/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/mix057_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:44:43,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:44:43,852 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 11:44:43,873 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:44:43,873 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:44:43,874 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:44:43,874 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:44:43,874 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:44:43,875 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:44:43,875 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:44:43,875 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:44:43,875 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:44:43,876 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:44:43,876 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:44:43,876 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:44:43,880 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:44:43,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:44:43,883 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:44:43,883 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:44:43,883 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:44:43,884 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:44:43,885 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:44:43,885 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:44:43,885 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:44:43,885 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:44:43,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:44:43,886 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:44:43,886 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:44:43,886 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:44:43,886 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:44:43,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:44:43,887 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:44:43,887 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:44:43,887 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:44:44,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:44:44,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:44:44,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:44:44,113 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:44:44,113 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:44:44,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i [2023-11-10 11:44:45,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:44:45,376 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:44:45,377 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i [2023-11-10 11:44:45,389 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/522ffdcc9/83b04546d4de41208ca4dc0b27616f56/FLAGd58feeceb [2023-11-10 11:44:45,405 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/522ffdcc9/83b04546d4de41208ca4dc0b27616f56 [2023-11-10 11:44:45,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:44:45,408 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:44:45,408 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:44:45,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:44:45,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:44:45,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:44:45" (1/1) ... [2023-11-10 11:44:45,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@242f7750 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:45, skipping insertion in model container [2023-11-10 11:44:45,413 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:44:45" (1/1) ... [2023-11-10 11:44:45,454 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:44:45,572 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/mix057_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-11-10 11:44:45,760 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:44:45,768 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:44:45,775 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/mix057_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-11-10 11:44:45,828 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:44:45,859 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:44:45,859 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:44:45,864 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:44:45,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:45 WrapperNode [2023-11-10 11:44:45,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:44:45,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:44:45,868 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:44:45,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:44:45,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:45" (1/1) ... [2023-11-10 11:44:45,887 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:45" (1/1) ... [2023-11-10 11:44:45,904 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 141 [2023-11-10 11:44:45,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:44:45,904 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:44:45,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:44:45,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:44:45,913 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:45" (1/1) ... [2023-11-10 11:44:45,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:45" (1/1) ... [2023-11-10 11:44:45,917 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:45" (1/1) ... [2023-11-10 11:44:45,917 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:45" (1/1) ... [2023-11-10 11:44:45,933 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:45" (1/1) ... [2023-11-10 11:44:45,935 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:45" (1/1) ... [2023-11-10 11:44:45,937 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:45" (1/1) ... [2023-11-10 11:44:45,938 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:45" (1/1) ... [2023-11-10 11:44:45,940 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:44:45,941 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:44:45,941 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:44:45,941 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:44:45,941 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:45" (1/1) ... [2023-11-10 11:44:45,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:44:45,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:44:45,968 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 11:44:45,974 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 11:44:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:44:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-10 11:44:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:44:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:44:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:44:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-10 11:44:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-10 11:44:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-10 11:44:45,999 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-10 11:44:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-10 11:44:45,999 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-10 11:44:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-10 11:44:45,999 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-10 11:44:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:44:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-10 11:44:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:44:45,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:44:46,000 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 11:44:46,127 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:44:46,128 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:44:46,420 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:44:46,539 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:44:46,539 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-10 11:44:46,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:44:46 BoogieIcfgContainer [2023-11-10 11:44:46,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:44:46,549 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:44:46,550 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:44:46,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:44:46,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:44:45" (1/3) ... [2023-11-10 11:44:46,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ca2874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:44:46, skipping insertion in model container [2023-11-10 11:44:46,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:45" (2/3) ... [2023-11-10 11:44:46,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ca2874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:44:46, skipping insertion in model container [2023-11-10 11:44:46,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:44:46" (3/3) ... [2023-11-10 11:44:46,555 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.oepc_pso.oepc_rmo.oepc.i [2023-11-10 11:44:46,569 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:44:46,569 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-10 11:44:46,569 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:44:46,619 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-10 11:44:46,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 131 transitions, 278 flow [2023-11-10 11:44:46,722 INFO L124 PetriNetUnfolderBase]: 3/127 cut-off events. [2023-11-10 11:44:46,723 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:44:46,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 127 events. 3/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 69 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2023-11-10 11:44:46,730 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 131 transitions, 278 flow [2023-11-10 11:44:46,738 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 127 transitions, 266 flow [2023-11-10 11:44:46,745 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:44:46,750 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;@5fff6e2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:44:46,750 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-10 11:44:46,763 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:44:46,764 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2023-11-10 11:44:46,764 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:44:46,764 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:44:46,765 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] [2023-11-10 11:44:46,765 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 11:44:46,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:44:46,769 INFO L85 PathProgramCache]: Analyzing trace with hash 567859074, now seen corresponding path program 1 times [2023-11-10 11:44:46,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:44:46,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149998675] [2023-11-10 11:44:46,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:44:46,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:44:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:44:47,230 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 11:44:47,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:44:47,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149998675] [2023-11-10 11:44:47,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149998675] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:44:47,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:44:47,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-10 11:44:47,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629811087] [2023-11-10 11:44:47,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:44:47,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-10 11:44:47,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:44:47,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-10 11:44:47,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-10 11:44:47,262 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 131 [2023-11-10 11:44:47,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 127 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 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 11:44:47,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:44:47,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 131 [2023-11-10 11:44:47,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:44:47,473 INFO L124 PetriNetUnfolderBase]: 162/540 cut-off events. [2023-11-10 11:44:47,473 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2023-11-10 11:44:47,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 846 conditions, 540 events. 162/540 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2838 event pairs, 34 based on Foata normal form. 54/563 useless extension candidates. Maximal degree in co-relation 795. Up to 191 conditions per place. [2023-11-10 11:44:47,483 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 18 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2023-11-10 11:44:47,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 130 transitions, 321 flow [2023-11-10 11:44:47,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-10 11:44:47,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-10 11:44:47,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2023-11-10 11:44:47,498 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9363867684478372 [2023-11-10 11:44:47,499 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 368 transitions. [2023-11-10 11:44:47,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 368 transitions. [2023-11-10 11:44:47,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:44:47,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 368 transitions. [2023-11-10 11:44:47,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 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 11:44:47,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 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 11:44:47,512 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 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 11:44:47,514 INFO L175 Difference]: Start difference. First operand has 137 places, 127 transitions, 266 flow. Second operand 3 states and 368 transitions. [2023-11-10 11:44:47,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 130 transitions, 321 flow [2023-11-10 11:44:47,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 130 transitions, 314 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-10 11:44:47,520 INFO L231 Difference]: Finished difference. Result has 133 places, 122 transitions, 256 flow [2023-11-10 11:44:47,522 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=133, PETRI_TRANSITIONS=122} [2023-11-10 11:44:47,524 INFO L281 CegarLoopForPetriNet]: 137 programPoint places, -4 predicate places. [2023-11-10 11:44:47,524 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 122 transitions, 256 flow [2023-11-10 11:44:47,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 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 11:44:47,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:44:47,525 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] [2023-11-10 11:44:47,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:44:47,526 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 11:44:47,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:44:47,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1338247089, now seen corresponding path program 1 times [2023-11-10 11:44:47,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:44:47,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663519302] [2023-11-10 11:44:47,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:44:47,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:44:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:44:47,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:44:47,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:44:47,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663519302] [2023-11-10 11:44:47,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663519302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:44:47,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:44:47,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:44:47,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236035675] [2023-11-10 11:44:47,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:44:47,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:44:47,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:44:47,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:44:47,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:44:47,906 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 131 [2023-11-10 11:44:47,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 122 transitions, 256 flow. Second operand has 7 states, 7 states have (on average 98.14285714285714) internal successors, (687), 7 states have internal predecessors, (687), 0 states have call successors, (0), 0 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 11:44:47,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:44:47,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 131 [2023-11-10 11:44:47,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:44:52,098 INFO L124 PetriNetUnfolderBase]: 19769/37952 cut-off events. [2023-11-10 11:44:52,098 INFO L125 PetriNetUnfolderBase]: For 1563/1563 co-relation queries the response was YES. [2023-11-10 11:44:52,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66613 conditions, 37952 events. 19769/37952 cut-off events. For 1563/1563 co-relation queries the response was YES. Maximal size of possible extension queue 1541. Compared 364253 event pairs, 2657 based on Foata normal form. 0/37063 useless extension candidates. Maximal degree in co-relation 66560. Up to 7538 conditions per place. [2023-11-10 11:44:52,264 INFO L140 encePairwiseOnDemand]: 117/131 looper letters, 49 selfloop transitions, 10 changer transitions 137/276 dead transitions. [2023-11-10 11:44:52,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 276 transitions, 964 flow [2023-11-10 11:44:52,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:44:52,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:44:52,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1435 transitions. [2023-11-10 11:44:52,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8426306517909571 [2023-11-10 11:44:52,269 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1435 transitions. [2023-11-10 11:44:52,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1435 transitions. [2023-11-10 11:44:52,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:44:52,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1435 transitions. [2023-11-10 11:44:52,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 110.38461538461539) internal successors, (1435), 13 states have internal predecessors, (1435), 0 states have call successors, (0), 0 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 11:44:52,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 131.0) internal successors, (1834), 14 states have internal predecessors, (1834), 0 states have call successors, (0), 0 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 11:44:52,277 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 131.0) internal successors, (1834), 14 states have internal predecessors, (1834), 0 states have call successors, (0), 0 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 11:44:52,277 INFO L175 Difference]: Start difference. First operand has 133 places, 122 transitions, 256 flow. Second operand 13 states and 1435 transitions. [2023-11-10 11:44:52,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 276 transitions, 964 flow [2023-11-10 11:44:52,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 276 transitions, 938 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-10 11:44:52,285 INFO L231 Difference]: Finished difference. Result has 155 places, 116 transitions, 346 flow [2023-11-10 11:44:52,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=346, PETRI_PLACES=155, PETRI_TRANSITIONS=116} [2023-11-10 11:44:52,286 INFO L281 CegarLoopForPetriNet]: 137 programPoint places, 18 predicate places. [2023-11-10 11:44:52,286 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 116 transitions, 346 flow [2023-11-10 11:44:52,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 98.14285714285714) internal successors, (687), 7 states have internal predecessors, (687), 0 states have call successors, (0), 0 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 11:44:52,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:44:52,286 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] [2023-11-10 11:44:52,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:44:52,287 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 11:44:52,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:44:52,287 INFO L85 PathProgramCache]: Analyzing trace with hash -171749616, now seen corresponding path program 1 times [2023-11-10 11:44:52,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:44:52,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709521881] [2023-11-10 11:44:52,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:44:52,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:44:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:44:52,549 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 11:44:52,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:44:52,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709521881] [2023-11-10 11:44:52,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709521881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:44:52,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:44:52,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:44:52,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007615608] [2023-11-10 11:44:52,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:44:52,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:44:52,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:44:52,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:44:52,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:44:52,558 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 131 [2023-11-10 11:44:52,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 116 transitions, 346 flow. Second operand has 7 states, 7 states have (on average 98.28571428571429) internal successors, (688), 7 states have internal predecessors, (688), 0 states have call successors, (0), 0 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 11:44:52,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:44:52,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 131 [2023-11-10 11:44:52,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:44:54,918 INFO L124 PetriNetUnfolderBase]: 10976/19169 cut-off events. [2023-11-10 11:44:54,918 INFO L125 PetriNetUnfolderBase]: For 31487/31487 co-relation queries the response was YES. [2023-11-10 11:44:54,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56698 conditions, 19169 events. 10976/19169 cut-off events. For 31487/31487 co-relation queries the response was YES. Maximal size of possible extension queue 1083. Compared 159327 event pairs, 804 based on Foata normal form. 376/19273 useless extension candidates. Maximal degree in co-relation 56633. Up to 4789 conditions per place. [2023-11-10 11:44:55,055 INFO L140 encePairwiseOnDemand]: 118/131 looper letters, 53 selfloop transitions, 18 changer transitions 124/275 dead transitions. [2023-11-10 11:44:55,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 275 transitions, 1600 flow [2023-11-10 11:44:55,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:44:55,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:44:55,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1416 transitions. [2023-11-10 11:44:55,059 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8314738696418086 [2023-11-10 11:44:55,059 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1416 transitions. [2023-11-10 11:44:55,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1416 transitions. [2023-11-10 11:44:55,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:44:55,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1416 transitions. [2023-11-10 11:44:55,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 108.92307692307692) internal successors, (1416), 13 states have internal predecessors, (1416), 0 states have call successors, (0), 0 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 11:44:55,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 131.0) internal successors, (1834), 14 states have internal predecessors, (1834), 0 states have call successors, (0), 0 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 11:44:55,065 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 131.0) internal successors, (1834), 14 states have internal predecessors, (1834), 0 states have call successors, (0), 0 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 11:44:55,065 INFO L175 Difference]: Start difference. First operand has 155 places, 116 transitions, 346 flow. Second operand 13 states and 1416 transitions. [2023-11-10 11:44:55,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 275 transitions, 1600 flow [2023-11-10 11:44:55,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 275 transitions, 1576 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-11-10 11:44:55,116 INFO L231 Difference]: Finished difference. Result has 152 places, 129 transitions, 572 flow [2023-11-10 11:44:55,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=572, PETRI_PLACES=152, PETRI_TRANSITIONS=129} [2023-11-10 11:44:55,118 INFO L281 CegarLoopForPetriNet]: 137 programPoint places, 15 predicate places. [2023-11-10 11:44:55,118 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 129 transitions, 572 flow [2023-11-10 11:44:55,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 98.28571428571429) internal successors, (688), 7 states have internal predecessors, (688), 0 states have call successors, (0), 0 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 11:44:55,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:44:55,120 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] [2023-11-10 11:44:55,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 11:44:55,120 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 11:44:55,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:44:55,121 INFO L85 PathProgramCache]: Analyzing trace with hash 373012177, now seen corresponding path program 1 times [2023-11-10 11:44:55,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:44:55,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828295654] [2023-11-10 11:44:55,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:44:55,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:44:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:44:55,352 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 11:44:55,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:44:55,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828295654] [2023-11-10 11:44:55,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828295654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:44:55,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:44:55,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:44:55,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085924222] [2023-11-10 11:44:55,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:44:55,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:44:55,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:44:55,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:44:55,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:44:55,361 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 131 [2023-11-10 11:44:55,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 129 transitions, 572 flow. Second operand has 7 states, 7 states have (on average 98.42857142857143) internal successors, (689), 7 states have internal predecessors, (689), 0 states have call successors, (0), 0 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 11:44:55,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:44:55,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 131 [2023-11-10 11:44:55,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:44:57,549 INFO L124 PetriNetUnfolderBase]: 9305/16549 cut-off events. [2023-11-10 11:44:57,549 INFO L125 PetriNetUnfolderBase]: For 57551/57741 co-relation queries the response was YES. [2023-11-10 11:44:57,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57540 conditions, 16549 events. 9305/16549 cut-off events. For 57551/57741 co-relation queries the response was YES. Maximal size of possible extension queue 917. Compared 136181 event pairs, 1112 based on Foata normal form. 367/16473 useless extension candidates. Maximal degree in co-relation 57462. Up to 4359 conditions per place. [2023-11-10 11:44:57,668 INFO L140 encePairwiseOnDemand]: 118/131 looper letters, 58 selfloop transitions, 28 changer transitions 109/275 dead transitions. [2023-11-10 11:44:57,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 275 transitions, 1974 flow [2023-11-10 11:44:57,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:44:57,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:44:57,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1408 transitions. [2023-11-10 11:44:57,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8267762771579565 [2023-11-10 11:44:57,671 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1408 transitions. [2023-11-10 11:44:57,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1408 transitions. [2023-11-10 11:44:57,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:44:57,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1408 transitions. [2023-11-10 11:44:57,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 108.3076923076923) internal successors, (1408), 13 states have internal predecessors, (1408), 0 states have call successors, (0), 0 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 11:44:57,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 131.0) internal successors, (1834), 14 states have internal predecessors, (1834), 0 states have call successors, (0), 0 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 11:44:57,676 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 131.0) internal successors, (1834), 14 states have internal predecessors, (1834), 0 states have call successors, (0), 0 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 11:44:57,676 INFO L175 Difference]: Start difference. First operand has 152 places, 129 transitions, 572 flow. Second operand 13 states and 1408 transitions. [2023-11-10 11:44:57,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 275 transitions, 1974 flow [2023-11-10 11:44:57,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 275 transitions, 1902 flow, removed 36 selfloop flow, removed 3 redundant places. [2023-11-10 11:44:57,758 INFO L231 Difference]: Finished difference. Result has 164 places, 144 transitions, 906 flow [2023-11-10 11:44:57,759 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=906, PETRI_PLACES=164, PETRI_TRANSITIONS=144} [2023-11-10 11:44:57,759 INFO L281 CegarLoopForPetriNet]: 137 programPoint places, 27 predicate places. [2023-11-10 11:44:57,759 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 144 transitions, 906 flow [2023-11-10 11:44:57,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 98.42857142857143) internal successors, (689), 7 states have internal predecessors, (689), 0 states have call successors, (0), 0 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 11:44:57,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:44:57,760 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 11:44:57,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-10 11:44:57,760 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 11:44:57,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:44:57,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1669994085, now seen corresponding path program 1 times [2023-11-10 11:44:57,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:44:57,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775600964] [2023-11-10 11:44:57,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:44:57,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:44:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:44:57,923 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 11:44:57,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:44:57,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775600964] [2023-11-10 11:44:57,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775600964] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:44:57,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:44:57,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:44:57,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914487452] [2023-11-10 11:44:57,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:44:57,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:44:57,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:44:57,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:44:57,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:44:57,925 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 131 [2023-11-10 11:44:57,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 144 transitions, 906 flow. Second operand has 6 states, 6 states have (on average 105.16666666666667) internal successors, (631), 6 states have internal predecessors, (631), 0 states have call successors, (0), 0 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 11:44:57,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:44:57,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 131 [2023-11-10 11:44:57,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:45:00,471 INFO L124 PetriNetUnfolderBase]: 8037/15548 cut-off events. [2023-11-10 11:45:00,472 INFO L125 PetriNetUnfolderBase]: For 78685/81012 co-relation queries the response was YES. [2023-11-10 11:45:00,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54666 conditions, 15548 events. 8037/15548 cut-off events. For 78685/81012 co-relation queries the response was YES. Maximal size of possible extension queue 996. Compared 141405 event pairs, 2468 based on Foata normal form. 1146/15938 useless extension candidates. Maximal degree in co-relation 54578. Up to 4373 conditions per place. [2023-11-10 11:45:00,781 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 38 selfloop transitions, 8 changer transitions 56/213 dead transitions. [2023-11-10 11:45:00,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 213 transitions, 1568 flow [2023-11-10 11:45:00,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-10 11:45:00,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-10 11:45:00,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1009 transitions. [2023-11-10 11:45:00,783 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8558100084817643 [2023-11-10 11:45:00,783 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1009 transitions. [2023-11-10 11:45:00,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1009 transitions. [2023-11-10 11:45:00,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:45:00,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1009 transitions. [2023-11-10 11:45:00,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 112.11111111111111) internal successors, (1009), 9 states have internal predecessors, (1009), 0 states have call successors, (0), 0 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 11:45:00,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 0 states have call successors, (0), 0 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 11:45:00,787 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 0 states have call successors, (0), 0 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 11:45:00,787 INFO L175 Difference]: Start difference. First operand has 164 places, 144 transitions, 906 flow. Second operand 9 states and 1009 transitions. [2023-11-10 11:45:00,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 213 transitions, 1568 flow [2023-11-10 11:45:00,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 213 transitions, 1466 flow, removed 51 selfloop flow, removed 6 redundant places. [2023-11-10 11:45:01,001 INFO L231 Difference]: Finished difference. Result has 164 places, 143 transitions, 864 flow [2023-11-10 11:45:01,002 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=864, PETRI_PLACES=164, PETRI_TRANSITIONS=143} [2023-11-10 11:45:01,002 INFO L281 CegarLoopForPetriNet]: 137 programPoint places, 27 predicate places. [2023-11-10 11:45:01,002 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 143 transitions, 864 flow [2023-11-10 11:45:01,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.16666666666667) internal successors, (631), 6 states have internal predecessors, (631), 0 states have call successors, (0), 0 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 11:45:01,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:45:01,003 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 11:45:01,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-10 11:45:01,003 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 11:45:01,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:45:01,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1456017630, now seen corresponding path program 1 times [2023-11-10 11:45:01,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:45:01,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969213844] [2023-11-10 11:45:01,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:45:01,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:45:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:45:01,143 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 11:45:01,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:45:01,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969213844] [2023-11-10 11:45:01,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969213844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:45:01,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:45:01,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:45:01,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195399911] [2023-11-10 11:45:01,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:45:01,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:45:01,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:45:01,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:45:01,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:45:01,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 131 [2023-11-10 11:45:01,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 143 transitions, 864 flow. Second operand has 7 states, 7 states have (on average 98.57142857142857) internal successors, (690), 7 states have internal predecessors, (690), 0 states have call successors, (0), 0 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 11:45:01,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:45:01,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 131 [2023-11-10 11:45:01,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:45:04,292 INFO L124 PetriNetUnfolderBase]: 13137/24327 cut-off events. [2023-11-10 11:45:04,292 INFO L125 PetriNetUnfolderBase]: For 120151/120151 co-relation queries the response was YES. [2023-11-10 11:45:04,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86267 conditions, 24327 events. 13137/24327 cut-off events. For 120151/120151 co-relation queries the response was YES. Maximal size of possible extension queue 1381. Compared 227026 event pairs, 1790 based on Foata normal form. 332/24347 useless extension candidates. Maximal degree in co-relation 86174. Up to 6432 conditions per place. [2023-11-10 11:45:04,694 INFO L140 encePairwiseOnDemand]: 119/131 looper letters, 62 selfloop transitions, 34 changer transitions 104/280 dead transitions. [2023-11-10 11:45:04,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 280 transitions, 2306 flow [2023-11-10 11:45:04,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:45:04,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:45:04,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1401 transitions. [2023-11-10 11:45:04,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.822665883734586 [2023-11-10 11:45:04,698 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1401 transitions. [2023-11-10 11:45:04,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1401 transitions. [2023-11-10 11:45:04,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:45:04,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1401 transitions. [2023-11-10 11:45:04,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 107.76923076923077) internal successors, (1401), 13 states have internal predecessors, (1401), 0 states have call successors, (0), 0 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 11:45:04,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 131.0) internal successors, (1834), 14 states have internal predecessors, (1834), 0 states have call successors, (0), 0 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 11:45:04,705 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 131.0) internal successors, (1834), 14 states have internal predecessors, (1834), 0 states have call successors, (0), 0 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 11:45:04,705 INFO L175 Difference]: Start difference. First operand has 164 places, 143 transitions, 864 flow. Second operand 13 states and 1401 transitions. [2023-11-10 11:45:04,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 280 transitions, 2306 flow [2023-11-10 11:45:04,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 280 transitions, 2178 flow, removed 53 selfloop flow, removed 14 redundant places. [2023-11-10 11:45:04,956 INFO L231 Difference]: Finished difference. Result has 168 places, 148 transitions, 1062 flow [2023-11-10 11:45:04,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1062, PETRI_PLACES=168, PETRI_TRANSITIONS=148} [2023-11-10 11:45:04,957 INFO L281 CegarLoopForPetriNet]: 137 programPoint places, 31 predicate places. [2023-11-10 11:45:04,957 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 148 transitions, 1062 flow [2023-11-10 11:45:04,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 98.57142857142857) internal successors, (690), 7 states have internal predecessors, (690), 0 states have call successors, (0), 0 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 11:45:04,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:45:04,958 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] [2023-11-10 11:45:04,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-10 11:45:04,958 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 11:45:04,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:45:04,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1536836680, now seen corresponding path program 1 times [2023-11-10 11:45:04,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:45:04,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977945296] [2023-11-10 11:45:04,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:45:04,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:45:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:45:05,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:45:05,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:45:05,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977945296] [2023-11-10 11:45:05,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977945296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:45:05,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:45:05,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:45:05,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731145547] [2023-11-10 11:45:05,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:45:05,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:45:05,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:45:05,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:45:05,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:45:05,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 131 [2023-11-10 11:45:05,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 148 transitions, 1062 flow. Second operand has 6 states, 6 states have (on average 103.33333333333333) internal successors, (620), 6 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:45:05,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:45:05,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 131 [2023-11-10 11:45:05,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:45:14,992 INFO L124 PetriNetUnfolderBase]: 49959/81676 cut-off events. [2023-11-10 11:45:14,992 INFO L125 PetriNetUnfolderBase]: For 202625/231972 co-relation queries the response was YES. [2023-11-10 11:45:15,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204310 conditions, 81676 events. 49959/81676 cut-off events. For 202625/231972 co-relation queries the response was YES. Maximal size of possible extension queue 4592. Compared 762133 event pairs, 2338 based on Foata normal form. 1739/80046 useless extension candidates. Maximal degree in co-relation 204220. Up to 33513 conditions per place. [2023-11-10 11:45:15,640 INFO L140 encePairwiseOnDemand]: 120/131 looper letters, 111 selfloop transitions, 20 changer transitions 0/251 dead transitions. [2023-11-10 11:45:15,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 251 transitions, 1956 flow [2023-11-10 11:45:15,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 11:45:15,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 11:45:15,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1119 transitions. [2023-11-10 11:45:15,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8541984732824427 [2023-11-10 11:45:15,643 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1119 transitions. [2023-11-10 11:45:15,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1119 transitions. [2023-11-10 11:45:15,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:45:15,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1119 transitions. [2023-11-10 11:45:15,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 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 11:45:15,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 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 11:45:15,647 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 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 11:45:15,647 INFO L175 Difference]: Start difference. First operand has 168 places, 148 transitions, 1062 flow. Second operand 10 states and 1119 transitions. [2023-11-10 11:45:15,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 251 transitions, 1956 flow [2023-11-10 11:45:15,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 251 transitions, 1942 flow, removed 7 selfloop flow, removed 5 redundant places. [2023-11-10 11:45:15,729 INFO L231 Difference]: Finished difference. Result has 169 places, 166 transitions, 1191 flow [2023-11-10 11:45:15,729 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=1048, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1191, PETRI_PLACES=169, PETRI_TRANSITIONS=166} [2023-11-10 11:45:15,729 INFO L281 CegarLoopForPetriNet]: 137 programPoint places, 32 predicate places. [2023-11-10 11:45:15,729 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 166 transitions, 1191 flow [2023-11-10 11:45:15,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 103.33333333333333) internal successors, (620), 6 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:45:15,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:45:15,730 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 11:45:15,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-10 11:45:15,730 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 11:45:15,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:45:15,730 INFO L85 PathProgramCache]: Analyzing trace with hash -440853356, now seen corresponding path program 1 times [2023-11-10 11:45:15,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:45:15,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056726932] [2023-11-10 11:45:15,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:45:15,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:45:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:45:15,858 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 11:45:15,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:45:15,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056726932] [2023-11-10 11:45:15,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056726932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:45:15,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:45:15,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:45:15,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405219253] [2023-11-10 11:45:15,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:45:15,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:45:15,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:45:15,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:45:15,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:45:15,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 131 [2023-11-10 11:45:15,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 166 transitions, 1191 flow. Second operand has 6 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 0 states have call successors, (0), 0 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 11:45:15,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:45:15,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 131 [2023-11-10 11:45:15,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:45:21,467 INFO L124 PetriNetUnfolderBase]: 14860/43265 cut-off events. [2023-11-10 11:45:21,467 INFO L125 PetriNetUnfolderBase]: For 113590/123445 co-relation queries the response was YES. [2023-11-10 11:45:21,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125230 conditions, 43265 events. 14860/43265 cut-off events. For 113590/123445 co-relation queries the response was YES. Maximal size of possible extension queue 3091. Compared 614545 event pairs, 6049 based on Foata normal form. 1541/41455 useless extension candidates. Maximal degree in co-relation 125136. Up to 9419 conditions per place. [2023-11-10 11:45:22,048 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 71 selfloop transitions, 27 changer transitions 12/236 dead transitions. [2023-11-10 11:45:22,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 236 transitions, 1995 flow [2023-11-10 11:45:22,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-10 11:45:22,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-10 11:45:22,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1003 transitions. [2023-11-10 11:45:22,051 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8507209499575912 [2023-11-10 11:45:22,051 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1003 transitions. [2023-11-10 11:45:22,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1003 transitions. [2023-11-10 11:45:22,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:45:22,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1003 transitions. [2023-11-10 11:45:22,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 111.44444444444444) internal successors, (1003), 9 states have internal predecessors, (1003), 0 states have call successors, (0), 0 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 11:45:22,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 0 states have call successors, (0), 0 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 11:45:22,055 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 0 states have call successors, (0), 0 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 11:45:22,055 INFO L175 Difference]: Start difference. First operand has 169 places, 166 transitions, 1191 flow. Second operand 9 states and 1003 transitions. [2023-11-10 11:45:22,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 236 transitions, 1995 flow [2023-11-10 11:45:22,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 236 transitions, 1993 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-10 11:45:22,582 INFO L231 Difference]: Finished difference. Result has 183 places, 177 transitions, 1409 flow [2023-11-10 11:45:22,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=1189, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1409, PETRI_PLACES=183, PETRI_TRANSITIONS=177} [2023-11-10 11:45:22,583 INFO L281 CegarLoopForPetriNet]: 137 programPoint places, 46 predicate places. [2023-11-10 11:45:22,583 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 177 transitions, 1409 flow [2023-11-10 11:45:22,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 0 states have call successors, (0), 0 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 11:45:22,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:45:22,584 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 11:45:22,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-10 11:45:22,584 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 11:45:22,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:45:22,584 INFO L85 PathProgramCache]: Analyzing trace with hash -222953189, now seen corresponding path program 1 times [2023-11-10 11:45:22,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:45:22,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423961580] [2023-11-10 11:45:22,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:45:22,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:45:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:45:22,701 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 11:45:22,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:45:22,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423961580] [2023-11-10 11:45:22,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423961580] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:45:22,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:45:22,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:45:22,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203923288] [2023-11-10 11:45:22,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:45:22,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:45:22,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:45:22,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:45:22,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:45:22,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 131 [2023-11-10 11:45:22,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 177 transitions, 1409 flow. Second operand has 7 states, 7 states have (on average 103.28571428571429) internal successors, (723), 7 states have internal predecessors, (723), 0 states have call successors, (0), 0 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 11:45:22,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:45:22,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 131 [2023-11-10 11:45:22,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:45:40,172 INFO L124 PetriNetUnfolderBase]: 68489/118014 cut-off events. [2023-11-10 11:45:40,172 INFO L125 PetriNetUnfolderBase]: For 375853/402643 co-relation queries the response was YES. [2023-11-10 11:45:41,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394132 conditions, 118014 events. 68489/118014 cut-off events. For 375853/402643 co-relation queries the response was YES. Maximal size of possible extension queue 7165. Compared 1247069 event pairs, 3007 based on Foata normal form. 3931/119332 useless extension candidates. Maximal degree in co-relation 394031. Up to 27883 conditions per place. [2023-11-10 11:45:41,263 INFO L140 encePairwiseOnDemand]: 120/131 looper letters, 132 selfloop transitions, 38 changer transitions 11/309 dead transitions. [2023-11-10 11:45:41,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 309 transitions, 2765 flow [2023-11-10 11:45:41,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:45:41,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:45:41,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1459 transitions. [2023-11-10 11:45:41,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8567234292425132 [2023-11-10 11:45:41,266 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1459 transitions. [2023-11-10 11:45:41,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1459 transitions. [2023-11-10 11:45:41,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:45:41,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1459 transitions. [2023-11-10 11:45:41,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 112.23076923076923) internal successors, (1459), 13 states have internal predecessors, (1459), 0 states have call successors, (0), 0 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 11:45:41,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 131.0) internal successors, (1834), 14 states have internal predecessors, (1834), 0 states have call successors, (0), 0 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 11:45:41,272 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 131.0) internal successors, (1834), 14 states have internal predecessors, (1834), 0 states have call successors, (0), 0 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 11:45:41,272 INFO L175 Difference]: Start difference. First operand has 183 places, 177 transitions, 1409 flow. Second operand 13 states and 1459 transitions. [2023-11-10 11:45:41,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 309 transitions, 2765 flow [2023-11-10 11:45:47,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 309 transitions, 2739 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-11-10 11:45:47,705 INFO L231 Difference]: Finished difference. Result has 200 places, 194 transitions, 1616 flow [2023-11-10 11:45:47,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=1383, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1616, PETRI_PLACES=200, PETRI_TRANSITIONS=194} [2023-11-10 11:45:47,706 INFO L281 CegarLoopForPetriNet]: 137 programPoint places, 63 predicate places. [2023-11-10 11:45:47,706 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 194 transitions, 1616 flow [2023-11-10 11:45:47,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 103.28571428571429) internal successors, (723), 7 states have internal predecessors, (723), 0 states have call successors, (0), 0 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 11:45:47,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:45:47,706 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] [2023-11-10 11:45:47,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-10 11:45:47,707 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 11:45:47,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:45:47,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1259806629, now seen corresponding path program 1 times [2023-11-10 11:45:47,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:45:47,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084012403] [2023-11-10 11:45:47,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:45:47,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:45:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:45:47,856 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 11:45:47,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:45:47,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084012403] [2023-11-10 11:45:47,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084012403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:45:47,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:45:47,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:45:47,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637172182] [2023-11-10 11:45:47,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:45:47,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:45:47,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:45:47,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:45:47,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:45:47,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 131 [2023-11-10 11:45:47,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 194 transitions, 1616 flow. Second operand has 8 states, 8 states have (on average 103.25) internal successors, (826), 8 states have internal predecessors, (826), 0 states have call successors, (0), 0 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 11:45:47,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:45:47,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 131 [2023-11-10 11:45:47,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand