/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:42:21,681 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:42:21,731 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 [2023-11-10 11:42:21,778 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:42:21,779 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:42:21,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:42:21,780 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:42:21,780 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:42:21,781 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:42:21,781 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:42:21,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:42:21,782 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:42:21,782 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:42:21,782 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:42:21,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:42:21,783 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:42:21,783 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:42:21,784 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:42:21,784 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:42:21,784 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:42:21,790 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:42:21,791 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:42:21,791 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:42:21,792 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:42:21,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:42:21,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:42:21,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:42:21,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:42:21,793 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:42:21,793 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:42:21,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:42:21,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:42:21,794 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:42:21,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:42:22,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:42:22,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:42:22,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:42:22,032 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:42:22,032 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:42:22,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i [2023-11-10 11:42:23,172 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:42:23,393 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:42:23,394 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i [2023-11-10 11:42:23,410 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b586fee6/629f823711b74fc6a17d64398d9b082d/FLAG67371aeb5 [2023-11-10 11:42:23,430 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b586fee6/629f823711b74fc6a17d64398d9b082d [2023-11-10 11:42:23,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:42:23,433 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:42:23,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:42:23,434 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:42:23,437 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:42:23,438 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:42:23" (1/1) ... [2023-11-10 11:42:23,438 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@477298c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:42:23, skipping insertion in model container [2023-11-10 11:42:23,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:42:23" (1/1) ... [2023-11-10 11:42:23,498 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:42:23,619 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-11-10 11:42:23,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:42:23,857 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:42:23,868 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-11-10 11:42:23,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:42:23,967 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:42:23,967 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:42:23,976 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:42:23,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:42:23 WrapperNode [2023-11-10 11:42:23,976 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:42:23,977 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:42:23,978 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:42:23,978 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:42:23,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:42:23" (1/1) ... [2023-11-10 11:42:24,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:42:23" (1/1) ... [2023-11-10 11:42:24,056 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2023-11-10 11:42:24,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:42:24,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:42:24,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:42:24,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:42:24,065 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:42:23" (1/1) ... [2023-11-10 11:42:24,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:42:23" (1/1) ... [2023-11-10 11:42:24,079 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:42:23" (1/1) ... [2023-11-10 11:42:24,079 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:42:23" (1/1) ... [2023-11-10 11:42:24,089 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:42:23" (1/1) ... [2023-11-10 11:42:24,091 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:42:23" (1/1) ... [2023-11-10 11:42:24,093 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:42:23" (1/1) ... [2023-11-10 11:42:24,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:42:23" (1/1) ... [2023-11-10 11:42:24,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:42:24,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:42:24,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:42:24,111 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:42:24,112 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:42:23" (1/1) ... [2023-11-10 11:42:24,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:42:24,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:42:24,149 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) [2023-11-10 11:42:24,161 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 [2023-11-10 11:42:24,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:42:24,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-10 11:42:24,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:42:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:42:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:42:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-10 11:42:24,184 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-10 11:42:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-10 11:42:24,185 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-10 11:42:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-10 11:42:24,185 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-10 11:42:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-10 11:42:24,185 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-10 11:42:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:42:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-10 11:42:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:42:24,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:42:24,188 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-10 11:42:24,323 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:42:24,325 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:42:24,619 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:42:24,738 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:42:24,738 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-10 11:42:24,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:42:24 BoogieIcfgContainer [2023-11-10 11:42:24,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:42:24,746 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:42:24,746 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:42:24,749 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:42:24,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:42:23" (1/3) ... [2023-11-10 11:42:24,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f36b909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:42:24, skipping insertion in model container [2023-11-10 11:42:24,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:42:23" (2/3) ... [2023-11-10 11:42:24,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f36b909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:42:24, skipping insertion in model container [2023-11-10 11:42:24,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:42:24" (3/3) ... [2023-11-10 11:42:24,751 INFO L112 eAbstractionObserver]: Analyzing ICFG mix040_power.oepc_pso.oepc_rmo.oepc.i [2023-11-10 11:42:24,767 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:42:24,768 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-10 11:42:24,768 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:42:24,845 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-10 11:42:24,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 136 transitions, 288 flow [2023-11-10 11:42:24,956 INFO L124 PetriNetUnfolderBase]: 3/132 cut-off events. [2023-11-10 11:42:24,957 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:42:24,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 3/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 75 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2023-11-10 11:42:24,963 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 136 transitions, 288 flow [2023-11-10 11:42:24,967 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 132 transitions, 276 flow [2023-11-10 11:42:24,975 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:42:24,985 INFO L357 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=false, 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;@2d24fe4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:42:24,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-10 11:42:25,000 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:42:25,000 INFO L124 PetriNetUnfolderBase]: 1/49 cut-off events. [2023-11-10 11:42:25,001 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:42:25,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:42:25,002 INFO L208 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] [2023-11-10 11:42:25,002 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:42:25,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:42:25,008 INFO L85 PathProgramCache]: Analyzing trace with hash -26335242, now seen corresponding path program 1 times [2023-11-10 11:42:25,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:42:25,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250716610] [2023-11-10 11:42:25,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:42:25,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:42:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:42:25,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:42:25,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:42:25,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250716610] [2023-11-10 11:42:25,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250716610] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:42:25,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:42:25,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-10 11:42:25,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299940318] [2023-11-10 11:42:25,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:42:25,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-10 11:42:25,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:42:25,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-10 11:42:25,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-10 11:42:25,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 136 [2023-11-10 11:42:25,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 132 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:25,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:42:25,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 136 [2023-11-10 11:42:25,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:42:25,880 INFO L124 PetriNetUnfolderBase]: 162/673 cut-off events. [2023-11-10 11:42:25,881 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2023-11-10 11:42:25,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 979 conditions, 673 events. 162/673 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3844 event pairs, 102 based on Foata normal form. 46/670 useless extension candidates. Maximal degree in co-relation 925. Up to 191 conditions per place. [2023-11-10 11:42:25,894 INFO L140 encePairwiseOnDemand]: 130/136 looper letters, 18 selfloop transitions, 2 changer transitions 0/135 dead transitions. [2023-11-10 11:42:25,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 135 transitions, 331 flow [2023-11-10 11:42:25,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-10 11:42:25,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-10 11:42:25,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2023-11-10 11:42:25,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9387254901960784 [2023-11-10 11:42:25,913 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2023-11-10 11:42:25,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2023-11-10 11:42:25,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:42:25,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2023-11-10 11:42:25,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:25,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:25,931 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:25,935 INFO L175 Difference]: Start difference. First operand has 142 places, 132 transitions, 276 flow. Second operand 3 states and 383 transitions. [2023-11-10 11:42:25,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 135 transitions, 331 flow [2023-11-10 11:42:25,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 135 transitions, 324 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-10 11:42:25,944 INFO L231 Difference]: Finished difference. Result has 138 places, 127 transitions, 266 flow [2023-11-10 11:42:25,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=138, PETRI_TRANSITIONS=127} [2023-11-10 11:42:25,951 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, -4 predicate places. [2023-11-10 11:42:25,951 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 127 transitions, 266 flow [2023-11-10 11:42:25,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:25,952 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:42:25,952 INFO L208 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] [2023-11-10 11:42:25,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:42:25,953 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:42:25,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:42:25,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1393245938, now seen corresponding path program 1 times [2023-11-10 11:42:25,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:42:25,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745833127] [2023-11-10 11:42:25,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:42:25,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:42:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:42:26,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:42:26,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:42:26,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745833127] [2023-11-10 11:42:26,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745833127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:42:26,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:42:26,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:42:26,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074190094] [2023-11-10 11:42:26,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:42:26,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:42:26,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:42:26,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:42:26,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:42:26,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 136 [2023-11-10 11:42:26,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 127 transitions, 266 flow. Second operand has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:26,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:42:26,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 136 [2023-11-10 11:42:26,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:42:27,766 INFO L124 PetriNetUnfolderBase]: 3348/6607 cut-off events. [2023-11-10 11:42:27,766 INFO L125 PetriNetUnfolderBase]: For 448/448 co-relation queries the response was YES. [2023-11-10 11:42:27,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11833 conditions, 6607 events. 3348/6607 cut-off events. For 448/448 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 51416 event pairs, 1219 based on Foata normal form. 0/6412 useless extension candidates. Maximal degree in co-relation 11780. Up to 2638 conditions per place. [2023-11-10 11:42:27,809 INFO L140 encePairwiseOnDemand]: 127/136 looper letters, 26 selfloop transitions, 3 changer transitions 70/191 dead transitions. [2023-11-10 11:42:27,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 191 transitions, 586 flow [2023-11-10 11:42:27,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-10 11:42:27,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-10 11:42:27,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1061 transitions. [2023-11-10 11:42:27,812 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8668300653594772 [2023-11-10 11:42:27,812 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1061 transitions. [2023-11-10 11:42:27,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1061 transitions. [2023-11-10 11:42:27,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:42:27,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1061 transitions. [2023-11-10 11:42:27,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 117.88888888888889) internal successors, (1061), 9 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:27,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:27,819 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:27,820 INFO L175 Difference]: Start difference. First operand has 138 places, 127 transitions, 266 flow. Second operand 9 states and 1061 transitions. [2023-11-10 11:42:27,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 191 transitions, 586 flow [2023-11-10 11:42:27,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 191 transitions, 568 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-10 11:42:27,824 INFO L231 Difference]: Finished difference. Result has 151 places, 114 transitions, 275 flow [2023-11-10 11:42:27,824 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=275, PETRI_PLACES=151, PETRI_TRANSITIONS=114} [2023-11-10 11:42:27,825 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, 9 predicate places. [2023-11-10 11:42:27,825 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 114 transitions, 275 flow [2023-11-10 11:42:27,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:27,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:42:27,826 INFO L208 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] [2023-11-10 11:42:27,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:42:27,826 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:42:27,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:42:27,827 INFO L85 PathProgramCache]: Analyzing trace with hash -576759027, now seen corresponding path program 1 times [2023-11-10 11:42:27,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:42:27,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578546952] [2023-11-10 11:42:27,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:42:27,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:42:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:42:28,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:42:28,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:42:28,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578546952] [2023-11-10 11:42:28,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578546952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:42:28,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:42:28,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:42:28,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255181910] [2023-11-10 11:42:28,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:42:28,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:42:28,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:42:28,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:42:28,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:42:28,110 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 136 [2023-11-10 11:42:28,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 114 transitions, 275 flow. Second operand has 7 states, 7 states have (on average 102.42857142857143) internal successors, (717), 7 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:28,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:42:28,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 136 [2023-11-10 11:42:28,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:42:30,900 INFO L124 PetriNetUnfolderBase]: 9858/16272 cut-off events. [2023-11-10 11:42:30,900 INFO L125 PetriNetUnfolderBase]: For 13352/13352 co-relation queries the response was YES. [2023-11-10 11:42:30,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38677 conditions, 16272 events. 9858/16272 cut-off events. For 13352/13352 co-relation queries the response was YES. Maximal size of possible extension queue 832. Compared 122473 event pairs, 1048 based on Foata normal form. 356/16474 useless extension candidates. Maximal degree in co-relation 38613. Up to 4908 conditions per place. [2023-11-10 11:42:31,000 INFO L140 encePairwiseOnDemand]: 124/136 looper letters, 50 selfloop transitions, 10 changer transitions 107/251 dead transitions. [2023-11-10 11:42:31,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 251 transitions, 1111 flow [2023-11-10 11:42:31,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:42:31,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:42:31,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1464 transitions. [2023-11-10 11:42:31,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8280542986425339 [2023-11-10 11:42:31,005 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1464 transitions. [2023-11-10 11:42:31,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1464 transitions. [2023-11-10 11:42:31,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:42:31,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1464 transitions. [2023-11-10 11:42:31,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 112.61538461538461) internal successors, (1464), 13 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:31,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:31,014 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:31,014 INFO L175 Difference]: Start difference. First operand has 151 places, 114 transitions, 275 flow. Second operand 13 states and 1464 transitions. [2023-11-10 11:42:31,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 251 transitions, 1111 flow [2023-11-10 11:42:31,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 251 transitions, 1080 flow, removed 12 selfloop flow, removed 4 redundant places. [2023-11-10 11:42:31,198 INFO L231 Difference]: Finished difference. Result has 150 places, 122 transitions, 416 flow [2023-11-10 11:42:31,198 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=416, PETRI_PLACES=150, PETRI_TRANSITIONS=122} [2023-11-10 11:42:31,199 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, 8 predicate places. [2023-11-10 11:42:31,199 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 122 transitions, 416 flow [2023-11-10 11:42:31,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 102.42857142857143) internal successors, (717), 7 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:31,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:42:31,200 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:42:31,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 11:42:31,201 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:42:31,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:42:31,201 INFO L85 PathProgramCache]: Analyzing trace with hash 998816463, now seen corresponding path program 1 times [2023-11-10 11:42:31,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:42:31,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754341303] [2023-11-10 11:42:31,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:42:31,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:42:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:42:31,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:42:31,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:42:31,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754341303] [2023-11-10 11:42:31,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754341303] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:42:31,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:42:31,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:42:31,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917604151] [2023-11-10 11:42:31,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:42:31,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:42:31,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:42:31,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:42:31,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:42:31,500 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 136 [2023-11-10 11:42:31,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 122 transitions, 416 flow. Second operand has 7 states, 7 states have (on average 102.57142857142857) internal successors, (718), 7 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) [2023-11-10 11:42:31,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:42:31,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 136 [2023-11-10 11:42:31,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:42:33,835 INFO L124 PetriNetUnfolderBase]: 8133/14616 cut-off events. [2023-11-10 11:42:33,835 INFO L125 PetriNetUnfolderBase]: For 46948/47044 co-relation queries the response was YES. [2023-11-10 11:42:33,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48640 conditions, 14616 events. 8133/14616 cut-off events. For 46948/47044 co-relation queries the response was YES. Maximal size of possible extension queue 742. Compared 117432 event pairs, 1621 based on Foata normal form. 249/14435 useless extension candidates. Maximal degree in co-relation 48566. Up to 4800 conditions per place. [2023-11-10 11:42:33,948 INFO L140 encePairwiseOnDemand]: 122/136 looper letters, 50 selfloop transitions, 22 changer transitions 91/247 dead transitions. [2023-11-10 11:42:33,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 247 transitions, 1504 flow [2023-11-10 11:42:33,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:42:33,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:42:33,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1454 transitions. [2023-11-10 11:42:33,952 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8223981900452488 [2023-11-10 11:42:33,953 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1454 transitions. [2023-11-10 11:42:33,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1454 transitions. [2023-11-10 11:42:33,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:42:33,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1454 transitions. [2023-11-10 11:42:33,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 111.84615384615384) internal successors, (1454), 13 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:33,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:33,962 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:33,962 INFO L175 Difference]: Start difference. First operand has 150 places, 122 transitions, 416 flow. Second operand 13 states and 1454 transitions. [2023-11-10 11:42:33,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 247 transitions, 1504 flow [2023-11-10 11:42:34,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 247 transitions, 1476 flow, removed 12 selfloop flow, removed 4 redundant places. [2023-11-10 11:42:34,055 INFO L231 Difference]: Finished difference. Result has 161 places, 133 transitions, 641 flow [2023-11-10 11:42:34,055 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=641, PETRI_PLACES=161, PETRI_TRANSITIONS=133} [2023-11-10 11:42:34,057 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, 19 predicate places. [2023-11-10 11:42:34,057 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 133 transitions, 641 flow [2023-11-10 11:42:34,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 102.57142857142857) internal successors, (718), 7 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) [2023-11-10 11:42:34,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:42:34,058 INFO L208 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] [2023-11-10 11:42:34,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-10 11:42:34,058 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:42:34,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:42:34,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1183610105, now seen corresponding path program 1 times [2023-11-10 11:42:34,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:42:34,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532079717] [2023-11-10 11:42:34,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:42:34,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:42:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:42:34,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:42:34,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:42:34,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532079717] [2023-11-10 11:42:34,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532079717] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:42:34,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:42:34,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:42:34,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969213844] [2023-11-10 11:42:34,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:42:34,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:42:34,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:42:34,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:42:34,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:42:34,449 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 136 [2023-11-10 11:42:34,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 133 transitions, 641 flow. Second operand has 7 states, 7 states have (on average 102.71428571428571) internal successors, (719), 7 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:34,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:42:34,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 136 [2023-11-10 11:42:34,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:42:37,567 INFO L124 PetriNetUnfolderBase]: 9343/17326 cut-off events. [2023-11-10 11:42:37,567 INFO L125 PetriNetUnfolderBase]: For 81054/81450 co-relation queries the response was YES. [2023-11-10 11:42:37,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62578 conditions, 17326 events. 9343/17326 cut-off events. For 81054/81450 co-relation queries the response was YES. Maximal size of possible extension queue 822. Compared 147234 event pairs, 1620 based on Foata normal form. 269/16947 useless extension candidates. Maximal degree in co-relation 62490. Up to 4348 conditions per place. [2023-11-10 11:42:37,693 INFO L140 encePairwiseOnDemand]: 122/136 looper letters, 56 selfloop transitions, 26 changer transitions 92/258 dead transitions. [2023-11-10 11:42:37,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 258 transitions, 1866 flow [2023-11-10 11:42:37,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:42:37,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:42:37,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1446 transitions. [2023-11-10 11:42:37,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8178733031674208 [2023-11-10 11:42:37,698 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1446 transitions. [2023-11-10 11:42:37,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1446 transitions. [2023-11-10 11:42:37,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:42:37,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1446 transitions. [2023-11-10 11:42:37,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 111.23076923076923) internal successors, (1446), 13 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:37,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:37,706 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:37,706 INFO L175 Difference]: Start difference. First operand has 161 places, 133 transitions, 641 flow. Second operand 13 states and 1446 transitions. [2023-11-10 11:42:37,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 258 transitions, 1866 flow [2023-11-10 11:42:38,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 258 transitions, 1746 flow, removed 60 selfloop flow, removed 9 redundant places. [2023-11-10 11:42:38,028 INFO L231 Difference]: Finished difference. Result has 167 places, 140 transitions, 823 flow [2023-11-10 11:42:38,028 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=823, PETRI_PLACES=167, PETRI_TRANSITIONS=140} [2023-11-10 11:42:38,029 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, 25 predicate places. [2023-11-10 11:42:38,029 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 140 transitions, 823 flow [2023-11-10 11:42:38,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 102.71428571428571) internal successors, (719), 7 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:38,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:42:38,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:42:38,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-10 11:42:38,031 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:42:38,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:42:38,031 INFO L85 PathProgramCache]: Analyzing trace with hash -657025806, now seen corresponding path program 1 times [2023-11-10 11:42:38,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:42:38,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145930155] [2023-11-10 11:42:38,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:42:38,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:42:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:42:38,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:42:38,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:42:38,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145930155] [2023-11-10 11:42:38,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145930155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:42:38,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:42:38,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:42:38,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814727722] [2023-11-10 11:42:38,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:42:38,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:42:38,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:42:38,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:42:38,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:42:38,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2023-11-10 11:42:38,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 140 transitions, 823 flow. Second operand has 6 states, 6 states have (on average 108.33333333333333) internal successors, (650), 6 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:38,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:42:38,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2023-11-10 11:42:38,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:42:45,935 INFO L124 PetriNetUnfolderBase]: 32300/53494 cut-off events. [2023-11-10 11:42:45,936 INFO L125 PetriNetUnfolderBase]: For 108192/115529 co-relation queries the response was YES. [2023-11-10 11:42:46,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136491 conditions, 53494 events. 32300/53494 cut-off events. For 108192/115529 co-relation queries the response was YES. Maximal size of possible extension queue 2984. Compared 482613 event pairs, 1954 based on Foata normal form. 573/51655 useless extension candidates. Maximal degree in co-relation 136398. Up to 20859 conditions per place. [2023-11-10 11:42:46,322 INFO L140 encePairwiseOnDemand]: 125/136 looper letters, 103 selfloop transitions, 20 changer transitions 0/236 dead transitions. [2023-11-10 11:42:46,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 236 transitions, 1519 flow [2023-11-10 11:42:46,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 11:42:46,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 11:42:46,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1169 transitions. [2023-11-10 11:42:46,330 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8595588235294118 [2023-11-10 11:42:46,330 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1169 transitions. [2023-11-10 11:42:46,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1169 transitions. [2023-11-10 11:42:46,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:42:46,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1169 transitions. [2023-11-10 11:42:46,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 116.9) internal successors, (1169), 10 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:46,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:46,339 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:46,339 INFO L175 Difference]: Start difference. First operand has 167 places, 140 transitions, 823 flow. Second operand 10 states and 1169 transitions. [2023-11-10 11:42:46,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 236 transitions, 1519 flow [2023-11-10 11:42:46,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 236 transitions, 1491 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-11-10 11:42:46,445 INFO L231 Difference]: Finished difference. Result has 170 places, 158 transitions, 938 flow [2023-11-10 11:42:46,445 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=938, PETRI_PLACES=170, PETRI_TRANSITIONS=158} [2023-11-10 11:42:46,448 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, 28 predicate places. [2023-11-10 11:42:46,448 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 158 transitions, 938 flow [2023-11-10 11:42:46,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.33333333333333) internal successors, (650), 6 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:46,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:42:46,449 INFO L208 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] [2023-11-10 11:42:46,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-10 11:42:46,449 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:42:46,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:42:46,450 INFO L85 PathProgramCache]: Analyzing trace with hash -152627796, now seen corresponding path program 1 times [2023-11-10 11:42:46,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:42:46,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300453056] [2023-11-10 11:42:46,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:42:46,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:42:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:42:46,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:42:46,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:42:46,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300453056] [2023-11-10 11:42:46,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300453056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:42:46,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:42:46,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:42:46,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056726932] [2023-11-10 11:42:46,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:42:46,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:42:46,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:42:46,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:42:46,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:42:46,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 136 [2023-11-10 11:42:46,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 158 transitions, 938 flow. Second operand has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:46,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:42:46,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 136 [2023-11-10 11:42:46,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:42:51,642 INFO L124 PetriNetUnfolderBase]: 12214/32024 cut-off events. [2023-11-10 11:42:51,643 INFO L125 PetriNetUnfolderBase]: For 118122/123961 co-relation queries the response was YES. [2023-11-10 11:42:51,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104636 conditions, 32024 events. 12214/32024 cut-off events. For 118122/123961 co-relation queries the response was YES. Maximal size of possible extension queue 1985. Compared 400814 event pairs, 3479 based on Foata normal form. 621/30600 useless extension candidates. Maximal degree in co-relation 104533. Up to 5976 conditions per place. [2023-11-10 11:42:51,944 INFO L140 encePairwiseOnDemand]: 122/136 looper letters, 128 selfloop transitions, 43 changer transitions 0/273 dead transitions. [2023-11-10 11:42:51,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 273 transitions, 2250 flow [2023-11-10 11:42:51,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:42:51,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:42:51,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1440 transitions. [2023-11-10 11:42:51,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8144796380090498 [2023-11-10 11:42:51,948 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1440 transitions. [2023-11-10 11:42:51,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1440 transitions. [2023-11-10 11:42:51,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:42:51,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1440 transitions. [2023-11-10 11:42:51,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 110.76923076923077) internal successors, (1440), 13 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:51,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:51,956 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:51,956 INFO L175 Difference]: Start difference. First operand has 170 places, 158 transitions, 938 flow. Second operand 13 states and 1440 transitions. [2023-11-10 11:42:51,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 273 transitions, 2250 flow [2023-11-10 11:42:52,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 273 transitions, 2199 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-10 11:42:52,198 INFO L231 Difference]: Finished difference. Result has 192 places, 184 transitions, 1531 flow [2023-11-10 11:42:52,198 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=912, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1531, PETRI_PLACES=192, PETRI_TRANSITIONS=184} [2023-11-10 11:42:52,198 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, 50 predicate places. [2023-11-10 11:42:52,199 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 184 transitions, 1531 flow [2023-11-10 11:42:52,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:42:52,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:42:52,199 INFO L208 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] [2023-11-10 11:42:52,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-10 11:42:52,199 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:42:52,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:42:52,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1503082397, now seen corresponding path program 1 times [2023-11-10 11:42:52,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:42:52,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405583932] [2023-11-10 11:42:52,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:42:52,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:42:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:42:52,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:42:52,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:42:52,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405583932] [2023-11-10 11:42:52,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405583932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:42:52,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:42:52,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:42:52,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309670365] [2023-11-10 11:42:52,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:42:52,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:42:52,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:42:52,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:42:52,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:42:52,379 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2023-11-10 11:42:52,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 184 transitions, 1531 flow. Second operand has 7 states, 7 states have (on average 108.28571428571429) internal successors, (758), 7 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) [2023-11-10 11:42:52,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:42:52,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2023-11-10 11:42:52,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:43:03,357 INFO L124 PetriNetUnfolderBase]: 41158/72255 cut-off events. [2023-11-10 11:43:03,358 INFO L125 PetriNetUnfolderBase]: For 230399/238079 co-relation queries the response was YES. [2023-11-10 11:43:04,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243874 conditions, 72255 events. 41158/72255 cut-off events. For 230399/238079 co-relation queries the response was YES. Maximal size of possible extension queue 4255. Compared 732541 event pairs, 2066 based on Foata normal form. 1540/72002 useless extension candidates. Maximal degree in co-relation 243760. Up to 15990 conditions per place. [2023-11-10 11:43:04,267 INFO L140 encePairwiseOnDemand]: 125/136 looper letters, 132 selfloop transitions, 38 changer transitions 19/321 dead transitions. [2023-11-10 11:43:04,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 321 transitions, 2993 flow [2023-11-10 11:43:04,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:43:04,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:43:04,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1524 transitions. [2023-11-10 11:43:04,271 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8619909502262444 [2023-11-10 11:43:04,271 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1524 transitions. [2023-11-10 11:43:04,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1524 transitions. [2023-11-10 11:43:04,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:43:04,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1524 transitions. [2023-11-10 11:43:04,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.23076923076923) internal successors, (1524), 13 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:43:04,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:43:04,279 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:43:04,279 INFO L175 Difference]: Start difference. First operand has 192 places, 184 transitions, 1531 flow. Second operand 13 states and 1524 transitions. [2023-11-10 11:43:04,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 321 transitions, 2993 flow [2023-11-10 11:43:06,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 321 transitions, 2863 flow, removed 65 selfloop flow, removed 0 redundant places. [2023-11-10 11:43:06,462 INFO L231 Difference]: Finished difference. Result has 210 places, 197 transitions, 1591 flow [2023-11-10 11:43:06,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1401, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1591, PETRI_PLACES=210, PETRI_TRANSITIONS=197} [2023-11-10 11:43:06,464 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, 68 predicate places. [2023-11-10 11:43:06,465 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 197 transitions, 1591 flow [2023-11-10 11:43:06,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.28571428571429) internal successors, (758), 7 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) [2023-11-10 11:43:06,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:43:06,465 INFO L208 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] [2023-11-10 11:43:06,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-10 11:43:06,466 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:43:06,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:43:06,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1054605393, now seen corresponding path program 1 times [2023-11-10 11:43:06,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:43:06,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477938786] [2023-11-10 11:43:06,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:43:06,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:43:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:43:06,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:43:06,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:43:06,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477938786] [2023-11-10 11:43:06,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477938786] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:43:06,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:43:06,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:43:06,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553036266] [2023-11-10 11:43:06,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:43:06,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:43:06,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:43:06,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:43:06,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:43:06,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 136 [2023-11-10 11:43:06,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 197 transitions, 1591 flow. Second operand has 7 states, 7 states have (on average 109.42857142857143) internal successors, (766), 7 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:43:06,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:43:06,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 136 [2023-11-10 11:43:06,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:43:11,571 INFO L124 PetriNetUnfolderBase]: 12009/40113 cut-off events. [2023-11-10 11:43:11,571 INFO L125 PetriNetUnfolderBase]: For 164049/197475 co-relation queries the response was YES. [2023-11-10 11:43:12,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146375 conditions, 40113 events. 12009/40113 cut-off events. For 164049/197475 co-relation queries the response was YES. Maximal size of possible extension queue 4492. Compared 611152 event pairs, 1440 based on Foata normal form. 762/38322 useless extension candidates. Maximal degree in co-relation 146251. Up to 10639 conditions per place. [2023-11-10 11:43:12,316 INFO L140 encePairwiseOnDemand]: 130/136 looper letters, 67 selfloop transitions, 16 changer transitions 12/258 dead transitions. [2023-11-10 11:43:12,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 258 transitions, 2254 flow [2023-11-10 11:43:12,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-10 11:43:12,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-10 11:43:12,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 810 transitions. [2023-11-10 11:43:12,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8508403361344538 [2023-11-10 11:43:12,319 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 810 transitions. [2023-11-10 11:43:12,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 810 transitions. [2023-11-10 11:43:12,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:43:12,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 810 transitions. [2023-11-10 11:43:12,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 115.71428571428571) internal successors, (810), 7 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:43:12,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 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) [2023-11-10 11:43:12,323 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 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) [2023-11-10 11:43:12,323 INFO L175 Difference]: Start difference. First operand has 210 places, 197 transitions, 1591 flow. Second operand 7 states and 810 transitions. [2023-11-10 11:43:12,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 258 transitions, 2254 flow [2023-11-10 11:43:24,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 258 transitions, 2149 flow, removed 43 selfloop flow, removed 7 redundant places. [2023-11-10 11:43:24,128 INFO L231 Difference]: Finished difference. Result has 214 places, 209 transitions, 1716 flow [2023-11-10 11:43:24,128 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1486, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1716, PETRI_PLACES=214, PETRI_TRANSITIONS=209} [2023-11-10 11:43:24,129 INFO L281 CegarLoopForPetriNet]: 142 programPoint places, 72 predicate places. [2023-11-10 11:43:24,129 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 209 transitions, 1716 flow [2023-11-10 11:43:24,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 109.42857142857143) internal successors, (766), 7 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:43:24,129 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:43:24,130 INFO L208 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] [2023-11-10 11:43:24,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-10 11:43:24,130 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:43:24,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:43:24,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1257557387, now seen corresponding path program 2 times [2023-11-10 11:43:24,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:43:24,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24715458] [2023-11-10 11:43:24,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:43:24,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:43:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:43:24,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:43:24,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:43:24,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24715458] [2023-11-10 11:43:24,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24715458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:43:24,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:43:24,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:43:24,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825759794] [2023-11-10 11:43:24,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:43:24,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:43:24,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:43:24,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:43:24,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:43:24,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2023-11-10 11:43:24,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 209 transitions, 1716 flow. Second operand has 8 states, 8 states have (on average 108.25) internal successors, (866), 8 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:43:24,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:43:24,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2023-11-10 11:43:24,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand