35:48,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 465 transitions, 17938 flow [2023-12-09 15:35:48,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-09 15:35:48,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-12-09 15:35:48,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 715 transitions. [2023-12-09 15:35:48,660 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7266260162601627 [2023-12-09 15:35:48,660 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 715 transitions. [2023-12-09 15:35:48,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 715 transitions. [2023-12-09 15:35:48,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:48,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 715 transitions. [2023-12-09 15:35:48,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 59.583333333333336) internal successors, (715), 12 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:48,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:48,668 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:48,668 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 246 predicate places. [2023-12-09 15:35:48,668 INFO L500 AbstractCegarLoop]: Abstraction has has 321 places, 465 transitions, 17938 flow [2023-12-09 15:35:48,668 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:48,668 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:48,668 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] [2023-12-09 15:35:48,669 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-09 15:35:48,669 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 15:35:48,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:48,669 INFO L85 PathProgramCache]: Analyzing trace with hash 2145291858, now seen corresponding path program 7 times [2023-12-09 15:35:48,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:48,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160611427] [2023-12-09 15:35:48,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:48,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:48,838 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 15:35:48,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:48,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160611427] [2023-12-09 15:35:48,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160611427] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:48,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:48,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:35:48,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203081943] [2023-12-09 15:35:48,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:48,839 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:35:48,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:48,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:35:48,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:35:48,841 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:35:48,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 465 transitions, 17938 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:48,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:48,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:35:48,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:49,240 INFO L124 PetriNetUnfolderBase]: 53/850 cut-off events. [2023-12-09 15:35:49,241 INFO L125 PetriNetUnfolderBase]: For 38349/39126 co-relation queries the response was YES. [2023-12-09 15:35:49,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10562 conditions, 850 events. 53/850 cut-off events. For 38349/39126 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7835 event pairs, 0 based on Foata normal form. 10/848 useless extension candidates. Maximal degree in co-relation 4667. Up to 294 conditions per place. [2023-12-09 15:35:49,246 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 69 selfloop transitions, 2 changer transitions 345/462 dead transitions. [2023-12-09 15:35:49,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 462 transitions, 18636 flow [2023-12-09 15:35:49,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 15:35:49,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 15:35:49,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 776 transitions. [2023-12-09 15:35:49,248 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7279549718574109 [2023-12-09 15:35:49,248 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 776 transitions. [2023-12-09 15:35:49,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 776 transitions. [2023-12-09 15:35:49,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:49,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 776 transitions. [2023-12-09 15:35:49,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 59.69230769230769) internal successors, (776), 13 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:49,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:49,254 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:49,255 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 258 predicate places. [2023-12-09 15:35:49,256 INFO L500 AbstractCegarLoop]: Abstraction has has 333 places, 462 transitions, 18636 flow [2023-12-09 15:35:49,256 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:49,256 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:49,256 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] [2023-12-09 15:35:49,257 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-09 15:35:49,257 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 15:35:49,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:49,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1199389502, now seen corresponding path program 7 times [2023-12-09 15:35:49,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:49,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230820665] [2023-12-09 15:35:49,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:49,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:49,431 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 15:35:49,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:49,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230820665] [2023-12-09 15:35:49,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230820665] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:49,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:49,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:35:49,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924761261] [2023-12-09 15:35:49,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:49,432 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:35:49,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:49,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:35:49,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:35:49,433 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:35:49,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 462 transitions, 18636 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:49,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:49,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:35:49,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:49,809 INFO L124 PetriNetUnfolderBase]: 53/881 cut-off events. [2023-12-09 15:35:49,809 INFO L125 PetriNetUnfolderBase]: For 45807/46645 co-relation queries the response was YES. [2023-12-09 15:35:49,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11251 conditions, 881 events. 53/881 cut-off events. For 45807/46645 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 8227 event pairs, 0 based on Foata normal form. 8/872 useless extension candidates. Maximal degree in co-relation 5866. Up to 302 conditions per place. [2023-12-09 15:35:49,815 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 63 selfloop transitions, 5 changer transitions 356/470 dead transitions. [2023-12-09 15:35:49,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 470 transitions, 19843 flow [2023-12-09 15:35:49,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-09 15:35:49,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-12-09 15:35:49,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 659 transitions. [2023-12-09 15:35:49,817 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7305986696230599 [2023-12-09 15:35:49,817 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 659 transitions. [2023-12-09 15:35:49,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 659 transitions. [2023-12-09 15:35:49,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:49,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 659 transitions. [2023-12-09 15:35:49,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 59.90909090909091) internal successors, (659), 11 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:49,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:49,819 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:49,820 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 268 predicate places. [2023-12-09 15:35:49,820 INFO L500 AbstractCegarLoop]: Abstraction has has 343 places, 470 transitions, 19843 flow [2023-12-09 15:35:49,820 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:49,820 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:49,820 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] [2023-12-09 15:35:49,820 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-09 15:35:49,821 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 15:35:49,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:49,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1908446567, now seen corresponding path program 5 times [2023-12-09 15:35:49,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:49,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921509903] [2023-12-09 15:35:49,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:49,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:50,002 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 15:35:50,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:50,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921509903] [2023-12-09 15:35:50,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921509903] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:50,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:50,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:35:50,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213476907] [2023-12-09 15:35:50,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:50,003 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:35:50,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:50,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:35:50,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:35:50,005 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:35:50,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 470 transitions, 19843 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:50,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:50,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:35:50,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:50,472 INFO L124 PetriNetUnfolderBase]: 52/902 cut-off events. [2023-12-09 15:35:50,473 INFO L125 PetriNetUnfolderBase]: For 49812/50714 co-relation queries the response was YES. [2023-12-09 15:35:50,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12118 conditions, 902 events. 52/902 cut-off events. For 49812/50714 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8551 event pairs, 0 based on Foata normal form. 32/920 useless extension candidates. Maximal degree in co-relation 5178. Up to 309 conditions per place. [2023-12-09 15:35:50,479 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 56 selfloop transitions, 16 changer transitions 374/489 dead transitions. [2023-12-09 15:35:50,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 489 transitions, 21555 flow [2023-12-09 15:35:50,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:35:50,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:35:50,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 854 transitions. [2023-12-09 15:35:50,481 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6943089430894309 [2023-12-09 15:35:50,481 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 854 transitions. [2023-12-09 15:35:50,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 854 transitions. [2023-12-09 15:35:50,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:50,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 854 transitions. [2023-12-09 15:35:50,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 56.93333333333333) internal successors, (854), 15 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:50,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 82.0) internal successors, (1312), 16 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:50,484 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 82.0) internal successors, (1312), 16 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:50,485 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 282 predicate places. [2023-12-09 15:35:50,485 INFO L500 AbstractCegarLoop]: Abstraction has has 357 places, 489 transitions, 21555 flow [2023-12-09 15:35:50,485 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:50,485 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:50,486 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] [2023-12-09 15:35:50,486 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-09 15:35:50,487 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 15:35:50,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:50,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1719323296, now seen corresponding path program 8 times [2023-12-09 15:35:50,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:50,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538480377] [2023-12-09 15:35:50,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:50,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:50,645 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 15:35:50,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:50,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538480377] [2023-12-09 15:35:50,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538480377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:50,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:50,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:35:50,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816537681] [2023-12-09 15:35:50,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:50,646 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:35:50,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:50,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:35:50,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:35:50,647 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:35:50,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 489 transitions, 21555 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:50,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:50,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:35:50,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:51,081 INFO L124 PetriNetUnfolderBase]: 51/912 cut-off events. [2023-12-09 15:35:51,082 INFO L125 PetriNetUnfolderBase]: For 53609/54339 co-relation queries the response was YES. [2023-12-09 15:35:51,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12756 conditions, 912 events. 51/912 cut-off events. For 53609/54339 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 8686 event pairs, 0 based on Foata normal form. 10/907 useless extension candidates. Maximal degree in co-relation 5412. Up to 314 conditions per place. [2023-12-09 15:35:51,090 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 59 selfloop transitions, 5 changer transitions 383/495 dead transitions. [2023-12-09 15:35:51,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 495 transitions, 22739 flow [2023-12-09 15:35:51,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 15:35:51,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 15:35:51,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 779 transitions. [2023-12-09 15:35:51,091 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7307692307692307 [2023-12-09 15:35:51,091 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 779 transitions. [2023-12-09 15:35:51,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 779 transitions. [2023-12-09 15:35:51,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:51,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 779 transitions. [2023-12-09 15:35:51,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 59.92307692307692) internal successors, (779), 13 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:51,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:51,094 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:51,095 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 294 predicate places. [2023-12-09 15:35:51,095 INFO L500 AbstractCegarLoop]: Abstraction has has 369 places, 495 transitions, 22739 flow [2023-12-09 15:35:51,095 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:51,095 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:51,095 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] [2023-12-09 15:35:51,095 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-09 15:35:51,095 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 15:35:51,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:51,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1036247881, now seen corresponding path program 6 times [2023-12-09 15:35:51,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:51,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273077088] [2023-12-09 15:35:51,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:51,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:51,307 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 15:35:51,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:51,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273077088] [2023-12-09 15:35:51,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273077088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:51,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:51,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:35:51,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329029962] [2023-12-09 15:35:51,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:51,308 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:35:51,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:51,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:35:51,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:35:51,309 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:35:51,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 495 transitions, 22739 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:51,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:51,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:35:51,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:51,849 INFO L124 PetriNetUnfolderBase]: 68/1290 cut-off events. [2023-12-09 15:35:51,849 INFO L125 PetriNetUnfolderBase]: For 81852/82888 co-relation queries the response was YES. [2023-12-09 15:35:51,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19008 conditions, 1290 events. 68/1290 cut-off events. For 81852/82888 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 13667 event pairs, 0 based on Foata normal form. 14/1286 useless extension candidates. Maximal degree in co-relation 5732. Up to 460 conditions per place. [2023-12-09 15:35:51,860 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 88 selfloop transitions, 12 changer transitions 550/693 dead transitions. [2023-12-09 15:35:51,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 693 transitions, 34098 flow [2023-12-09 15:35:51,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 15:35:51,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 15:35:51,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 758 transitions. [2023-12-09 15:35:51,862 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7110694183864915 [2023-12-09 15:35:51,862 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 758 transitions. [2023-12-09 15:35:51,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 758 transitions. [2023-12-09 15:35:51,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:51,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 758 transitions. [2023-12-09 15:35:51,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 58.30769230769231) internal successors, (758), 13 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:51,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:51,865 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:51,866 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 306 predicate places. [2023-12-09 15:35:51,866 INFO L500 AbstractCegarLoop]: Abstraction has has 381 places, 693 transitions, 34098 flow [2023-12-09 15:35:51,866 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:51,866 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:51,867 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] [2023-12-09 15:35:51,867 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-09 15:35:51,867 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 15:35:51,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:51,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1262816850, now seen corresponding path program 9 times [2023-12-09 15:35:51,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:51,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684704325] [2023-12-09 15:35:51,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:51,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:52,028 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 15:35:52,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:52,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684704325] [2023-12-09 15:35:52,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684704325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:52,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:52,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:35:52,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106891853] [2023-12-09 15:35:52,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:52,030 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:35:52,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:52,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:35:52,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:35:52,031 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:35:52,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 693 transitions, 34098 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:52,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:52,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:35:52,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:52,704 INFO L124 PetriNetUnfolderBase]: 68/1278 cut-off events. [2023-12-09 15:35:52,705 INFO L125 PetriNetUnfolderBase]: For 88843/89999 co-relation queries the response was YES. [2023-12-09 15:35:52,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19541 conditions, 1278 events. 68/1278 cut-off events. For 88843/89999 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 13544 event pairs, 0 based on Foata normal form. 26/1288 useless extension candidates. Maximal degree in co-relation 10089. Up to 454 conditions per place. [2023-12-09 15:35:52,715 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 69 selfloop transitions, 2 changer transitions 568/687 dead transitions. [2023-12-09 15:35:52,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 687 transitions, 35060 flow [2023-12-09 15:35:52,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-09 15:35:52,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-12-09 15:35:52,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 716 transitions. [2023-12-09 15:35:52,718 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7276422764227642 [2023-12-09 15:35:52,718 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 716 transitions. [2023-12-09 15:35:52,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 716 transitions. [2023-12-09 15:35:52,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:52,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 716 transitions. [2023-12-09 15:35:52,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 59.666666666666664) internal successors, (716), 12 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:52,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:52,721 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:52,722 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 317 predicate places. [2023-12-09 15:35:52,722 INFO L500 AbstractCegarLoop]: Abstraction has has 392 places, 687 transitions, 35060 flow [2023-12-09 15:35:52,722 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:52,722 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:52,722 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] [2023-12-09 15:35:52,723 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-09 15:35:52,723 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 15:35:52,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:52,723 INFO L85 PathProgramCache]: Analyzing trace with hash 981566959, now seen corresponding path program 7 times [2023-12-09 15:35:52,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:52,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745251710] [2023-12-09 15:35:52,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:52,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:52,924 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 15:35:52,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:52,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745251710] [2023-12-09 15:35:52,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745251710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:52,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:52,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:35:52,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003575954] [2023-12-09 15:35:52,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:52,925 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:35:52,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:52,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:35:52,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:35:52,926 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:35:52,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 687 transitions, 35060 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:52,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:52,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:35:52,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:53,585 INFO L124 PetriNetUnfolderBase]: 68/1315 cut-off events. [2023-12-09 15:35:53,585 INFO L125 PetriNetUnfolderBase]: For 97271/98569 co-relation queries the response was YES. [2023-12-09 15:35:53,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20853 conditions, 1315 events. 68/1315 cut-off events. For 97271/98569 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 14064 event pairs, 0 based on Foata normal form. 20/1319 useless extension candidates. Maximal degree in co-relation 6388. Up to 472 conditions per place. [2023-12-09 15:35:53,596 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 77 selfloop transitions, 10 changer transitions 579/707 dead transitions. [2023-12-09 15:35:53,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 707 transitions, 37483 flow [2023-12-09 15:35:53,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-09 15:35:53,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-12-09 15:35:53,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 819 transitions. [2023-12-09 15:35:53,597 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7134146341463414 [2023-12-09 15:35:53,597 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 819 transitions. [2023-12-09 15:35:53,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 819 transitions. [2023-12-09 15:35:53,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:53,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 819 transitions. [2023-12-09 15:35:53,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 58.5) internal successors, (819), 14 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:53,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 82.0) internal successors, (1230), 15 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:53,601 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 82.0) internal successors, (1230), 15 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:53,601 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 330 predicate places. [2023-12-09 15:35:53,601 INFO L500 AbstractCegarLoop]: Abstraction has has 405 places, 707 transitions, 37483 flow [2023-12-09 15:35:53,602 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:53,602 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:53,602 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] [2023-12-09 15:35:53,602 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-09 15:35:53,602 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 15:35:53,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:53,602 INFO L85 PathProgramCache]: Analyzing trace with hash 948055417, now seen corresponding path program 8 times [2023-12-09 15:35:53,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:53,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376405338] [2023-12-09 15:35:53,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:53,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:53,825 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 15:35:53,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:53,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376405338] [2023-12-09 15:35:53,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376405338] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:53,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:53,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:35:53,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397708506] [2023-12-09 15:35:53,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:53,826 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:35:53,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:53,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:35:53,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:35:53,827 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:35:53,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 707 transitions, 37483 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:53,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:53,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:35:53,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:54,420 INFO L124 PetriNetUnfolderBase]: 68/1314 cut-off events. [2023-12-09 15:35:54,421 INFO L125 PetriNetUnfolderBase]: For 105841/107307 co-relation queries the response was YES. [2023-12-09 15:35:54,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21492 conditions, 1314 events. 68/1314 cut-off events. For 105841/107307 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 14067 event pairs, 0 based on Foata normal form. 28/1326 useless extension candidates. Maximal degree in co-relation 11056. Up to 469 conditions per place. [2023-12-09 15:35:54,433 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 67 selfloop transitions, 7 changer transitions 587/704 dead transitions. [2023-12-09 15:35:54,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 704 transitions, 38637 flow [2023-12-09 15:35:54,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:35:54,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:35:54,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 874 transitions. [2023-12-09 15:35:54,436 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7105691056910569 [2023-12-09 15:35:54,436 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 874 transitions. [2023-12-09 15:35:54,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 874 transitions. [2023-12-09 15:35:54,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:54,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 874 transitions. [2023-12-09 15:35:54,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 58.266666666666666) internal successors, (874), 15 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:54,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 82.0) internal successors, (1312), 16 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:54,439 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 82.0) internal successors, (1312), 16 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:54,442 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 344 predicate places. [2023-12-09 15:35:54,443 INFO L500 AbstractCegarLoop]: Abstraction has has 419 places, 704 transitions, 38637 flow [2023-12-09 15:35:54,444 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:54,444 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:54,445 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] [2023-12-09 15:35:54,445 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-09 15:35:54,445 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 15:35:54,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:54,445 INFO L85 PathProgramCache]: Analyzing trace with hash 480034241, now seen corresponding path program 9 times [2023-12-09 15:35:54,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:54,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742659300] [2023-12-09 15:35:54,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:54,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:54,624 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 15:35:54,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:54,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742659300] [2023-12-09 15:35:54,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742659300] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:54,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:54,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:35:54,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528927103] [2023-12-09 15:35:54,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:54,625 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:35:54,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:54,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:35:54,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:35:54,626 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:35:54,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 704 transitions, 38637 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:54,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:54,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:35:54,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:55,436 INFO L124 PetriNetUnfolderBase]: 67/1324 cut-off events. [2023-12-09 15:35:55,437 INFO L125 PetriNetUnfolderBase]: For 113450/114904 co-relation queries the response was YES. [2023-12-09 15:35:55,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22399 conditions, 1324 events. 67/1324 cut-off events. For 113450/114904 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 14269 event pairs, 0 based on Foata normal form. 24/1333 useless extension candidates. Maximal degree in co-relation 6861. Up to 474 conditions per place. [2023-12-09 15:35:55,445 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 62 selfloop transitions, 9 changer transitions 598/710 dead transitions. [2023-12-09 15:35:55,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 710 transitions, 40325 flow [2023-12-09 15:35:55,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 15:35:55,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 15:35:55,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1205 transitions. [2023-12-09 15:35:55,451 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6997677119628339 [2023-12-09 15:35:55,451 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1205 transitions. [2023-12-09 15:35:55,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1205 transitions. [2023-12-09 15:35:55,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:55,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1205 transitions. [2023-12-09 15:35:55,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 57.38095238095238) internal successors, (1205), 21 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:55,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 82.0) internal successors, (1804), 22 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:55,456 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 82.0) internal successors, (1804), 22 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:55,458 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 364 predicate places. [2023-12-09 15:35:55,458 INFO L500 AbstractCegarLoop]: Abstraction has has 439 places, 710 transitions, 40325 flow [2023-12-09 15:35:55,458 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:55,458 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:55,458 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] [2023-12-09 15:35:55,458 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-09 15:35:55,458 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 15:35:55,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:55,459 INFO L85 PathProgramCache]: Analyzing trace with hash 601005295, now seen corresponding path program 10 times [2023-12-09 15:35:55,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:55,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752667598] [2023-12-09 15:35:55,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:55,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:55,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:35:55,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:55,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752667598] [2023-12-09 15:35:55,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752667598] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:55,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:55,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:35:55,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120539314] [2023-12-09 15:35:55,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:55,626 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:35:55,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:55,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:35:55,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:35:55,628 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:35:55,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 710 transitions, 40325 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:55,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:55,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:35:55,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:56,407 INFO L124 PetriNetUnfolderBase]: 66/1336 cut-off events. [2023-12-09 15:35:56,407 INFO L125 PetriNetUnfolderBase]: For 122623/124100 co-relation queries the response was YES. [2023-12-09 15:35:56,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23350 conditions, 1336 events. 66/1336 cut-off events. For 122623/124100 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 14438 event pairs, 0 based on Foata normal form. 26/1347 useless extension candidates. Maximal degree in co-relation 7147. Up to 480 conditions per place. [2023-12-09 15:35:56,418 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 62 selfloop transitions, 7 changer transitions 607/717 dead transitions. [2023-12-09 15:35:56,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 717 transitions, 42099 flow [2023-12-09 15:35:56,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:35:56,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:35:56,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1323 transitions. [2023-12-09 15:35:56,420 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7014846235418876 [2023-12-09 15:35:56,420 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 1323 transitions. [2023-12-09 15:35:56,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 1323 transitions. [2023-12-09 15:35:56,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:56,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 1323 transitions. [2023-12-09 15:35:56,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 57.52173913043478) internal successors, (1323), 23 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:56,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 82.0) internal successors, (1968), 24 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:56,425 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 82.0) internal successors, (1968), 24 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:56,426 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 386 predicate places. [2023-12-09 15:35:56,426 INFO L500 AbstractCegarLoop]: Abstraction has has 461 places, 717 transitions, 42099 flow [2023-12-09 15:35:56,426 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:56,426 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:56,426 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] [2023-12-09 15:35:56,426 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-09 15:35:56,426 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 15:35:56,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:56,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1156539111, now seen corresponding path program 11 times [2023-12-09 15:35:56,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:56,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042624049] [2023-12-09 15:35:56,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:56,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:56,589 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 15:35:56,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:56,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042624049] [2023-12-09 15:35:56,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042624049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:56,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:56,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:35:56,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779614850] [2023-12-09 15:35:56,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:56,590 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:35:56,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:56,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:35:56,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:35:56,591 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:35:56,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 717 transitions, 42099 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:56,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:56,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:35:56,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:57,344 INFO L124 PetriNetUnfolderBase]: 66/1331 cut-off events. [2023-12-09 15:35:57,344 INFO L125 PetriNetUnfolderBase]: For 132525/134114 co-relation queries the response was YES. [2023-12-09 15:35:57,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23986 conditions, 1331 events. 66/1331 cut-off events. For 132525/134114 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 14418 event pairs, 0 based on Foata normal form. 54/1370 useless extension candidates. Maximal degree in co-relation 12258. Up to 477 conditions per place. [2023-12-09 15:35:57,354 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 51 selfloop transitions, 3 changer transitions 619/714 dead transitions. [2023-12-09 15:35:57,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 714 transitions, 43255 flow [2023-12-09 15:35:57,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:35:57,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:35:57,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1088 transitions. [2023-12-09 15:35:57,356 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6983311938382541 [2023-12-09 15:35:57,356 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1088 transitions. [2023-12-09 15:35:57,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1088 transitions. [2023-12-09 15:35:57,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:57,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1088 transitions. [2023-12-09 15:35:57,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 57.26315789473684) internal successors, (1088), 19 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:57,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 82.0) internal successors, (1640), 20 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:57,360 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 82.0) internal successors, (1640), 20 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:57,360 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 404 predicate places. [2023-12-09 15:35:57,360 INFO L500 AbstractCegarLoop]: Abstraction has has 479 places, 714 transitions, 43255 flow [2023-12-09 15:35:57,360 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:57,360 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:57,360 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] [2023-12-09 15:35:57,361 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-09 15:35:57,361 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 15:35:57,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:57,361 INFO L85 PathProgramCache]: Analyzing trace with hash -824165223, now seen corresponding path program 12 times [2023-12-09 15:35:57,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:57,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591507951] [2023-12-09 15:35:57,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:57,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:57,554 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 15:35:57,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:57,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591507951] [2023-12-09 15:35:57,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591507951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:57,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:57,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:35:57,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732265648] [2023-12-09 15:35:57,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:57,555 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:35:57,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:57,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:35:57,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:35:57,556 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:35:57,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 714 transitions, 43255 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:57,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:57,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:35:57,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:58,318 INFO L124 PetriNetUnfolderBase]: 68/1425 cut-off events. [2023-12-09 15:35:58,318 INFO L125 PetriNetUnfolderBase]: For 151344/153168 co-relation queries the response was YES. [2023-12-09 15:35:58,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26487 conditions, 1425 events. 68/1425 cut-off events. For 151344/153168 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 15746 event pairs, 0 based on Foata normal form. 32/1441 useless extension candidates. Maximal degree in co-relation 13462. Up to 517 conditions per place. [2023-12-09 15:35:58,329 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 59 selfloop transitions, 9 changer transitions 655/764 dead transitions. [2023-12-09 15:35:58,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 764 transitions, 47933 flow [2023-12-09 15:35:58,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 15:35:58,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 15:35:58,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 758 transitions. [2023-12-09 15:35:58,330 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7110694183864915 [2023-12-09 15:35:58,330 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 758 transitions. [2023-12-09 15:35:58,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 758 transitions. [2023-12-09 15:35:58,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:58,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 758 transitions. [2023-12-09 15:35:58,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 58.30769230769231) internal successors, (758), 13 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:58,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:58,334 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:58,334 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 416 predicate places. [2023-12-09 15:35:58,334 INFO L500 AbstractCegarLoop]: Abstraction has has 491 places, 764 transitions, 47933 flow [2023-12-09 15:35:58,334 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:58,334 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:58,335 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] [2023-12-09 15:35:58,335 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-09 15:35:58,335 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 15:35:58,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:58,335 INFO L85 PathProgramCache]: Analyzing trace with hash -2132062983, now seen corresponding path program 13 times [2023-12-09 15:35:58,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:58,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212951720] [2023-12-09 15:35:58,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:58,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:58,526 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 15:35:58,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:58,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212951720] [2023-12-09 15:35:58,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212951720] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:58,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:58,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:35:58,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244907193] [2023-12-09 15:35:58,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:58,527 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:35:58,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:58,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:35:58,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:35:58,528 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:35:58,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 764 transitions, 47933 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:58,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:58,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:35:58,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:35:59,260 INFO L124 PetriNetUnfolderBase]: 68/1458 cut-off events. [2023-12-09 15:35:59,260 INFO L125 PetriNetUnfolderBase]: For 161711/163547 co-relation queries the response was YES. [2023-12-09 15:35:59,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28001 conditions, 1458 events. 68/1458 cut-off events. For 161711/163547 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 16200 event pairs, 0 based on Foata normal form. 16/1458 useless extension candidates. Maximal degree in co-relation 8091. Up to 535 conditions per place. [2023-12-09 15:35:59,271 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 69 selfloop transitions, 9 changer transitions 665/784 dead transitions. [2023-12-09 15:35:59,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 784 transitions, 50750 flow [2023-12-09 15:35:59,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-09 15:35:59,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-12-09 15:35:59,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 818 transitions. [2023-12-09 15:35:59,272 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7125435540069687 [2023-12-09 15:35:59,273 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 818 transitions. [2023-12-09 15:35:59,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 818 transitions. [2023-12-09 15:35:59,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:35:59,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 818 transitions. [2023-12-09 15:35:59,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 58.42857142857143) internal successors, (818), 14 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:59,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 82.0) internal successors, (1230), 15 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:59,275 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 82.0) internal successors, (1230), 15 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:59,276 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 429 predicate places. [2023-12-09 15:35:59,276 INFO L500 AbstractCegarLoop]: Abstraction has has 504 places, 784 transitions, 50750 flow [2023-12-09 15:35:59,276 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:59,276 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:35:59,276 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] [2023-12-09 15:35:59,276 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-09 15:35:59,276 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 15:35:59,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:35:59,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1015071377, now seen corresponding path program 14 times [2023-12-09 15:35:59,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:35:59,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989958995] [2023-12-09 15:35:59,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:35:59,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:35:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:35:59,446 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 15:35:59,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:35:59,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989958995] [2023-12-09 15:35:59,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989958995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:35:59,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:35:59,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:35:59,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633710830] [2023-12-09 15:35:59,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:35:59,448 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:35:59,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:35:59,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:35:59,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:35:59,449 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:35:59,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 784 transitions, 50750 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:35:59,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:35:59,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:35:59,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:00,347 INFO L124 PetriNetUnfolderBase]: 68/1455 cut-off events. [2023-12-09 15:36:00,347 INFO L125 PetriNetUnfolderBase]: For 173541/175515 co-relation queries the response was YES. [2023-12-09 15:36:00,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28700 conditions, 1455 events. 68/1455 cut-off events. For 173541/175515 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 16208 event pairs, 0 based on Foata normal form. 22/1461 useless extension candidates. Maximal degree in co-relation 14541. Up to 532 conditions per place. [2023-12-09 15:36:00,357 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 60 selfloop transitions, 6 changer transitions 674/781 dead transitions. [2023-12-09 15:36:00,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 781 transitions, 52022 flow [2023-12-09 15:36:00,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:36:00,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:36:00,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 874 transitions. [2023-12-09 15:36:00,359 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7105691056910569 [2023-12-09 15:36:00,359 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 874 transitions. [2023-12-09 15:36:00,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 874 transitions. [2023-12-09 15:36:00,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:00,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 874 transitions. [2023-12-09 15:36:00,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 58.266666666666666) internal successors, (874), 15 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:00,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 82.0) internal successors, (1312), 16 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:00,362 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 82.0) internal successors, (1312), 16 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:00,362 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 443 predicate places. [2023-12-09 15:36:00,363 INFO L500 AbstractCegarLoop]: Abstraction has has 518 places, 781 transitions, 52022 flow [2023-12-09 15:36:00,363 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:00,363 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:00,363 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] [2023-12-09 15:36:00,363 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-09 15:36:00,363 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 15:36:00,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:00,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1158538471, now seen corresponding path program 15 times [2023-12-09 15:36:00,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:00,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718672661] [2023-12-09 15:36:00,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:00,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:00,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:00,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:00,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718672661] [2023-12-09 15:36:00,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718672661] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:00,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:00,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:36:00,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243740531] [2023-12-09 15:36:00,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:00,520 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:36:00,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:00,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:36:00,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:36:00,521 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:36:00,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 518 places, 781 transitions, 52022 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:00,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:00,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:36:00,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:01,336 INFO L124 PetriNetUnfolderBase]: 68/1475 cut-off events. [2023-12-09 15:36:01,336 INFO L125 PetriNetUnfolderBase]: For 185677/187721 co-relation queries the response was YES. [2023-12-09 15:36:01,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29839 conditions, 1475 events. 68/1475 cut-off events. For 185677/187721 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 16512 event pairs, 0 based on Foata normal form. 8/1467 useless extension candidates. Maximal degree in co-relation 8595. Up to 540 conditions per place. [2023-12-09 15:36:01,348 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 48 selfloop transitions, 15 changer transitions 685/789 dead transitions. [2023-12-09 15:36:01,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 536 places, 789 transitions, 54083 flow [2023-12-09 15:36:01,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:36:01,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:36:01,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1087 transitions. [2023-12-09 15:36:01,350 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6976893453145058 [2023-12-09 15:36:01,351 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1087 transitions. [2023-12-09 15:36:01,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1087 transitions. [2023-12-09 15:36:01,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:01,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1087 transitions. [2023-12-09 15:36:01,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 57.21052631578947) internal successors, (1087), 19 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:01,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 82.0) internal successors, (1640), 20 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:01,354 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 82.0) internal successors, (1640), 20 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:01,354 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 461 predicate places. [2023-12-09 15:36:01,354 INFO L500 AbstractCegarLoop]: Abstraction has has 536 places, 789 transitions, 54083 flow [2023-12-09 15:36:01,355 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:01,355 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:01,355 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] [2023-12-09 15:36:01,355 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-09 15:36:01,355 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 15:36:01,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:01,355 INFO L85 PathProgramCache]: Analyzing trace with hash -340106727, now seen corresponding path program 16 times [2023-12-09 15:36:01,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:01,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055415850] [2023-12-09 15:36:01,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:01,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:01,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:01,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:01,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055415850] [2023-12-09 15:36:01,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055415850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:01,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:01,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:36:01,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11554502] [2023-12-09 15:36:01,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:01,508 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:36:01,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:01,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:36:01,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:36:01,509 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:36:01,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 789 transitions, 54083 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:01,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:01,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:36:01,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:02,534 INFO L124 PetriNetUnfolderBase]: 67/1487 cut-off events. [2023-12-09 15:36:02,535 INFO L125 PetriNetUnfolderBase]: For 200673/202941 co-relation queries the response was YES. [2023-12-09 15:36:02,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30879 conditions, 1487 events. 67/1487 cut-off events. For 200673/202941 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 16742 event pairs, 0 based on Foata normal form. 24/1494 useless extension candidates. Maximal degree in co-relation 15546. Up to 545 conditions per place. [2023-12-09 15:36:02,544 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 50 selfloop transitions, 11 changer transitions 693/795 dead transitions. [2023-12-09 15:36:02,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 556 places, 795 transitions, 56025 flow [2023-12-09 15:36:02,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 15:36:02,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 15:36:02,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1206 transitions. [2023-12-09 15:36:02,549 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7003484320557491 [2023-12-09 15:36:02,549 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1206 transitions. [2023-12-09 15:36:02,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1206 transitions. [2023-12-09 15:36:02,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:02,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1206 transitions. [2023-12-09 15:36:02,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 57.42857142857143) internal successors, (1206), 21 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:02,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 82.0) internal successors, (1804), 22 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:02,553 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 82.0) internal successors, (1804), 22 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:02,554 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 481 predicate places. [2023-12-09 15:36:02,554 INFO L500 AbstractCegarLoop]: Abstraction has has 556 places, 795 transitions, 56025 flow [2023-12-09 15:36:02,554 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:02,554 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:02,554 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] [2023-12-09 15:36:02,554 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-09 15:36:02,554 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 15:36:02,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:02,555 INFO L85 PathProgramCache]: Analyzing trace with hash 589102815, now seen corresponding path program 17 times [2023-12-09 15:36:02,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:02,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559819166] [2023-12-09 15:36:02,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:02,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:02,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:02,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:02,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559819166] [2023-12-09 15:36:02,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559819166] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:02,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:02,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:36:02,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407771231] [2023-12-09 15:36:02,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:02,710 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:36:02,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:02,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:36:02,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:36:02,711 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:36:02,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 795 transitions, 56025 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:02,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:02,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:36:02,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:03,622 INFO L124 PetriNetUnfolderBase]: 67/1483 cut-off events. [2023-12-09 15:36:03,623 INFO L125 PetriNetUnfolderBase]: For 211934/214262 co-relation queries the response was YES. [2023-12-09 15:36:03,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31580 conditions, 1483 events. 67/1483 cut-off events. For 211934/214262 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 16656 event pairs, 0 based on Foata normal form. 24/1491 useless extension candidates. Maximal degree in co-relation 15952. Up to 542 conditions per place. [2023-12-09 15:36:03,636 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 40 selfloop transitions, 7 changer transitions 704/792 dead transitions. [2023-12-09 15:36:03,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 792 transitions, 57301 flow [2023-12-09 15:36:03,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:36:03,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:36:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1319 transitions. [2023-12-09 15:36:03,638 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6993637327677624 [2023-12-09 15:36:03,638 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 1319 transitions. [2023-12-09 15:36:03,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 1319 transitions. [2023-12-09 15:36:03,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:03,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 1319 transitions. [2023-12-09 15:36:03,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 57.34782608695652) internal successors, (1319), 23 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:03,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 82.0) internal successors, (1968), 24 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:03,641 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 82.0) internal successors, (1968), 24 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:03,642 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 503 predicate places. [2023-12-09 15:36:03,642 INFO L500 AbstractCegarLoop]: Abstraction has has 578 places, 792 transitions, 57301 flow [2023-12-09 15:36:03,642 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:03,642 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:03,642 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] [2023-12-09 15:36:03,642 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-09 15:36:03,643 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 15:36:03,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:03,648 INFO L85 PathProgramCache]: Analyzing trace with hash 547028378, now seen corresponding path program 8 times [2023-12-09 15:36:03,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:03,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103041429] [2023-12-09 15:36:03,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:03,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:03,801 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 15:36:03,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:03,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103041429] [2023-12-09 15:36:03,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103041429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:03,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:03,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:36:03,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009033002] [2023-12-09 15:36:03,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:03,803 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:36:03,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:03,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:36:03,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:36:03,804 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:36:03,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 792 transitions, 57301 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:03,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:03,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:36:03,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:04,590 INFO L124 PetriNetUnfolderBase]: 66/1497 cut-off events. [2023-12-09 15:36:04,591 INFO L125 PetriNetUnfolderBase]: For 225940/228360 co-relation queries the response was YES. [2023-12-09 15:36:04,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32666 conditions, 1497 events. 66/1497 cut-off events. For 225940/228360 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 16941 event pairs, 0 based on Foata normal form. 6/1487 useless extension candidates. Maximal degree in co-relation 16435. Up to 548 conditions per place. [2023-12-09 15:36:04,602 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 39 selfloop transitions, 4 changer transitions 713/799 dead transitions. [2023-12-09 15:36:04,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 590 places, 799 transitions, 59337 flow [2023-12-09 15:36:04,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 15:36:04,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 15:36:04,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 781 transitions. [2023-12-09 15:36:04,603 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7326454033771107 [2023-12-09 15:36:04,603 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 781 transitions. [2023-12-09 15:36:04,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 781 transitions. [2023-12-09 15:36:04,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:04,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 781 transitions. [2023-12-09 15:36:04,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 60.07692307692308) internal successors, (781), 13 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:04,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:04,605 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:04,606 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 515 predicate places. [2023-12-09 15:36:04,606 INFO L500 AbstractCegarLoop]: Abstraction has has 590 places, 799 transitions, 59337 flow [2023-12-09 15:36:04,606 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:04,606 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:04,606 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] [2023-12-09 15:36:04,606 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-09 15:36:04,606 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 15:36:04,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:04,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1908702318, now seen corresponding path program 9 times [2023-12-09 15:36:04,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:04,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941231967] [2023-12-09 15:36:04,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:04,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:04,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:04,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:04,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941231967] [2023-12-09 15:36:04,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941231967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:04,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:04,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:36:04,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740448447] [2023-12-09 15:36:04,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:04,750 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:36:04,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:04,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:36:04,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:36:04,751 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:36:04,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 799 transitions, 59337 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:04,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:04,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:36:04,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:05,563 INFO L124 PetriNetUnfolderBase]: 65/1504 cut-off events. [2023-12-09 15:36:05,563 INFO L125 PetriNetUnfolderBase]: For 235784/238282 co-relation queries the response was YES. [2023-12-09 15:36:05,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33720 conditions, 1504 events. 65/1504 cut-off events. For 235784/238282 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 17041 event pairs, 0 based on Foata normal form. 8/1498 useless extension candidates. Maximal degree in co-relation 9563. Up to 553 conditions per place. [2023-12-09 15:36:05,577 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 37 selfloop transitions, 4 changer transitions 721/805 dead transitions. [2023-12-09 15:36:05,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 609 places, 805 transitions, 61321 flow [2023-12-09 15:36:05,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:36:05,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:36:05,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1185 transitions. [2023-12-09 15:36:05,578 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7225609756097561 [2023-12-09 15:36:05,578 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1185 transitions. [2023-12-09 15:36:05,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1185 transitions. [2023-12-09 15:36:05,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:05,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1185 transitions. [2023-12-09 15:36:05,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 59.25) internal successors, (1185), 20 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:05,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 82.0) internal successors, (1722), 21 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:05,582 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 82.0) internal successors, (1722), 21 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:05,582 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 534 predicate places. [2023-12-09 15:36:05,582 INFO L500 AbstractCegarLoop]: Abstraction has has 609 places, 805 transitions, 61321 flow [2023-12-09 15:36:05,583 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:05,583 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:05,583 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:05,583 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-09 15:36:05,583 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 15:36:05,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:05,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1452195872, now seen corresponding path program 10 times [2023-12-09 15:36:05,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:05,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344696873] [2023-12-09 15:36:05,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:05,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:05,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:05,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:05,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344696873] [2023-12-09 15:36:05,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344696873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:05,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:05,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:36:05,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129606349] [2023-12-09 15:36:05,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:05,722 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:36:05,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:05,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:36:05,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:36:05,723 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2023-12-09 15:36:05,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 609 places, 805 transitions, 61321 flow. Second operand has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:05,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:05,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2023-12-09 15:36:05,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:06,624 INFO L124 PetriNetUnfolderBase]: 65/1504 cut-off events. [2023-12-09 15:36:06,625 INFO L125 PetriNetUnfolderBase]: For 252339/254963 co-relation queries the response was YES. [2023-12-09 15:36:06,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34417 conditions, 1504 events. 65/1504 cut-off events. For 252339/254963 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 17077 event pairs, 0 based on Foata normal form. 8/1497 useless extension candidates. Maximal degree in co-relation 17281. Up to 550 conditions per place. [2023-12-09 15:36:06,639 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 27 selfloop transitions, 0 changer transitions 734/802 dead transitions. [2023-12-09 15:36:06,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 626 places, 802 transitions, 62585 flow [2023-12-09 15:36:06,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:36:06,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:36:06,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1060 transitions. [2023-12-09 15:36:06,641 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7181571815718157 [2023-12-09 15:36:06,641 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1060 transitions. [2023-12-09 15:36:06,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1060 transitions. [2023-12-09 15:36:06,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:06,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1060 transitions. [2023-12-09 15:36:06,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 58.888888888888886) internal successors, (1060), 18 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:06,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 82.0) internal successors, (1558), 19 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:06,644 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 82.0) internal successors, (1558), 19 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:06,645 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 551 predicate places. [2023-12-09 15:36:06,645 INFO L500 AbstractCegarLoop]: Abstraction has has 626 places, 802 transitions, 62585 flow [2023-12-09 15:36:06,645 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.44444444444444) internal successors, (517), 9 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:06,645 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:06,645 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] [2023-12-09 15:36:06,646 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-09 15:36:06,646 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 15:36:06,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:06,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1064035835, now seen corresponding path program 18 times [2023-12-09 15:36:06,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:06,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428275698] [2023-12-09 15:36:06,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:06,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:06,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:06,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:06,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428275698] [2023-12-09 15:36:06,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428275698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:06,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:06,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:36:06,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136897676] [2023-12-09 15:36:06,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:06,825 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:36:06,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:06,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:36:06,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:36:06,826 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:36:06,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 626 places, 802 transitions, 62585 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:06,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:06,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:36:06,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:07,798 INFO L124 PetriNetUnfolderBase]: 64/1515 cut-off events. [2023-12-09 15:36:07,798 INFO L125 PetriNetUnfolderBase]: For 266467/269331 co-relation queries the response was YES. [2023-12-09 15:36:07,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35540 conditions, 1515 events. 64/1515 cut-off events. For 266467/269331 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 17235 event pairs, 0 based on Foata normal form. 24/1525 useless extension candidates. Maximal degree in co-relation 17778. Up to 568 conditions per place. [2023-12-09 15:36:07,811 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 22 selfloop transitions, 5 changer transitions 743/809 dead transitions. [2023-12-09 15:36:07,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 638 places, 809 transitions, 64697 flow [2023-12-09 15:36:07,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 15:36:07,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 15:36:07,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 753 transitions. [2023-12-09 15:36:07,813 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7063789868667918 [2023-12-09 15:36:07,813 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 753 transitions. [2023-12-09 15:36:07,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 753 transitions. [2023-12-09 15:36:07,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:07,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 753 transitions. [2023-12-09 15:36:07,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 57.92307692307692) internal successors, (753), 13 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:07,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:07,815 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:07,816 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 563 predicate places. [2023-12-09 15:36:07,816 INFO L500 AbstractCegarLoop]: Abstraction has has 638 places, 809 transitions, 64697 flow [2023-12-09 15:36:07,816 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:07,816 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:07,816 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:07,816 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-09 15:36:07,816 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 15:36:07,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:07,817 INFO L85 PathProgramCache]: Analyzing trace with hash -830245311, now seen corresponding path program 19 times [2023-12-09 15:36:07,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:07,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424911608] [2023-12-09 15:36:07,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:07,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:07,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:07,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:07,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424911608] [2023-12-09 15:36:07,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424911608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:07,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:07,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:36:07,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924826423] [2023-12-09 15:36:07,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:07,976 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:36:07,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:07,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:36:07,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:36:07,979 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:36:07,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 638 places, 809 transitions, 64697 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:07,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:07,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:36:07,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:08,890 INFO L124 PetriNetUnfolderBase]: 63/1526 cut-off events. [2023-12-09 15:36:08,890 INFO L125 PetriNetUnfolderBase]: For 281114/283942 co-relation queries the response was YES. [2023-12-09 15:36:08,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36635 conditions, 1526 events. 63/1526 cut-off events. For 281114/283942 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 17460 event pairs, 0 based on Foata normal form. 24/1536 useless extension candidates. Maximal degree in co-relation 18237. Up to 568 conditions per place. [2023-12-09 15:36:08,905 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 19 selfloop transitions, 5 changer transitions 752/815 dead transitions. [2023-12-09 15:36:08,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 655 places, 815 transitions, 66751 flow [2023-12-09 15:36:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:36:08,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:36:08,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1025 transitions. [2023-12-09 15:36:08,907 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2023-12-09 15:36:08,907 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1025 transitions. [2023-12-09 15:36:08,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1025 transitions. [2023-12-09 15:36:08,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:08,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1025 transitions. [2023-12-09 15:36:08,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 56.94444444444444) internal successors, (1025), 18 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:08,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 82.0) internal successors, (1558), 19 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:08,910 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 82.0) internal successors, (1558), 19 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:08,910 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 580 predicate places. [2023-12-09 15:36:08,911 INFO L500 AbstractCegarLoop]: Abstraction has has 655 places, 815 transitions, 66751 flow [2023-12-09 15:36:08,911 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:08,911 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:08,911 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] [2023-12-09 15:36:08,911 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-09 15:36:08,911 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 15:36:08,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:08,911 INFO L85 PathProgramCache]: Analyzing trace with hash 635454609, now seen corresponding path program 20 times [2023-12-09 15:36:08,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:08,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889025849] [2023-12-09 15:36:08,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:08,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:09,152 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 15:36:09,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:09,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889025849] [2023-12-09 15:36:09,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889025849] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:09,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:09,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:36:09,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424618307] [2023-12-09 15:36:09,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:09,153 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:36:09,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:09,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:36:09,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:36:09,155 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-12-09 15:36:09,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 655 places, 815 transitions, 66751 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:09,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:09,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-12-09 15:36:09,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:10,086 INFO L124 PetriNetUnfolderBase]: 63/1521 cut-off events. [2023-12-09 15:36:10,086 INFO L125 PetriNetUnfolderBase]: For 291528/294396 co-relation queries the response was YES. [2023-12-09 15:36:10,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37337 conditions, 1521 events. 63/1521 cut-off events. For 291528/294396 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 17458 event pairs, 0 based on Foata normal form. 22/1531 useless extension candidates. Maximal degree in co-relation 10543. Up to 568 conditions per place. [2023-12-09 15:36:10,099 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 0 selfloop transitions, 0 changer transitions 811/811 dead transitions. [2023-12-09 15:36:10,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 670 places, 811 transitions, 68029 flow [2023-12-09 15:36:10,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:36:10,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:36:10,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1140 transitions. [2023-12-09 15:36:10,100 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6951219512195121 [2023-12-09 15:36:10,100 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1140 transitions. [2023-12-09 15:36:10,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1140 transitions. [2023-12-09 15:36:10,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:10,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1140 transitions. [2023-12-09 15:36:10,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 57.0) internal successors, (1140), 20 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:10,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 82.0) internal successors, (1722), 21 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:10,104 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 82.0) internal successors, (1722), 21 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:10,104 INFO L308 CegarLoopForPetriNet]: 75 programPoint places, 595 predicate places. [2023-12-09 15:36:10,104 INFO L500 AbstractCegarLoop]: Abstraction has has 670 places, 811 transitions, 68029 flow [2023-12-09 15:36:10,104 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:10,110 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/security.wvr.c_BEv2_AllErrorsAtOnce [2023-12-09 15:36:10,196 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-09 15:36:10,197 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-12-09 15:36:10,197 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-12-09 15:36:10,197 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-09 15:36:10,197 INFO L457 BasicCegarLoop]: Path program histogram: [20, 10, 9, 4] [2023-12-09 15:36:10,201 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:36:10,201 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:36:10,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:36:10 BasicIcfg [2023-12-09 15:36:10,207 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:36:10,207 INFO L158 Benchmark]: Toolchain (without parser) took 34450.34ms. Allocated memory was 192.9MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 145.4MB in the beginning and 896.8MB in the end (delta: -751.5MB). Peak memory consumption was 465.1MB. Max. memory is 8.0GB. [2023-12-09 15:36:10,207 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory is still 149.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:36:10,207 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.01ms. Allocated memory is still 192.9MB. Free memory was 145.4MB in the beginning and 134.6MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-09 15:36:10,208 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.44ms. Allocated memory is still 192.9MB. Free memory was 134.2MB in the beginning and 132.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:36:10,208 INFO L158 Benchmark]: Boogie Preprocessor took 19.17ms. Allocated memory is still 192.9MB. Free memory was 132.7MB in the beginning and 131.7MB in the end (delta: 977.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:36:10,208 INFO L158 Benchmark]: RCFGBuilder took 305.09ms. Allocated memory is still 192.9MB. Free memory was 131.7MB in the beginning and 119.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-09 15:36:10,208 INFO L158 Benchmark]: TraceAbstraction took 33893.51ms. Allocated memory was 192.9MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 118.5MB in the beginning and 896.8MB in the end (delta: -778.3MB). Peak memory consumption was 437.9MB. Max. memory is 8.0GB. [2023-12-09 15:36:10,209 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory is still 149.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 201.01ms. Allocated memory is still 192.9MB. Free memory was 145.4MB in the beginning and 134.6MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.44ms. Allocated memory is still 192.9MB. Free memory was 134.2MB in the beginning and 132.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.17ms. Allocated memory is still 192.9MB. Free memory was 132.7MB in the beginning and 131.7MB in the end (delta: 977.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 305.09ms. Allocated memory is still 192.9MB. Free memory was 131.7MB in the beginning and 119.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 33893.51ms. Allocated memory was 192.9MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 118.5MB in the beginning and 896.8MB in the end (delta: -778.3MB). Peak memory consumption was 437.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 76]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 106 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: 33.8s, OverallIterations: 43, TraceHistogramMax: 1, PathProgramHistogramMax: 20, EmptinessCheckTime: 0.0s, AutomataDifference: 24.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3152 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3152 mSDsluCounter, 7322 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5937 mSDsCounter, 132 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6601 IncrementalHoareTripleChecker+Invalid, 6733 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 132 mSolverCounterUnsat, 1385 mSDtfsCounter, 6601 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 872 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 782 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1676 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68029occurred in iteration=43, InterpolantAutomatonStates: 642, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 2709 NumberOfCodeBlocks, 2709 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 2666 ConstructedInterpolants, 0 QuantifiedInterpolants, 13216 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 43 InterpolantComputations, 43 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-09 15:36:10,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...