/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/mix005_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:37:29,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:37:29,549 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 11:37:29,579 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:37:29,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:37:29,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:37:29,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:37:29,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:37:29,582 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:37:29,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:37:29,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:37:29,586 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:37:29,586 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:37:29,587 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:37:29,587 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:37:29,588 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:37:29,588 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:37:29,588 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:37:29,588 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:37:29,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:37:29,588 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:37:29,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:37:29,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:37:29,589 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:37:29,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:37:29,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:37:29,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:37:29,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:37:29,590 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:37:29,590 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:37:29,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:37:29,591 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:37:29,591 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:37:29,591 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:37:29,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:37:29,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:37:29,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:37:29,809 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:37:29,810 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:37:29,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix005_power.oepc_pso.oepc_rmo.oepc.i [2023-11-10 11:37:30,719 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:37:30,949 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:37:30,949 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix005_power.oepc_pso.oepc_rmo.oepc.i [2023-11-10 11:37:30,960 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fdf76f48/1d79dc9cddc54c2a833d145f1c0cb14e/FLAG307f648a6 [2023-11-10 11:37:30,971 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fdf76f48/1d79dc9cddc54c2a833d145f1c0cb14e [2023-11-10 11:37:30,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:37:30,973 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:37:30,976 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:37:30,976 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:37:30,979 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:37:30,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:37:30" (1/1) ... [2023-11-10 11:37:30,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c77da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:30, skipping insertion in model container [2023-11-10 11:37:30,981 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:37:30" (1/1) ... [2023-11-10 11:37:31,022 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:37:31,148 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/mix005_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-11-10 11:37:31,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:37:31,325 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:37:31,332 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/mix005_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-11-10 11:37:31,372 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:37:31,398 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:37:31,398 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:37:31,404 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:37:31,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:31 WrapperNode [2023-11-10 11:37:31,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:37:31,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:37:31,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:37:31,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:37:31,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:31" (1/1) ... [2023-11-10 11:37:31,428 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:31" (1/1) ... [2023-11-10 11:37:31,454 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2023-11-10 11:37:31,454 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:37:31,455 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:37:31,455 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:37:31,455 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:37:31,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:31" (1/1) ... [2023-11-10 11:37:31,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:31" (1/1) ... [2023-11-10 11:37:31,465 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:31" (1/1) ... [2023-11-10 11:37:31,465 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:31" (1/1) ... [2023-11-10 11:37:31,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:31" (1/1) ... [2023-11-10 11:37:31,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:31" (1/1) ... [2023-11-10 11:37:31,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:31" (1/1) ... [2023-11-10 11:37:31,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:31" (1/1) ... [2023-11-10 11:37:31,481 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:37:31,482 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:37:31,482 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:37:31,482 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:37:31,483 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:31" (1/1) ... [2023-11-10 11:37:31,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:37:31,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:37:31,507 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 11:37:31,527 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 11:37:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:37:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-10 11:37:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:37:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:37:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:37:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-10 11:37:31,541 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-10 11:37:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-10 11:37:31,541 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-10 11:37:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-10 11:37:31,541 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-10 11:37:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-10 11:37:31,541 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-10 11:37:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:37:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-10 11:37:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:37:31,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:37:31,544 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 11:37:31,682 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:37:31,684 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:37:31,939 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:37:32,061 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:37:32,062 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-10 11:37:32,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:37:32 BoogieIcfgContainer [2023-11-10 11:37:32,066 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:37:32,069 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:37:32,069 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:37:32,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:37:32,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:37:30" (1/3) ... [2023-11-10 11:37:32,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@460cad60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:37:32, skipping insertion in model container [2023-11-10 11:37:32,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:31" (2/3) ... [2023-11-10 11:37:32,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@460cad60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:37:32, skipping insertion in model container [2023-11-10 11:37:32,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:37:32" (3/3) ... [2023-11-10 11:37:32,073 INFO L112 eAbstractionObserver]: Analyzing ICFG mix005_power.oepc_pso.oepc_rmo.oepc.i [2023-11-10 11:37:32,085 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:37:32,086 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-10 11:37:32,086 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:37:32,152 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-10 11:37:32,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 137 transitions, 290 flow [2023-11-10 11:37:32,220 INFO L124 PetriNetUnfolderBase]: 3/133 cut-off events. [2023-11-10 11:37:32,220 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:37:32,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 133 events. 3/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-11-10 11:37:32,224 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 137 transitions, 290 flow [2023-11-10 11:37:32,227 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 133 transitions, 278 flow [2023-11-10 11:37:32,235 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:37:32,239 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;@5efe02e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:37:32,240 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-10 11:37:32,250 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:37:32,250 INFO L124 PetriNetUnfolderBase]: 1/49 cut-off events. [2023-11-10 11:37:32,250 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:37:32,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:37:32,251 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] [2023-11-10 11:37:32,251 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 11:37:32,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:37:32,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1310174141, now seen corresponding path program 1 times [2023-11-10 11:37:32,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:37:32,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135732066] [2023-11-10 11:37:32,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:37:32,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:37:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:37:32,671 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 11:37:32,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:37:32,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135732066] [2023-11-10 11:37:32,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135732066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:37:32,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:37:32,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-10 11:37:32,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522775970] [2023-11-10 11:37:32,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:37:32,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-10 11:37:32,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:37:32,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-10 11:37:32,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-10 11:37:32,714 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 137 [2023-11-10 11:37:32,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 133 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 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 11:37:32,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:37:32,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 137 [2023-11-10 11:37:32,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:37:32,898 INFO L124 PetriNetUnfolderBase]: 162/546 cut-off events. [2023-11-10 11:37:32,898 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2023-11-10 11:37:32,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 852 conditions, 546 events. 162/546 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2863 event pairs, 34 based on Foata normal form. 58/575 useless extension candidates. Maximal degree in co-relation 797. Up to 191 conditions per place. [2023-11-10 11:37:32,908 INFO L140 encePairwiseOnDemand]: 131/137 looper letters, 18 selfloop transitions, 2 changer transitions 0/136 dead transitions. [2023-11-10 11:37:32,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 136 transitions, 333 flow [2023-11-10 11:37:32,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-10 11:37:32,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-10 11:37:32,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2023-11-10 11:37:32,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9391727493917275 [2023-11-10 11:37:32,923 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 386 transitions. [2023-11-10 11:37:32,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 386 transitions. [2023-11-10 11:37:32,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:37:32,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 386 transitions. [2023-11-10 11:37:32,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 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 11:37:32,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 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 11:37:32,937 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 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 11:37:32,939 INFO L175 Difference]: Start difference. First operand has 143 places, 133 transitions, 278 flow. Second operand 3 states and 386 transitions. [2023-11-10 11:37:32,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 136 transitions, 333 flow [2023-11-10 11:37:32,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 136 transitions, 326 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-10 11:37:32,946 INFO L231 Difference]: Finished difference. Result has 139 places, 128 transitions, 268 flow [2023-11-10 11:37:32,948 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=139, PETRI_TRANSITIONS=128} [2023-11-10 11:37:32,951 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -4 predicate places. [2023-11-10 11:37:32,951 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 128 transitions, 268 flow [2023-11-10 11:37:32,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 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 11:37:32,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:37:32,952 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:37:32,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:37:32,952 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 11:37:32,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:37:32,953 INFO L85 PathProgramCache]: Analyzing trace with hash -639664346, now seen corresponding path program 1 times [2023-11-10 11:37:32,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:37:32,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312593815] [2023-11-10 11:37:32,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:37:32,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:37:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:37:33,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:37:33,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:37:33,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312593815] [2023-11-10 11:37:33,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312593815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:37:33,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:37:33,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:37:33,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440494860] [2023-11-10 11:37:33,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:37:33,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:37:33,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:37:33,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:37:33,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:37:33,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 137 [2023-11-10 11:37:33,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 128 transitions, 268 flow. Second operand has 7 states, 7 states have (on average 102.42857142857143) internal successors, (717), 7 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:37:33,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:37:33,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 137 [2023-11-10 11:37:33,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:37:36,733 INFO L124 PetriNetUnfolderBase]: 15276/27747 cut-off events. [2023-11-10 11:37:36,733 INFO L125 PetriNetUnfolderBase]: For 981/981 co-relation queries the response was YES. [2023-11-10 11:37:36,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49741 conditions, 27747 events. 15276/27747 cut-off events. For 981/981 co-relation queries the response was YES. Maximal size of possible extension queue 1103. Compared 239465 event pairs, 1548 based on Foata normal form. 0/27316 useless extension candidates. Maximal degree in co-relation 49682. Up to 8259 conditions per place. [2023-11-10 11:37:36,898 INFO L140 encePairwiseOnDemand]: 121/137 looper letters, 43 selfloop transitions, 10 changer transitions 128/265 dead transitions. [2023-11-10 11:37:36,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 265 transitions, 894 flow [2023-11-10 11:37:36,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:37:36,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:37:36,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1472 transitions. [2023-11-10 11:37:36,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8265019651880966 [2023-11-10 11:37:36,902 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1472 transitions. [2023-11-10 11:37:36,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1472 transitions. [2023-11-10 11:37:36,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:37:36,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1472 transitions. [2023-11-10 11:37:36,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 113.23076923076923) internal successors, (1472), 13 states have internal predecessors, (1472), 0 states have call successors, (0), 0 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 11:37:36,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 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 11:37:36,909 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 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 11:37:36,909 INFO L175 Difference]: Start difference. First operand has 139 places, 128 transitions, 268 flow. Second operand 13 states and 1472 transitions. [2023-11-10 11:37:36,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 265 transitions, 894 flow [2023-11-10 11:37:36,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 265 transitions, 876 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-10 11:37:36,916 INFO L231 Difference]: Finished difference. Result has 161 places, 119 transitions, 356 flow [2023-11-10 11:37:36,916 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=356, PETRI_PLACES=161, PETRI_TRANSITIONS=119} [2023-11-10 11:37:36,917 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, 18 predicate places. [2023-11-10 11:37:36,917 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 119 transitions, 356 flow [2023-11-10 11:37:36,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 102.42857142857143) internal successors, (717), 7 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:37:36,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:37:36,918 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] [2023-11-10 11:37:36,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:37:36,918 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 11:37:36,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:37:36,920 INFO L85 PathProgramCache]: Analyzing trace with hash -948260982, now seen corresponding path program 1 times [2023-11-10 11:37:36,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:37:36,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100532879] [2023-11-10 11:37:36,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:37:36,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:37:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:37:37,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:37:37,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:37:37,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100532879] [2023-11-10 11:37:37,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100532879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:37:37,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:37:37,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:37:37,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520722194] [2023-11-10 11:37:37,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:37:37,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:37:37,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:37:37,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:37:37,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:37:37,276 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 137 [2023-11-10 11:37:37,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 119 transitions, 356 flow. Second operand has 7 states, 7 states have (on average 102.57142857142857) internal successors, (718), 7 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:37:37,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:37:37,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 137 [2023-11-10 11:37:37,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:37:39,194 INFO L124 PetriNetUnfolderBase]: 8304/14704 cut-off events. [2023-11-10 11:37:39,195 INFO L125 PetriNetUnfolderBase]: For 28601/28637 co-relation queries the response was YES. [2023-11-10 11:37:39,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46097 conditions, 14704 events. 8304/14704 cut-off events. For 28601/28637 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 115258 event pairs, 2488 based on Foata normal form. 286/14658 useless extension candidates. Maximal degree in co-relation 46022. Up to 5578 conditions per place. [2023-11-10 11:37:39,363 INFO L140 encePairwiseOnDemand]: 121/137 looper letters, 45 selfloop transitions, 20 changer transitions 94/243 dead transitions. [2023-11-10 11:37:39,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 243 transitions, 1374 flow [2023-11-10 11:37:39,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:37:39,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:37:39,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1456 transitions. [2023-11-10 11:37:39,367 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8175182481751825 [2023-11-10 11:37:39,367 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1456 transitions. [2023-11-10 11:37:39,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1456 transitions. [2023-11-10 11:37:39,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:37:39,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1456 transitions. [2023-11-10 11:37:39,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 112.0) internal successors, (1456), 13 states have internal predecessors, (1456), 0 states have call successors, (0), 0 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 11:37:39,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 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 11:37:39,374 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 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 11:37:39,374 INFO L175 Difference]: Start difference. First operand has 161 places, 119 transitions, 356 flow. Second operand 13 states and 1456 transitions. [2023-11-10 11:37:39,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 243 transitions, 1374 flow [2023-11-10 11:37:39,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 243 transitions, 1322 flow, removed 24 selfloop flow, removed 4 redundant places. [2023-11-10 11:37:39,503 INFO L231 Difference]: Finished difference. Result has 156 places, 127 transitions, 505 flow [2023-11-10 11:37:39,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=505, PETRI_PLACES=156, PETRI_TRANSITIONS=127} [2023-11-10 11:37:39,504 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, 13 predicate places. [2023-11-10 11:37:39,504 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 127 transitions, 505 flow [2023-11-10 11:37:39,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 102.57142857142857) internal successors, (718), 7 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:37:39,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:37:39,505 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 11:37:39,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 11:37:39,505 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 11:37:39,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:37:39,506 INFO L85 PathProgramCache]: Analyzing trace with hash 27657685, now seen corresponding path program 1 times [2023-11-10 11:37:39,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:37:39,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033813325] [2023-11-10 11:37:39,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:37:39,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:37:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:37:39,714 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 11:37:39,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:37:39,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033813325] [2023-11-10 11:37:39,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033813325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:37:39,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:37:39,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:37:39,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645765069] [2023-11-10 11:37:39,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:37:39,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:37:39,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:37:39,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:37:39,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:37:39,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 137 [2023-11-10 11:37:39,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 127 transitions, 505 flow. Second operand has 6 states, 6 states have (on average 112.0) internal successors, (672), 6 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 11:37:39,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:37:39,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 137 [2023-11-10 11:37:39,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:37:41,293 INFO L124 PetriNetUnfolderBase]: 5138/9419 cut-off events. [2023-11-10 11:37:41,297 INFO L125 PetriNetUnfolderBase]: For 26596/29371 co-relation queries the response was YES. [2023-11-10 11:37:41,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31366 conditions, 9419 events. 5138/9419 cut-off events. For 26596/29371 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 73123 event pairs, 1938 based on Foata normal form. 335/9208 useless extension candidates. Maximal degree in co-relation 31281. Up to 3649 conditions per place. [2023-11-10 11:37:41,393 INFO L140 encePairwiseOnDemand]: 131/137 looper letters, 26 selfloop transitions, 4 changer transitions 52/187 dead transitions. [2023-11-10 11:37:41,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 187 transitions, 985 flow [2023-11-10 11:37:41,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-10 11:37:41,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-10 11:37:41,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1061 transitions. [2023-11-10 11:37:41,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8605028386050284 [2023-11-10 11:37:41,396 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1061 transitions. [2023-11-10 11:37:41,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1061 transitions. [2023-11-10 11:37:41,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:37:41,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1061 transitions. [2023-11-10 11:37:41,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 117.88888888888889) internal successors, (1061), 9 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:37:41,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 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 11:37:41,402 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 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 11:37:41,402 INFO L175 Difference]: Start difference. First operand has 156 places, 127 transitions, 505 flow. Second operand 9 states and 1061 transitions. [2023-11-10 11:37:41,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 187 transitions, 985 flow [2023-11-10 11:37:41,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 187 transitions, 931 flow, removed 27 selfloop flow, removed 12 redundant places. [2023-11-10 11:37:41,547 INFO L231 Difference]: Finished difference. Result has 150 places, 127 transitions, 501 flow [2023-11-10 11:37:41,548 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=501, PETRI_PLACES=150, PETRI_TRANSITIONS=127} [2023-11-10 11:37:41,549 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, 7 predicate places. [2023-11-10 11:37:41,549 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 127 transitions, 501 flow [2023-11-10 11:37:41,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.0) internal successors, (672), 6 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 11:37:41,550 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:37:41,550 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 11:37:41,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-10 11:37:41,553 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 11:37:41,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:37:41,554 INFO L85 PathProgramCache]: Analyzing trace with hash -334610341, now seen corresponding path program 1 times [2023-11-10 11:37:41,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:37:41,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34394505] [2023-11-10 11:37:41,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:37:41,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:37:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:37:41,740 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 11:37:41,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:37:41,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34394505] [2023-11-10 11:37:41,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34394505] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:37:41,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:37:41,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:37:41,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135502358] [2023-11-10 11:37:41,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:37:41,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:37:41,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:37:41,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:37:41,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:37:41,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 137 [2023-11-10 11:37:41,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 127 transitions, 501 flow. Second operand has 6 states, 6 states have (on average 109.33333333333333) internal successors, (656), 6 states have internal predecessors, (656), 0 states have call successors, (0), 0 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 11:37:41,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:37:41,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 137 [2023-11-10 11:37:41,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:37:45,594 INFO L124 PetriNetUnfolderBase]: 19949/34286 cut-off events. [2023-11-10 11:37:45,595 INFO L125 PetriNetUnfolderBase]: For 34069/44801 co-relation queries the response was YES. [2023-11-10 11:37:45,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82210 conditions, 34286 events. 19949/34286 cut-off events. For 34069/44801 co-relation queries the response was YES. Maximal size of possible extension queue 1819. Compared 302898 event pairs, 2769 based on Foata normal form. 48/32597 useless extension candidates. Maximal degree in co-relation 82128. Up to 12358 conditions per place. [2023-11-10 11:37:45,963 INFO L140 encePairwiseOnDemand]: 126/137 looper letters, 95 selfloop transitions, 20 changer transitions 0/216 dead transitions. [2023-11-10 11:37:45,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 216 transitions, 1020 flow [2023-11-10 11:37:45,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 11:37:45,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 11:37:45,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1179 transitions. [2023-11-10 11:37:45,970 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8605839416058394 [2023-11-10 11:37:45,970 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1179 transitions. [2023-11-10 11:37:45,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1179 transitions. [2023-11-10 11:37:45,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:37:45,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1179 transitions. [2023-11-10 11:37:45,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 117.9) internal successors, (1179), 10 states have internal predecessors, (1179), 0 states have call successors, (0), 0 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 11:37:45,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 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 11:37:45,975 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 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 11:37:45,975 INFO L175 Difference]: Start difference. First operand has 150 places, 127 transitions, 501 flow. Second operand 10 states and 1179 transitions. [2023-11-10 11:37:45,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 216 transitions, 1020 flow [2023-11-10 11:37:46,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 216 transitions, 1000 flow, removed 6 selfloop flow, removed 8 redundant places. [2023-11-10 11:37:46,041 INFO L231 Difference]: Finished difference. Result has 151 places, 145 transitions, 624 flow [2023-11-10 11:37:46,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=624, PETRI_PLACES=151, PETRI_TRANSITIONS=145} [2023-11-10 11:37:46,043 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, 8 predicate places. [2023-11-10 11:37:46,043 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 145 transitions, 624 flow [2023-11-10 11:37:46,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.33333333333333) internal successors, (656), 6 states have internal predecessors, (656), 0 states have call successors, (0), 0 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 11:37:46,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:37:46,044 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:37:46,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-10 11:37:46,044 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 11:37:46,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:37:46,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1518470575, now seen corresponding path program 1 times [2023-11-10 11:37:46,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:37:46,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792340767] [2023-11-10 11:37:46,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:37:46,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:37:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:37:46,221 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 11:37:46,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:37:46,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792340767] [2023-11-10 11:37:46,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792340767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:37:46,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:37:46,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:37:46,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697153908] [2023-11-10 11:37:46,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:37:46,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:37:46,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:37:46,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:37:46,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:37:46,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 137 [2023-11-10 11:37:46,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 145 transitions, 624 flow. Second operand has 6 states, 6 states have (on average 111.5) internal successors, (669), 6 states have internal predecessors, (669), 0 states have call successors, (0), 0 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 11:37:46,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:37:46,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 137 [2023-11-10 11:37:46,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:37:48,692 INFO L124 PetriNetUnfolderBase]: 6760/18986 cut-off events. [2023-11-10 11:37:48,693 INFO L125 PetriNetUnfolderBase]: For 25856/29424 co-relation queries the response was YES. [2023-11-10 11:37:48,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51542 conditions, 18986 events. 6760/18986 cut-off events. For 25856/29424 co-relation queries the response was YES. Maximal size of possible extension queue 1212. Compared 226728 event pairs, 2856 based on Foata normal form. 395/18063 useless extension candidates. Maximal degree in co-relation 51459. Up to 3290 conditions per place. [2023-11-10 11:37:48,888 INFO L140 encePairwiseOnDemand]: 131/137 looper letters, 62 selfloop transitions, 15 changer transitions 4/198 dead transitions. [2023-11-10 11:37:48,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 198 transitions, 1004 flow [2023-11-10 11:37:48,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-10 11:37:48,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-10 11:37:48,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1057 transitions. [2023-11-10 11:37:48,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8572587185725872 [2023-11-10 11:37:48,890 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1057 transitions. [2023-11-10 11:37:48,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1057 transitions. [2023-11-10 11:37:48,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:37:48,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1057 transitions. [2023-11-10 11:37:48,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 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 11:37:48,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 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 11:37:48,895 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 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 11:37:48,895 INFO L175 Difference]: Start difference. First operand has 151 places, 145 transitions, 624 flow. Second operand 9 states and 1057 transitions. [2023-11-10 11:37:48,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 198 transitions, 1004 flow [2023-11-10 11:37:48,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 198 transitions, 1002 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-10 11:37:48,958 INFO L231 Difference]: Finished difference. Result has 165 places, 152 transitions, 738 flow [2023-11-10 11:37:48,958 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=738, PETRI_PLACES=165, PETRI_TRANSITIONS=152} [2023-11-10 11:37:48,959 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, 22 predicate places. [2023-11-10 11:37:48,959 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 152 transitions, 738 flow [2023-11-10 11:37:48,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 111.5) internal successors, (669), 6 states have internal predecessors, (669), 0 states have call successors, (0), 0 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 11:37:48,959 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:37:48,959 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:37:48,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-10 11:37:48,959 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 11:37:48,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:37:48,960 INFO L85 PathProgramCache]: Analyzing trace with hash 658359876, now seen corresponding path program 1 times [2023-11-10 11:37:48,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:37:48,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80825120] [2023-11-10 11:37:48,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:37:48,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:37:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:37:49,154 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 11:37:49,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:37:49,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80825120] [2023-11-10 11:37:49,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80825120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:37:49,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:37:49,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:37:49,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713849422] [2023-11-10 11:37:49,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:37:49,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:37:49,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:37:49,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:37:49,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:37:49,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 137 [2023-11-10 11:37:49,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 152 transitions, 738 flow. Second operand has 7 states, 7 states have (on average 101.42857142857143) internal successors, (710), 7 states have internal predecessors, (710), 0 states have call successors, (0), 0 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 11:37:49,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:37:49,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 137 [2023-11-10 11:37:49,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:37:53,819 INFO L124 PetriNetUnfolderBase]: 14473/35637 cut-off events. [2023-11-10 11:37:53,820 INFO L125 PetriNetUnfolderBase]: For 72524/77554 co-relation queries the response was YES. [2023-11-10 11:37:54,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108191 conditions, 35637 events. 14473/35637 cut-off events. For 72524/77554 co-relation queries the response was YES. Maximal size of possible extension queue 1973. Compared 432455 event pairs, 3577 based on Foata normal form. 624/34265 useless extension candidates. Maximal degree in co-relation 108095. Up to 7726 conditions per place. [2023-11-10 11:37:54,194 INFO L140 encePairwiseOnDemand]: 120/137 looper letters, 111 selfloop transitions, 54 changer transitions 6/271 dead transitions. [2023-11-10 11:37:54,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 271 transitions, 1865 flow [2023-11-10 11:37:54,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-10 11:37:54,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-10 11:37:54,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1208 transitions. [2023-11-10 11:37:54,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8015925680159257 [2023-11-10 11:37:54,197 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1208 transitions. [2023-11-10 11:37:54,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1208 transitions. [2023-11-10 11:37:54,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:37:54,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1208 transitions. [2023-11-10 11:37:54,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 109.81818181818181) internal successors, (1208), 11 states have internal predecessors, (1208), 0 states have call successors, (0), 0 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 11:37:54,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 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 11:37:54,201 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 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 11:37:54,201 INFO L175 Difference]: Start difference. First operand has 165 places, 152 transitions, 738 flow. Second operand 11 states and 1208 transitions. [2023-11-10 11:37:54,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 271 transitions, 1865 flow [2023-11-10 11:37:54,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 271 transitions, 1832 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-11-10 11:37:54,470 INFO L231 Difference]: Finished difference. Result has 183 places, 194 transitions, 1412 flow [2023-11-10 11:37:54,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=723, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1412, PETRI_PLACES=183, PETRI_TRANSITIONS=194} [2023-11-10 11:37:54,471 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, 40 predicate places. [2023-11-10 11:37:54,471 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 194 transitions, 1412 flow [2023-11-10 11:37:54,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 101.42857142857143) internal successors, (710), 7 states have internal predecessors, (710), 0 states have call successors, (0), 0 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 11:37:54,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:37:54,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:37:54,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-10 11:37:54,471 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 11:37:54,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:37:54,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1741325084, now seen corresponding path program 2 times [2023-11-10 11:37:54,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:37:54,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512683061] [2023-11-10 11:37:54,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:37:54,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:37:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:37:54,587 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 11:37:54,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:37:54,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512683061] [2023-11-10 11:37:54,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512683061] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:37:54,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:37:54,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:37:54,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477454207] [2023-11-10 11:37:54,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:37:54,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:37:54,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:37:54,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:37:54,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:37:54,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 137 [2023-11-10 11:37:54,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 194 transitions, 1412 flow. Second operand has 7 states, 7 states have (on average 109.28571428571429) internal successors, (765), 7 states have internal predecessors, (765), 0 states have call successors, (0), 0 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 11:37:54,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:37:54,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 137 [2023-11-10 11:37:54,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:38:03,374 INFO L124 PetriNetUnfolderBase]: 36663/65977 cut-off events. [2023-11-10 11:38:03,375 INFO L125 PetriNetUnfolderBase]: For 220577/256394 co-relation queries the response was YES. [2023-11-10 11:38:04,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226541 conditions, 65977 events. 36663/65977 cut-off events. For 220577/256394 co-relation queries the response was YES. Maximal size of possible extension queue 3809. Compared 676493 event pairs, 1896 based on Foata normal form. 1399/65302 useless extension candidates. Maximal degree in co-relation 226435. Up to 13925 conditions per place. [2023-11-10 11:38:04,203 INFO L140 encePairwiseOnDemand]: 126/137 looper letters, 139 selfloop transitions, 38 changer transitions 14/331 dead transitions. [2023-11-10 11:38:04,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 331 transitions, 2754 flow [2023-11-10 11:38:04,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:38:04,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:38:04,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1537 transitions. [2023-11-10 11:38:04,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8629983155530601 [2023-11-10 11:38:04,206 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1537 transitions. [2023-11-10 11:38:04,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1537 transitions. [2023-11-10 11:38:04,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:38:04,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1537 transitions. [2023-11-10 11:38:04,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 118.23076923076923) internal successors, (1537), 13 states have internal predecessors, (1537), 0 states have call successors, (0), 0 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 11:38:04,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 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 11:38:04,211 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 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 11:38:04,212 INFO L175 Difference]: Start difference. First operand has 183 places, 194 transitions, 1412 flow. Second operand 13 states and 1537 transitions. [2023-11-10 11:38:04,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 331 transitions, 2754 flow [2023-11-10 11:38:05,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 331 transitions, 2690 flow, removed 32 selfloop flow, removed 0 redundant places. [2023-11-10 11:38:05,583 INFO L231 Difference]: Finished difference. Result has 201 places, 209 transitions, 1581 flow [2023-11-10 11:38:05,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1348, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1581, PETRI_PLACES=201, PETRI_TRANSITIONS=209} [2023-11-10 11:38:05,584 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, 58 predicate places. [2023-11-10 11:38:05,584 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 209 transitions, 1581 flow [2023-11-10 11:38:05,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 109.28571428571429) internal successors, (765), 7 states have internal predecessors, (765), 0 states have call successors, (0), 0 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 11:38:05,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:38:05,584 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:38:05,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-10 11:38:05,584 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 11:38:05,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:38:05,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1243864227, now seen corresponding path program 1 times [2023-11-10 11:38:05,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:38:05,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444391508] [2023-11-10 11:38:05,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:38:05,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:38:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:38:05,737 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 11:38:05,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:38:05,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444391508] [2023-11-10 11:38:05,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444391508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:38:05,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:38:05,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:38:05,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57909232] [2023-11-10 11:38:05,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:38:05,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:38:05,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:38:05,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:38:05,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:38:05,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 137 [2023-11-10 11:38:05,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 209 transitions, 1581 flow. Second operand has 7 states, 7 states have (on average 101.71428571428571) internal successors, (712), 7 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:05,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:38:05,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 137 [2023-11-10 11:38:05,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:38:10,513 INFO L124 PetriNetUnfolderBase]: 11358/33958 cut-off events. [2023-11-10 11:38:10,513 INFO L125 PetriNetUnfolderBase]: For 159915/189129 co-relation queries the response was YES. [2023-11-10 11:38:10,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131510 conditions, 33958 events. 11358/33958 cut-off events. For 159915/189129 co-relation queries the response was YES. Maximal size of possible extension queue 3515. Compared 473740 event pairs, 1062 based on Foata normal form. 650/32580 useless extension candidates. Maximal degree in co-relation 131389. Up to 7583 conditions per place. [2023-11-10 11:38:11,064 INFO L140 encePairwiseOnDemand]: 120/137 looper letters, 131 selfloop transitions, 84 changer transitions 21/357 dead transitions. [2023-11-10 11:38:11,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 357 transitions, 3494 flow [2023-11-10 11:38:11,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-10 11:38:11,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-10 11:38:11,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1211 transitions. [2023-11-10 11:38:11,067 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8035832780358327 [2023-11-10 11:38:11,067 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1211 transitions. [2023-11-10 11:38:11,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1211 transitions. [2023-11-10 11:38:11,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:38:11,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1211 transitions. [2023-11-10 11:38:11,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 110.0909090909091) internal successors, (1211), 11 states have internal predecessors, (1211), 0 states have call successors, (0), 0 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 11:38:11,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 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 11:38:11,072 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 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 11:38:11,072 INFO L175 Difference]: Start difference. First operand has 201 places, 209 transitions, 1581 flow. Second operand 11 states and 1211 transitions. [2023-11-10 11:38:11,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 357 transitions, 3494 flow [2023-11-10 11:38:15,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 357 transitions, 3367 flow, removed 54 selfloop flow, removed 4 redundant places. [2023-11-10 11:38:15,956 INFO L231 Difference]: Finished difference. Result has 216 places, 261 transitions, 2592 flow [2023-11-10 11:38:15,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1474, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2592, PETRI_PLACES=216, PETRI_TRANSITIONS=261} [2023-11-10 11:38:15,957 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, 73 predicate places. [2023-11-10 11:38:15,957 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 261 transitions, 2592 flow [2023-11-10 11:38:15,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 101.71428571428571) internal successors, (712), 7 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:15,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:38:15,957 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:38:15,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-10 11:38:15,958 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 11:38:15,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:38:15,958 INFO L85 PathProgramCache]: Analyzing trace with hash 585732949, now seen corresponding path program 2 times [2023-11-10 11:38:15,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:38:15,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981853369] [2023-11-10 11:38:15,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:38:15,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:38:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:38:16,122 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 11:38:16,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:38:16,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981853369] [2023-11-10 11:38:16,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981853369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:38:16,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:38:16,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:38:16,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419493846] [2023-11-10 11:38:16,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:38:16,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:38:16,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:38:16,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:38:16,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:38:16,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 137 [2023-11-10 11:38:16,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 261 transitions, 2592 flow. Second operand has 8 states, 8 states have (on average 109.25) internal successors, (874), 8 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:16,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:38:16,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 137 [2023-11-10 11:38:16,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:38:28,752 INFO L124 PetriNetUnfolderBase]: 46090/82155 cut-off events. [2023-11-10 11:38:28,752 INFO L125 PetriNetUnfolderBase]: For 444850/509943 co-relation queries the response was YES. [2023-11-10 11:38:29,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312094 conditions, 82155 events. 46090/82155 cut-off events. For 444850/509943 co-relation queries the response was YES. Maximal size of possible extension queue 5135. Compared 871694 event pairs, 2095 based on Foata normal form. 2019/81357 useless extension candidates. Maximal degree in co-relation 311964. Up to 10401 conditions per place. [2023-11-10 11:38:30,002 INFO L140 encePairwiseOnDemand]: 126/137 looper letters, 147 selfloop transitions, 58 changer transitions 81/431 dead transitions. [2023-11-10 11:38:30,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 431 transitions, 4669 flow [2023-11-10 11:38:30,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-10 11:38:30,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-10 11:38:30,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1894 transitions. [2023-11-10 11:38:30,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8640510948905109 [2023-11-10 11:38:30,005 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1894 transitions. [2023-11-10 11:38:30,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1894 transitions. [2023-11-10 11:38:30,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:38:30,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1894 transitions. [2023-11-10 11:38:30,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 118.375) internal successors, (1894), 16 states have internal predecessors, (1894), 0 states have call successors, (0), 0 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 11:38:30,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 137.0) internal successors, (2329), 17 states have internal predecessors, (2329), 0 states have call successors, (0), 0 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 11:38:30,012 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 137.0) internal successors, (2329), 17 states have internal predecessors, (2329), 0 states have call successors, (0), 0 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 11:38:30,012 INFO L175 Difference]: Start difference. First operand has 216 places, 261 transitions, 2592 flow. Second operand 16 states and 1894 transitions. [2023-11-10 11:38:30,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 431 transitions, 4669 flow [2023-11-10 11:38:42,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 431 transitions, 4507 flow, removed 74 selfloop flow, removed 1 redundant places. [2023-11-10 11:38:42,602 INFO L231 Difference]: Finished difference. Result has 234 places, 238 transitions, 2250 flow [2023-11-10 11:38:42,602 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=2274, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2250, PETRI_PLACES=234, PETRI_TRANSITIONS=238} [2023-11-10 11:38:42,602 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, 91 predicate places. [2023-11-10 11:38:42,603 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 238 transitions, 2250 flow [2023-11-10 11:38:42,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 109.25) internal successors, (874), 8 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:42,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:38:42,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:38:42,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-10 11:38:42,603 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:38:42,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:38:42,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1668614504, now seen corresponding path program 1 times [2023-11-10 11:38:42,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:38:42,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881984017] [2023-11-10 11:38:42,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:38:42,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:38:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:38:42,875 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 11:38:42,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:38:42,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881984017] [2023-11-10 11:38:42,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881984017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:38:42,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:38:42,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-10 11:38:42,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843972739] [2023-11-10 11:38:42,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:38:42,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-10 11:38:42,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:38:42,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-10 11:38:42,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-10 11:38:42,877 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 137 [2023-11-10 11:38:42,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 238 transitions, 2250 flow. Second operand has 9 states, 9 states have (on average 109.33333333333333) internal successors, (984), 9 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:38:42,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:38:42,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 137 [2023-11-10 11:38:42,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:38:55,358 INFO L124 PetriNetUnfolderBase]: 45445/80795 cut-off events. [2023-11-10 11:38:55,359 INFO L125 PetriNetUnfolderBase]: For 515498/576441 co-relation queries the response was YES. [2023-11-10 11:38:56,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335240 conditions, 80795 events. 45445/80795 cut-off events. For 515498/576441 co-relation queries the response was YES. Maximal size of possible extension queue 5138. Compared 859574 event pairs, 2110 based on Foata normal form. 1565/79543 useless extension candidates. Maximal degree in co-relation 335177. Up to 10192 conditions per place. [2023-11-10 11:38:56,683 INFO L140 encePairwiseOnDemand]: 126/137 looper letters, 90 selfloop transitions, 57 changer transitions 97/386 dead transitions. [2023-11-10 11:38:56,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 386 transitions, 4108 flow [2023-11-10 11:38:56,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-10 11:38:56,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-10 11:38:56,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2200 transitions. [2023-11-10 11:38:56,687 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8451786400307337 [2023-11-10 11:38:56,687 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2200 transitions. [2023-11-10 11:38:56,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2200 transitions. [2023-11-10 11:38:56,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:38:56,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2200 transitions. [2023-11-10 11:38:56,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 115.78947368421052) internal successors, (2200), 19 states have internal predecessors, (2200), 0 states have call successors, (0), 0 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 11:38:56,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 137.0) internal successors, (2740), 20 states have internal predecessors, (2740), 0 states have call successors, (0), 0 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 11:38:56,694 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 137.0) internal successors, (2740), 20 states have internal predecessors, (2740), 0 states have call successors, (0), 0 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 11:38:56,694 INFO L175 Difference]: Start difference. First operand has 234 places, 238 transitions, 2250 flow. Second operand 19 states and 2200 transitions. [2023-11-10 11:38:56,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 386 transitions, 4108 flow [2023-11-10 11:39:33,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 386 transitions, 3371 flow, removed 318 selfloop flow, removed 28 redundant places. [2023-11-10 11:39:33,515 INFO L231 Difference]: Finished difference. Result has 216 places, 226 transitions, 1847 flow [2023-11-10 11:39:33,516 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1783, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1847, PETRI_PLACES=216, PETRI_TRANSITIONS=226} [2023-11-10 11:39:33,516 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, 73 predicate places. [2023-11-10 11:39:33,516 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 226 transitions, 1847 flow [2023-11-10 11:39:33,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 109.33333333333333) internal successors, (984), 9 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:39:33,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:39:33,517 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:39:33,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-10 11:39:33,517 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:39:33,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:39:33,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2086604511, now seen corresponding path program 1 times [2023-11-10 11:39:33,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:39:33,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320528367] [2023-11-10 11:39:33,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:39:33,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:39:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:39:33,949 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 11:39:33,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:39:33,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320528367] [2023-11-10 11:39:33,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320528367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:39:33,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:39:33,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:39:33,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780496966] [2023-11-10 11:39:33,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:39:33,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:39:33,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:39:33,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:39:33,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:39:33,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 137 [2023-11-10 11:39:33,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 226 transitions, 1847 flow. Second operand has 8 states, 8 states have (on average 100.125) internal successors, (801), 8 states have internal predecessors, (801), 0 states have call successors, (0), 0 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 11:39:33,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:39:33,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 137 [2023-11-10 11:39:33,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand