/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:12:58,332 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:12:58,378 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-12-09 15:12:58,408 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:12:58,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:12:58,409 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:12:58,410 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:12:58,410 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:12:58,411 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:12:58,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:12:58,414 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:12:58,414 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:12:58,415 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:12:58,416 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:12:58,416 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:12:58,416 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:12:58,416 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:12:58,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:12:58,416 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:12:58,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:12:58,417 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:12:58,417 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:12:58,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:12:58,417 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:12:58,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:12:58,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:12:58,418 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:12:58,418 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:12:58,418 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:12:58,418 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:12:58,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:12:58,419 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:12:58,419 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:12:58,419 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:12:58,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:12:58,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:12:58,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:12:58,640 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:12:58,640 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:12:58,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c [2023-12-09 15:12:59,674 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:12:59,830 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:12:59,831 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c [2023-12-09 15:12:59,836 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4de5077e7/5e19b2d782c24094858794e763b52230/FLAG2b975b744 [2023-12-09 15:12:59,847 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4de5077e7/5e19b2d782c24094858794e763b52230 [2023-12-09 15:12:59,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:12:59,850 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:12:59,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:12:59,851 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:12:59,858 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:12:59,859 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:12:59" (1/1) ... [2023-12-09 15:12:59,860 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf63c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:12:59, skipping insertion in model container [2023-12-09 15:12:59,861 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:12:59" (1/1) ... [2023-12-09 15:12:59,883 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:13:00,000 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c[2329,2342] [2023-12-09 15:13:00,005 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:13:00,014 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:13:00,038 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c[2329,2342] [2023-12-09 15:13:00,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:13:00,049 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:13:00,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:00 WrapperNode [2023-12-09 15:13:00,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:13:00,050 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:13:00,050 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:13:00,050 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:13:00,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:00" (1/1) ... [2023-12-09 15:13:00,059 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:00" (1/1) ... [2023-12-09 15:13:00,077 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 127 [2023-12-09 15:13:00,077 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:13:00,078 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:13:00,078 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:13:00,078 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:13:00,084 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:00" (1/1) ... [2023-12-09 15:13:00,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:00" (1/1) ... [2023-12-09 15:13:00,088 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:00" (1/1) ... [2023-12-09 15:13:00,088 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:00" (1/1) ... [2023-12-09 15:13:00,093 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:00" (1/1) ... [2023-12-09 15:13:00,094 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:00" (1/1) ... [2023-12-09 15:13:00,095 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:00" (1/1) ... [2023-12-09 15:13:00,096 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:00" (1/1) ... [2023-12-09 15:13:00,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:13:00,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:13:00,098 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:13:00,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:13:00,099 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:00" (1/1) ... [2023-12-09 15:13:00,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:13:00,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:13:00,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-09 15:13:00,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-09 15:13:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:13:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:13:00,143 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:13:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:13:00,143 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:13:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:13:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:13:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:13:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:13:00,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:13:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:13:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:13:00,145 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:13:00,219 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:13:00,229 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:13:00,418 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:13:00,427 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:13:00,427 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 15:13:00,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:13:00 BoogieIcfgContainer [2023-12-09 15:13:00,429 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:13:00,430 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:13:00,430 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:13:00,432 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:13:00,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:12:59" (1/3) ... [2023-12-09 15:13:00,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560f5b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:13:00, skipping insertion in model container [2023-12-09 15:13:00,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:00" (2/3) ... [2023-12-09 15:13:00,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560f5b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:13:00, skipping insertion in model container [2023-12-09 15:13:00,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:13:00" (3/3) ... [2023-12-09 15:13:00,434 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-symm.wvr.c [2023-12-09 15:13:00,447 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:13:00,447 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:13:00,448 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:13:00,508 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-09 15:13:00,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 168 transitions, 350 flow [2023-12-09 15:13:00,597 INFO L124 PetriNetUnfolderBase]: 11/166 cut-off events. [2023-12-09 15:13:00,597 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:13:00,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 166 events. 11/166 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 246 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-12-09 15:13:00,603 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 168 transitions, 350 flow [2023-12-09 15:13:00,606 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 157 transitions, 326 flow [2023-12-09 15:13:00,613 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:13:00,618 INFO L362 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5982503a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:13:00,618 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-09 15:13:00,647 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:13:00,648 INFO L124 PetriNetUnfolderBase]: 11/156 cut-off events. [2023-12-09 15:13:00,648 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:13:00,648 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:00,649 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:00,649 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:00,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:00,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1555931874, now seen corresponding path program 1 times [2023-12-09 15:13:00,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:00,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034971031] [2023-12-09 15:13:00,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:00,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:01,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:01,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:01,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034971031] [2023-12-09 15:13:01,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034971031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:01,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:01,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:01,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407363244] [2023-12-09 15:13:01,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:01,566 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:01,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:01,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:01,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:01,605 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 168 [2023-12-09 15:13:01,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 157 transitions, 326 flow. Second operand has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:01,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:01,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 168 [2023-12-09 15:13:01,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:02,158 INFO L124 PetriNetUnfolderBase]: 136/865 cut-off events. [2023-12-09 15:13:02,158 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2023-12-09 15:13:02,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1284 conditions, 865 events. 136/865 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 5744 event pairs, 51 based on Foata normal form. 45/821 useless extension candidates. Maximal degree in co-relation 902. Up to 141 conditions per place. [2023-12-09 15:13:02,169 INFO L140 encePairwiseOnDemand]: 141/168 looper letters, 113 selfloop transitions, 8 changer transitions 42/266 dead transitions. [2023-12-09 15:13:02,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 266 transitions, 900 flow [2023-12-09 15:13:02,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 15:13:02,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 15:13:02,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2568 transitions. [2023-12-09 15:13:02,187 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7278911564625851 [2023-12-09 15:13:02,188 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2568 transitions. [2023-12-09 15:13:02,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2568 transitions. [2023-12-09 15:13:02,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:02,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2568 transitions. [2023-12-09 15:13:02,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 122.28571428571429) internal successors, (2568), 21 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:02,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 168.0) internal successors, (3696), 22 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:02,211 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 168.0) internal successors, (3696), 22 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:02,216 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 20 predicate places. [2023-12-09 15:13:02,216 INFO L500 AbstractCegarLoop]: Abstraction has has 173 places, 266 transitions, 900 flow [2023-12-09 15:13:02,217 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:02,217 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:02,217 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:02,217 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:13:02,218 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:02,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:02,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1433137604, now seen corresponding path program 2 times [2023-12-09 15:13:02,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:02,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920467238] [2023-12-09 15:13:02,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:02,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:02,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:02,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:02,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920467238] [2023-12-09 15:13:02,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920467238] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:02,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:02,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:02,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897063837] [2023-12-09 15:13:02,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:02,519 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:02,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:02,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:02,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:02,521 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 168 [2023-12-09 15:13:02,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 266 transitions, 900 flow. Second operand has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:02,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:02,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 168 [2023-12-09 15:13:02,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:03,007 INFO L124 PetriNetUnfolderBase]: 218/1291 cut-off events. [2023-12-09 15:13:03,008 INFO L125 PetriNetUnfolderBase]: For 401/643 co-relation queries the response was YES. [2023-12-09 15:13:03,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2760 conditions, 1291 events. 218/1291 cut-off events. For 401/643 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9036 event pairs, 21 based on Foata normal form. 18/1207 useless extension candidates. Maximal degree in co-relation 1739. Up to 273 conditions per place. [2023-12-09 15:13:03,015 INFO L140 encePairwiseOnDemand]: 146/168 looper letters, 259 selfloop transitions, 61 changer transitions 107/530 dead transitions. [2023-12-09 15:13:03,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 530 transitions, 2882 flow [2023-12-09 15:13:03,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-09 15:13:03,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-12-09 15:13:03,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3272 transitions. [2023-12-09 15:13:03,021 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7213403880070547 [2023-12-09 15:13:03,021 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 3272 transitions. [2023-12-09 15:13:03,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 3272 transitions. [2023-12-09 15:13:03,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:03,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 3272 transitions. [2023-12-09 15:13:03,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 121.18518518518519) internal successors, (3272), 27 states have internal predecessors, (3272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:03,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 168.0) internal successors, (4704), 28 states have internal predecessors, (4704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:03,035 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 168.0) internal successors, (4704), 28 states have internal predecessors, (4704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:03,035 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 46 predicate places. [2023-12-09 15:13:03,035 INFO L500 AbstractCegarLoop]: Abstraction has has 199 places, 530 transitions, 2882 flow [2023-12-09 15:13:03,036 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:03,036 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:03,036 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:03,037 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:13:03,037 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:03,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:03,039 INFO L85 PathProgramCache]: Analyzing trace with hash -405696268, now seen corresponding path program 3 times [2023-12-09 15:13:03,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:03,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100281591] [2023-12-09 15:13:03,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:03,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:03,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:03,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:03,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100281591] [2023-12-09 15:13:03,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100281591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:03,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:03,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:03,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122255577] [2023-12-09 15:13:03,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:03,235 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:03,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:03,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:03,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:03,239 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 168 [2023-12-09 15:13:03,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 530 transitions, 2882 flow. Second operand has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:03,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:03,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 168 [2023-12-09 15:13:03,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:03,647 INFO L124 PetriNetUnfolderBase]: 276/1816 cut-off events. [2023-12-09 15:13:03,647 INFO L125 PetriNetUnfolderBase]: For 1067/1697 co-relation queries the response was YES. [2023-12-09 15:13:03,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4861 conditions, 1816 events. 276/1816 cut-off events. For 1067/1697 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 13891 event pairs, 14 based on Foata normal form. 62/1744 useless extension candidates. Maximal degree in co-relation 3048. Up to 456 conditions per place. [2023-12-09 15:13:03,660 INFO L140 encePairwiseOnDemand]: 145/168 looper letters, 443 selfloop transitions, 63 changer transitions 152/761 dead transitions. [2023-12-09 15:13:03,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 761 transitions, 5641 flow [2023-12-09 15:13:03,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:13:03,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:13:03,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2088 transitions. [2023-12-09 15:13:03,664 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7310924369747899 [2023-12-09 15:13:03,664 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2088 transitions. [2023-12-09 15:13:03,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2088 transitions. [2023-12-09 15:13:03,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:03,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2088 transitions. [2023-12-09 15:13:03,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 122.82352941176471) internal successors, (2088), 17 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:03,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:03,672 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:03,673 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 62 predicate places. [2023-12-09 15:13:03,673 INFO L500 AbstractCegarLoop]: Abstraction has has 215 places, 761 transitions, 5641 flow [2023-12-09 15:13:03,674 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:03,674 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:03,675 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:03,675 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:13:03,675 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:03,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:03,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1541514874, now seen corresponding path program 4 times [2023-12-09 15:13:03,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:03,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318152461] [2023-12-09 15:13:03,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:03,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:03,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:03,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:03,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318152461] [2023-12-09 15:13:03,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318152461] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:03,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:03,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:03,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816600488] [2023-12-09 15:13:03,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:03,905 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:03,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:03,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:03,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:03,908 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 168 [2023-12-09 15:13:03,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 761 transitions, 5641 flow. Second operand has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:03,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:03,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 168 [2023-12-09 15:13:03,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:04,334 INFO L124 PetriNetUnfolderBase]: 275/1739 cut-off events. [2023-12-09 15:13:04,334 INFO L125 PetriNetUnfolderBase]: For 1775/3128 co-relation queries the response was YES. [2023-12-09 15:13:04,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5751 conditions, 1739 events. 275/1739 cut-off events. For 1775/3128 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 13151 event pairs, 18 based on Foata normal form. 51/1665 useless extension candidates. Maximal degree in co-relation 3289. Up to 478 conditions per place. [2023-12-09 15:13:04,345 INFO L140 encePairwiseOnDemand]: 148/168 looper letters, 444 selfloop transitions, 42 changer transitions 179/768 dead transitions. [2023-12-09 15:13:04,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 768 transitions, 7036 flow [2023-12-09 15:13:04,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:13:04,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:13:04,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2192 transitions. [2023-12-09 15:13:04,349 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7248677248677249 [2023-12-09 15:13:04,349 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2192 transitions. [2023-12-09 15:13:04,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2192 transitions. [2023-12-09 15:13:04,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:04,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2192 transitions. [2023-12-09 15:13:04,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 121.77777777777777) internal successors, (2192), 18 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:04,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 168.0) internal successors, (3192), 19 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:04,358 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 168.0) internal successors, (3192), 19 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:04,359 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 79 predicate places. [2023-12-09 15:13:04,360 INFO L500 AbstractCegarLoop]: Abstraction has has 232 places, 768 transitions, 7036 flow [2023-12-09 15:13:04,360 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:04,361 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:04,361 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:04,362 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:13:04,362 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:04,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:04,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1389050382, now seen corresponding path program 5 times [2023-12-09 15:13:04,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:04,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465090704] [2023-12-09 15:13:04,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:04,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:04,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:04,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:04,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465090704] [2023-12-09 15:13:04,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465090704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:04,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:04,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:04,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363667308] [2023-12-09 15:13:04,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:04,583 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:04,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:04,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:04,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:04,585 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 168 [2023-12-09 15:13:04,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 768 transitions, 7036 flow. Second operand has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:04,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:04,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 168 [2023-12-09 15:13:04,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:05,017 INFO L124 PetriNetUnfolderBase]: 274/1810 cut-off events. [2023-12-09 15:13:05,017 INFO L125 PetriNetUnfolderBase]: For 2944/5098 co-relation queries the response was YES. [2023-12-09 15:13:05,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6914 conditions, 1810 events. 274/1810 cut-off events. For 2944/5098 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 14031 event pairs, 13 based on Foata normal form. 42/1726 useless extension candidates. Maximal degree in co-relation 3872. Up to 497 conditions per place. [2023-12-09 15:13:05,027 INFO L140 encePairwiseOnDemand]: 149/168 looper letters, 441 selfloop transitions, 38 changer transitions 209/791 dead transitions. [2023-12-09 15:13:05,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 791 transitions, 8648 flow [2023-12-09 15:13:05,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:13:05,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:13:05,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2075 transitions. [2023-12-09 15:13:05,031 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7265406162464986 [2023-12-09 15:13:05,031 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2075 transitions. [2023-12-09 15:13:05,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2075 transitions. [2023-12-09 15:13:05,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:05,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2075 transitions. [2023-12-09 15:13:05,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 122.05882352941177) internal successors, (2075), 17 states have internal predecessors, (2075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:05,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:05,038 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:05,039 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 95 predicate places. [2023-12-09 15:13:05,039 INFO L500 AbstractCegarLoop]: Abstraction has has 248 places, 791 transitions, 8648 flow [2023-12-09 15:13:05,040 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:05,040 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:05,040 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:05,040 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:13:05,040 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:05,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:05,040 INFO L85 PathProgramCache]: Analyzing trace with hash 887949172, now seen corresponding path program 6 times [2023-12-09 15:13:05,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:05,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264647867] [2023-12-09 15:13:05,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:05,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:05,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:05,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:05,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264647867] [2023-12-09 15:13:05,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264647867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:05,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:05,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:05,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891908442] [2023-12-09 15:13:05,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:05,247 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:05,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:05,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:05,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:05,249 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 168 [2023-12-09 15:13:05,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 791 transitions, 8648 flow. Second operand has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:05,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:05,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 168 [2023-12-09 15:13:05,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:05,730 INFO L124 PetriNetUnfolderBase]: 276/1864 cut-off events. [2023-12-09 15:13:05,730 INFO L125 PetriNetUnfolderBase]: For 4471/7354 co-relation queries the response was YES. [2023-12-09 15:13:05,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8143 conditions, 1864 events. 276/1864 cut-off events. For 4471/7354 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 14698 event pairs, 13 based on Foata normal form. 62/1798 useless extension candidates. Maximal degree in co-relation 4477. Up to 520 conditions per place. [2023-12-09 15:13:05,741 INFO L140 encePairwiseOnDemand]: 151/168 looper letters, 443 selfloop transitions, 34 changer transitions 239/819 dead transitions. [2023-12-09 15:13:05,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 819 transitions, 10425 flow [2023-12-09 15:13:05,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:13:05,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:13:05,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2054 transitions. [2023-12-09 15:13:05,745 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.719187675070028 [2023-12-09 15:13:05,745 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2054 transitions. [2023-12-09 15:13:05,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2054 transitions. [2023-12-09 15:13:05,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:05,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2054 transitions. [2023-12-09 15:13:05,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 120.82352941176471) internal successors, (2054), 17 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:05,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:05,752 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:05,752 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 111 predicate places. [2023-12-09 15:13:05,752 INFO L500 AbstractCegarLoop]: Abstraction has has 264 places, 819 transitions, 10425 flow [2023-12-09 15:13:05,753 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:05,753 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:05,753 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:05,753 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:13:05,753 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:05,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:05,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1578635620, now seen corresponding path program 7 times [2023-12-09 15:13:05,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:05,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071619578] [2023-12-09 15:13:05,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:05,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:05,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:05,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:05,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071619578] [2023-12-09 15:13:05,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071619578] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:05,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:05,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:05,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154963904] [2023-12-09 15:13:05,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:05,908 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:05,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:05,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:05,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:05,909 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 168 [2023-12-09 15:13:05,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 819 transitions, 10425 flow. Second operand has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:05,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:05,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 168 [2023-12-09 15:13:05,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:06,446 INFO L124 PetriNetUnfolderBase]: 275/1852 cut-off events. [2023-12-09 15:13:06,446 INFO L125 PetriNetUnfolderBase]: For 5444/8227 co-relation queries the response was YES. [2023-12-09 15:13:06,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9307 conditions, 1852 events. 275/1852 cut-off events. For 5444/8227 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 14579 event pairs, 19 based on Foata normal form. 67/1788 useless extension candidates. Maximal degree in co-relation 4997. Up to 538 conditions per place. [2023-12-09 15:13:06,456 INFO L140 encePairwiseOnDemand]: 150/168 looper letters, 437 selfloop transitions, 28 changer transitions 272/840 dead transitions. [2023-12-09 15:13:06,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 840 transitions, 12199 flow [2023-12-09 15:13:06,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:13:06,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:13:06,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2304 transitions. [2023-12-09 15:13:06,459 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7218045112781954 [2023-12-09 15:13:06,459 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2304 transitions. [2023-12-09 15:13:06,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2304 transitions. [2023-12-09 15:13:06,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:06,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2304 transitions. [2023-12-09 15:13:06,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 121.26315789473684) internal successors, (2304), 19 states have internal predecessors, (2304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:06,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 168.0) internal successors, (3360), 20 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:06,466 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 168.0) internal successors, (3360), 20 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:06,467 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 129 predicate places. [2023-12-09 15:13:06,467 INFO L500 AbstractCegarLoop]: Abstraction has has 282 places, 840 transitions, 12199 flow [2023-12-09 15:13:06,467 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:06,468 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:06,468 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:06,468 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:13:06,468 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:06,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:06,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1224898980, now seen corresponding path program 8 times [2023-12-09 15:13:06,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:06,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125160891] [2023-12-09 15:13:06,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:06,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:06,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:06,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:06,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125160891] [2023-12-09 15:13:06,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125160891] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:06,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:06,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:06,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232499568] [2023-12-09 15:13:06,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:06,632 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:06,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:06,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:06,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:06,633 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 168 [2023-12-09 15:13:06,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 840 transitions, 12199 flow. Second operand has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:06,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:06,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 168 [2023-12-09 15:13:06,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:07,148 INFO L124 PetriNetUnfolderBase]: 281/1995 cut-off events. [2023-12-09 15:13:07,148 INFO L125 PetriNetUnfolderBase]: For 7989/11512 co-relation queries the response was YES. [2023-12-09 15:13:07,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11027 conditions, 1995 events. 281/1995 cut-off events. For 7989/11512 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 16333 event pairs, 16 based on Foata normal form. 43/1901 useless extension candidates. Maximal degree in co-relation 5703. Up to 591 conditions per place. [2023-12-09 15:13:07,162 INFO L140 encePairwiseOnDemand]: 150/168 looper letters, 454 selfloop transitions, 26 changer transitions 310/893 dead transitions. [2023-12-09 15:13:07,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 893 transitions, 14648 flow [2023-12-09 15:13:07,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:13:07,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:13:07,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2439 transitions. [2023-12-09 15:13:07,164 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7258928571428571 [2023-12-09 15:13:07,164 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2439 transitions. [2023-12-09 15:13:07,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2439 transitions. [2023-12-09 15:13:07,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:07,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2439 transitions. [2023-12-09 15:13:07,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 121.95) internal successors, (2439), 20 states have internal predecessors, (2439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:07,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 168.0) internal successors, (3528), 21 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:07,170 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 168.0) internal successors, (3528), 21 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:07,171 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 148 predicate places. [2023-12-09 15:13:07,171 INFO L500 AbstractCegarLoop]: Abstraction has has 301 places, 893 transitions, 14648 flow [2023-12-09 15:13:07,171 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:07,171 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:07,171 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:07,172 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 15:13:07,172 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:07,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:07,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1704010768, now seen corresponding path program 9 times [2023-12-09 15:13:07,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:07,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848722195] [2023-12-09 15:13:07,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:07,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:07,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:07,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:07,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848722195] [2023-12-09 15:13:07,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848722195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:07,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:07,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:07,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298302061] [2023-12-09 15:13:07,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:07,361 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:07,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:07,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:07,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:07,362 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 168 [2023-12-09 15:13:07,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 893 transitions, 14648 flow. Second operand has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:07,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:07,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 168 [2023-12-09 15:13:07,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:07,819 INFO L124 PetriNetUnfolderBase]: 282/2020 cut-off events. [2023-12-09 15:13:07,819 INFO L125 PetriNetUnfolderBase]: For 10404/14865 co-relation queries the response was YES. [2023-12-09 15:13:07,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12402 conditions, 2020 events. 282/2020 cut-off events. For 10404/14865 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 16624 event pairs, 13 based on Foata normal form. 58/1941 useless extension candidates. Maximal degree in co-relation 6289. Up to 612 conditions per place. [2023-12-09 15:13:07,831 INFO L140 encePairwiseOnDemand]: 149/168 looper letters, 453 selfloop transitions, 22 changer transitions 340/918 dead transitions. [2023-12-09 15:13:07,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 918 transitions, 16737 flow [2023-12-09 15:13:07,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:13:07,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:13:07,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2077 transitions. [2023-12-09 15:13:07,834 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7272408963585434 [2023-12-09 15:13:07,834 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2077 transitions. [2023-12-09 15:13:07,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2077 transitions. [2023-12-09 15:13:07,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:07,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2077 transitions. [2023-12-09 15:13:07,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 122.17647058823529) internal successors, (2077), 17 states have internal predecessors, (2077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:07,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:07,839 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:07,839 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 164 predicate places. [2023-12-09 15:13:07,840 INFO L500 AbstractCegarLoop]: Abstraction has has 317 places, 918 transitions, 16737 flow [2023-12-09 15:13:07,840 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:07,840 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:07,840 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:07,840 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 15:13:07,840 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:07,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:07,841 INFO L85 PathProgramCache]: Analyzing trace with hash 2088143042, now seen corresponding path program 10 times [2023-12-09 15:13:07,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:07,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198424645] [2023-12-09 15:13:07,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:07,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:07,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:07,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:07,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198424645] [2023-12-09 15:13:07,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198424645] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:07,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:07,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:07,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762326891] [2023-12-09 15:13:07,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:07,983 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:07,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:07,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:07,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:07,985 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 168 [2023-12-09 15:13:07,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 918 transitions, 16737 flow. Second operand has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:07,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:07,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 168 [2023-12-09 15:13:07,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:08,559 INFO L124 PetriNetUnfolderBase]: 284/2064 cut-off events. [2023-12-09 15:13:08,560 INFO L125 PetriNetUnfolderBase]: For 13097/17563 co-relation queries the response was YES. [2023-12-09 15:13:08,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13878 conditions, 2064 events. 284/2064 cut-off events. For 13097/17563 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 17140 event pairs, 14 based on Foata normal form. 76/1999 useless extension candidates. Maximal degree in co-relation 6940. Up to 635 conditions per place. [2023-12-09 15:13:08,570 INFO L140 encePairwiseOnDemand]: 149/168 looper letters, 448 selfloop transitions, 23 changer transitions 372/946 dead transitions. [2023-12-09 15:13:08,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 946 transitions, 18992 flow [2023-12-09 15:13:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 15:13:08,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 15:13:08,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2553 transitions. [2023-12-09 15:13:08,573 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7236394557823129 [2023-12-09 15:13:08,573 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2553 transitions. [2023-12-09 15:13:08,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2553 transitions. [2023-12-09 15:13:08,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:08,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2553 transitions. [2023-12-09 15:13:08,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 121.57142857142857) internal successors, (2553), 21 states have internal predecessors, (2553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:08,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 168.0) internal successors, (3696), 22 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:08,580 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 168.0) internal successors, (3696), 22 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:08,580 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 184 predicate places. [2023-12-09 15:13:08,581 INFO L500 AbstractCegarLoop]: Abstraction has has 337 places, 946 transitions, 18992 flow [2023-12-09 15:13:08,581 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:08,581 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:08,581 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:08,581 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-09 15:13:08,581 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:08,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:08,582 INFO L85 PathProgramCache]: Analyzing trace with hash 304765924, now seen corresponding path program 11 times [2023-12-09 15:13:08,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:08,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318862436] [2023-12-09 15:13:08,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:08,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:08,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:08,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:08,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318862436] [2023-12-09 15:13:08,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318862436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:08,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:08,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:08,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780934687] [2023-12-09 15:13:08,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:08,715 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:08,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:08,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:08,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:08,717 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 168 [2023-12-09 15:13:08,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 946 transitions, 18992 flow. Second operand has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:08,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:08,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 168 [2023-12-09 15:13:08,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:09,396 INFO L124 PetriNetUnfolderBase]: 284/2052 cut-off events. [2023-12-09 15:13:09,396 INFO L125 PetriNetUnfolderBase]: For 15567/20616 co-relation queries the response was YES. [2023-12-09 15:13:09,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15001 conditions, 2052 events. 284/2052 cut-off events. For 15567/20616 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 17026 event pairs, 15 based on Foata normal form. 53/1966 useless extension candidates. Maximal degree in co-relation 7502. Up to 632 conditions per place. [2023-12-09 15:13:09,407 INFO L140 encePairwiseOnDemand]: 149/168 looper letters, 427 selfloop transitions, 12 changer transitions 401/943 dead transitions. [2023-12-09 15:13:09,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 943 transitions, 20606 flow [2023-12-09 15:13:09,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:13:09,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:13:09,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2190 transitions. [2023-12-09 15:13:09,412 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7242063492063492 [2023-12-09 15:13:09,412 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2190 transitions. [2023-12-09 15:13:09,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2190 transitions. [2023-12-09 15:13:09,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:09,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2190 transitions. [2023-12-09 15:13:09,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 121.66666666666667) internal successors, (2190), 18 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:09,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 168.0) internal successors, (3192), 19 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:09,419 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 168.0) internal successors, (3192), 19 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:09,420 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 201 predicate places. [2023-12-09 15:13:09,420 INFO L500 AbstractCegarLoop]: Abstraction has has 354 places, 943 transitions, 20606 flow [2023-12-09 15:13:09,420 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 116.6) internal successors, (1166), 10 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:09,420 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:09,420 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:09,420 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-09 15:13:09,421 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:09,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:09,421 INFO L85 PathProgramCache]: Analyzing trace with hash -65271301, now seen corresponding path program 1 times [2023-12-09 15:13:09,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:09,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400233951] [2023-12-09 15:13:09,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:09,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:09,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:09,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:09,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400233951] [2023-12-09 15:13:09,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400233951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:09,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:09,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:09,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805058592] [2023-12-09 15:13:09,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:09,584 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:09,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:09,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:09,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:09,586 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:09,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 943 transitions, 20606 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:09,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:09,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:09,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:10,228 INFO L124 PetriNetUnfolderBase]: 413/2467 cut-off events. [2023-12-09 15:13:10,228 INFO L125 PetriNetUnfolderBase]: For 26060/31301 co-relation queries the response was YES. [2023-12-09 15:13:10,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18581 conditions, 2467 events. 413/2467 cut-off events. For 26060/31301 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 21136 event pairs, 54 based on Foata normal form. 39/2345 useless extension candidates. Maximal degree in co-relation 9671. Up to 759 conditions per place. [2023-12-09 15:13:10,245 INFO L140 encePairwiseOnDemand]: 155/168 looper letters, 402 selfloop transitions, 15 changer transitions 445/992 dead transitions. [2023-12-09 15:13:10,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 992 transitions, 23233 flow [2023-12-09 15:13:10,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:13:10,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:13:10,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2454 transitions. [2023-12-09 15:13:10,247 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7303571428571428 [2023-12-09 15:13:10,247 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2454 transitions. [2023-12-09 15:13:10,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2454 transitions. [2023-12-09 15:13:10,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:10,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2454 transitions. [2023-12-09 15:13:10,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 122.7) internal successors, (2454), 20 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:10,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 168.0) internal successors, (3528), 21 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:10,254 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 168.0) internal successors, (3528), 21 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:10,255 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 220 predicate places. [2023-12-09 15:13:10,255 INFO L500 AbstractCegarLoop]: Abstraction has has 373 places, 992 transitions, 23233 flow [2023-12-09 15:13:10,255 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:10,255 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:10,255 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:10,255 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-09 15:13:10,256 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:10,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:10,256 INFO L85 PathProgramCache]: Analyzing trace with hash 84166379, now seen corresponding path program 2 times [2023-12-09 15:13:10,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:10,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254723964] [2023-12-09 15:13:10,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:10,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:10,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:10,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:10,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254723964] [2023-12-09 15:13:10,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254723964] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:10,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:10,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:10,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596082688] [2023-12-09 15:13:10,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:10,388 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:10,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:10,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:10,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:10,390 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:10,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 992 transitions, 23233 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:10,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:10,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:10,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:10,989 INFO L124 PetriNetUnfolderBase]: 313/2035 cut-off events. [2023-12-09 15:13:10,989 INFO L125 PetriNetUnfolderBase]: For 22673/26050 co-relation queries the response was YES. [2023-12-09 15:13:10,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16283 conditions, 2035 events. 313/2035 cut-off events. For 22673/26050 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 16755 event pairs, 22 based on Foata normal form. 26/1949 useless extension candidates. Maximal degree in co-relation 9731. Up to 641 conditions per place. [2023-12-09 15:13:11,001 INFO L140 encePairwiseOnDemand]: 152/168 looper letters, 302 selfloop transitions, 34 changer transitions 464/926 dead transitions. [2023-12-09 15:13:11,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 926 transitions, 22909 flow [2023-12-09 15:13:11,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:13:11,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:13:11,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1866 transitions. [2023-12-09 15:13:11,004 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7404761904761905 [2023-12-09 15:13:11,005 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1866 transitions. [2023-12-09 15:13:11,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1866 transitions. [2023-12-09 15:13:11,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:11,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1866 transitions. [2023-12-09 15:13:11,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 124.4) internal successors, (1866), 15 states have internal predecessors, (1866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:11,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 168.0) internal successors, (2688), 16 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:11,010 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 168.0) internal successors, (2688), 16 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:11,011 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 232 predicate places. [2023-12-09 15:13:11,011 INFO L500 AbstractCegarLoop]: Abstraction has has 385 places, 926 transitions, 22909 flow [2023-12-09 15:13:11,011 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:11,011 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:11,011 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:11,012 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-09 15:13:11,012 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:11,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:11,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1625503643, now seen corresponding path program 3 times [2023-12-09 15:13:11,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:11,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224668308] [2023-12-09 15:13:11,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:11,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:11,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:11,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:11,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224668308] [2023-12-09 15:13:11,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224668308] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:11,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:11,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:11,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297913633] [2023-12-09 15:13:11,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:11,150 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:11,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:11,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:11,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:11,152 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:11,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 926 transitions, 22909 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:11,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:11,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:11,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:11,790 INFO L124 PetriNetUnfolderBase]: 354/2348 cut-off events. [2023-12-09 15:13:11,790 INFO L125 PetriNetUnfolderBase]: For 29432/34033 co-relation queries the response was YES. [2023-12-09 15:13:11,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20265 conditions, 2348 events. 354/2348 cut-off events. For 29432/34033 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 20477 event pairs, 20 based on Foata normal form. 29/2257 useless extension candidates. Maximal degree in co-relation 9897. Up to 917 conditions per place. [2023-12-09 15:13:11,807 INFO L140 encePairwiseOnDemand]: 150/168 looper letters, 376 selfloop transitions, 48 changer transitions 530/1080 dead transitions. [2023-12-09 15:13:11,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 1080 transitions, 28967 flow [2023-12-09 15:13:11,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:13:11,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:13:11,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2358 transitions. [2023-12-09 15:13:11,815 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7387218045112782 [2023-12-09 15:13:11,815 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2358 transitions. [2023-12-09 15:13:11,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2358 transitions. [2023-12-09 15:13:11,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:11,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2358 transitions. [2023-12-09 15:13:11,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 124.10526315789474) internal successors, (2358), 19 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:11,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 168.0) internal successors, (3360), 20 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:11,825 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 168.0) internal successors, (3360), 20 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:11,826 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 250 predicate places. [2023-12-09 15:13:11,826 INFO L500 AbstractCegarLoop]: Abstraction has has 403 places, 1080 transitions, 28967 flow [2023-12-09 15:13:11,826 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:11,826 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:11,826 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:11,827 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-09 15:13:11,827 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:11,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:11,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1682199211, now seen corresponding path program 4 times [2023-12-09 15:13:11,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:11,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435867266] [2023-12-09 15:13:11,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:11,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:11,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:11,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:11,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435867266] [2023-12-09 15:13:11,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435867266] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:11,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:11,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:11,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350906632] [2023-12-09 15:13:11,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:11,964 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:11,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:11,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:11,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:11,965 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:11,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 1080 transitions, 28967 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:11,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:11,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:11,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:12,616 INFO L124 PetriNetUnfolderBase]: 357/2373 cut-off events. [2023-12-09 15:13:12,616 INFO L125 PetriNetUnfolderBase]: For 35190/41384 co-relation queries the response was YES. [2023-12-09 15:13:12,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21951 conditions, 2373 events. 357/2373 cut-off events. For 35190/41384 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 20843 event pairs, 19 based on Foata normal form. 23/2269 useless extension candidates. Maximal degree in co-relation 11304. Up to 1137 conditions per place. [2023-12-09 15:13:12,633 INFO L140 encePairwiseOnDemand]: 155/168 looper letters, 391 selfloop transitions, 29 changer transitions 559/1105 dead transitions. [2023-12-09 15:13:12,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 1105 transitions, 31635 flow [2023-12-09 15:13:12,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:13:12,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:13:12,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1950 transitions. [2023-12-09 15:13:12,636 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7254464285714286 [2023-12-09 15:13:12,636 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1950 transitions. [2023-12-09 15:13:12,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1950 transitions. [2023-12-09 15:13:12,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:12,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1950 transitions. [2023-12-09 15:13:12,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 121.875) internal successors, (1950), 16 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:12,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 168.0) internal successors, (2856), 17 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:12,641 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 168.0) internal successors, (2856), 17 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:12,641 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 265 predicate places. [2023-12-09 15:13:12,641 INFO L500 AbstractCegarLoop]: Abstraction has has 418 places, 1105 transitions, 31635 flow [2023-12-09 15:13:12,641 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:12,642 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:12,642 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:12,642 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-09 15:13:12,642 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:12,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:12,642 INFO L85 PathProgramCache]: Analyzing trace with hash -593639525, now seen corresponding path program 5 times [2023-12-09 15:13:12,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:12,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733406266] [2023-12-09 15:13:12,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:12,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:12,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:12,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:12,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733406266] [2023-12-09 15:13:12,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733406266] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:12,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:12,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:12,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180046664] [2023-12-09 15:13:12,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:12,756 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:12,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:12,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:12,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:12,758 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:12,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 1105 transitions, 31635 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:12,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:12,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:12,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:13,552 INFO L124 PetriNetUnfolderBase]: 362/2476 cut-off events. [2023-12-09 15:13:13,552 INFO L125 PetriNetUnfolderBase]: For 39740/46333 co-relation queries the response was YES. [2023-12-09 15:13:13,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23844 conditions, 2476 events. 362/2476 cut-off events. For 39740/46333 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 22188 event pairs, 20 based on Foata normal form. 27/2381 useless extension candidates. Maximal degree in co-relation 11498. Up to 1163 conditions per place. [2023-12-09 15:13:13,565 INFO L140 encePairwiseOnDemand]: 155/168 looper letters, 391 selfloop transitions, 27 changer transitions 587/1131 dead transitions. [2023-12-09 15:13:13,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 1131 transitions, 34440 flow [2023-12-09 15:13:13,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:13:13,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:13:13,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1951 transitions. [2023-12-09 15:13:13,568 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7258184523809523 [2023-12-09 15:13:13,568 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1951 transitions. [2023-12-09 15:13:13,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1951 transitions. [2023-12-09 15:13:13,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:13,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1951 transitions. [2023-12-09 15:13:13,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 121.9375) internal successors, (1951), 16 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:13,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 168.0) internal successors, (2856), 17 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:13,574 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 168.0) internal successors, (2856), 17 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:13,574 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 280 predicate places. [2023-12-09 15:13:13,576 INFO L500 AbstractCegarLoop]: Abstraction has has 433 places, 1131 transitions, 34440 flow [2023-12-09 15:13:13,576 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:13,576 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:13,576 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:13,577 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-09 15:13:13,577 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:13,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:13,577 INFO L85 PathProgramCache]: Analyzing trace with hash 958346413, now seen corresponding path program 6 times [2023-12-09 15:13:13,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:13,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656458980] [2023-12-09 15:13:13,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:13,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:13,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:13,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:13,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656458980] [2023-12-09 15:13:13,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656458980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:13,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:13,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:13,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809295294] [2023-12-09 15:13:13,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:13,708 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:13,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:13,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:13,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:13,710 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:13,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 1131 transitions, 34440 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:13,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:13,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:13,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:14,425 INFO L124 PetriNetUnfolderBase]: 362/2422 cut-off events. [2023-12-09 15:13:14,425 INFO L125 PetriNetUnfolderBase]: For 45860/54359 co-relation queries the response was YES. [2023-12-09 15:13:14,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25009 conditions, 2422 events. 362/2422 cut-off events. For 45860/54359 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 21526 event pairs, 17 based on Foata normal form. 33/2333 useless extension candidates. Maximal degree in co-relation 12136. Up to 1154 conditions per place. [2023-12-09 15:13:14,442 INFO L140 encePairwiseOnDemand]: 155/168 looper letters, 362 selfloop transitions, 16 changer transitions 620/1124 dead transitions. [2023-12-09 15:13:14,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 1124 transitions, 36199 flow [2023-12-09 15:13:14,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:13:14,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:13:14,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2190 transitions. [2023-12-09 15:13:14,445 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7242063492063492 [2023-12-09 15:13:14,445 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2190 transitions. [2023-12-09 15:13:14,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2190 transitions. [2023-12-09 15:13:14,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:14,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2190 transitions. [2023-12-09 15:13:14,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 121.66666666666667) internal successors, (2190), 18 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:14,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 168.0) internal successors, (3192), 19 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:14,451 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 168.0) internal successors, (3192), 19 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:14,452 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 297 predicate places. [2023-12-09 15:13:14,452 INFO L500 AbstractCegarLoop]: Abstraction has has 450 places, 1124 transitions, 36199 flow [2023-12-09 15:13:14,452 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:14,452 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:14,452 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:14,452 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-09 15:13:14,452 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:14,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:14,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1053552763, now seen corresponding path program 7 times [2023-12-09 15:13:14,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:14,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590745260] [2023-12-09 15:13:14,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:14,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:14,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:14,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:14,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590745260] [2023-12-09 15:13:14,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590745260] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:14,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:14,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:14,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311828151] [2023-12-09 15:13:14,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:14,564 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:14,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:14,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:14,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:14,566 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:14,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 1124 transitions, 36199 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:14,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:14,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:14,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:15,547 INFO L124 PetriNetUnfolderBase]: 367/2466 cut-off events. [2023-12-09 15:13:15,547 INFO L125 PetriNetUnfolderBase]: For 52551/61541 co-relation queries the response was YES. [2023-12-09 15:13:15,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26909 conditions, 2466 events. 367/2466 cut-off events. For 52551/61541 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 21952 event pairs, 21 based on Foata normal form. 122/2465 useless extension candidates. Maximal degree in co-relation 13004. Up to 1176 conditions per place. [2023-12-09 15:13:15,566 INFO L140 encePairwiseOnDemand]: 154/168 looper letters, 347 selfloop transitions, 34 changer transitions 655/1161 dead transitions. [2023-12-09 15:13:15,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 1161 transitions, 39554 flow [2023-12-09 15:13:15,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:13:15,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:13:15,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2476 transitions. [2023-12-09 15:13:15,569 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.736904761904762 [2023-12-09 15:13:15,569 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2476 transitions. [2023-12-09 15:13:15,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2476 transitions. [2023-12-09 15:13:15,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:15,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2476 transitions. [2023-12-09 15:13:15,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 123.8) internal successors, (2476), 20 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:15,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 168.0) internal successors, (3528), 21 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:15,578 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 168.0) internal successors, (3528), 21 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:15,578 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 316 predicate places. [2023-12-09 15:13:15,578 INFO L500 AbstractCegarLoop]: Abstraction has has 469 places, 1161 transitions, 39554 flow [2023-12-09 15:13:15,579 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:15,579 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:15,579 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:15,579 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-09 15:13:15,579 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:15,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:15,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1834002945, now seen corresponding path program 8 times [2023-12-09 15:13:15,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:15,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881090199] [2023-12-09 15:13:15,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:15,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:15,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:15,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:15,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881090199] [2023-12-09 15:13:15,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881090199] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:15,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:15,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:15,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021805240] [2023-12-09 15:13:15,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:15,699 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:15,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:15,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:15,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:15,701 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:15,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 1161 transitions, 39554 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:15,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:15,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:15,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:16,709 INFO L124 PetriNetUnfolderBase]: 369/2490 cut-off events. [2023-12-09 15:13:16,710 INFO L125 PetriNetUnfolderBase]: For 56264/63635 co-relation queries the response was YES. [2023-12-09 15:13:16,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28713 conditions, 2490 events. 369/2490 cut-off events. For 56264/63635 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 22331 event pairs, 16 based on Foata normal form. 91/2459 useless extension candidates. Maximal degree in co-relation 15728. Up to 1194 conditions per place. [2023-12-09 15:13:16,728 INFO L140 encePairwiseOnDemand]: 154/168 looper letters, 348 selfloop transitions, 24 changer transitions 685/1182 dead transitions. [2023-12-09 15:13:16,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 1182 transitions, 42399 flow [2023-12-09 15:13:16,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:13:16,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:13:16,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2214 transitions. [2023-12-09 15:13:16,731 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7321428571428571 [2023-12-09 15:13:16,731 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2214 transitions. [2023-12-09 15:13:16,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2214 transitions. [2023-12-09 15:13:16,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:16,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2214 transitions. [2023-12-09 15:13:16,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 123.0) internal successors, (2214), 18 states have internal predecessors, (2214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:16,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 168.0) internal successors, (3192), 19 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:16,736 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 168.0) internal successors, (3192), 19 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:16,737 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 333 predicate places. [2023-12-09 15:13:16,737 INFO L500 AbstractCegarLoop]: Abstraction has has 486 places, 1182 transitions, 42399 flow [2023-12-09 15:13:16,737 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:16,737 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:16,737 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:16,737 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-09 15:13:16,737 INFO L425 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:16,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:16,738 INFO L85 PathProgramCache]: Analyzing trace with hash 725735485, now seen corresponding path program 9 times [2023-12-09 15:13:16,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:16,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798063351] [2023-12-09 15:13:16,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:16,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:16,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:16,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:16,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798063351] [2023-12-09 15:13:16,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798063351] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:16,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:16,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:16,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909607179] [2023-12-09 15:13:16,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:16,844 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:16,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:16,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:16,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:16,845 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:16,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 1182 transitions, 42399 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:16,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:16,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:16,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:17,827 INFO L124 PetriNetUnfolderBase]: 384/2559 cut-off events. [2023-12-09 15:13:17,827 INFO L125 PetriNetUnfolderBase]: For 65918/75721 co-relation queries the response was YES. [2023-12-09 15:13:17,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31158 conditions, 2559 events. 384/2559 cut-off events. For 65918/75721 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 23223 event pairs, 20 based on Foata normal form. 62/2495 useless extension candidates. Maximal degree in co-relation 15108. Up to 1228 conditions per place. [2023-12-09 15:13:17,846 INFO L140 encePairwiseOnDemand]: 154/168 looper letters, 362 selfloop transitions, 29 changer transitions 712/1228 dead transitions. [2023-12-09 15:13:17,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 1228 transitions, 46365 flow [2023-12-09 15:13:17,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:13:17,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:13:17,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1981 transitions. [2023-12-09 15:13:17,848 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7369791666666666 [2023-12-09 15:13:17,848 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1981 transitions. [2023-12-09 15:13:17,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1981 transitions. [2023-12-09 15:13:17,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:17,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1981 transitions. [2023-12-09 15:13:17,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 123.8125) internal successors, (1981), 16 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:17,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 168.0) internal successors, (2856), 17 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:17,853 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 168.0) internal successors, (2856), 17 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:17,853 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 348 predicate places. [2023-12-09 15:13:17,853 INFO L500 AbstractCegarLoop]: Abstraction has has 501 places, 1228 transitions, 46365 flow [2023-12-09 15:13:17,853 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:17,853 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:17,854 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:17,854 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-09 15:13:17,854 INFO L425 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:17,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:17,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1305229095, now seen corresponding path program 10 times [2023-12-09 15:13:17,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:17,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485298318] [2023-12-09 15:13:17,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:17,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:17,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:17,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:17,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485298318] [2023-12-09 15:13:17,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485298318] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:17,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:17,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:17,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421704487] [2023-12-09 15:13:17,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:17,963 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:17,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:17,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:17,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:17,965 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:17,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 1228 transitions, 46365 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:17,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:17,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:17,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:19,008 INFO L124 PetriNetUnfolderBase]: 389/2639 cut-off events. [2023-12-09 15:13:19,008 INFO L125 PetriNetUnfolderBase]: For 73592/83082 co-relation queries the response was YES. [2023-12-09 15:13:19,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33306 conditions, 2639 events. 389/2639 cut-off events. For 73592/83082 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 24235 event pairs, 17 based on Foata normal form. 68/2580 useless extension candidates. Maximal degree in co-relation 15938. Up to 1257 conditions per place. [2023-12-09 15:13:19,029 INFO L140 encePairwiseOnDemand]: 154/168 looper letters, 364 selfloop transitions, 22 changer transitions 743/1254 dead transitions. [2023-12-09 15:13:19,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 1254 transitions, 49660 flow [2023-12-09 15:13:19,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:13:19,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:13:19,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2100 transitions. [2023-12-09 15:13:19,032 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7352941176470589 [2023-12-09 15:13:19,032 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2100 transitions. [2023-12-09 15:13:19,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2100 transitions. [2023-12-09 15:13:19,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:19,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2100 transitions. [2023-12-09 15:13:19,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 123.52941176470588) internal successors, (2100), 17 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:19,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:19,036 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:19,036 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 364 predicate places. [2023-12-09 15:13:19,036 INFO L500 AbstractCegarLoop]: Abstraction has has 517 places, 1254 transitions, 49660 flow [2023-12-09 15:13:19,037 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:19,037 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:19,037 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:19,037 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-09 15:13:19,037 INFO L425 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:19,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:19,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1870221479, now seen corresponding path program 11 times [2023-12-09 15:13:19,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:19,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811515743] [2023-12-09 15:13:19,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:19,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:19,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:19,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:19,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811515743] [2023-12-09 15:13:19,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811515743] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:19,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:19,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:19,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869258841] [2023-12-09 15:13:19,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:19,143 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:19,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:19,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:19,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:19,145 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:19,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 517 places, 1254 transitions, 49660 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:19,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:19,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:19,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:20,171 INFO L124 PetriNetUnfolderBase]: 388/2659 cut-off events. [2023-12-09 15:13:20,172 INFO L125 PetriNetUnfolderBase]: For 80886/91154 co-relation queries the response was YES. [2023-12-09 15:13:20,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35174 conditions, 2659 events. 388/2659 cut-off events. For 80886/91154 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 24464 event pairs, 23 based on Foata normal form. 67/2601 useless extension candidates. Maximal degree in co-relation 19314. Up to 1272 conditions per place. [2023-12-09 15:13:20,193 INFO L140 encePairwiseOnDemand]: 154/168 looper letters, 357 selfloop transitions, 14 changer transitions 773/1269 dead transitions. [2023-12-09 15:13:20,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 1269 transitions, 52604 flow [2023-12-09 15:13:20,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:13:20,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:13:20,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2097 transitions. [2023-12-09 15:13:20,195 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7342436974789915 [2023-12-09 15:13:20,195 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2097 transitions. [2023-12-09 15:13:20,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2097 transitions. [2023-12-09 15:13:20,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:20,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2097 transitions. [2023-12-09 15:13:20,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 123.3529411764706) internal successors, (2097), 17 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:20,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:20,200 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:20,200 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 380 predicate places. [2023-12-09 15:13:20,200 INFO L500 AbstractCegarLoop]: Abstraction has has 533 places, 1269 transitions, 52604 flow [2023-12-09 15:13:20,201 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:20,201 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:20,201 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:20,201 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-09 15:13:20,201 INFO L425 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:20,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:20,201 INFO L85 PathProgramCache]: Analyzing trace with hash -2065858665, now seen corresponding path program 12 times [2023-12-09 15:13:20,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:20,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107971005] [2023-12-09 15:13:20,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:20,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:20,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:20,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:20,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107971005] [2023-12-09 15:13:20,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107971005] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:20,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:20,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:20,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667776192] [2023-12-09 15:13:20,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:20,304 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:20,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:20,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:20,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:20,305 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:20,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 533 places, 1269 transitions, 52604 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:20,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:20,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:20,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:21,555 INFO L124 PetriNetUnfolderBase]: 395/2689 cut-off events. [2023-12-09 15:13:21,556 INFO L125 PetriNetUnfolderBase]: For 91601/104018 co-relation queries the response was YES. [2023-12-09 15:13:21,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37468 conditions, 2689 events. 395/2689 cut-off events. For 91601/104018 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 24938 event pairs, 21 based on Foata normal form. 48/2608 useless extension candidates. Maximal degree in co-relation 17705. Up to 1301 conditions per place. [2023-12-09 15:13:21,660 INFO L140 encePairwiseOnDemand]: 154/168 looper letters, 339 selfloop transitions, 27 changer transitions 810/1299 dead transitions. [2023-12-09 15:13:21,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 551 places, 1299 transitions, 56296 flow [2023-12-09 15:13:21,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:13:21,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:13:21,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2355 transitions. [2023-12-09 15:13:21,662 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7377819548872181 [2023-12-09 15:13:21,662 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2355 transitions. [2023-12-09 15:13:21,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2355 transitions. [2023-12-09 15:13:21,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:21,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2355 transitions. [2023-12-09 15:13:21,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 123.94736842105263) internal successors, (2355), 19 states have internal predecessors, (2355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:21,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 168.0) internal successors, (3360), 20 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:21,667 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 168.0) internal successors, (3360), 20 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:21,667 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 398 predicate places. [2023-12-09 15:13:21,667 INFO L500 AbstractCegarLoop]: Abstraction has has 551 places, 1299 transitions, 56296 flow [2023-12-09 15:13:21,668 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:21,668 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:21,668 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:21,668 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-09 15:13:21,668 INFO L425 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:21,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:21,668 INFO L85 PathProgramCache]: Analyzing trace with hash -460955975, now seen corresponding path program 13 times [2023-12-09 15:13:21,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:21,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615852699] [2023-12-09 15:13:21,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:21,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:21,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:21,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:21,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615852699] [2023-12-09 15:13:21,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615852699] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:21,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:21,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:21,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213468404] [2023-12-09 15:13:21,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:21,773 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:21,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:21,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:21,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:21,775 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:21,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 1299 transitions, 56296 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:21,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:21,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:21,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:22,819 INFO L124 PetriNetUnfolderBase]: 400/2750 cut-off events. [2023-12-09 15:13:22,819 INFO L125 PetriNetUnfolderBase]: For 101508/114715 co-relation queries the response was YES. [2023-12-09 15:13:22,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39764 conditions, 2750 events. 400/2750 cut-off events. For 101508/114715 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 25825 event pairs, 18 based on Foata normal form. 39/2660 useless extension candidates. Maximal degree in co-relation 18713. Up to 1328 conditions per place. [2023-12-09 15:13:22,842 INFO L140 encePairwiseOnDemand]: 154/168 looper letters, 337 selfloop transitions, 24 changer transitions 841/1325 dead transitions. [2023-12-09 15:13:22,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 1325 transitions, 59905 flow [2023-12-09 15:13:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:13:22,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:13:22,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2216 transitions. [2023-12-09 15:13:22,844 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7328042328042328 [2023-12-09 15:13:22,844 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2216 transitions. [2023-12-09 15:13:22,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2216 transitions. [2023-12-09 15:13:22,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:22,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2216 transitions. [2023-12-09 15:13:22,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 123.11111111111111) internal successors, (2216), 18 states have internal predecessors, (2216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:22,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 168.0) internal successors, (3192), 19 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:22,848 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 168.0) internal successors, (3192), 19 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:22,848 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 415 predicate places. [2023-12-09 15:13:22,848 INFO L500 AbstractCegarLoop]: Abstraction has has 568 places, 1325 transitions, 59905 flow [2023-12-09 15:13:22,849 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:22,849 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:22,849 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:22,849 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-09 15:13:22,849 INFO L425 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:22,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:22,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1060743145, now seen corresponding path program 14 times [2023-12-09 15:13:22,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:22,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546379342] [2023-12-09 15:13:22,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:22,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:22,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:22,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:22,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546379342] [2023-12-09 15:13:22,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546379342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:22,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:22,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:22,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198887263] [2023-12-09 15:13:22,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:22,953 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:22,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:22,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:22,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:22,954 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:22,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 1325 transitions, 59905 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:22,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:22,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:22,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:24,346 INFO L124 PetriNetUnfolderBase]: 403/2817 cut-off events. [2023-12-09 15:13:24,346 INFO L125 PetriNetUnfolderBase]: For 111797/125537 co-relation queries the response was YES. [2023-12-09 15:13:24,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41972 conditions, 2817 events. 403/2817 cut-off events. For 111797/125537 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 26644 event pairs, 17 based on Foata normal form. 28/2713 useless extension candidates. Maximal degree in co-relation 19641. Up to 1349 conditions per place. [2023-12-09 15:13:24,369 INFO L140 encePairwiseOnDemand]: 154/168 looper letters, 333 selfloop transitions, 22 changer transitions 869/1347 dead transitions. [2023-12-09 15:13:24,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 583 places, 1347 transitions, 63407 flow [2023-12-09 15:13:24,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:13:24,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:13:24,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1976 transitions. [2023-12-09 15:13:24,371 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7351190476190477 [2023-12-09 15:13:24,372 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1976 transitions. [2023-12-09 15:13:24,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1976 transitions. [2023-12-09 15:13:24,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:24,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1976 transitions. [2023-12-09 15:13:24,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 123.5) internal successors, (1976), 16 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:24,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 168.0) internal successors, (2856), 17 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:24,376 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 168.0) internal successors, (2856), 17 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:24,376 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 430 predicate places. [2023-12-09 15:13:24,376 INFO L500 AbstractCegarLoop]: Abstraction has has 583 places, 1347 transitions, 63407 flow [2023-12-09 15:13:24,376 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:24,377 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:24,377 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:24,377 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-09 15:13:24,377 INFO L425 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:24,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:24,377 INFO L85 PathProgramCache]: Analyzing trace with hash 967929491, now seen corresponding path program 15 times [2023-12-09 15:13:24,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:24,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222737938] [2023-12-09 15:13:24,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:24,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:24,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:24,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:24,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222737938] [2023-12-09 15:13:24,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222737938] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:24,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:24,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:24,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432189663] [2023-12-09 15:13:24,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:24,488 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:24,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:24,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:24,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:24,489 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:24,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 1347 transitions, 63407 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:24,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:24,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:24,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:25,916 INFO L124 PetriNetUnfolderBase]: 403/2827 cut-off events. [2023-12-09 15:13:25,917 INFO L125 PetriNetUnfolderBase]: For 122117/137017 co-relation queries the response was YES. [2023-12-09 15:13:25,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43329 conditions, 2827 events. 403/2827 cut-off events. For 122117/137017 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 26815 event pairs, 17 based on Foata normal form. 36/2733 useless extension candidates. Maximal degree in co-relation 20403. Up to 1339 conditions per place. [2023-12-09 15:13:25,942 INFO L140 encePairwiseOnDemand]: 154/168 looper letters, 305 selfloop transitions, 11 changer transitions 903/1337 dead transitions. [2023-12-09 15:13:25,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 598 places, 1337 transitions, 65301 flow [2023-12-09 15:13:25,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:13:25,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:13:25,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1977 transitions. [2023-12-09 15:13:25,944 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7354910714285714 [2023-12-09 15:13:25,944 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1977 transitions. [2023-12-09 15:13:25,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1977 transitions. [2023-12-09 15:13:25,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:25,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1977 transitions. [2023-12-09 15:13:25,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 123.5625) internal successors, (1977), 16 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:25,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 168.0) internal successors, (2856), 17 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:25,948 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 168.0) internal successors, (2856), 17 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:25,948 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 445 predicate places. [2023-12-09 15:13:25,948 INFO L500 AbstractCegarLoop]: Abstraction has has 598 places, 1337 transitions, 65301 flow [2023-12-09 15:13:25,949 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:25,949 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:25,949 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:25,949 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-09 15:13:25,949 INFO L425 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:25,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:25,949 INFO L85 PathProgramCache]: Analyzing trace with hash -492244983, now seen corresponding path program 1 times [2023-12-09 15:13:25,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:25,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016710757] [2023-12-09 15:13:25,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:25,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:26,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:26,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:26,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016710757] [2023-12-09 15:13:26,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016710757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:26,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:26,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:26,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696026008] [2023-12-09 15:13:26,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:26,049 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:26,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:26,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:26,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:26,051 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:26,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 1337 transitions, 65301 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:26,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:26,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:26,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:27,579 INFO L124 PetriNetUnfolderBase]: 450/2860 cut-off events. [2023-12-09 15:13:27,579 INFO L125 PetriNetUnfolderBase]: For 133330/142956 co-relation queries the response was YES. [2023-12-09 15:13:27,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43814 conditions, 2860 events. 450/2860 cut-off events. For 133330/142956 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 26951 event pairs, 60 based on Foata normal form. 38/2790 useless extension candidates. Maximal degree in co-relation 27087. Up to 1328 conditions per place. [2023-12-09 15:13:27,600 INFO L140 encePairwiseOnDemand]: 153/168 looper letters, 146 selfloop transitions, 28 changer transitions 963/1268 dead transitions. [2023-12-09 15:13:27,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 615 places, 1268 transitions, 63744 flow [2023-12-09 15:13:27,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:13:27,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:13:27,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2348 transitions. [2023-12-09 15:13:27,613 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7355889724310777 [2023-12-09 15:13:27,613 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2348 transitions. [2023-12-09 15:13:27,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2348 transitions. [2023-12-09 15:13:27,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:27,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2348 transitions. [2023-12-09 15:13:27,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 123.57894736842105) internal successors, (2348), 19 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:27,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 168.0) internal successors, (3360), 20 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:27,624 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 168.0) internal successors, (3360), 20 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:27,624 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 462 predicate places. [2023-12-09 15:13:27,625 INFO L500 AbstractCegarLoop]: Abstraction has has 615 places, 1268 transitions, 63744 flow [2023-12-09 15:13:27,625 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:27,625 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:27,625 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:27,625 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-09 15:13:27,625 INFO L425 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:27,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:27,625 INFO L85 PathProgramCache]: Analyzing trace with hash 982721315, now seen corresponding path program 2 times [2023-12-09 15:13:27,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:27,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968616131] [2023-12-09 15:13:27,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:27,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:27,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:27,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:27,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968616131] [2023-12-09 15:13:27,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968616131] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:27,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:27,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:27,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58368506] [2023-12-09 15:13:27,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:27,740 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:27,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:27,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:27,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:27,741 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:27,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 615 places, 1268 transitions, 63744 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:27,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:27,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:27,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:28,987 INFO L124 PetriNetUnfolderBase]: 462/2925 cut-off events. [2023-12-09 15:13:28,987 INFO L125 PetriNetUnfolderBase]: For 143142/150925 co-relation queries the response was YES. [2023-12-09 15:13:28,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46406 conditions, 2925 events. 462/2925 cut-off events. For 143142/150925 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 27801 event pairs, 63 based on Foata normal form. 46/2862 useless extension candidates. Maximal degree in co-relation 23666. Up to 1369 conditions per place. [2023-12-09 15:13:29,014 INFO L140 encePairwiseOnDemand]: 155/168 looper letters, 144 selfloop transitions, 32 changer transitions 987/1294 dead transitions. [2023-12-09 15:13:29,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 628 places, 1294 transitions, 67365 flow [2023-12-09 15:13:29,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-09 15:13:29,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-12-09 15:13:29,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1731 transitions. [2023-12-09 15:13:29,016 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.735969387755102 [2023-12-09 15:13:29,016 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1731 transitions. [2023-12-09 15:13:29,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1731 transitions. [2023-12-09 15:13:29,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:29,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1731 transitions. [2023-12-09 15:13:29,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 123.64285714285714) internal successors, (1731), 14 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:29,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 168.0) internal successors, (2520), 15 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:29,020 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 168.0) internal successors, (2520), 15 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:29,020 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 475 predicate places. [2023-12-09 15:13:29,020 INFO L500 AbstractCegarLoop]: Abstraction has has 628 places, 1294 transitions, 67365 flow [2023-12-09 15:13:29,020 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:29,020 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:29,020 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:29,020 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-09 15:13:29,021 INFO L425 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:29,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:29,021 INFO L85 PathProgramCache]: Analyzing trace with hash 2019806085, now seen corresponding path program 3 times [2023-12-09 15:13:29,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:29,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253194406] [2023-12-09 15:13:29,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:29,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:29,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:29,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:29,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253194406] [2023-12-09 15:13:29,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253194406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:29,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:29,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:29,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199378605] [2023-12-09 15:13:29,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:29,124 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:29,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:29,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:29,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:29,125 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:29,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 628 places, 1294 transitions, 67365 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:29,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:29,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:29,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:30,690 INFO L124 PetriNetUnfolderBase]: 464/2922 cut-off events. [2023-12-09 15:13:30,690 INFO L125 PetriNetUnfolderBase]: For 152157/160444 co-relation queries the response was YES. [2023-12-09 15:13:30,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48357 conditions, 2922 events. 464/2922 cut-off events. For 152157/160444 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 27812 event pairs, 71 based on Foata normal form. 46/2862 useless extension candidates. Maximal degree in co-relation 27256. Up to 1382 conditions per place. [2023-12-09 15:13:30,710 INFO L140 encePairwiseOnDemand]: 155/168 looper letters, 141 selfloop transitions, 16 changer transitions 1024/1310 dead transitions. [2023-12-09 15:13:30,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 644 places, 1310 transitions, 70337 flow [2023-12-09 15:13:30,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:13:30,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:13:30,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2086 transitions. [2023-12-09 15:13:30,712 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7303921568627451 [2023-12-09 15:13:30,712 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2086 transitions. [2023-12-09 15:13:30,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2086 transitions. [2023-12-09 15:13:30,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:30,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2086 transitions. [2023-12-09 15:13:30,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 122.70588235294117) internal successors, (2086), 17 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:30,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:30,715 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:30,716 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 491 predicate places. [2023-12-09 15:13:30,716 INFO L500 AbstractCegarLoop]: Abstraction has has 644 places, 1310 transitions, 70337 flow [2023-12-09 15:13:30,716 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:30,716 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:30,717 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:30,717 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-09 15:13:30,717 INFO L425 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:30,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:30,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1907112633, now seen corresponding path program 4 times [2023-12-09 15:13:30,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:30,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133408272] [2023-12-09 15:13:30,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:30,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:30,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:30,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:30,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133408272] [2023-12-09 15:13:30,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133408272] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:30,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:30,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:30,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509582121] [2023-12-09 15:13:30,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:30,813 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:30,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:30,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:30,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:30,814 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:30,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 644 places, 1310 transitions, 70337 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:30,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:30,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:30,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:32,285 INFO L124 PetriNetUnfolderBase]: 493/3123 cut-off events. [2023-12-09 15:13:32,286 INFO L125 PetriNetUnfolderBase]: For 175408/183793 co-relation queries the response was YES. [2023-12-09 15:13:32,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52824 conditions, 3123 events. 493/3123 cut-off events. For 175408/183793 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 30250 event pairs, 62 based on Foata normal form. 27/3036 useless extension candidates. Maximal degree in co-relation 27018. Up to 1477 conditions per place. [2023-12-09 15:13:32,319 INFO L140 encePairwiseOnDemand]: 155/168 looper letters, 182 selfloop transitions, 20 changer transitions 1051/1382 dead transitions. [2023-12-09 15:13:32,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 1382 transitions, 76646 flow [2023-12-09 15:13:32,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:13:32,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:13:32,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2225 transitions. [2023-12-09 15:13:32,321 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7357804232804233 [2023-12-09 15:13:32,321 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2225 transitions. [2023-12-09 15:13:32,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2225 transitions. [2023-12-09 15:13:32,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:32,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2225 transitions. [2023-12-09 15:13:32,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 123.61111111111111) internal successors, (2225), 18 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:32,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 168.0) internal successors, (3192), 19 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:32,334 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 168.0) internal successors, (3192), 19 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:32,334 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 508 predicate places. [2023-12-09 15:13:32,334 INFO L500 AbstractCegarLoop]: Abstraction has has 661 places, 1382 transitions, 76646 flow [2023-12-09 15:13:32,334 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:32,334 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:32,334 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:32,335 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-09 15:13:32,335 INFO L425 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:32,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:32,335 INFO L85 PathProgramCache]: Analyzing trace with hash -693733267, now seen corresponding path program 5 times [2023-12-09 15:13:32,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:32,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786132940] [2023-12-09 15:13:32,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:32,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:32,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:32,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:32,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786132940] [2023-12-09 15:13:32,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786132940] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:32,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:32,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:32,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996480676] [2023-12-09 15:13:32,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:32,444 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:32,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:32,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:32,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:32,445 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:32,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 661 places, 1382 transitions, 76646 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:32,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:32,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:32,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:34,130 INFO L124 PetriNetUnfolderBase]: 511/3218 cut-off events. [2023-12-09 15:13:34,131 INFO L125 PetriNetUnfolderBase]: For 189924/198842 co-relation queries the response was YES. [2023-12-09 15:13:34,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55971 conditions, 3218 events. 511/3218 cut-off events. For 189924/198842 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 31464 event pairs, 64 based on Foata normal form. 34/3139 useless extension candidates. Maximal degree in co-relation 32873. Up to 1525 conditions per place. [2023-12-09 15:13:34,169 INFO L140 encePairwiseOnDemand]: 155/168 looper letters, 195 selfloop transitions, 23 changer transitions 1072/1419 dead transitions. [2023-12-09 15:13:34,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 676 places, 1419 transitions, 81147 flow [2023-12-09 15:13:34,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:13:34,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:13:34,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1969 transitions. [2023-12-09 15:13:34,171 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7325148809523809 [2023-12-09 15:13:34,171 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1969 transitions. [2023-12-09 15:13:34,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1969 transitions. [2023-12-09 15:13:34,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:34,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1969 transitions. [2023-12-09 15:13:34,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 123.0625) internal successors, (1969), 16 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:34,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 168.0) internal successors, (2856), 17 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:34,175 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 168.0) internal successors, (2856), 17 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:34,175 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 523 predicate places. [2023-12-09 15:13:34,175 INFO L500 AbstractCegarLoop]: Abstraction has has 676 places, 1419 transitions, 81147 flow [2023-12-09 15:13:34,175 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:34,175 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:34,175 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:34,175 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-09 15:13:34,176 INFO L425 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:34,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:34,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1221934435, now seen corresponding path program 6 times [2023-12-09 15:13:34,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:34,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828946045] [2023-12-09 15:13:34,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:34,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:34,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:34,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:34,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828946045] [2023-12-09 15:13:34,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828946045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:34,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:34,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:34,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836554834] [2023-12-09 15:13:34,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:34,291 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:34,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:34,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:34,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:34,293 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:34,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 676 places, 1419 transitions, 81147 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:34,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:34,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:34,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:36,022 INFO L124 PetriNetUnfolderBase]: 514/3253 cut-off events. [2023-12-09 15:13:36,023 INFO L125 PetriNetUnfolderBase]: For 205212/214673 co-relation queries the response was YES. [2023-12-09 15:13:36,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58258 conditions, 3253 events. 514/3253 cut-off events. For 205212/214673 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 32059 event pairs, 60 based on Foata normal form. 38/3177 useless extension candidates. Maximal degree in co-relation 37053. Up to 1545 conditions per place. [2023-12-09 15:13:36,056 INFO L140 encePairwiseOnDemand]: 155/168 looper letters, 190 selfloop transitions, 24 changer transitions 1090/1433 dead transitions. [2023-12-09 15:13:36,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 690 places, 1433 transitions, 84434 flow [2023-12-09 15:13:36,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:13:36,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:13:36,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1851 transitions. [2023-12-09 15:13:36,058 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7345238095238096 [2023-12-09 15:13:36,058 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1851 transitions. [2023-12-09 15:13:36,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1851 transitions. [2023-12-09 15:13:36,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:36,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1851 transitions. [2023-12-09 15:13:36,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 123.4) internal successors, (1851), 15 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:36,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 168.0) internal successors, (2688), 16 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:36,062 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 168.0) internal successors, (2688), 16 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:36,063 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 537 predicate places. [2023-12-09 15:13:36,063 INFO L500 AbstractCegarLoop]: Abstraction has has 690 places, 1433 transitions, 84434 flow [2023-12-09 15:13:36,063 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:36,063 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:36,064 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:36,064 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-09 15:13:36,064 INFO L425 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:36,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:36,064 INFO L85 PathProgramCache]: Analyzing trace with hash -753057871, now seen corresponding path program 7 times [2023-12-09 15:13:36,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:36,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705267699] [2023-12-09 15:13:36,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:36,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:36,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:36,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:36,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705267699] [2023-12-09 15:13:36,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705267699] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:36,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:36,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:36,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135019884] [2023-12-09 15:13:36,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:36,175 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:36,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:36,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:36,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:36,176 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:36,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 690 places, 1433 transitions, 84434 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:36,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:36,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:36,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:38,191 INFO L124 PetriNetUnfolderBase]: 513/3251 cut-off events. [2023-12-09 15:13:38,191 INFO L125 PetriNetUnfolderBase]: For 222848/232894 co-relation queries the response was YES. [2023-12-09 15:13:38,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60376 conditions, 3251 events. 513/3251 cut-off events. For 222848/232894 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 32087 event pairs, 71 based on Foata normal form. 37/3175 useless extension candidates. Maximal degree in co-relation 31133. Up to 1557 conditions per place. [2023-12-09 15:13:38,222 INFO L140 encePairwiseOnDemand]: 155/168 looper letters, 187 selfloop transitions, 12 changer transitions 1115/1443 dead transitions. [2023-12-09 15:13:38,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 705 places, 1443 transitions, 87612 flow [2023-12-09 15:13:38,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:13:38,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:13:38,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1971 transitions. [2023-12-09 15:13:38,224 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7332589285714286 [2023-12-09 15:13:38,225 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1971 transitions. [2023-12-09 15:13:38,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1971 transitions. [2023-12-09 15:13:38,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:38,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1971 transitions. [2023-12-09 15:13:38,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 123.1875) internal successors, (1971), 16 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:38,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 168.0) internal successors, (2856), 17 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:38,228 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 168.0) internal successors, (2856), 17 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:38,228 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 552 predicate places. [2023-12-09 15:13:38,229 INFO L500 AbstractCegarLoop]: Abstraction has has 705 places, 1443 transitions, 87612 flow [2023-12-09 15:13:38,229 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:38,229 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:38,229 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:38,230 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-09 15:13:38,230 INFO L425 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:38,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:38,230 INFO L85 PathProgramCache]: Analyzing trace with hash -598586743, now seen corresponding path program 8 times [2023-12-09 15:13:38,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:38,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180062987] [2023-12-09 15:13:38,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:38,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:38,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:38,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:38,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180062987] [2023-12-09 15:13:38,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180062987] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:38,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:38,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:38,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305027008] [2023-12-09 15:13:38,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:38,355 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:38,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:38,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:38,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:38,357 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:38,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 705 places, 1443 transitions, 87612 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:38,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:38,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:38,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:40,337 INFO L124 PetriNetUnfolderBase]: 521/3305 cut-off events. [2023-12-09 15:13:40,337 INFO L125 PetriNetUnfolderBase]: For 236898/247437 co-relation queries the response was YES. [2023-12-09 15:13:40,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62978 conditions, 3305 events. 521/3305 cut-off events. For 236898/247437 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 32836 event pairs, 67 based on Foata normal form. 28/3219 useless extension candidates. Maximal degree in co-relation 40134. Up to 1583 conditions per place. [2023-12-09 15:13:40,361 INFO L140 encePairwiseOnDemand]: 155/168 looper letters, 176 selfloop transitions, 19 changer transitions 1136/1460 dead transitions. [2023-12-09 15:13:40,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 721 places, 1460 transitions, 91213 flow [2023-12-09 15:13:40,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:13:40,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:13:40,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2087 transitions. [2023-12-09 15:13:40,363 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7307422969187675 [2023-12-09 15:13:40,363 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2087 transitions. [2023-12-09 15:13:40,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2087 transitions. [2023-12-09 15:13:40,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:40,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2087 transitions. [2023-12-09 15:13:40,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 122.76470588235294) internal successors, (2087), 17 states have internal predecessors, (2087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:40,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:40,367 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:40,367 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 568 predicate places. [2023-12-09 15:13:40,367 INFO L500 AbstractCegarLoop]: Abstraction has has 721 places, 1460 transitions, 91213 flow [2023-12-09 15:13:40,367 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:40,367 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:40,367 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:40,367 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-09 15:13:40,367 INFO L425 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:40,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:40,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1367009679, now seen corresponding path program 9 times [2023-12-09 15:13:40,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:40,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824510271] [2023-12-09 15:13:40,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:40,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:40,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:40,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:40,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824510271] [2023-12-09 15:13:40,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824510271] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:40,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:40,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:40,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607214837] [2023-12-09 15:13:40,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:40,468 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:40,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:40,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:40,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:40,469 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:40,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 721 places, 1460 transitions, 91213 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:40,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:40,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:40,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:42,166 INFO L124 PetriNetUnfolderBase]: 527/3333 cut-off events. [2023-12-09 15:13:42,166 INFO L125 PetriNetUnfolderBase]: For 254539/265425 co-relation queries the response was YES. [2023-12-09 15:13:42,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65315 conditions, 3333 events. 527/3333 cut-off events. For 254539/265425 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 33091 event pairs, 67 based on Foata normal form. 31/3252 useless extension candidates. Maximal degree in co-relation 38353. Up to 1598 conditions per place. [2023-12-09 15:13:42,201 INFO L140 encePairwiseOnDemand]: 155/168 looper letters, 172 selfloop transitions, 19 changer transitions 1154/1474 dead transitions. [2023-12-09 15:13:42,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 735 places, 1474 transitions, 94666 flow [2023-12-09 15:13:42,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:13:42,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:13:42,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1850 transitions. [2023-12-09 15:13:42,203 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7341269841269841 [2023-12-09 15:13:42,203 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1850 transitions. [2023-12-09 15:13:42,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1850 transitions. [2023-12-09 15:13:42,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:42,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1850 transitions. [2023-12-09 15:13:42,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 123.33333333333333) internal successors, (1850), 15 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:42,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 168.0) internal successors, (2688), 16 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:42,206 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 168.0) internal successors, (2688), 16 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:42,206 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 582 predicate places. [2023-12-09 15:13:42,206 INFO L500 AbstractCegarLoop]: Abstraction has has 735 places, 1474 transitions, 94666 flow [2023-12-09 15:13:42,206 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:42,206 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:42,206 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:42,207 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-09 15:13:42,207 INFO L425 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:42,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:42,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1366747353, now seen corresponding path program 10 times [2023-12-09 15:13:42,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:42,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868681185] [2023-12-09 15:13:42,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:42,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:42,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:42,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:42,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868681185] [2023-12-09 15:13:42,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868681185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:42,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:42,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:42,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072073687] [2023-12-09 15:13:42,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:42,443 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:42,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:42,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:42,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:42,444 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:42,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 735 places, 1474 transitions, 94666 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:42,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:42,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:42,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:44,057 INFO L124 PetriNetUnfolderBase]: 524/3316 cut-off events. [2023-12-09 15:13:44,058 INFO L125 PetriNetUnfolderBase]: For 268961/280356 co-relation queries the response was YES. [2023-12-09 15:13:44,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66418 conditions, 3316 events. 524/3316 cut-off events. For 268961/280356 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 33030 event pairs, 69 based on Foata normal form. 31/3238 useless extension candidates. Maximal degree in co-relation 34622. Up to 1581 conditions per place. [2023-12-09 15:13:44,091 INFO L140 encePairwiseOnDemand]: 155/168 looper letters, 145 selfloop transitions, 5 changer transitions 1186/1457 dead transitions. [2023-12-09 15:13:44,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 749 places, 1457 transitions, 95976 flow [2023-12-09 15:13:44,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:13:44,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:13:44,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1852 transitions. [2023-12-09 15:13:44,093 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.734920634920635 [2023-12-09 15:13:44,093 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1852 transitions. [2023-12-09 15:13:44,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1852 transitions. [2023-12-09 15:13:44,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:44,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1852 transitions. [2023-12-09 15:13:44,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 123.46666666666667) internal successors, (1852), 15 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:44,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 168.0) internal successors, (2688), 16 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:44,099 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 168.0) internal successors, (2688), 16 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:44,099 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 596 predicate places. [2023-12-09 15:13:44,099 INFO L500 AbstractCegarLoop]: Abstraction has has 749 places, 1457 transitions, 95976 flow [2023-12-09 15:13:44,100 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:44,100 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:44,100 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:44,100 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-09 15:13:44,100 INFO L425 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:44,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:44,100 INFO L85 PathProgramCache]: Analyzing trace with hash 436722107, now seen corresponding path program 11 times [2023-12-09 15:13:44,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:44,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273720993] [2023-12-09 15:13:44,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:44,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:44,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:44,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:44,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273720993] [2023-12-09 15:13:44,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273720993] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:44,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:44,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:44,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335019622] [2023-12-09 15:13:44,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:44,226 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:44,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:44,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:44,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:44,227 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:44,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 749 places, 1457 transitions, 95976 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:44,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:44,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:44,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:46,439 INFO L124 PetriNetUnfolderBase]: 542/3441 cut-off events. [2023-12-09 15:13:46,440 INFO L125 PetriNetUnfolderBase]: For 289715/300213 co-relation queries the response was YES. [2023-12-09 15:13:46,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70979 conditions, 3441 events. 542/3441 cut-off events. For 289715/300213 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 34685 event pairs, 60 based on Foata normal form. 24/3346 useless extension candidates. Maximal degree in co-relation 36981. Up to 1658 conditions per place. [2023-12-09 15:13:46,474 INFO L140 encePairwiseOnDemand]: 156/168 looper letters, 165 selfloop transitions, 20 changer transitions 1214/1520 dead transitions. [2023-12-09 15:13:46,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 766 places, 1520 transitions, 102848 flow [2023-12-09 15:13:46,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 15:13:46,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 15:13:46,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2207 transitions. [2023-12-09 15:13:46,476 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7298280423280423 [2023-12-09 15:13:46,476 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2207 transitions. [2023-12-09 15:13:46,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2207 transitions. [2023-12-09 15:13:46,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:46,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2207 transitions. [2023-12-09 15:13:46,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 122.61111111111111) internal successors, (2207), 18 states have internal predecessors, (2207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:46,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 168.0) internal successors, (3192), 19 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:46,479 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 168.0) internal successors, (3192), 19 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:46,480 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 613 predicate places. [2023-12-09 15:13:46,480 INFO L500 AbstractCegarLoop]: Abstraction has has 766 places, 1520 transitions, 102848 flow [2023-12-09 15:13:46,480 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:46,481 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:46,481 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:46,481 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-09 15:13:46,481 INFO L425 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:46,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:46,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1470347053, now seen corresponding path program 12 times [2023-12-09 15:13:46,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:46,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577526200] [2023-12-09 15:13:46,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:46,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:46,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:46,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:46,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577526200] [2023-12-09 15:13:46,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577526200] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:46,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:46,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:46,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232182676] [2023-12-09 15:13:46,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:46,610 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:46,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:46,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:46,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:46,611 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:46,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 766 places, 1520 transitions, 102848 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:46,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:46,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:46,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:48,978 INFO L124 PetriNetUnfolderBase]: 544/3386 cut-off events. [2023-12-09 15:13:48,978 INFO L125 PetriNetUnfolderBase]: For 295332/306891 co-relation queries the response was YES. [2023-12-09 15:13:48,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71526 conditions, 3386 events. 544/3386 cut-off events. For 295332/306891 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 33997 event pairs, 59 based on Foata normal form. 46/3320 useless extension candidates. Maximal degree in co-relation 38013. Up to 1627 conditions per place. [2023-12-09 15:13:49,016 INFO L140 encePairwiseOnDemand]: 156/168 looper letters, 112 selfloop transitions, 11 changer transitions 1251/1492 dead transitions. [2023-12-09 15:13:49,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 784 places, 1492 transitions, 103012 flow [2023-12-09 15:13:49,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:13:49,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:13:49,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2323 transitions. [2023-12-09 15:13:49,018 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7277568922305765 [2023-12-09 15:13:49,018 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2323 transitions. [2023-12-09 15:13:49,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2323 transitions. [2023-12-09 15:13:49,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:49,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2323 transitions. [2023-12-09 15:13:49,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 122.26315789473684) internal successors, (2323), 19 states have internal predecessors, (2323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:49,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 168.0) internal successors, (3360), 20 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:49,022 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 168.0) internal successors, (3360), 20 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:49,023 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 631 predicate places. [2023-12-09 15:13:49,023 INFO L500 AbstractCegarLoop]: Abstraction has has 784 places, 1492 transitions, 103012 flow [2023-12-09 15:13:49,023 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:49,023 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:49,023 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:49,023 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-09 15:13:49,023 INFO L425 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:49,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:49,024 INFO L85 PathProgramCache]: Analyzing trace with hash 2057184599, now seen corresponding path program 13 times [2023-12-09 15:13:49,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:49,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502412414] [2023-12-09 15:13:49,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:49,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:49,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:49,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:49,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502412414] [2023-12-09 15:13:49,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502412414] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:49,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:49,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:49,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994679436] [2023-12-09 15:13:49,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:49,150 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:49,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:49,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:49,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:49,154 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:49,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 784 places, 1492 transitions, 103012 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:49,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:49,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:49,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:51,306 INFO L124 PetriNetUnfolderBase]: 550/3415 cut-off events. [2023-12-09 15:13:51,307 INFO L125 PetriNetUnfolderBase]: For 306419/317436 co-relation queries the response was YES. [2023-12-09 15:13:51,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74246 conditions, 3415 events. 550/3415 cut-off events. For 306419/317436 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 34363 event pairs, 58 based on Foata normal form. 31/3337 useless extension candidates. Maximal degree in co-relation 40850. Up to 1653 conditions per place. [2023-12-09 15:13:51,342 INFO L140 encePairwiseOnDemand]: 156/168 looper letters, 106 selfloop transitions, 13 changer transitions 1273/1509 dead transitions. [2023-12-09 15:13:51,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 800 places, 1509 transitions, 106881 flow [2023-12-09 15:13:51,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 15:13:51,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 15:13:51,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2064 transitions. [2023-12-09 15:13:51,357 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7226890756302521 [2023-12-09 15:13:51,357 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2064 transitions. [2023-12-09 15:13:51,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2064 transitions. [2023-12-09 15:13:51,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:51,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2064 transitions. [2023-12-09 15:13:51,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 121.41176470588235) internal successors, (2064), 17 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:51,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:51,360 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:51,361 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 647 predicate places. [2023-12-09 15:13:51,361 INFO L500 AbstractCegarLoop]: Abstraction has has 800 places, 1509 transitions, 106881 flow [2023-12-09 15:13:51,361 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:51,361 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:51,361 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:51,361 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-09 15:13:51,361 INFO L425 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:51,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:51,361 INFO L85 PathProgramCache]: Analyzing trace with hash 988051691, now seen corresponding path program 14 times [2023-12-09 15:13:51,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:51,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833432506] [2023-12-09 15:13:51,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:51,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:51,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:51,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:51,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833432506] [2023-12-09 15:13:51,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833432506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:51,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:51,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:51,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336687433] [2023-12-09 15:13:51,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:51,499 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:51,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:51,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:51,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:51,500 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:51,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 800 places, 1509 transitions, 106881 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:51,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:51,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:51,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:53,815 INFO L124 PetriNetUnfolderBase]: 609/3731 cut-off events. [2023-12-09 15:13:53,815 INFO L125 PetriNetUnfolderBase]: For 346641/358020 co-relation queries the response was YES. [2023-12-09 15:13:53,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82714 conditions, 3731 events. 609/3731 cut-off events. For 346641/358020 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 38138 event pairs, 42 based on Foata normal form. 47/3660 useless extension candidates. Maximal degree in co-relation 44375. Up to 1766 conditions per place. [2023-12-09 15:13:53,853 INFO L140 encePairwiseOnDemand]: 150/168 looper letters, 99 selfloop transitions, 13 changer transitions 1397/1626 dead transitions. [2023-12-09 15:13:53,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 814 places, 1626 transitions, 118812 flow [2023-12-09 15:13:53,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:13:53,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:13:53,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1851 transitions. [2023-12-09 15:13:53,855 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7345238095238096 [2023-12-09 15:13:53,855 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1851 transitions. [2023-12-09 15:13:53,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1851 transitions. [2023-12-09 15:13:53,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:53,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1851 transitions. [2023-12-09 15:13:53,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 123.4) internal successors, (1851), 15 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:53,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 168.0) internal successors, (2688), 16 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:53,857 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 168.0) internal successors, (2688), 16 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:53,858 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 661 predicate places. [2023-12-09 15:13:53,858 INFO L500 AbstractCegarLoop]: Abstraction has has 814 places, 1626 transitions, 118812 flow [2023-12-09 15:13:53,858 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:53,858 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:53,858 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:53,858 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-09 15:13:53,858 INFO L425 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:53,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:53,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2145287837, now seen corresponding path program 15 times [2023-12-09 15:13:53,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:53,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333371271] [2023-12-09 15:13:53,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:53,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:53,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:53,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:53,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333371271] [2023-12-09 15:13:53,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333371271] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:53,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:53,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:53,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080221291] [2023-12-09 15:13:53,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:53,965 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:53,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:53,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:53,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:53,966 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 168 [2023-12-09 15:13:53,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 814 places, 1626 transitions, 118812 flow. Second operand has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:53,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:53,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 168 [2023-12-09 15:13:53,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:56,493 INFO L124 PetriNetUnfolderBase]: 609/3717 cut-off events. [2023-12-09 15:13:56,493 INFO L125 PetriNetUnfolderBase]: For 361003/370009 co-relation queries the response was YES. [2023-12-09 15:13:56,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83952 conditions, 3717 events. 609/3717 cut-off events. For 361003/370009 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 38058 event pairs, 41 based on Foata normal form. 32/3629 useless extension candidates. Maximal degree in co-relation 45438. Up to 1750 conditions per place. [2023-12-09 15:13:56,533 INFO L140 encePairwiseOnDemand]: 156/168 looper letters, 76 selfloop transitions, 0 changer transitions 1419/1609 dead transitions. [2023-12-09 15:13:56,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 828 places, 1609 transitions, 120256 flow [2023-12-09 15:13:56,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:13:56,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:13:56,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1827 transitions. [2023-12-09 15:13:56,535 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.725 [2023-12-09 15:13:56,535 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1827 transitions. [2023-12-09 15:13:56,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1827 transitions. [2023-12-09 15:13:56,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:56,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1827 transitions. [2023-12-09 15:13:56,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 121.8) internal successors, (1827), 15 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:56,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 168.0) internal successors, (2688), 16 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:56,537 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 168.0) internal successors, (2688), 16 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:56,538 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 675 predicate places. [2023-12-09 15:13:56,538 INFO L500 AbstractCegarLoop]: Abstraction has has 828 places, 1609 transitions, 120256 flow [2023-12-09 15:13:56,538 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.5) internal successors, (1195), 10 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:56,538 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:56,538 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:56,538 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-09 15:13:56,538 INFO L425 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:13:56,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:56,539 INFO L85 PathProgramCache]: Analyzing trace with hash 132151238, now seen corresponding path program 1 times [2023-12-09 15:13:56,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:56,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081376880] [2023-12-09 15:13:56,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:56,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:57,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:57,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:57,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081376880] [2023-12-09 15:13:57,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081376880] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:57,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:57,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-09 15:13:57,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001039728] [2023-12-09 15:13:57,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:57,206 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 15:13:57,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:57,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 15:13:57,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2023-12-09 15:13:57,207 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 168 [2023-12-09 15:13:57,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 828 places, 1609 transitions, 120256 flow. Second operand has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:57,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:57,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 168 [2023-12-09 15:13:57,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:14:02,223 INFO L124 PetriNetUnfolderBase]: 1480/5702 cut-off events. [2023-12-09 15:14:02,223 INFO L125 PetriNetUnfolderBase]: For 649586/657208 co-relation queries the response was YES. [2023-12-09 15:14:02,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112675 conditions, 5702 events. 1480/5702 cut-off events. For 649586/657208 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 55354 event pairs, 261 based on Foata normal form. 13/5560 useless extension candidates. Maximal degree in co-relation 68955. Up to 2807 conditions per place. [2023-12-09 15:14:02,280 INFO L140 encePairwiseOnDemand]: 130/168 looper letters, 328 selfloop transitions, 46 changer transitions 1479/1944 dead transitions. [2023-12-09 15:14:02,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 881 places, 1944 transitions, 137783 flow [2023-12-09 15:14:02,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-12-09 15:14:02,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2023-12-09 15:14:02,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 5200 transitions. [2023-12-09 15:14:02,284 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5731922398589065 [2023-12-09 15:14:02,284 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 5200 transitions. [2023-12-09 15:14:02,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 5200 transitions. [2023-12-09 15:14:02,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:14:02,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 5200 transitions. [2023-12-09 15:14:02,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 96.29629629629629) internal successors, (5200), 54 states have internal predecessors, (5200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:02,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 168.0) internal successors, (9240), 55 states have internal predecessors, (9240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:02,292 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 168.0) internal successors, (9240), 55 states have internal predecessors, (9240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:02,293 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 728 predicate places. [2023-12-09 15:14:02,293 INFO L500 AbstractCegarLoop]: Abstraction has has 881 places, 1944 transitions, 137783 flow [2023-12-09 15:14:02,293 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:02,293 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:14:02,293 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:14:02,293 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-09 15:14:02,293 INFO L425 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:14:02,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:14:02,294 INFO L85 PathProgramCache]: Analyzing trace with hash 634585580, now seen corresponding path program 2 times [2023-12-09 15:14:02,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:14:02,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179055347] [2023-12-09 15:14:02,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:02,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:14:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:14:02,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:14:02,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:14:02,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179055347] [2023-12-09 15:14:02,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179055347] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:14:02,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:14:02,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-09 15:14:02,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871912619] [2023-12-09 15:14:02,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:14:02,796 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 15:14:02,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:14:02,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 15:14:02,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2023-12-09 15:14:02,797 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 168 [2023-12-09 15:14:02,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 881 places, 1944 transitions, 137783 flow. Second operand has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:02,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:14:02,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 168 [2023-12-09 15:14:02,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:14:09,601 INFO L124 PetriNetUnfolderBase]: 1551/5812 cut-off events. [2023-12-09 15:14:09,601 INFO L125 PetriNetUnfolderBase]: For 676002/684229 co-relation queries the response was YES. [2023-12-09 15:14:09,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120642 conditions, 5812 events. 1551/5812 cut-off events. For 676002/684229 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 55490 event pairs, 273 based on Foata normal form. 8/5678 useless extension candidates. Maximal degree in co-relation 74818. Up to 2834 conditions per place. [2023-12-09 15:14:09,666 INFO L140 encePairwiseOnDemand]: 130/168 looper letters, 413 selfloop transitions, 194 changer transitions 1673/2368 dead transitions. [2023-12-09 15:14:09,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 2368 transitions, 156868 flow [2023-12-09 15:14:09,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2023-12-09 15:14:09,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2023-12-09 15:14:09,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 7504 transitions. [2023-12-09 15:14:09,671 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5654008438818565 [2023-12-09 15:14:09,671 INFO L72 ComplementDD]: Start complementDD. Operand 79 states and 7504 transitions. [2023-12-09 15:14:09,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 79 states and 7504 transitions. [2023-12-09 15:14:09,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:14:09,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 79 states and 7504 transitions. [2023-12-09 15:14:09,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 80 states, 79 states have (on average 94.9873417721519) internal successors, (7504), 79 states have internal predecessors, (7504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:09,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 80 states, 80 states have (on average 168.0) internal successors, (13440), 80 states have internal predecessors, (13440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:09,684 INFO L81 ComplementDD]: Finished complementDD. Result has 80 states, 80 states have (on average 168.0) internal successors, (13440), 80 states have internal predecessors, (13440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:09,685 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 806 predicate places. [2023-12-09 15:14:09,685 INFO L500 AbstractCegarLoop]: Abstraction has has 959 places, 2368 transitions, 156868 flow [2023-12-09 15:14:09,685 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:09,685 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:14:09,685 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:14:09,686 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-09 15:14:09,686 INFO L425 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:14:09,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:14:09,686 INFO L85 PathProgramCache]: Analyzing trace with hash -428987468, now seen corresponding path program 3 times [2023-12-09 15:14:09,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:14:09,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842549909] [2023-12-09 15:14:09,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:09,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:14:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:14:10,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:14:10,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:14:10,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842549909] [2023-12-09 15:14:10,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842549909] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:14:10,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:14:10,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-09 15:14:10,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110589680] [2023-12-09 15:14:10,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:14:10,430 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 15:14:10,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:14:10,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 15:14:10,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2023-12-09 15:14:10,431 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 168 [2023-12-09 15:14:10,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 959 places, 2368 transitions, 156868 flow. Second operand has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:10,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:14:10,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 168 [2023-12-09 15:14:10,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:14:17,419 INFO L124 PetriNetUnfolderBase]: 1695/6307 cut-off events. [2023-12-09 15:14:17,420 INFO L125 PetriNetUnfolderBase]: For 726736/735877 co-relation queries the response was YES. [2023-12-09 15:14:17,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129975 conditions, 6307 events. 1695/6307 cut-off events. For 726736/735877 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 60618 event pairs, 284 based on Foata normal form. 38/6182 useless extension candidates. Maximal degree in co-relation 81211. Up to 3562 conditions per place. [2023-12-09 15:14:17,484 INFO L140 encePairwiseOnDemand]: 130/168 looper letters, 610 selfloop transitions, 123 changer transitions 1789/2610 dead transitions. [2023-12-09 15:14:17,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1002 places, 2610 transitions, 169194 flow [2023-12-09 15:14:17,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-12-09 15:14:17,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2023-12-09 15:14:17,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 4202 transitions. [2023-12-09 15:14:17,486 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5684523809523809 [2023-12-09 15:14:17,487 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 4202 transitions. [2023-12-09 15:14:17,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 4202 transitions. [2023-12-09 15:14:17,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:14:17,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 4202 transitions. [2023-12-09 15:14:17,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 95.5) internal successors, (4202), 44 states have internal predecessors, (4202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:17,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 168.0) internal successors, (7560), 45 states have internal predecessors, (7560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:17,493 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 168.0) internal successors, (7560), 45 states have internal predecessors, (7560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:17,494 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 849 predicate places. [2023-12-09 15:14:17,494 INFO L500 AbstractCegarLoop]: Abstraction has has 1002 places, 2610 transitions, 169194 flow [2023-12-09 15:14:17,494 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:17,494 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:14:17,494 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:14:17,494 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-09 15:14:17,494 INFO L425 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:14:17,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:14:17,495 INFO L85 PathProgramCache]: Analyzing trace with hash 2071916028, now seen corresponding path program 4 times [2023-12-09 15:14:17,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:14:17,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850643585] [2023-12-09 15:14:17,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:17,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:14:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:14:18,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:14:18,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:14:18,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850643585] [2023-12-09 15:14:18,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850643585] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:14:18,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:14:18,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-09 15:14:18,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448048448] [2023-12-09 15:14:18,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:14:18,158 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 15:14:18,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:14:18,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 15:14:18,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2023-12-09 15:14:18,160 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 168 [2023-12-09 15:14:18,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1002 places, 2610 transitions, 169194 flow. Second operand has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:18,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:14:18,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 168 [2023-12-09 15:14:18,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:14:26,261 INFO L124 PetriNetUnfolderBase]: 1794/6628 cut-off events. [2023-12-09 15:14:26,261 INFO L125 PetriNetUnfolderBase]: For 777517/786975 co-relation queries the response was YES. [2023-12-09 15:14:26,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141881 conditions, 6628 events. 1794/6628 cut-off events. For 777517/786975 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 63424 event pairs, 283 based on Foata normal form. 47/6504 useless extension candidates. Maximal degree in co-relation 88646. Up to 3781 conditions per place. [2023-12-09 15:14:26,332 INFO L140 encePairwiseOnDemand]: 130/168 looper letters, 696 selfloop transitions, 147 changer transitions 1892/2823 dead transitions. [2023-12-09 15:14:26,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1054 places, 2823 transitions, 186955 flow [2023-12-09 15:14:26,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-09 15:14:26,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2023-12-09 15:14:26,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 5056 transitions. [2023-12-09 15:14:26,335 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5678346810422282 [2023-12-09 15:14:26,335 INFO L72 ComplementDD]: Start complementDD. Operand 53 states and 5056 transitions. [2023-12-09 15:14:26,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 5056 transitions. [2023-12-09 15:14:26,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:14:26,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 53 states and 5056 transitions. [2023-12-09 15:14:26,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 54 states, 53 states have (on average 95.39622641509433) internal successors, (5056), 53 states have internal predecessors, (5056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:26,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 54 states, 54 states have (on average 168.0) internal successors, (9072), 54 states have internal predecessors, (9072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:26,344 INFO L81 ComplementDD]: Finished complementDD. Result has 54 states, 54 states have (on average 168.0) internal successors, (9072), 54 states have internal predecessors, (9072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:26,344 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 901 predicate places. [2023-12-09 15:14:26,344 INFO L500 AbstractCegarLoop]: Abstraction has has 1054 places, 2823 transitions, 186955 flow [2023-12-09 15:14:26,344 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:26,344 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:14:26,345 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:14:26,345 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-09 15:14:26,345 INFO L425 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:14:26,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:14:26,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1953354428, now seen corresponding path program 5 times [2023-12-09 15:14:26,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:14:26,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762066036] [2023-12-09 15:14:26,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:26,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:14:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:14:26,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:14:26,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:14:26,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762066036] [2023-12-09 15:14:26,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762066036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:14:26,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:14:26,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-09 15:14:26,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523233263] [2023-12-09 15:14:26,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:14:26,805 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 15:14:26,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:14:26,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 15:14:26,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2023-12-09 15:14:26,806 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 168 [2023-12-09 15:14:26,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1054 places, 2823 transitions, 186955 flow. Second operand has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:26,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:14:26,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 168 [2023-12-09 15:14:26,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:14:36,246 INFO L124 PetriNetUnfolderBase]: 1798/6695 cut-off events. [2023-12-09 15:14:36,246 INFO L125 PetriNetUnfolderBase]: For 818843/828455 co-relation queries the response was YES. [2023-12-09 15:14:36,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148927 conditions, 6695 events. 1798/6695 cut-off events. For 818843/828455 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 63982 event pairs, 290 based on Foata normal form. 43/6569 useless extension candidates. Maximal degree in co-relation 99780. Up to 3842 conditions per place. [2023-12-09 15:14:36,325 INFO L140 encePairwiseOnDemand]: 130/168 looper letters, 672 selfloop transitions, 140 changer transitions 1986/2886 dead transitions. [2023-12-09 15:14:36,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1101 places, 2886 transitions, 196930 flow [2023-12-09 15:14:36,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-09 15:14:36,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-12-09 15:14:36,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 4571 transitions. [2023-12-09 15:14:36,412 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5668402777777778 [2023-12-09 15:14:36,412 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 4571 transitions. [2023-12-09 15:14:36,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 4571 transitions. [2023-12-09 15:14:36,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:14:36,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 4571 transitions. [2023-12-09 15:14:36,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 95.22916666666667) internal successors, (4571), 48 states have internal predecessors, (4571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:36,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 168.0) internal successors, (8232), 49 states have internal predecessors, (8232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:36,420 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 168.0) internal successors, (8232), 49 states have internal predecessors, (8232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:36,420 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 948 predicate places. [2023-12-09 15:14:36,421 INFO L500 AbstractCegarLoop]: Abstraction has has 1101 places, 2886 transitions, 196930 flow [2023-12-09 15:14:36,421 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:36,421 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:14:36,421 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:14:36,421 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-09 15:14:36,421 INFO L425 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:14:36,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:14:36,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1589346352, now seen corresponding path program 6 times [2023-12-09 15:14:36,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:14:36,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618186930] [2023-12-09 15:14:36,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:36,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:14:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:14:36,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:14:36,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:14:36,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618186930] [2023-12-09 15:14:36,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618186930] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:14:36,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:14:36,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-09 15:14:36,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181927685] [2023-12-09 15:14:36,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:14:36,940 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 15:14:36,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:14:36,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 15:14:36,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2023-12-09 15:14:36,941 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 168 [2023-12-09 15:14:36,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1101 places, 2886 transitions, 196930 flow. Second operand has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:36,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:14:36,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 168 [2023-12-09 15:14:36,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:14:46,387 INFO L124 PetriNetUnfolderBase]: 1828/6798 cut-off events. [2023-12-09 15:14:46,387 INFO L125 PetriNetUnfolderBase]: For 839582/850610 co-relation queries the response was YES. [2023-12-09 15:14:46,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156222 conditions, 6798 events. 1828/6798 cut-off events. For 839582/850610 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 65024 event pairs, 292 based on Foata normal form. 40/6660 useless extension candidates. Maximal degree in co-relation 97830. Up to 3902 conditions per place. [2023-12-09 15:14:46,470 INFO L140 encePairwiseOnDemand]: 130/168 looper letters, 663 selfloop transitions, 140 changer transitions 2050/2941 dead transitions. [2023-12-09 15:14:46,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1142 places, 2941 transitions, 206520 flow [2023-12-09 15:14:46,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-09 15:14:46,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2023-12-09 15:14:46,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 4014 transitions. [2023-12-09 15:14:46,473 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5688775510204082 [2023-12-09 15:14:46,473 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 4014 transitions. [2023-12-09 15:14:46,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 4014 transitions. [2023-12-09 15:14:46,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:14:46,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 4014 transitions. [2023-12-09 15:14:46,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 95.57142857142857) internal successors, (4014), 42 states have internal predecessors, (4014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:46,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 168.0) internal successors, (7224), 43 states have internal predecessors, (7224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:46,480 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 168.0) internal successors, (7224), 43 states have internal predecessors, (7224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:46,480 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 989 predicate places. [2023-12-09 15:14:46,480 INFO L500 AbstractCegarLoop]: Abstraction has has 1142 places, 2941 transitions, 206520 flow [2023-12-09 15:14:46,480 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:46,480 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:14:46,480 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:14:46,481 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-09 15:14:46,481 INFO L425 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:14:46,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:14:46,481 INFO L85 PathProgramCache]: Analyzing trace with hash 2033688068, now seen corresponding path program 7 times [2023-12-09 15:14:46,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:14:46,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022314554] [2023-12-09 15:14:46,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:46,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:14:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:14:47,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:14:47,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:14:47,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022314554] [2023-12-09 15:14:47,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022314554] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:14:47,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:14:47,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-09 15:14:47,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178389787] [2023-12-09 15:14:47,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:14:47,138 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 15:14:47,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:14:47,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 15:14:47,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2023-12-09 15:14:47,140 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 168 [2023-12-09 15:14:47,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1142 places, 2941 transitions, 206520 flow. Second operand has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:47,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:14:47,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 168 [2023-12-09 15:14:47,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:14:56,682 INFO L124 PetriNetUnfolderBase]: 1824/6861 cut-off events. [2023-12-09 15:14:56,682 INFO L125 PetriNetUnfolderBase]: For 880010/891459 co-relation queries the response was YES. [2023-12-09 15:14:56,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162819 conditions, 6861 events. 1824/6861 cut-off events. For 880010/891459 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 65824 event pairs, 281 based on Foata normal form. 35/6718 useless extension candidates. Maximal degree in co-relation 118463. Up to 3945 conditions per place. [2023-12-09 15:14:56,754 INFO L140 encePairwiseOnDemand]: 130/168 looper letters, 660 selfloop transitions, 135 changer transitions 2105/2988 dead transitions. [2023-12-09 15:14:56,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1181 places, 2988 transitions, 215677 flow [2023-12-09 15:14:56,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-09 15:14:56,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2023-12-09 15:14:56,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 3820 transitions. [2023-12-09 15:14:56,757 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5684523809523809 [2023-12-09 15:14:56,757 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 3820 transitions. [2023-12-09 15:14:56,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 3820 transitions. [2023-12-09 15:14:56,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:14:56,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 3820 transitions. [2023-12-09 15:14:56,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 95.5) internal successors, (3820), 40 states have internal predecessors, (3820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:56,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 168.0) internal successors, (6888), 41 states have internal predecessors, (6888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:56,762 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 168.0) internal successors, (6888), 41 states have internal predecessors, (6888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:56,763 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 1028 predicate places. [2023-12-09 15:14:56,763 INFO L500 AbstractCegarLoop]: Abstraction has has 1181 places, 2988 transitions, 215677 flow [2023-12-09 15:14:56,763 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:56,763 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:14:56,763 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:14:56,763 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-09 15:14:56,763 INFO L425 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:14:56,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:14:56,763 INFO L85 PathProgramCache]: Analyzing trace with hash -240395498, now seen corresponding path program 8 times [2023-12-09 15:14:56,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:14:56,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869731303] [2023-12-09 15:14:56,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:56,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:14:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:14:57,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:14:57,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:14:57,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869731303] [2023-12-09 15:14:57,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869731303] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:14:57,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:14:57,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-09 15:14:57,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406174398] [2023-12-09 15:14:57,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:14:57,242 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 15:14:57,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:14:57,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 15:14:57,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2023-12-09 15:14:57,244 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 168 [2023-12-09 15:14:57,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1181 places, 2988 transitions, 215677 flow. Second operand has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:57,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:14:57,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 168 [2023-12-09 15:14:57,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:15:07,545 INFO L124 PetriNetUnfolderBase]: 1824/6878 cut-off events. [2023-12-09 15:15:07,545 INFO L125 PetriNetUnfolderBase]: For 918602/929933 co-relation queries the response was YES. [2023-12-09 15:15:07,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167707 conditions, 6878 events. 1824/6878 cut-off events. For 918602/929933 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 66108 event pairs, 281 based on Foata normal form. 46/6750 useless extension candidates. Maximal degree in co-relation 105617. Up to 3941 conditions per place. [2023-12-09 15:15:07,680 INFO L140 encePairwiseOnDemand]: 130/168 looper letters, 609 selfloop transitions, 120 changer transitions 2168/2985 dead transitions. [2023-12-09 15:15:07,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1220 places, 2985 transitions, 221079 flow [2023-12-09 15:15:07,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-09 15:15:07,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2023-12-09 15:15:07,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 3825 transitions. [2023-12-09 15:15:07,682 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5691964285714286 [2023-12-09 15:15:07,682 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 3825 transitions. [2023-12-09 15:15:07,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 3825 transitions. [2023-12-09 15:15:07,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:15:07,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 3825 transitions. [2023-12-09 15:15:07,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 95.625) internal successors, (3825), 40 states have internal predecessors, (3825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:07,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 168.0) internal successors, (6888), 41 states have internal predecessors, (6888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:07,688 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 168.0) internal successors, (6888), 41 states have internal predecessors, (6888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:07,689 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 1067 predicate places. [2023-12-09 15:15:07,689 INFO L500 AbstractCegarLoop]: Abstraction has has 1220 places, 2985 transitions, 221079 flow [2023-12-09 15:15:07,689 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:07,689 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:15:07,689 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:15:07,689 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-09 15:15:07,689 INFO L425 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:15:07,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:15:07,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1850392672, now seen corresponding path program 9 times [2023-12-09 15:15:07,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:15:07,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057992397] [2023-12-09 15:15:07,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:15:07,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:15:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:15:08,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:15:08,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:15:08,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057992397] [2023-12-09 15:15:08,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057992397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:15:08,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:15:08,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-09 15:15:08,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559923750] [2023-12-09 15:15:08,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:15:08,229 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 15:15:08,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:15:08,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 15:15:08,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2023-12-09 15:15:08,231 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 168 [2023-12-09 15:15:08,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1220 places, 2985 transitions, 221079 flow. Second operand has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:08,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:15:08,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 168 [2023-12-09 15:15:08,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:15:19,229 INFO L124 PetriNetUnfolderBase]: 1928/7172 cut-off events. [2023-12-09 15:15:19,229 INFO L125 PetriNetUnfolderBase]: For 968962/980991 co-relation queries the response was YES. [2023-12-09 15:15:19,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181587 conditions, 7172 events. 1928/7172 cut-off events. For 968962/980991 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 68626 event pairs, 278 based on Foata normal form. 49/7046 useless extension candidates. Maximal degree in co-relation 115979. Up to 4172 conditions per place. [2023-12-09 15:15:19,318 INFO L140 encePairwiseOnDemand]: 130/168 looper letters, 685 selfloop transitions, 166 changer transitions 2262/3201 dead transitions. [2023-12-09 15:15:19,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1274 places, 3201 transitions, 242404 flow [2023-12-09 15:15:19,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-12-09 15:15:19,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2023-12-09 15:15:19,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 5221 transitions. [2023-12-09 15:15:19,321 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.56504329004329 [2023-12-09 15:15:19,321 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 5221 transitions. [2023-12-09 15:15:19,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 5221 transitions. [2023-12-09 15:15:19,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:15:19,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 5221 transitions. [2023-12-09 15:15:19,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 56 states, 55 states have (on average 94.92727272727272) internal successors, (5221), 55 states have internal predecessors, (5221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:19,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 56 states, 56 states have (on average 168.0) internal successors, (9408), 56 states have internal predecessors, (9408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:19,329 INFO L81 ComplementDD]: Finished complementDD. Result has 56 states, 56 states have (on average 168.0) internal successors, (9408), 56 states have internal predecessors, (9408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:19,330 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 1121 predicate places. [2023-12-09 15:15:19,330 INFO L500 AbstractCegarLoop]: Abstraction has has 1274 places, 3201 transitions, 242404 flow [2023-12-09 15:15:19,331 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:19,331 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:15:19,331 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:15:19,331 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-09 15:15:19,331 INFO L425 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:15:19,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:15:19,331 INFO L85 PathProgramCache]: Analyzing trace with hash 980596138, now seen corresponding path program 10 times [2023-12-09 15:15:19,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:15:19,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416430494] [2023-12-09 15:15:19,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:15:19,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:15:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:15:19,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:15:19,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:15:19,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416430494] [2023-12-09 15:15:19,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416430494] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:15:19,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:15:19,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-09 15:15:19,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195289209] [2023-12-09 15:15:19,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:15:19,826 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 15:15:19,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:15:19,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 15:15:19,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2023-12-09 15:15:19,827 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 168 [2023-12-09 15:15:19,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1274 places, 3201 transitions, 242404 flow. Second operand has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:19,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:15:19,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 168 [2023-12-09 15:15:19,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:15:32,941 INFO L124 PetriNetUnfolderBase]: 1963/7334 cut-off events. [2023-12-09 15:15:32,941 INFO L125 PetriNetUnfolderBase]: For 1016184/1029188 co-relation queries the response was YES. [2023-12-09 15:15:32,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191071 conditions, 7334 events. 1963/7334 cut-off events. For 1016184/1029188 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 70520 event pairs, 276 based on Foata normal form. 34/7187 useless extension candidates. Maximal degree in co-relation 122289. Up to 4273 conditions per place. [2023-12-09 15:15:33,029 INFO L140 encePairwiseOnDemand]: 130/168 looper letters, 708 selfloop transitions, 174 changer transitions 2326/3296 dead transitions. [2023-12-09 15:15:33,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1321 places, 3296 transitions, 256440 flow [2023-12-09 15:15:33,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-09 15:15:33,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-12-09 15:15:33,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 4577 transitions. [2023-12-09 15:15:33,032 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5675843253968254 [2023-12-09 15:15:33,032 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 4577 transitions. [2023-12-09 15:15:33,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 4577 transitions. [2023-12-09 15:15:33,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:15:33,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 4577 transitions. [2023-12-09 15:15:33,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 95.35416666666667) internal successors, (4577), 48 states have internal predecessors, (4577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:33,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 168.0) internal successors, (8232), 49 states have internal predecessors, (8232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:33,039 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 168.0) internal successors, (8232), 49 states have internal predecessors, (8232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:33,039 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 1168 predicate places. [2023-12-09 15:15:33,039 INFO L500 AbstractCegarLoop]: Abstraction has has 1321 places, 3296 transitions, 256440 flow [2023-12-09 15:15:33,040 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:33,040 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:15:33,040 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:15:33,040 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-09 15:15:33,040 INFO L425 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:15:33,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:15:33,040 INFO L85 PathProgramCache]: Analyzing trace with hash -742225800, now seen corresponding path program 11 times [2023-12-09 15:15:33,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:15:33,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062774021] [2023-12-09 15:15:33,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:15:33,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:15:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:15:33,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:15:33,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:15:33,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062774021] [2023-12-09 15:15:33,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062774021] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:15:33,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:15:33,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-09 15:15:33,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929731577] [2023-12-09 15:15:33,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:15:33,524 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 15:15:33,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:15:33,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 15:15:33,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2023-12-09 15:15:33,526 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 168 [2023-12-09 15:15:33,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1321 places, 3296 transitions, 256440 flow. Second operand has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:33,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:15:33,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 168 [2023-12-09 15:15:33,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:15:48,685 INFO L124 PetriNetUnfolderBase]: 2033/7508 cut-off events. [2023-12-09 15:15:48,685 INFO L125 PetriNetUnfolderBase]: For 1067964/1082350 co-relation queries the response was YES. [2023-12-09 15:15:48,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202191 conditions, 7508 events. 2033/7508 cut-off events. For 1067964/1082350 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 72040 event pairs, 270 based on Foata normal form. 39/7361 useless extension candidates. Maximal degree in co-relation 129737. Up to 4418 conditions per place. [2023-12-09 15:15:48,781 INFO L140 encePairwiseOnDemand]: 130/168 looper letters, 729 selfloop transitions, 190 changer transitions 2420/3427 dead transitions. [2023-12-09 15:15:48,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1376 places, 3427 transitions, 272549 flow [2023-12-09 15:15:48,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-09 15:15:48,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2023-12-09 15:15:48,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 5318 transitions. [2023-12-09 15:15:48,784 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5652636054421769 [2023-12-09 15:15:48,784 INFO L72 ComplementDD]: Start complementDD. Operand 56 states and 5318 transitions. [2023-12-09 15:15:48,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 5318 transitions. [2023-12-09 15:15:48,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:15:48,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 56 states and 5318 transitions. [2023-12-09 15:15:48,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 57 states, 56 states have (on average 94.96428571428571) internal successors, (5318), 56 states have internal predecessors, (5318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:48,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 57 states, 57 states have (on average 168.0) internal successors, (9576), 57 states have internal predecessors, (9576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:48,793 INFO L81 ComplementDD]: Finished complementDD. Result has 57 states, 57 states have (on average 168.0) internal successors, (9576), 57 states have internal predecessors, (9576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:48,793 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 1223 predicate places. [2023-12-09 15:15:48,793 INFO L500 AbstractCegarLoop]: Abstraction has has 1376 places, 3427 transitions, 272549 flow [2023-12-09 15:15:48,794 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:48,794 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:15:48,794 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:15:48,794 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-09 15:15:48,794 INFO L425 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:15:48,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:15:48,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1266988, now seen corresponding path program 12 times [2023-12-09 15:15:48,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:15:48,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579784106] [2023-12-09 15:15:48,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:15:48,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:15:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:15:49,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:15:49,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:15:49,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579784106] [2023-12-09 15:15:49,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579784106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:15:49,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:15:49,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-09 15:15:49,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841598074] [2023-12-09 15:15:49,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:15:49,280 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 15:15:49,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:15:49,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 15:15:49,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2023-12-09 15:15:49,281 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 168 [2023-12-09 15:15:49,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1376 places, 3427 transitions, 272549 flow. Second operand has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:15:49,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:15:49,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 168 [2023-12-09 15:15:49,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:16:05,591 INFO L124 PetriNetUnfolderBase]: 2051/7680 cut-off events. [2023-12-09 15:16:05,591 INFO L125 PetriNetUnfolderBase]: For 1117771/1133372 co-relation queries the response was YES. [2023-12-09 15:16:05,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211754 conditions, 7680 events. 2051/7680 cut-off events. For 1117771/1133372 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 74018 event pairs, 283 based on Foata normal form. 37/7524 useless extension candidates. Maximal degree in co-relation 134662. Up to 4503 conditions per place. [2023-12-09 15:16:05,821 INFO L140 encePairwiseOnDemand]: 130/168 looper letters, 741 selfloop transitions, 172 changer transitions 2523/3524 dead transitions. [2023-12-09 15:16:05,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1437 places, 3524 transitions, 286962 flow [2023-12-09 15:16:05,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-12-09 15:16:05,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2023-12-09 15:16:05,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 5884 transitions. [2023-12-09 15:16:05,824 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.564900153609831 [2023-12-09 15:16:05,824 INFO L72 ComplementDD]: Start complementDD. Operand 62 states and 5884 transitions. [2023-12-09 15:16:05,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 5884 transitions. [2023-12-09 15:16:05,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:16:05,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 62 states and 5884 transitions. [2023-12-09 15:16:05,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 63 states, 62 states have (on average 94.90322580645162) internal successors, (5884), 62 states have internal predecessors, (5884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:05,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 63 states, 63 states have (on average 168.0) internal successors, (10584), 63 states have internal predecessors, (10584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:05,833 INFO L81 ComplementDD]: Finished complementDD. Result has 63 states, 63 states have (on average 168.0) internal successors, (10584), 63 states have internal predecessors, (10584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:05,834 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 1284 predicate places. [2023-12-09 15:16:05,834 INFO L500 AbstractCegarLoop]: Abstraction has has 1437 places, 3524 transitions, 286962 flow [2023-12-09 15:16:05,834 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:05,834 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:16:05,834 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:16:05,834 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-09 15:16:05,834 INFO L425 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:16:05,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:16:05,835 INFO L85 PathProgramCache]: Analyzing trace with hash -713689612, now seen corresponding path program 13 times [2023-12-09 15:16:05,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:16:05,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037775114] [2023-12-09 15:16:05,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:16:05,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:16:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:16:06,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:16:06,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:16:06,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037775114] [2023-12-09 15:16:06,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037775114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:16:06,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:16:06,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-09 15:16:06,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735859524] [2023-12-09 15:16:06,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:16:06,292 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 15:16:06,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:16:06,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 15:16:06,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2023-12-09 15:16:06,294 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 168 [2023-12-09 15:16:06,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1437 places, 3524 transitions, 286962 flow. Second operand has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:06,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:16:06,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 168 [2023-12-09 15:16:06,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:16:22,744 INFO L124 PetriNetUnfolderBase]: 2051/7728 cut-off events. [2023-12-09 15:16:22,744 INFO L125 PetriNetUnfolderBase]: For 1164545/1180151 co-relation queries the response was YES. [2023-12-09 15:16:22,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219580 conditions, 7728 events. 2051/7728 cut-off events. For 1164545/1180151 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 74756 event pairs, 275 based on Foata normal form. 38/7574 useless extension candidates. Maximal degree in co-relation 139487. Up to 4554 conditions per place. [2023-12-09 15:16:22,860 INFO L140 encePairwiseOnDemand]: 130/168 looper letters, 736 selfloop transitions, 168 changer transitions 2587/3579 dead transitions. [2023-12-09 15:16:22,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1484 places, 3579 transitions, 298598 flow [2023-12-09 15:16:22,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-09 15:16:22,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-12-09 15:16:22,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 4578 transitions. [2023-12-09 15:16:22,863 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5677083333333334 [2023-12-09 15:16:22,863 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 4578 transitions. [2023-12-09 15:16:22,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 4578 transitions. [2023-12-09 15:16:22,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:16:22,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 4578 transitions. [2023-12-09 15:16:22,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 95.375) internal successors, (4578), 48 states have internal predecessors, (4578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:22,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 168.0) internal successors, (8232), 49 states have internal predecessors, (8232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:22,871 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 168.0) internal successors, (8232), 49 states have internal predecessors, (8232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:22,871 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 1331 predicate places. [2023-12-09 15:16:22,871 INFO L500 AbstractCegarLoop]: Abstraction has has 1484 places, 3579 transitions, 298598 flow [2023-12-09 15:16:22,871 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:22,872 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:16:22,872 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:16:22,872 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-09 15:16:22,872 INFO L425 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:16:22,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:16:22,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1198514536, now seen corresponding path program 14 times [2023-12-09 15:16:22,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:16:22,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688969345] [2023-12-09 15:16:22,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:16:22,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:16:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:16:23,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:16:23,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:16:23,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688969345] [2023-12-09 15:16:23,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688969345] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:16:23,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:16:23,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-09 15:16:23,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541597942] [2023-12-09 15:16:23,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:16:23,529 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 15:16:23,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:16:23,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 15:16:23,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2023-12-09 15:16:23,531 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 168 [2023-12-09 15:16:23,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1484 places, 3579 transitions, 298598 flow. Second operand has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:23,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:16:23,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 168 [2023-12-09 15:16:23,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:16:40,498 INFO L124 PetriNetUnfolderBase]: 2062/7839 cut-off events. [2023-12-09 15:16:40,499 INFO L125 PetriNetUnfolderBase]: For 1208394/1225431 co-relation queries the response was YES. [2023-12-09 15:16:40,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227512 conditions, 7839 events. 2062/7839 cut-off events. For 1208394/1225431 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 75959 event pairs, 290 based on Foata normal form. 29/7670 useless extension candidates. Maximal degree in co-relation 144471. Up to 4602 conditions per place. [2023-12-09 15:16:40,611 INFO L140 encePairwiseOnDemand]: 130/168 looper letters, 729 selfloop transitions, 166 changer transitions 2643/3626 dead transitions. [2023-12-09 15:16:40,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1527 places, 3626 transitions, 309689 flow [2023-12-09 15:16:40,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-12-09 15:16:40,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2023-12-09 15:16:40,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 4207 transitions. [2023-12-09 15:16:40,613 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5691287878787878 [2023-12-09 15:16:40,613 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 4207 transitions. [2023-12-09 15:16:40,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 4207 transitions. [2023-12-09 15:16:40,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:16:40,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 4207 transitions. [2023-12-09 15:16:40,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 95.61363636363636) internal successors, (4207), 44 states have internal predecessors, (4207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:40,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 168.0) internal successors, (7560), 45 states have internal predecessors, (7560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:40,620 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 168.0) internal successors, (7560), 45 states have internal predecessors, (7560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:40,620 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 1374 predicate places. [2023-12-09 15:16:40,620 INFO L500 AbstractCegarLoop]: Abstraction has has 1527 places, 3626 transitions, 309689 flow [2023-12-09 15:16:40,620 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:40,621 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:16:40,621 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:16:40,621 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-09 15:16:40,621 INFO L425 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:16:40,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:16:40,621 INFO L85 PathProgramCache]: Analyzing trace with hash 435630890, now seen corresponding path program 15 times [2023-12-09 15:16:40,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:16:40,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017426358] [2023-12-09 15:16:40,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:16:40,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:16:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:16:41,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:16:41,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:16:41,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017426358] [2023-12-09 15:16:41,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017426358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:16:41,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:16:41,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-09 15:16:41,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751958235] [2023-12-09 15:16:41,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:16:41,078 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 15:16:41,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:16:41,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 15:16:41,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2023-12-09 15:16:41,080 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 168 [2023-12-09 15:16:41,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1527 places, 3626 transitions, 309689 flow. Second operand has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:41,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:16:41,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 168 [2023-12-09 15:16:41,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:16:58,513 INFO L124 PetriNetUnfolderBase]: 2081/7805 cut-off events. [2023-12-09 15:16:58,514 INFO L125 PetriNetUnfolderBase]: For 1226695/1243073 co-relation queries the response was YES. [2023-12-09 15:16:58,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235059 conditions, 7805 events. 2081/7805 cut-off events. For 1226695/1243073 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 75540 event pairs, 285 based on Foata normal form. 47/7660 useless extension candidates. Maximal degree in co-relation 149246. Up to 4638 conditions per place. [2023-12-09 15:16:58,625 INFO L140 encePairwiseOnDemand]: 130/168 looper letters, 718 selfloop transitions, 148 changer transitions 2706/3660 dead transitions. [2023-12-09 15:16:58,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1570 places, 3660 transitions, 319874 flow [2023-12-09 15:16:58,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-12-09 15:16:58,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2023-12-09 15:16:58,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 4203 transitions. [2023-12-09 15:16:58,628 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5685876623376623 [2023-12-09 15:16:58,628 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 4203 transitions. [2023-12-09 15:16:58,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 4203 transitions. [2023-12-09 15:16:58,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:16:58,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 4203 transitions. [2023-12-09 15:16:58,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 95.52272727272727) internal successors, (4203), 44 states have internal predecessors, (4203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:58,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 168.0) internal successors, (7560), 45 states have internal predecessors, (7560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:58,634 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 168.0) internal successors, (7560), 45 states have internal predecessors, (7560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:58,635 INFO L308 CegarLoopForPetriNet]: 153 programPoint places, 1417 predicate places. [2023-12-09 15:16:58,635 INFO L500 AbstractCegarLoop]: Abstraction has has 1570 places, 3660 transitions, 319874 flow [2023-12-09 15:16:58,635 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:58,635 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:16:58,635 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:16:58,635 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-09 15:16:58,636 INFO L425 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:16:58,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:16:58,636 INFO L85 PathProgramCache]: Analyzing trace with hash 850704672, now seen corresponding path program 16 times [2023-12-09 15:16:58,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:16:58,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890517173] [2023-12-09 15:16:58,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:16:58,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:16:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:16:59,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:16:59,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:16:59,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890517173] [2023-12-09 15:16:59,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890517173] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:16:59,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:16:59,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-09 15:16:59,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337414916] [2023-12-09 15:16:59,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:16:59,267 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 15:16:59,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:16:59,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 15:16:59,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2023-12-09 15:16:59,269 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 168 [2023-12-09 15:16:59,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1570 places, 3660 transitions, 319874 flow. Second operand has 26 states, 26 states have (on average 91.46153846153847) internal successors, (2378), 26 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:16:59,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:16:59,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 168 [2023-12-09 15:16:59,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-12-09 15:17:16,330 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:17:16,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-09 15:17:16,338 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-09 15:17:16,338 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-09 15:17:16,338 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 89/168 universal loopers) in iteration 57,while PetriNetUnfolder was constructing finite prefix that currently has 202750 conditions, 6639 events (1880/6638 cut-off events. For 1102574/1119388 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 65144 event pairs, 294 based on Foata normal form. 37/6685 useless extension candidates. Maximal degree in co-relation 147512. Up to 3940 conditions per place.). [2023-12-09 15:17:16,339 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-12-09 15:17:16,339 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-12-09 15:17:16,340 INFO L457 BasicCegarLoop]: Path program histogram: [16, 15, 15, 11] [2023-12-09 15:17:16,343 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:17:16,343 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:17:16,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:17:16 BasicIcfg [2023-12-09 15:17:16,346 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:17:16,346 INFO L158 Benchmark]: Toolchain (without parser) took 256496.36ms. Allocated memory was 255.9MB in the beginning and 2.8GB in the end (delta: 2.5GB). Free memory was 197.4MB in the beginning and 806.7MB in the end (delta: -609.3MB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-09 15:17:16,346 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 255.9MB. Free memory is still 209.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:17:16,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.53ms. Allocated memory is still 255.9MB. Free memory was 197.4MB in the beginning and 186.1MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-09 15:17:16,347 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.05ms. Allocated memory is still 255.9MB. Free memory was 186.1MB in the beginning and 184.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:17:16,347 INFO L158 Benchmark]: Boogie Preprocessor took 19.87ms. Allocated memory is still 255.9MB. Free memory was 184.0MB in the beginning and 182.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:17:16,348 INFO L158 Benchmark]: RCFGBuilder took 330.66ms. Allocated memory is still 255.9MB. Free memory was 182.5MB in the beginning and 165.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-09 15:17:16,348 INFO L158 Benchmark]: TraceAbstraction took 255915.77ms. Allocated memory was 255.9MB in the beginning and 2.8GB in the end (delta: 2.5GB). Free memory was 165.2MB in the beginning and 806.7MB in the end (delta: -641.5MB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-09 15:17:16,349 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 255.9MB. Free memory is still 209.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 198.53ms. Allocated memory is still 255.9MB. Free memory was 197.4MB in the beginning and 186.1MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.05ms. Allocated memory is still 255.9MB. Free memory was 186.1MB in the beginning and 184.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.87ms. Allocated memory is still 255.9MB. Free memory was 184.0MB in the beginning and 182.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 330.66ms. Allocated memory is still 255.9MB. Free memory was 182.5MB in the beginning and 165.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 255915.77ms. Allocated memory was 255.9MB in the beginning and 2.8GB in the end (delta: 2.5GB). Free memory was 165.2MB in the beginning and 806.7MB in the end (delta: -641.5MB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 89/168 universal loopers) in iteration 57,while PetriNetUnfolder was constructing finite prefix that currently has 202750 conditions, 6639 events (1880/6638 cut-off events. For 1102574/1119388 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 65144 event pairs, 294 based on Foata normal form. 37/6685 useless extension candidates. Maximal degree in co-relation 147512. Up to 3940 conditions per place.). - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 89/168 universal loopers) in iteration 57,while PetriNetUnfolder was constructing finite prefix that currently has 202750 conditions, 6639 events (1880/6638 cut-off events. For 1102574/1119388 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 65144 event pairs, 294 based on Foata normal form. 37/6685 useless extension candidates. Maximal degree in co-relation 147512. Up to 3940 conditions per place.). - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 89/168 universal loopers) in iteration 57,while PetriNetUnfolder was constructing finite prefix that currently has 202750 conditions, 6639 events (1880/6638 cut-off events. For 1102574/1119388 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 65144 event pairs, 294 based on Foata normal form. 37/6685 useless extension candidates. Maximal degree in co-relation 147512. Up to 3940 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 236 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 255.8s, OverallIterations: 57, TraceHistogramMax: 1, PathProgramHistogramMax: 16, EmptinessCheckTime: 0.0s, AutomataDifference: 240.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8140 SdHoareTripleChecker+Valid, 16.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8140 mSDsluCounter, 67206 SdHoareTripleChecker+Invalid, 13.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61371 mSDsCounter, 221 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40825 IncrementalHoareTripleChecker+Invalid, 41046 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 221 mSolverCounterUnsat, 5835 mSDtfsCounter, 40825 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2035 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1893 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17279 ImplicationChecksByTransitivity, 20.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=319874occurred in iteration=56, InterpolantAutomatonStates: 1476, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 14.2s InterpolantComputationTime, 5787 NumberOfCodeBlocks, 5787 NumberOfCodeBlocksAsserted, 57 NumberOfCheckSat, 5730 ConstructedInterpolants, 0 QuantifiedInterpolants, 25043 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 57 InterpolantComputations, 57 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown