/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/bench-exp3x3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:06:27,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:06:27,124 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 15:06:27,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:06:27,140 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:06:27,140 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:06:27,141 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:06:27,141 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:06:27,141 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:06:27,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:06:27,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:06:27,145 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:06:27,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:06:27,146 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:06:27,146 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:06:27,146 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:06:27,147 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:06:27,147 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:06:27,147 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:06:27,147 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:06:27,147 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:06:27,148 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:06:27,148 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:06:27,148 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:06:27,148 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:06:27,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:06:27,149 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:06:27,149 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:06:27,149 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:06:27,149 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:06:27,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:06:27,150 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:06:27,150 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:06:27,150 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:06:27,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:06:27,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:06:27,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:06:27,372 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:06:27,372 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:06:27,373 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c [2023-12-09 15:06:28,552 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:06:28,713 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:06:28,713 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c [2023-12-09 15:06:28,720 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f0428774/9a1fdb6cb5de45e19dfb0157e1050449/FLAG9636bc27c [2023-12-09 15:06:28,734 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f0428774/9a1fdb6cb5de45e19dfb0157e1050449 [2023-12-09 15:06:28,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:06:28,737 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:06:28,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:06:28,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:06:28,743 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:06:28,744 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:06:28" (1/1) ... [2023-12-09 15:06:28,745 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14ced590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:06:28, skipping insertion in model container [2023-12-09 15:06:28,746 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:06:28" (1/1) ... [2023-12-09 15:06:28,768 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:06:28,923 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/bench-exp3x3.wvr.c[2703,2716] [2023-12-09 15:06:28,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:06:28,938 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:06:28,970 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/bench-exp3x3.wvr.c[2703,2716] [2023-12-09 15:06:28,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:06:28,984 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:06:28,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:06:28 WrapperNode [2023-12-09 15:06:28,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:06:28,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:06:28,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:06:28,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:06:28,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:06:28" (1/1) ... [2023-12-09 15:06:29,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:06:28" (1/1) ... [2023-12-09 15:06:29,033 INFO L138 Inliner]: procedures = 22, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 131 [2023-12-09 15:06:29,034 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:06:29,034 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:06:29,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:06:29,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:06:29,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:06:28" (1/1) ... [2023-12-09 15:06:29,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:06:28" (1/1) ... [2023-12-09 15:06:29,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:06:28" (1/1) ... [2023-12-09 15:06:29,045 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:06:28" (1/1) ... [2023-12-09 15:06:29,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:06:28" (1/1) ... [2023-12-09 15:06:29,051 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:06:28" (1/1) ... [2023-12-09 15:06:29,052 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:06:28" (1/1) ... [2023-12-09 15:06:29,053 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:06:28" (1/1) ... [2023-12-09 15:06:29,056 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:06:29,069 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:06:29,070 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:06:29,070 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:06:29,070 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:06:28" (1/1) ... [2023-12-09 15:06:29,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:06:29,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:06:29,115 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 15:06:29,121 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 15:06:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:06:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:06:29,158 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:06:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:06:29,158 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:06:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:06:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:06:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-12-09 15:06:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-12-09 15:06:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:06:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-12-09 15:06:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-12-09 15:06:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-12-09 15:06:29,160 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-12-09 15:06:29,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:06:29,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:06:29,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:06:29,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:06:29,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:06:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:06:29,165 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 15:06:29,329 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:06:29,331 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:06:29,731 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:06:29,740 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:06:29,740 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-09 15:06:29,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:06:29 BoogieIcfgContainer [2023-12-09 15:06:29,741 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:06:29,743 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:06:29,743 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:06:29,745 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:06:29,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:06:28" (1/3) ... [2023-12-09 15:06:29,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5584228f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:06:29, skipping insertion in model container [2023-12-09 15:06:29,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:06:28" (2/3) ... [2023-12-09 15:06:29,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5584228f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:06:29, skipping insertion in model container [2023-12-09 15:06:29,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:06:29" (3/3) ... [2023-12-09 15:06:29,747 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3.wvr.c [2023-12-09 15:06:29,759 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:06:29,759 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:06:29,759 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:06:29,825 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2023-12-09 15:06:29,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 178 transitions, 398 flow [2023-12-09 15:06:29,944 INFO L124 PetriNetUnfolderBase]: 14/172 cut-off events. [2023-12-09 15:06:29,944 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-12-09 15:06:29,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 172 events. 14/172 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 128. Up to 2 conditions per place. [2023-12-09 15:06:29,950 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 178 transitions, 398 flow [2023-12-09 15:06:29,955 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 155 transitions, 346 flow [2023-12-09 15:06:29,961 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:06:29,965 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;@14556f3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:06:29,965 INFO L363 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-09 15:06:30,003 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:06:30,003 INFO L124 PetriNetUnfolderBase]: 14/154 cut-off events. [2023-12-09 15:06:30,003 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-12-09 15:06:30,004 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:06:30,004 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:06:30,009 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-12-09 15:06:30,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:06:30,013 INFO L85 PathProgramCache]: Analyzing trace with hash -383328040, now seen corresponding path program 1 times [2023-12-09 15:06:30,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:06:30,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790162287] [2023-12-09 15:06:30,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:06:30,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:06:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:06:31,387 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 15:06:31,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:06:31,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790162287] [2023-12-09 15:06:31,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790162287] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:06:31,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:06:31,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 15:06:31,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154058765] [2023-12-09 15:06:31,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:06:31,399 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:06:31,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:06:31,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:06:31,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:06:31,429 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 178 [2023-12-09 15:06:31,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 155 transitions, 346 flow. Second operand has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:06:31,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:06:31,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 178 [2023-12-09 15:06:31,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:06:36,520 INFO L124 PetriNetUnfolderBase]: 49441/61056 cut-off events. [2023-12-09 15:06:36,521 INFO L125 PetriNetUnfolderBase]: For 6910/6910 co-relation queries the response was YES. [2023-12-09 15:06:36,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123985 conditions, 61056 events. 49441/61056 cut-off events. For 6910/6910 co-relation queries the response was YES. Maximal size of possible extension queue 2244. Compared 298070 event pairs, 5520 based on Foata normal form. 3/39636 useless extension candidates. Maximal degree in co-relation 122332. Up to 51903 conditions per place. [2023-12-09 15:06:37,054 INFO L140 encePairwiseOnDemand]: 156/178 looper letters, 73 selfloop transitions, 9 changer transitions 7/180 dead transitions. [2023-12-09 15:06:37,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 180 transitions, 607 flow [2023-12-09 15:06:37,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:06:37,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:06:37,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1122 transitions. [2023-12-09 15:06:37,071 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.700374531835206 [2023-12-09 15:06:37,072 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1122 transitions. [2023-12-09 15:06:37,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1122 transitions. [2023-12-09 15:06:37,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:06:37,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1122 transitions. [2023-12-09 15:06:37,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 124.66666666666667) internal successors, (1122), 9 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:06:37,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 178.0) internal successors, (1780), 10 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:06:37,090 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 178.0) internal successors, (1780), 10 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:06:37,094 INFO L308 CegarLoopForPetriNet]: 160 programPoint places, 8 predicate places. [2023-12-09 15:06:37,095 INFO L500 AbstractCegarLoop]: Abstraction has has 168 places, 180 transitions, 607 flow [2023-12-09 15:06:37,095 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:06:37,096 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:06:37,096 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:06:37,096 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:06:37,097 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-12-09 15:06:37,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:06:37,098 INFO L85 PathProgramCache]: Analyzing trace with hash -699848863, now seen corresponding path program 1 times [2023-12-09 15:06:37,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:06:37,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706727099] [2023-12-09 15:06:37,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:06:37,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:06:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:06:37,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:06:37,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:06:37,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706727099] [2023-12-09 15:06:37,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706727099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:06:37,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:06:37,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:06:37,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239026110] [2023-12-09 15:06:37,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:06:37,440 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:06:37,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:06:37,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:06:37,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:06:37,442 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 178 [2023-12-09 15:06:37,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 180 transitions, 607 flow. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 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 15:06:37,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:06:37,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 178 [2023-12-09 15:06:37,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:06:45,302 INFO L124 PetriNetUnfolderBase]: 75093/98419 cut-off events. [2023-12-09 15:06:45,302 INFO L125 PetriNetUnfolderBase]: For 34149/69351 co-relation queries the response was YES. [2023-12-09 15:06:45,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271008 conditions, 98419 events. 75093/98419 cut-off events. For 34149/69351 co-relation queries the response was YES. Maximal size of possible extension queue 3927. Compared 598113 event pairs, 27898 based on Foata normal form. 8/65814 useless extension candidates. Maximal degree in co-relation 203203. Up to 82881 conditions per place. [2023-12-09 15:06:46,450 INFO L140 encePairwiseOnDemand]: 166/178 looper letters, 143 selfloop transitions, 16 changer transitions 9/273 dead transitions. [2023-12-09 15:06:46,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 273 transitions, 1408 flow [2023-12-09 15:06:46,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:06:46,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:06:46,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1110 transitions. [2023-12-09 15:06:46,469 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7794943820224719 [2023-12-09 15:06:46,469 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1110 transitions. [2023-12-09 15:06:46,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1110 transitions. [2023-12-09 15:06:46,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:06:46,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1110 transitions. [2023-12-09 15:06:46,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 138.75) internal successors, (1110), 8 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:06:46,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:06:46,475 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:06:46,476 INFO L308 CegarLoopForPetriNet]: 160 programPoint places, 15 predicate places. [2023-12-09 15:06:46,476 INFO L500 AbstractCegarLoop]: Abstraction has has 175 places, 273 transitions, 1408 flow [2023-12-09 15:06:46,476 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 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 15:06:46,477 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:06:46,477 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:06:46,477 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:06:46,477 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-12-09 15:06:46,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:06:46,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1592758801, now seen corresponding path program 2 times [2023-12-09 15:06:46,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:06:46,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176829507] [2023-12-09 15:06:46,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:06:46,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:06:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:06:46,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:06:46,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:06:46,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176829507] [2023-12-09 15:06:46,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176829507] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:06:46,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:06:46,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:06:46,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726058040] [2023-12-09 15:06:46,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:06:46,800 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:06:46,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:06:46,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:06:46,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:06:46,809 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 178 [2023-12-09 15:06:46,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 273 transitions, 1408 flow. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 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 15:06:46,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:06:46,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 178 [2023-12-09 15:06:46,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:06:54,413 INFO L124 PetriNetUnfolderBase]: 68721/90001 cut-off events. [2023-12-09 15:06:54,414 INFO L125 PetriNetUnfolderBase]: For 73594/141066 co-relation queries the response was YES. [2023-12-09 15:06:54,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316716 conditions, 90001 events. 68721/90001 cut-off events. For 73594/141066 co-relation queries the response was YES. Maximal size of possible extension queue 3518. Compared 534764 event pairs, 19137 based on Foata normal form. 86/60863 useless extension candidates. Maximal degree in co-relation 235632. Up to 75581 conditions per place. [2023-12-09 15:06:55,417 INFO L140 encePairwiseOnDemand]: 165/178 looper letters, 222 selfloop transitions, 23 changer transitions 8/358 dead transitions. [2023-12-09 15:06:55,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 358 transitions, 2493 flow [2023-12-09 15:06:55,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:06:55,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:06:55,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1096 transitions. [2023-12-09 15:06:55,419 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7696629213483146 [2023-12-09 15:06:55,419 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1096 transitions. [2023-12-09 15:06:55,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1096 transitions. [2023-12-09 15:06:55,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:06:55,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1096 transitions. [2023-12-09 15:06:55,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:06:55,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:06:55,424 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:06:55,425 INFO L308 CegarLoopForPetriNet]: 160 programPoint places, 22 predicate places. [2023-12-09 15:06:55,425 INFO L500 AbstractCegarLoop]: Abstraction has has 182 places, 358 transitions, 2493 flow [2023-12-09 15:06:55,425 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 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 15:06:55,425 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:06:55,425 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:06:55,425 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:06:55,425 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-12-09 15:06:55,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:06:55,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1210179617, now seen corresponding path program 1 times [2023-12-09 15:06:55,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:06:55,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155939216] [2023-12-09 15:06:55,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:06:55,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:06:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:06:55,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:06:55,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:06:55,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155939216] [2023-12-09 15:06:55,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155939216] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:06:55,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:06:55,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:06:55,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334138629] [2023-12-09 15:06:55,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:06:55,654 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:06:55,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:06:55,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:06:55,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:06:55,656 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 178 [2023-12-09 15:06:55,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 358 transitions, 2493 flow. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 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 15:06:55,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:06:55,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 178 [2023-12-09 15:06:55,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:07:04,273 INFO L124 PetriNetUnfolderBase]: 71357/94034 cut-off events. [2023-12-09 15:07:04,273 INFO L125 PetriNetUnfolderBase]: For 143208/235606 co-relation queries the response was YES. [2023-12-09 15:07:04,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401727 conditions, 94034 events. 71357/94034 cut-off events. For 143208/235606 co-relation queries the response was YES. Maximal size of possible extension queue 3809. Compared 580612 event pairs, 18706 based on Foata normal form. 98/64209 useless extension candidates. Maximal degree in co-relation 298050. Up to 79154 conditions per place. [2023-12-09 15:07:05,534 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 274 selfloop transitions, 23 changer transitions 8/410 dead transitions. [2023-12-09 15:07:05,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 410 transitions, 3570 flow [2023-12-09 15:07:05,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:07:05,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:07:05,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1096 transitions. [2023-12-09 15:07:05,558 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7696629213483146 [2023-12-09 15:07:05,558 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1096 transitions. [2023-12-09 15:07:05,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1096 transitions. [2023-12-09 15:07:05,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:07:05,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1096 transitions. [2023-12-09 15:07:05,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:07:05,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:07:05,563 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:07:05,563 INFO L308 CegarLoopForPetriNet]: 160 programPoint places, 29 predicate places. [2023-12-09 15:07:05,564 INFO L500 AbstractCegarLoop]: Abstraction has has 189 places, 410 transitions, 3570 flow [2023-12-09 15:07:05,564 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 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 15:07:05,564 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:07:05,564 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:07:05,564 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:07:05,564 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-12-09 15:07:05,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:07:05,565 INFO L85 PathProgramCache]: Analyzing trace with hash -154336221, now seen corresponding path program 1 times [2023-12-09 15:07:05,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:07:05,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250618620] [2023-12-09 15:07:05,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:07:05,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:07:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:07:05,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:07:05,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:07:05,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250618620] [2023-12-09 15:07:05,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250618620] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:07:05,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:07:05,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:07:05,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718049915] [2023-12-09 15:07:05,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:07:05,807 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:07:05,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:07:05,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:07:05,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:07:05,809 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 178 [2023-12-09 15:07:05,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 410 transitions, 3570 flow. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 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 15:07:05,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:07:05,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 178 [2023-12-09 15:07:05,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:07:21,641 INFO L124 PetriNetUnfolderBase]: 105716/138876 cut-off events. [2023-12-09 15:07:21,641 INFO L125 PetriNetUnfolderBase]: For 339884/498428 co-relation queries the response was YES. [2023-12-09 15:07:22,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 700574 conditions, 138876 events. 105716/138876 cut-off events. For 339884/498428 co-relation queries the response was YES. Maximal size of possible extension queue 5853. Compared 896989 event pairs, 15547 based on Foata normal form. 206/97986 useless extension candidates. Maximal degree in co-relation 516779. Up to 121586 conditions per place. [2023-12-09 15:07:23,561 INFO L140 encePairwiseOnDemand]: 166/178 looper letters, 796 selfloop transitions, 70 changer transitions 12/993 dead transitions. [2023-12-09 15:07:23,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 993 transitions, 11636 flow [2023-12-09 15:07:23,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:07:23,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:07:23,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1107 transitions. [2023-12-09 15:07:23,564 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7773876404494382 [2023-12-09 15:07:23,564 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1107 transitions. [2023-12-09 15:07:23,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1107 transitions. [2023-12-09 15:07:23,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:07:23,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1107 transitions. [2023-12-09 15:07:23,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 138.375) internal successors, (1107), 8 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:07:23,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:07:23,568 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 178.0) internal successors, (1602), 9 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:07:23,568 INFO L308 CegarLoopForPetriNet]: 160 programPoint places, 36 predicate places. [2023-12-09 15:07:23,569 INFO L500 AbstractCegarLoop]: Abstraction has has 196 places, 993 transitions, 11636 flow [2023-12-09 15:07:23,569 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 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 15:07:23,569 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:07:23,569 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:07:23,569 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:07:23,569 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-12-09 15:07:23,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:07:23,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1995716961, now seen corresponding path program 2 times [2023-12-09 15:07:23,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:07:23,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365076007] [2023-12-09 15:07:23,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:07:23,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:07:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:07:23,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:07:23,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:07:23,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365076007] [2023-12-09 15:07:23,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365076007] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:07:23,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:07:23,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:07:23,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722036780] [2023-12-09 15:07:23,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:07:23,937 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:07:23,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:07:23,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:07:23,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:07:23,938 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 178 [2023-12-09 15:07:23,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 993 transitions, 11636 flow. Second operand has 6 states, 6 states have (on average 118.66666666666667) internal successors, (712), 6 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:07:23,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:07:23,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 178 [2023-12-09 15:07:23,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:07:43,206 INFO L124 PetriNetUnfolderBase]: 104007/140366 cut-off events. [2023-12-09 15:07:43,206 INFO L125 PetriNetUnfolderBase]: For 372357/666694 co-relation queries the response was YES. [2023-12-09 15:07:43,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 817285 conditions, 140366 events. 104007/140366 cut-off events. For 372357/666694 co-relation queries the response was YES. Maximal size of possible extension queue 5827. Compared 957308 event pairs, 15574 based on Foata normal form. 596/99466 useless extension candidates. Maximal degree in co-relation 696122. Up to 120226 conditions per place. [2023-12-09 15:07:45,541 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 953 selfloop transitions, 28 changer transitions 12/1082 dead transitions. [2023-12-09 15:07:45,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 1082 transitions, 14737 flow [2023-12-09 15:07:45,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 15:07:45,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 15:07:45,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 890 transitions. [2023-12-09 15:07:45,565 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2023-12-09 15:07:45,565 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 890 transitions. [2023-12-09 15:07:45,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 890 transitions. [2023-12-09 15:07:45,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:07:45,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 890 transitions. [2023-12-09 15:07:45,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 127.14285714285714) internal successors, (890), 7 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:07:45,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 178.0) internal successors, (1424), 8 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:07:45,569 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 178.0) internal successors, (1424), 8 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:07:45,570 INFO L308 CegarLoopForPetriNet]: 160 programPoint places, 42 predicate places. [2023-12-09 15:07:45,570 INFO L500 AbstractCegarLoop]: Abstraction has has 202 places, 1082 transitions, 14737 flow [2023-12-09 15:07:45,570 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.66666666666667) internal successors, (712), 6 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:07:45,570 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:07:45,570 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:07:45,571 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:07:45,571 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-12-09 15:07:45,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:07:45,571 INFO L85 PathProgramCache]: Analyzing trace with hash -5444011, now seen corresponding path program 1 times [2023-12-09 15:07:45,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:07:45,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243829147] [2023-12-09 15:07:45,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:07:45,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:07:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:07:45,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:07:45,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:07:45,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243829147] [2023-12-09 15:07:45,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243829147] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:07:45,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101929303] [2023-12-09 15:07:45,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:07:45,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:07:45,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:07:45,940 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:07:45,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-09 15:07:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:07:46,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-09 15:07:46,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:07:46,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:07:46,720 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:07:47,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:07:47,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101929303] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:07:47,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:07:47,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2023-12-09 15:07:47,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062807948] [2023-12-09 15:07:47,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:07:47,012 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:07:47,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:07:47,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:07:47,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:07:47,014 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 178 [2023-12-09 15:07:47,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 1082 transitions, 14737 flow. Second operand has 10 states, 10 states have (on average 129.1) internal successors, (1291), 10 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:07:47,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:07:47,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 178 [2023-12-09 15:07:47,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:08:16,993 INFO L124 PetriNetUnfolderBase]: 127395/171935 cut-off events. [2023-12-09 15:08:16,994 INFO L125 PetriNetUnfolderBase]: For 612254/1314395 co-relation queries the response was YES. [2023-12-09 15:08:17,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126080 conditions, 171935 events. 127395/171935 cut-off events. For 612254/1314395 co-relation queries the response was YES. Maximal size of possible extension queue 7050. Compared 1203479 event pairs, 13489 based on Foata normal form. 2163/127065 useless extension candidates. Maximal degree in co-relation 1061125. Up to 149759 conditions per place. [2023-12-09 15:08:19,751 INFO L140 encePairwiseOnDemand]: 160/178 looper letters, 1702 selfloop transitions, 111 changer transitions 14/1947 dead transitions. [2023-12-09 15:08:19,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 1947 transitions, 31242 flow [2023-12-09 15:08:19,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:08:19,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:08:19,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2013 transitions. [2023-12-09 15:08:19,762 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7539325842696629 [2023-12-09 15:08:19,762 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2013 transitions. [2023-12-09 15:08:19,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2013 transitions. [2023-12-09 15:08:19,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:08:19,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2013 transitions. [2023-12-09 15:08:19,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 134.2) internal successors, (2013), 15 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:08:19,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 178.0) internal successors, (2848), 16 states have internal predecessors, (2848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:08:19,769 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 178.0) internal successors, (2848), 16 states have internal predecessors, (2848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:08:19,769 INFO L308 CegarLoopForPetriNet]: 160 programPoint places, 56 predicate places. [2023-12-09 15:08:19,769 INFO L500 AbstractCegarLoop]: Abstraction has has 216 places, 1947 transitions, 31242 flow [2023-12-09 15:08:19,770 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.1) internal successors, (1291), 10 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:08:19,770 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:08:19,770 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:08:19,777 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-09 15:08:19,974 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:08:19,975 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-12-09 15:08:19,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:08:19,975 INFO L85 PathProgramCache]: Analyzing trace with hash -304605731, now seen corresponding path program 1 times [2023-12-09 15:08:19,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:08:19,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970478900] [2023-12-09 15:08:19,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:08:19,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:08:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:08:20,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:08:20,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:08:20,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970478900] [2023-12-09 15:08:20,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970478900] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:08:20,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:08:20,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:08:20,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938759370] [2023-12-09 15:08:20,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:08:20,150 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:08:20,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:08:20,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:08:20,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:08:20,151 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 178 [2023-12-09 15:08:20,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 1947 transitions, 31242 flow. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 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 15:08:20,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:08:20,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 178 [2023-12-09 15:08:20,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand