/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -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-match-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 20:42:13,524 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 20:42:13,591 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-29 20:42:13,617 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 20:42:13,618 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 20:42:13,618 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 20:42:13,619 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 20:42:13,619 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 20:42:13,619 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 20:42:13,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 20:42:13,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 20:42:13,623 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 20:42:13,623 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 20:42:13,624 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 20:42:13,624 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 20:42:13,624 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 20:42:13,624 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 20:42:13,624 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 20:42:13,624 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 20:42:13,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 20:42:13,625 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 20:42:13,625 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 20:42:13,625 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 20:42:13,625 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 20:42:13,626 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 20:42:13,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 20:42:13,626 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 20:42:13,626 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 20:42:13,626 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 20:42:13,626 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 20:42:13,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 20:42:13,627 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 20:42:13,627 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 20:42:13,627 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 20:42:13,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 20:42:13,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 20:42:13,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 20:42:13,787 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 20:42:13,787 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 20:42:13,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-match-symm.wvr.c [2023-11-29 20:42:14,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 20:42:14,849 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 20:42:14,849 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-symm.wvr.c [2023-11-29 20:42:14,854 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b654846d/4eb98ca5ca1e4f49b2c319cfc344d7b4/FLAG35d5e1867 [2023-11-29 20:42:14,862 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b654846d/4eb98ca5ca1e4f49b2c319cfc344d7b4 [2023-11-29 20:42:14,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 20:42:14,864 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 20:42:14,865 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 20:42:14,865 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 20:42:14,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 20:42:14,868 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:42:14" (1/1) ... [2023-11-29 20:42:14,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@290960e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:14, skipping insertion in model container [2023-11-29 20:42:14,869 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:42:14" (1/1) ... [2023-11-29 20:42:14,885 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 20:42:14,984 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-match-symm.wvr.c[2610,2623] [2023-11-29 20:42:14,988 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 20:42:14,994 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 20:42:15,008 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-match-symm.wvr.c[2610,2623] [2023-11-29 20:42:15,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 20:42:15,021 INFO L206 MainTranslator]: Completed translation [2023-11-29 20:42:15,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:15 WrapperNode [2023-11-29 20:42:15,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 20:42:15,022 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 20:42:15,022 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 20:42:15,023 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 20:42:15,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:15" (1/1) ... [2023-11-29 20:42:15,031 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:15" (1/1) ... [2023-11-29 20:42:15,048 INFO L138 Inliner]: procedures = 22, calls = 27, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 155 [2023-11-29 20:42:15,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 20:42:15,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 20:42:15,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 20:42:15,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 20:42:15,054 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:15" (1/1) ... [2023-11-29 20:42:15,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:15" (1/1) ... [2023-11-29 20:42:15,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:15" (1/1) ... [2023-11-29 20:42:15,057 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:15" (1/1) ... [2023-11-29 20:42:15,063 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:15" (1/1) ... [2023-11-29 20:42:15,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:15" (1/1) ... [2023-11-29 20:42:15,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:15" (1/1) ... [2023-11-29 20:42:15,066 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:15" (1/1) ... [2023-11-29 20:42:15,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 20:42:15,069 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 20:42:15,069 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 20:42:15,069 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 20:42:15,069 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:15" (1/1) ... [2023-11-29 20:42:15,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 20:42:15,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:42:15,091 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-29 20:42:15,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-29 20:42:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 20:42:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 20:42:15,130 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 20:42:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 20:42:15,130 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 20:42:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 20:42:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 20:42:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 20:42:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 20:42:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 20:42:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 20:42:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 20:42:15,132 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 20:42:15,198 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 20:42:15,200 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 20:42:15,410 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 20:42:15,420 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 20:42:15,420 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 20:42:15,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:42:15 BoogieIcfgContainer [2023-11-29 20:42:15,421 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 20:42:15,422 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 20:42:15,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 20:42:15,424 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 20:42:15,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:42:14" (1/3) ... [2023-11-29 20:42:15,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2abc04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:42:15, skipping insertion in model container [2023-11-29 20:42:15,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:15" (2/3) ... [2023-11-29 20:42:15,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2abc04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:42:15, skipping insertion in model container [2023-11-29 20:42:15,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:42:15" (3/3) ... [2023-11-29 20:42:15,426 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-symm.wvr.c [2023-11-29 20:42:15,438 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 20:42:15,438 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 20:42:15,438 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 20:42:15,503 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 20:42:15,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 212 places, 216 transitions, 446 flow [2023-11-29 20:42:15,605 INFO L124 PetriNetUnfolderBase]: 11/214 cut-off events. [2023-11-29 20:42:15,605 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 20:42:15,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 214 events. 11/214 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 163 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 131. Up to 2 conditions per place. [2023-11-29 20:42:15,615 INFO L82 GeneralOperation]: Start removeDead. Operand has 212 places, 216 transitions, 446 flow [2023-11-29 20:42:15,618 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 201 places, 205 transitions, 422 flow [2023-11-29 20:42:15,624 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 20:42:15,628 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;@3c5b1064, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 20:42:15,629 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-29 20:42:15,660 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 20:42:15,660 INFO L124 PetriNetUnfolderBase]: 11/204 cut-off events. [2023-11-29 20:42:15,661 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 20:42:15,661 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:42:15,661 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:42:15,662 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:42:15,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:42:15,665 INFO L85 PathProgramCache]: Analyzing trace with hash 582547447, now seen corresponding path program 1 times [2023-11-29 20:42:15,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:42:15,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52316689] [2023-11-29 20:42:15,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:42:15,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:42:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:42:19,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:42:19,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:42:19,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52316689] [2023-11-29 20:42:19,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52316689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:42:19,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:42:19,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:42:19,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432821717] [2023-11-29 20:42:19,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:42:19,145 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:42:19,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:42:19,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:42:19,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:42:19,181 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:42:19,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 205 transitions, 422 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:19,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:42:19,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:42:19,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:42:27,349 INFO L124 PetriNetUnfolderBase]: 926/2919 cut-off events. [2023-11-29 20:42:27,349 INFO L125 PetriNetUnfolderBase]: For 214/214 co-relation queries the response was YES. [2023-11-29 20:42:27,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5045 conditions, 2919 events. 926/2919 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 19344 event pairs, 18 based on Foata normal form. 253/3025 useless extension candidates. Maximal degree in co-relation 4682. Up to 183 conditions per place. [2023-11-29 20:42:27,361 INFO L140 encePairwiseOnDemand]: 153/216 looper letters, 672 selfloop transitions, 20 changer transitions 75/861 dead transitions. [2023-11-29 20:42:27,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 861 transitions, 3385 flow [2023-11-29 20:42:27,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-11-29 20:42:27,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2023-11-29 20:42:27,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 6534 transitions. [2023-11-29 20:42:27,381 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5707547169811321 [2023-11-29 20:42:27,382 INFO L72 ComplementDD]: Start complementDD. Operand 53 states and 6534 transitions. [2023-11-29 20:42:27,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 6534 transitions. [2023-11-29 20:42:27,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:42:27,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 53 states and 6534 transitions. [2023-11-29 20:42:27,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 54 states, 53 states have (on average 123.28301886792453) internal successors, (6534), 53 states have internal predecessors, (6534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:27,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 54 states, 54 states have (on average 216.0) internal successors, (11664), 54 states have internal predecessors, (11664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:27,425 INFO L81 ComplementDD]: Finished complementDD. Result has 54 states, 54 states have (on average 216.0) internal successors, (11664), 54 states have internal predecessors, (11664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:27,430 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 52 predicate places. [2023-11-29 20:42:27,430 INFO L500 AbstractCegarLoop]: Abstraction has has 253 places, 861 transitions, 3385 flow [2023-11-29 20:42:27,432 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:27,432 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:42:27,432 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:42:27,433 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 20:42:27,433 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:42:27,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:42:27,435 INFO L85 PathProgramCache]: Analyzing trace with hash -608085151, now seen corresponding path program 2 times [2023-11-29 20:42:27,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:42:27,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697445710] [2023-11-29 20:42:27,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:42:27,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:42:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:42:29,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:42:29,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:42:29,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697445710] [2023-11-29 20:42:29,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697445710] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:42:29,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:42:29,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:42:29,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765481924] [2023-11-29 20:42:29,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:42:29,353 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:42:29,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:42:29,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:42:29,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1174, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:42:29,359 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:42:29,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 861 transitions, 3385 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:29,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:42:29,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:42:29,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:42:35,300 INFO L124 PetriNetUnfolderBase]: 1010/3052 cut-off events. [2023-11-29 20:42:35,300 INFO L125 PetriNetUnfolderBase]: For 453/549 co-relation queries the response was YES. [2023-11-29 20:42:35,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7612 conditions, 3052 events. 1010/3052 cut-off events. For 453/549 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 19869 event pairs, 4 based on Foata normal form. 14/2947 useless extension candidates. Maximal degree in co-relation 7074. Up to 360 conditions per place. [2023-11-29 20:42:35,315 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 850 selfloop transitions, 352 changer transitions 119/1418 dead transitions. [2023-11-29 20:42:35,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 1418 transitions, 8303 flow [2023-11-29 20:42:35,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-11-29 20:42:35,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2023-11-29 20:42:35,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 6297 transitions. [2023-11-29 20:42:35,324 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5500524109014675 [2023-11-29 20:42:35,324 INFO L72 ComplementDD]: Start complementDD. Operand 53 states and 6297 transitions. [2023-11-29 20:42:35,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 6297 transitions. [2023-11-29 20:42:35,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:42:35,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 53 states and 6297 transitions. [2023-11-29 20:42:35,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 54 states, 53 states have (on average 118.81132075471699) internal successors, (6297), 53 states have internal predecessors, (6297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:35,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 54 states, 54 states have (on average 216.0) internal successors, (11664), 54 states have internal predecessors, (11664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:35,350 INFO L81 ComplementDD]: Finished complementDD. Result has 54 states, 54 states have (on average 216.0) internal successors, (11664), 54 states have internal predecessors, (11664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:35,350 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 104 predicate places. [2023-11-29 20:42:35,350 INFO L500 AbstractCegarLoop]: Abstraction has has 305 places, 1418 transitions, 8303 flow [2023-11-29 20:42:35,352 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:35,352 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:42:35,352 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:42:35,352 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 20:42:35,352 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:42:35,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:42:35,353 INFO L85 PathProgramCache]: Analyzing trace with hash -855871549, now seen corresponding path program 3 times [2023-11-29 20:42:35,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:42:35,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295594631] [2023-11-29 20:42:35,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:42:35,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:42:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:42:36,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:42:36,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:42:36,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295594631] [2023-11-29 20:42:36,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295594631] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:42:36,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:42:36,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:42:36,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216108044] [2023-11-29 20:42:36,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:42:36,852 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:42:36,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:42:36,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:42:36,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:42:36,855 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:42:36,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 1418 transitions, 8303 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:36,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:42:36,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:42:36,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:42:40,385 INFO L124 PetriNetUnfolderBase]: 1316/3982 cut-off events. [2023-11-29 20:42:40,385 INFO L125 PetriNetUnfolderBase]: For 1198/1730 co-relation queries the response was YES. [2023-11-29 20:42:40,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12725 conditions, 3982 events. 1316/3982 cut-off events. For 1198/1730 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 28018 event pairs, 8 based on Foata normal form. 49/3868 useless extension candidates. Maximal degree in co-relation 11974. Up to 1472 conditions per place. [2023-11-29 20:42:40,404 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1358 selfloop transitions, 244 changer transitions 151/1850 dead transitions. [2023-11-29 20:42:40,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 1850 transitions, 14431 flow [2023-11-29 20:42:40,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-11-29 20:42:40,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2023-11-29 20:42:40,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 6546 transitions. [2023-11-29 20:42:40,410 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5316764132553606 [2023-11-29 20:42:40,410 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 6546 transitions. [2023-11-29 20:42:40,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 6546 transitions. [2023-11-29 20:42:40,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:42:40,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 6546 transitions. [2023-11-29 20:42:40,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 114.84210526315789) internal successors, (6546), 57 states have internal predecessors, (6546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:40,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 216.0) internal successors, (12528), 58 states have internal predecessors, (12528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:40,430 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 216.0) internal successors, (12528), 58 states have internal predecessors, (12528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:40,430 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 160 predicate places. [2023-11-29 20:42:40,430 INFO L500 AbstractCegarLoop]: Abstraction has has 361 places, 1850 transitions, 14431 flow [2023-11-29 20:42:40,431 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:40,431 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:42:40,432 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:42:40,432 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 20:42:40,432 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:42:40,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:42:40,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1400427301, now seen corresponding path program 4 times [2023-11-29 20:42:40,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:42:40,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184086288] [2023-11-29 20:42:40,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:42:40,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:42:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:42:41,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:42:41,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:42:41,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184086288] [2023-11-29 20:42:41,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184086288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:42:41,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:42:41,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:42:41,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893006182] [2023-11-29 20:42:41,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:42:41,808 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:42:41,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:42:41,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:42:41,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:42:41,811 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:42:41,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 1850 transitions, 14431 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:41,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:42:41,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:42:41,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:42:45,558 INFO L124 PetriNetUnfolderBase]: 1407/4256 cut-off events. [2023-11-29 20:42:45,559 INFO L125 PetriNetUnfolderBase]: For 2354/3394 co-relation queries the response was YES. [2023-11-29 20:42:45,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16764 conditions, 4256 events. 1407/4256 cut-off events. For 2354/3394 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 30080 event pairs, 8 based on Foata normal form. 79/4166 useless extension candidates. Maximal degree in co-relation 15762. Up to 1668 conditions per place. [2023-11-29 20:42:45,580 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1441 selfloop transitions, 277 changer transitions 183/1998 dead transitions. [2023-11-29 20:42:45,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 1998 transitions, 19441 flow [2023-11-29 20:42:45,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-11-29 20:42:45,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2023-11-29 20:42:45,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 7103 transitions. [2023-11-29 20:42:45,585 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5303912783751493 [2023-11-29 20:42:45,585 INFO L72 ComplementDD]: Start complementDD. Operand 62 states and 7103 transitions. [2023-11-29 20:42:45,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 7103 transitions. [2023-11-29 20:42:45,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:42:45,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 62 states and 7103 transitions. [2023-11-29 20:42:45,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 63 states, 62 states have (on average 114.56451612903226) internal successors, (7103), 62 states have internal predecessors, (7103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:45,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 63 states, 63 states have (on average 216.0) internal successors, (13608), 63 states have internal predecessors, (13608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:45,605 INFO L81 ComplementDD]: Finished complementDD. Result has 63 states, 63 states have (on average 216.0) internal successors, (13608), 63 states have internal predecessors, (13608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:45,606 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 221 predicate places. [2023-11-29 20:42:45,606 INFO L500 AbstractCegarLoop]: Abstraction has has 422 places, 1998 transitions, 19441 flow [2023-11-29 20:42:45,607 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:45,607 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:42:45,607 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:42:45,607 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 20:42:45,607 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:42:45,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:42:45,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1793538977, now seen corresponding path program 5 times [2023-11-29 20:42:45,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:42:45,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624075896] [2023-11-29 20:42:45,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:42:45,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:42:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:42:46,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:42:46,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:42:46,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624075896] [2023-11-29 20:42:46,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624075896] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:42:46,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:42:46,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:42:46,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903062674] [2023-11-29 20:42:46,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:42:46,823 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:42:46,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:42:46,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:42:46,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:42:46,826 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:42:46,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 1998 transitions, 19441 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:46,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:42:46,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:42:46,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:42:50,929 INFO L124 PetriNetUnfolderBase]: 1498/4579 cut-off events. [2023-11-29 20:42:50,929 INFO L125 PetriNetUnfolderBase]: For 3964/5314 co-relation queries the response was YES. [2023-11-29 20:42:50,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21443 conditions, 4579 events. 1498/4579 cut-off events. For 3964/5314 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 32792 event pairs, 6 based on Foata normal form. 73/4476 useless extension candidates. Maximal degree in co-relation 20017. Up to 1885 conditions per place. [2023-11-29 20:42:50,955 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1554 selfloop transitions, 315 changer transitions 218/2184 dead transitions. [2023-11-29 20:42:50,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 2184 transitions, 25514 flow [2023-11-29 20:42:50,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-11-29 20:42:50,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2023-11-29 20:42:50,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 7575 transitions. [2023-11-29 20:42:50,960 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5313552188552189 [2023-11-29 20:42:50,960 INFO L72 ComplementDD]: Start complementDD. Operand 66 states and 7575 transitions. [2023-11-29 20:42:50,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 7575 transitions. [2023-11-29 20:42:50,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:42:50,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 66 states and 7575 transitions. [2023-11-29 20:42:50,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 67 states, 66 states have (on average 114.77272727272727) internal successors, (7575), 66 states have internal predecessors, (7575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:50,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 67 states, 67 states have (on average 216.0) internal successors, (14472), 67 states have internal predecessors, (14472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:50,980 INFO L81 ComplementDD]: Finished complementDD. Result has 67 states, 67 states have (on average 216.0) internal successors, (14472), 67 states have internal predecessors, (14472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:50,981 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 286 predicate places. [2023-11-29 20:42:50,981 INFO L500 AbstractCegarLoop]: Abstraction has has 487 places, 2184 transitions, 25514 flow [2023-11-29 20:42:50,982 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:50,982 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:42:50,982 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:42:50,982 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 20:42:50,982 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:42:50,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:42:50,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1332032549, now seen corresponding path program 6 times [2023-11-29 20:42:50,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:42:50,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060873431] [2023-11-29 20:42:50,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:42:50,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:42:51,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:42:52,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:42:52,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:42:52,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060873431] [2023-11-29 20:42:52,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060873431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:42:52,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:42:52,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:42:52,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000519167] [2023-11-29 20:42:52,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:42:52,403 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:42:52,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:42:52,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:42:52,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:42:52,405 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:42:52,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 487 places, 2184 transitions, 25514 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:52,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:42:52,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:42:52,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:42:56,768 INFO L124 PetriNetUnfolderBase]: 1504/4619 cut-off events. [2023-11-29 20:42:56,768 INFO L125 PetriNetUnfolderBase]: For 6017/8015 co-relation queries the response was YES. [2023-11-29 20:42:56,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25076 conditions, 4619 events. 1504/4619 cut-off events. For 6017/8015 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 33222 event pairs, 9 based on Foata normal form. 73/4514 useless extension candidates. Maximal degree in co-relation 23301. Up to 1923 conditions per place. [2023-11-29 20:42:56,794 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1575 selfloop transitions, 291 changer transitions 254/2217 dead transitions. [2023-11-29 20:42:56,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 2217 transitions, 30174 flow [2023-11-29 20:42:56,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-11-29 20:42:56,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2023-11-29 20:42:56,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 5995 transitions. [2023-11-29 20:42:56,799 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5337428774928775 [2023-11-29 20:42:56,799 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 5995 transitions. [2023-11-29 20:42:56,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 5995 transitions. [2023-11-29 20:42:56,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:42:56,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 5995 transitions. [2023-11-29 20:42:56,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 115.28846153846153) internal successors, (5995), 52 states have internal predecessors, (5995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:56,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 216.0) internal successors, (11448), 53 states have internal predecessors, (11448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:56,811 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 216.0) internal successors, (11448), 53 states have internal predecessors, (11448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:56,812 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 337 predicate places. [2023-11-29 20:42:56,812 INFO L500 AbstractCegarLoop]: Abstraction has has 538 places, 2217 transitions, 30174 flow [2023-11-29 20:42:56,813 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:56,813 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:42:56,813 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:42:56,813 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 20:42:56,813 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:42:56,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:42:56,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1429988515, now seen corresponding path program 7 times [2023-11-29 20:42:56,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:42:56,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072936300] [2023-11-29 20:42:56,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:42:56,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:42:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:42:58,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:42:58,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:42:58,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072936300] [2023-11-29 20:42:58,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072936300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:42:58,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:42:58,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:42:58,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994185527] [2023-11-29 20:42:58,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:42:58,109 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:42:58,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:42:58,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:42:58,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:42:58,112 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:42:58,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 2217 transitions, 30174 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:42:58,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:42:58,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:42:58,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:43:02,170 INFO L124 PetriNetUnfolderBase]: 1530/4721 cut-off events. [2023-11-29 20:43:02,170 INFO L125 PetriNetUnfolderBase]: For 8427/10579 co-relation queries the response was YES. [2023-11-29 20:43:02,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29380 conditions, 4721 events. 1530/4721 cut-off events. For 8427/10579 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 34192 event pairs, 13 based on Foata normal form. 99/4644 useless extension candidates. Maximal degree in co-relation 25380. Up to 2032 conditions per place. [2023-11-29 20:43:02,198 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1618 selfloop transitions, 303 changer transitions 289/2307 dead transitions. [2023-11-29 20:43:02,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 2307 transitions, 35893 flow [2023-11-29 20:43:02,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-11-29 20:43:02,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2023-11-29 20:43:02,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 6567 transitions. [2023-11-29 20:43:02,203 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5333820662768031 [2023-11-29 20:43:02,203 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 6567 transitions. [2023-11-29 20:43:02,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 6567 transitions. [2023-11-29 20:43:02,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:43:02,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 6567 transitions. [2023-11-29 20:43:02,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 115.21052631578948) internal successors, (6567), 57 states have internal predecessors, (6567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:02,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 216.0) internal successors, (12528), 58 states have internal predecessors, (12528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:02,225 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 216.0) internal successors, (12528), 58 states have internal predecessors, (12528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:02,227 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 393 predicate places. [2023-11-29 20:43:02,227 INFO L500 AbstractCegarLoop]: Abstraction has has 594 places, 2307 transitions, 35893 flow [2023-11-29 20:43:02,228 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:02,228 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:43:02,228 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:43:02,228 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 20:43:02,228 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:43:02,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:43:02,229 INFO L85 PathProgramCache]: Analyzing trace with hash -726485639, now seen corresponding path program 8 times [2023-11-29 20:43:02,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:43:02,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643375481] [2023-11-29 20:43:02,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:43:02,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:43:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:43:03,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:43:03,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:43:03,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643375481] [2023-11-29 20:43:03,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643375481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:43:03,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:43:03,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:43:03,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522696422] [2023-11-29 20:43:03,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:43:03,553 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:43:03,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:43:03,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:43:03,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:43:03,555 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:43:03,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 2307 transitions, 35893 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:03,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:43:03,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:43:03,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:43:08,069 INFO L124 PetriNetUnfolderBase]: 1530/4769 cut-off events. [2023-11-29 20:43:08,069 INFO L125 PetriNetUnfolderBase]: For 11160/13512 co-relation queries the response was YES. [2023-11-29 20:43:08,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33109 conditions, 4769 events. 1530/4769 cut-off events. For 11160/13512 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 34759 event pairs, 8 based on Foata normal form. 94/4681 useless extension candidates. Maximal degree in co-relation 28450. Up to 2052 conditions per place. [2023-11-29 20:43:08,097 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1614 selfloop transitions, 296 changer transitions 323/2330 dead transitions. [2023-11-29 20:43:08,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 650 places, 2330 transitions, 40739 flow [2023-11-29 20:43:08,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-11-29 20:43:08,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2023-11-29 20:43:08,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 6588 transitions. [2023-11-29 20:43:08,102 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5350877192982456 [2023-11-29 20:43:08,102 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 6588 transitions. [2023-11-29 20:43:08,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 6588 transitions. [2023-11-29 20:43:08,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:43:08,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 6588 transitions. [2023-11-29 20:43:08,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 115.57894736842105) internal successors, (6588), 57 states have internal predecessors, (6588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:08,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 216.0) internal successors, (12528), 58 states have internal predecessors, (12528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:08,114 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 216.0) internal successors, (12528), 58 states have internal predecessors, (12528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:08,115 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 449 predicate places. [2023-11-29 20:43:08,115 INFO L500 AbstractCegarLoop]: Abstraction has has 650 places, 2330 transitions, 40739 flow [2023-11-29 20:43:08,115 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:08,115 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:43:08,115 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:43:08,116 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 20:43:08,116 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:43:08,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:43:08,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1947836909, now seen corresponding path program 9 times [2023-11-29 20:43:08,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:43:08,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137898389] [2023-11-29 20:43:08,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:43:08,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:43:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:43:09,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:43:09,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:43:09,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137898389] [2023-11-29 20:43:09,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137898389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:43:09,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:43:09,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:43:09,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053583500] [2023-11-29 20:43:09,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:43:09,373 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:43:09,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:43:09,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:43:09,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:43:09,375 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:43:09,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 650 places, 2330 transitions, 40739 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:09,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:43:09,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:43:09,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:43:13,403 INFO L124 PetriNetUnfolderBase]: 1529/4814 cut-off events. [2023-11-29 20:43:13,403 INFO L125 PetriNetUnfolderBase]: For 14527/17503 co-relation queries the response was YES. [2023-11-29 20:43:13,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36853 conditions, 4814 events. 1529/4814 cut-off events. For 14527/17503 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 35048 event pairs, 13 based on Foata normal form. 80/4707 useless extension candidates. Maximal degree in co-relation 31506. Up to 2069 conditions per place. [2023-11-29 20:43:13,432 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1606 selfloop transitions, 301 changer transitions 349/2353 dead transitions. [2023-11-29 20:43:13,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 706 places, 2353 transitions, 45674 flow [2023-11-29 20:43:13,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-11-29 20:43:13,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2023-11-29 20:43:13,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 6582 transitions. [2023-11-29 20:43:13,437 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5346003898635477 [2023-11-29 20:43:13,437 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 6582 transitions. [2023-11-29 20:43:13,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 6582 transitions. [2023-11-29 20:43:13,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:43:13,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 6582 transitions. [2023-11-29 20:43:13,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 115.47368421052632) internal successors, (6582), 57 states have internal predecessors, (6582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:13,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 216.0) internal successors, (12528), 58 states have internal predecessors, (12528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:13,450 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 216.0) internal successors, (12528), 58 states have internal predecessors, (12528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:13,450 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 505 predicate places. [2023-11-29 20:43:13,451 INFO L500 AbstractCegarLoop]: Abstraction has has 706 places, 2353 transitions, 45674 flow [2023-11-29 20:43:13,451 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:13,451 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:43:13,451 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:43:13,451 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 20:43:13,452 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:43:13,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:43:13,452 INFO L85 PathProgramCache]: Analyzing trace with hash 841132403, now seen corresponding path program 10 times [2023-11-29 20:43:13,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:43:13,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63140779] [2023-11-29 20:43:13,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:43:13,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:43:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:43:14,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:43:14,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:43:14,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63140779] [2023-11-29 20:43:14,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63140779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:43:14,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:43:14,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:43:14,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317707950] [2023-11-29 20:43:14,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:43:14,643 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:43:14,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:43:14,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:43:14,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:43:14,646 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:43:14,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 706 places, 2353 transitions, 45674 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:14,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:43:14,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:43:14,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:43:18,624 INFO L124 PetriNetUnfolderBase]: 1529/4830 cut-off events. [2023-11-29 20:43:18,624 INFO L125 PetriNetUnfolderBase]: For 19626/24110 co-relation queries the response was YES. [2023-11-29 20:43:18,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40376 conditions, 4830 events. 1529/4830 cut-off events. For 19626/24110 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 35324 event pairs, 12 based on Foata normal form. 77/4720 useless extension candidates. Maximal degree in co-relation 34564. Up to 2066 conditions per place. [2023-11-29 20:43:18,651 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1572 selfloop transitions, 288 changer transitions 396/2353 dead transitions. [2023-11-29 20:43:18,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 760 places, 2353 transitions, 50189 flow [2023-11-29 20:43:18,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-11-29 20:43:18,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2023-11-29 20:43:18,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 6345 transitions. [2023-11-29 20:43:18,655 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5340909090909091 [2023-11-29 20:43:18,655 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 6345 transitions. [2023-11-29 20:43:18,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 6345 transitions. [2023-11-29 20:43:18,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:43:18,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 6345 transitions. [2023-11-29 20:43:18,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 56 states, 55 states have (on average 115.36363636363636) internal successors, (6345), 55 states have internal predecessors, (6345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:18,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 56 states, 56 states have (on average 216.0) internal successors, (12096), 56 states have internal predecessors, (12096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:18,667 INFO L81 ComplementDD]: Finished complementDD. Result has 56 states, 56 states have (on average 216.0) internal successors, (12096), 56 states have internal predecessors, (12096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:18,667 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 559 predicate places. [2023-11-29 20:43:18,667 INFO L500 AbstractCegarLoop]: Abstraction has has 760 places, 2353 transitions, 50189 flow [2023-11-29 20:43:18,668 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:18,668 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:43:18,668 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:43:18,668 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 20:43:18,668 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:43:18,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:43:18,669 INFO L85 PathProgramCache]: Analyzing trace with hash 241484237, now seen corresponding path program 11 times [2023-11-29 20:43:18,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:43:18,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682671341] [2023-11-29 20:43:18,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:43:18,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:43:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:43:19,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:43:19,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:43:19,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682671341] [2023-11-29 20:43:19,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682671341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:43:19,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:43:19,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:43:19,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016645137] [2023-11-29 20:43:19,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:43:19,728 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:43:19,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:43:19,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:43:19,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:43:19,730 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:43:19,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 760 places, 2353 transitions, 50189 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:19,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:43:19,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:43:19,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:43:24,077 INFO L124 PetriNetUnfolderBase]: 1533/4920 cut-off events. [2023-11-29 20:43:24,078 INFO L125 PetriNetUnfolderBase]: For 23668/28196 co-relation queries the response was YES. [2023-11-29 20:43:24,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44655 conditions, 4920 events. 1533/4920 cut-off events. For 23668/28196 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 36446 event pairs, 4 based on Foata normal form. 72/4800 useless extension candidates. Maximal degree in co-relation 37760. Up to 2119 conditions per place. [2023-11-29 20:43:24,114 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1581 selfloop transitions, 312 changer transitions 423/2413 dead transitions. [2023-11-29 20:43:24,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 820 places, 2413 transitions, 56156 flow [2023-11-29 20:43:24,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-11-29 20:43:24,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2023-11-29 20:43:24,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 7008 transitions. [2023-11-29 20:43:24,118 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5318761384335154 [2023-11-29 20:43:24,118 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 7008 transitions. [2023-11-29 20:43:24,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 7008 transitions. [2023-11-29 20:43:24,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:43:24,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 7008 transitions. [2023-11-29 20:43:24,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 62 states, 61 states have (on average 114.88524590163935) internal successors, (7008), 61 states have internal predecessors, (7008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:24,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 62 states, 62 states have (on average 216.0) internal successors, (13392), 62 states have internal predecessors, (13392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:24,131 INFO L81 ComplementDD]: Finished complementDD. Result has 62 states, 62 states have (on average 216.0) internal successors, (13392), 62 states have internal predecessors, (13392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:24,131 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 619 predicate places. [2023-11-29 20:43:24,132 INFO L500 AbstractCegarLoop]: Abstraction has has 820 places, 2413 transitions, 56156 flow [2023-11-29 20:43:24,132 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:24,132 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:43:24,132 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:43:24,132 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 20:43:24,132 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:43:24,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:43:24,133 INFO L85 PathProgramCache]: Analyzing trace with hash -419728245, now seen corresponding path program 12 times [2023-11-29 20:43:24,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:43:24,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993256886] [2023-11-29 20:43:24,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:43:24,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:43:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:43:25,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:43:25,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:43:25,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993256886] [2023-11-29 20:43:25,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993256886] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:43:25,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:43:25,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:43:25,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529144635] [2023-11-29 20:43:25,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:43:25,335 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:43:25,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:43:25,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:43:25,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:43:25,338 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:43:25,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 820 places, 2413 transitions, 56156 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:25,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:43:25,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:43:25,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:43:30,296 INFO L124 PetriNetUnfolderBase]: 1534/4951 cut-off events. [2023-11-29 20:43:30,296 INFO L125 PetriNetUnfolderBase]: For 27729/31943 co-relation queries the response was YES. [2023-11-29 20:43:30,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48908 conditions, 4951 events. 1534/4951 cut-off events. For 27729/31943 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 36592 event pairs, 3 based on Foata normal form. 85/4845 useless extension candidates. Maximal degree in co-relation 43663. Up to 2165 conditions per place. [2023-11-29 20:43:30,334 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1600 selfloop transitions, 314 changer transitions 452/2463 dead transitions. [2023-11-29 20:43:30,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 885 places, 2463 transitions, 62103 flow [2023-11-29 20:43:30,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-11-29 20:43:30,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2023-11-29 20:43:30,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 7577 transitions. [2023-11-29 20:43:30,340 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5314955106621774 [2023-11-29 20:43:30,340 INFO L72 ComplementDD]: Start complementDD. Operand 66 states and 7577 transitions. [2023-11-29 20:43:30,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 7577 transitions. [2023-11-29 20:43:30,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:43:30,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 66 states and 7577 transitions. [2023-11-29 20:43:30,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 67 states, 66 states have (on average 114.8030303030303) internal successors, (7577), 66 states have internal predecessors, (7577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:30,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 67 states, 67 states have (on average 216.0) internal successors, (14472), 67 states have internal predecessors, (14472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:30,356 INFO L81 ComplementDD]: Finished complementDD. Result has 67 states, 67 states have (on average 216.0) internal successors, (14472), 67 states have internal predecessors, (14472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:30,356 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 684 predicate places. [2023-11-29 20:43:30,357 INFO L500 AbstractCegarLoop]: Abstraction has has 885 places, 2463 transitions, 62103 flow [2023-11-29 20:43:30,357 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:30,357 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:43:30,357 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:43:30,357 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 20:43:30,358 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:43:30,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:43:30,358 INFO L85 PathProgramCache]: Analyzing trace with hash -99332661, now seen corresponding path program 13 times [2023-11-29 20:43:30,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:43:30,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176368303] [2023-11-29 20:43:30,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:43:30,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:43:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:43:31,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:43:31,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:43:31,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176368303] [2023-11-29 20:43:31,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176368303] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:43:31,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:43:31,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:43:31,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167536678] [2023-11-29 20:43:31,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:43:31,475 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:43:31,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:43:31,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:43:31,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:43:31,478 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:43:31,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 885 places, 2463 transitions, 62103 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:31,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:43:31,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:43:31,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:43:36,132 INFO L124 PetriNetUnfolderBase]: 1534/4977 cut-off events. [2023-11-29 20:43:36,133 INFO L125 PetriNetUnfolderBase]: For 34047/39987 co-relation queries the response was YES. [2023-11-29 20:43:36,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52540 conditions, 4977 events. 1534/4977 cut-off events. For 34047/39987 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 36836 event pairs, 5 based on Foata normal form. 65/4841 useless extension candidates. Maximal degree in co-relation 46947. Up to 2162 conditions per place. [2023-11-29 20:43:36,172 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1574 selfloop transitions, 299 changer transitions 493/2463 dead transitions. [2023-11-29 20:43:36,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 949 places, 2463 transitions, 66838 flow [2023-11-29 20:43:36,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-11-29 20:43:36,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2023-11-29 20:43:36,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 7447 transitions. [2023-11-29 20:43:36,176 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5304131054131054 [2023-11-29 20:43:36,176 INFO L72 ComplementDD]: Start complementDD. Operand 65 states and 7447 transitions. [2023-11-29 20:43:36,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 7447 transitions. [2023-11-29 20:43:36,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:43:36,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 65 states and 7447 transitions. [2023-11-29 20:43:36,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 66 states, 65 states have (on average 114.56923076923077) internal successors, (7447), 65 states have internal predecessors, (7447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:36,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 66 states, 66 states have (on average 216.0) internal successors, (14256), 66 states have internal predecessors, (14256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:36,188 INFO L81 ComplementDD]: Finished complementDD. Result has 66 states, 66 states have (on average 216.0) internal successors, (14256), 66 states have internal predecessors, (14256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:36,189 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 748 predicate places. [2023-11-29 20:43:36,189 INFO L500 AbstractCegarLoop]: Abstraction has has 949 places, 2463 transitions, 66838 flow [2023-11-29 20:43:36,189 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:36,189 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:43:36,189 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:43:36,189 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 20:43:36,190 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:43:36,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:43:36,190 INFO L85 PathProgramCache]: Analyzing trace with hash 351473197, now seen corresponding path program 14 times [2023-11-29 20:43:36,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:43:36,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765120000] [2023-11-29 20:43:36,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:43:36,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:43:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:43:37,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:43:37,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:43:37,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765120000] [2023-11-29 20:43:37,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765120000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:43:37,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:43:37,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:43:37,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626644679] [2023-11-29 20:43:37,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:43:37,389 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:43:37,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:43:37,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:43:37,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:43:37,392 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:43:37,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 949 places, 2463 transitions, 66838 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:37,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:43:37,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:43:37,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:43:41,663 INFO L124 PetriNetUnfolderBase]: 1533/4962 cut-off events. [2023-11-29 20:43:41,663 INFO L125 PetriNetUnfolderBase]: For 37509/42696 co-relation queries the response was YES. [2023-11-29 20:43:41,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56477 conditions, 4962 events. 1533/4962 cut-off events. For 37509/42696 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 36776 event pairs, 11 based on Foata normal form. 87/4855 useless extension candidates. Maximal degree in co-relation 50209. Up to 2181 conditions per place. [2023-11-29 20:43:41,705 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1567 selfloop transitions, 305 changer transitions 522/2491 dead transitions. [2023-11-29 20:43:41,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1008 places, 2491 transitions, 72416 flow [2023-11-29 20:43:41,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-11-29 20:43:41,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2023-11-29 20:43:41,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 6876 transitions. [2023-11-29 20:43:41,709 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5305555555555556 [2023-11-29 20:43:41,709 INFO L72 ComplementDD]: Start complementDD. Operand 60 states and 6876 transitions. [2023-11-29 20:43:41,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 6876 transitions. [2023-11-29 20:43:41,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:43:41,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 60 states and 6876 transitions. [2023-11-29 20:43:41,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 61 states, 60 states have (on average 114.6) internal successors, (6876), 60 states have internal predecessors, (6876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:41,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 61 states, 61 states have (on average 216.0) internal successors, (13176), 61 states have internal predecessors, (13176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:41,719 INFO L81 ComplementDD]: Finished complementDD. Result has 61 states, 61 states have (on average 216.0) internal successors, (13176), 61 states have internal predecessors, (13176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:41,720 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 807 predicate places. [2023-11-29 20:43:41,720 INFO L500 AbstractCegarLoop]: Abstraction has has 1008 places, 2491 transitions, 72416 flow [2023-11-29 20:43:41,720 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:41,720 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:43:41,720 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:43:41,720 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 20:43:41,721 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:43:41,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:43:41,721 INFO L85 PathProgramCache]: Analyzing trace with hash -98165519, now seen corresponding path program 15 times [2023-11-29 20:43:41,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:43:41,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663372929] [2023-11-29 20:43:41,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:43:41,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:43:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:43:42,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:43:42,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:43:42,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663372929] [2023-11-29 20:43:42,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663372929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:43:42,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:43:42,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:43:42,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490587476] [2023-11-29 20:43:42,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:43:42,875 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:43:42,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:43:42,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:43:42,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:43:42,877 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:43:42,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1008 places, 2491 transitions, 72416 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:42,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:43:42,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:43:42,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:43:47,853 INFO L124 PetriNetUnfolderBase]: 1533/4934 cut-off events. [2023-11-29 20:43:47,853 INFO L125 PetriNetUnfolderBase]: For 42845/47589 co-relation queries the response was YES. [2023-11-29 20:43:47,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60068 conditions, 4934 events. 1533/4934 cut-off events. For 42845/47589 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 36490 event pairs, 13 based on Foata normal form. 96/4840 useless extension candidates. Maximal degree in co-relation 50052. Up to 2178 conditions per place. [2023-11-29 20:43:47,891 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1528 selfloop transitions, 281 changer transitions 584/2490 dead transitions. [2023-11-29 20:43:47,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1070 places, 2490 transitions, 77175 flow [2023-11-29 20:43:47,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-11-29 20:43:47,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2023-11-29 20:43:47,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 7239 transitions. [2023-11-29 20:43:47,895 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5319664902998237 [2023-11-29 20:43:47,895 INFO L72 ComplementDD]: Start complementDD. Operand 63 states and 7239 transitions. [2023-11-29 20:43:47,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 7239 transitions. [2023-11-29 20:43:47,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:43:47,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 63 states and 7239 transitions. [2023-11-29 20:43:47,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 64 states, 63 states have (on average 114.9047619047619) internal successors, (7239), 63 states have internal predecessors, (7239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:47,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 64 states, 64 states have (on average 216.0) internal successors, (13824), 64 states have internal predecessors, (13824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:47,906 INFO L81 ComplementDD]: Finished complementDD. Result has 64 states, 64 states have (on average 216.0) internal successors, (13824), 64 states have internal predecessors, (13824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:47,906 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 869 predicate places. [2023-11-29 20:43:47,906 INFO L500 AbstractCegarLoop]: Abstraction has has 1070 places, 2490 transitions, 77175 flow [2023-11-29 20:43:47,907 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:47,907 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:43:47,907 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:43:47,907 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 20:43:47,907 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:43:47,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:43:47,908 INFO L85 PathProgramCache]: Analyzing trace with hash 615844507, now seen corresponding path program 16 times [2023-11-29 20:43:47,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:43:47,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406298030] [2023-11-29 20:43:47,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:43:47,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:43:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:43:49,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:43:49,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:43:49,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406298030] [2023-11-29 20:43:49,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406298030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:43:49,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:43:49,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:43:49,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360715380] [2023-11-29 20:43:49,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:43:49,015 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:43:49,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:43:49,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:43:49,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:43:49,017 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:43:49,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1070 places, 2490 transitions, 77175 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:49,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:43:49,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:43:49,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:43:54,392 INFO L124 PetriNetUnfolderBase]: 1551/5104 cut-off events. [2023-11-29 20:43:54,392 INFO L125 PetriNetUnfolderBase]: For 52344/58521 co-relation queries the response was YES. [2023-11-29 20:43:54,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65468 conditions, 5104 events. 1551/5104 cut-off events. For 52344/58521 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 38395 event pairs, 10 based on Foata normal form. 82/4986 useless extension candidates. Maximal degree in co-relation 53637. Up to 2269 conditions per place. [2023-11-29 20:43:54,439 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1564 selfloop transitions, 285 changer transitions 621/2567 dead transitions. [2023-11-29 20:43:54,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1130 places, 2567 transitions, 84618 flow [2023-11-29 20:43:54,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-11-29 20:43:54,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2023-11-29 20:43:54,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 7020 transitions. [2023-11-29 20:43:54,443 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5327868852459017 [2023-11-29 20:43:54,443 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 7020 transitions. [2023-11-29 20:43:54,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 7020 transitions. [2023-11-29 20:43:54,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:43:54,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 7020 transitions. [2023-11-29 20:43:54,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 62 states, 61 states have (on average 115.08196721311475) internal successors, (7020), 61 states have internal predecessors, (7020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:54,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 62 states, 62 states have (on average 216.0) internal successors, (13392), 62 states have internal predecessors, (13392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:54,455 INFO L81 ComplementDD]: Finished complementDD. Result has 62 states, 62 states have (on average 216.0) internal successors, (13392), 62 states have internal predecessors, (13392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:54,455 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 929 predicate places. [2023-11-29 20:43:54,455 INFO L500 AbstractCegarLoop]: Abstraction has has 1130 places, 2567 transitions, 84618 flow [2023-11-29 20:43:54,456 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:54,456 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:43:54,456 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:43:54,456 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 20:43:54,456 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:43:54,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:43:54,456 INFO L85 PathProgramCache]: Analyzing trace with hash 282349541, now seen corresponding path program 17 times [2023-11-29 20:43:54,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:43:54,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615347838] [2023-11-29 20:43:54,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:43:54,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:43:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:43:55,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:43:55,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:43:55,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615347838] [2023-11-29 20:43:55,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615347838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:43:55,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:43:55,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:43:55,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954468115] [2023-11-29 20:43:55,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:43:55,623 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:43:55,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:43:55,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:43:55,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:43:55,625 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:43:55,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1130 places, 2567 transitions, 84618 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:43:55,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:43:55,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:43:55,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:44:00,537 INFO L124 PetriNetUnfolderBase]: 1552/5187 cut-off events. [2023-11-29 20:44:00,537 INFO L125 PetriNetUnfolderBase]: For 62782/70701 co-relation queries the response was YES. [2023-11-29 20:44:00,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69755 conditions, 5187 events. 1552/5187 cut-off events. For 62782/70701 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 39343 event pairs, 9 based on Foata normal form. 74/5053 useless extension candidates. Maximal degree in co-relation 56806. Up to 2292 conditions per place. [2023-11-29 20:44:00,580 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1555 selfloop transitions, 286 changer transitions 653/2591 dead transitions. [2023-11-29 20:44:00,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1192 places, 2591 transitions, 90434 flow [2023-11-29 20:44:00,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-11-29 20:44:00,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2023-11-29 20:44:00,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 7244 transitions. [2023-11-29 20:44:00,584 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5323339212228101 [2023-11-29 20:44:00,584 INFO L72 ComplementDD]: Start complementDD. Operand 63 states and 7244 transitions. [2023-11-29 20:44:00,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 7244 transitions. [2023-11-29 20:44:00,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:44:00,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 63 states and 7244 transitions. [2023-11-29 20:44:00,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 64 states, 63 states have (on average 114.98412698412699) internal successors, (7244), 63 states have internal predecessors, (7244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:00,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 64 states, 64 states have (on average 216.0) internal successors, (13824), 64 states have internal predecessors, (13824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:00,595 INFO L81 ComplementDD]: Finished complementDD. Result has 64 states, 64 states have (on average 216.0) internal successors, (13824), 64 states have internal predecessors, (13824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:00,596 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 991 predicate places. [2023-11-29 20:44:00,596 INFO L500 AbstractCegarLoop]: Abstraction has has 1192 places, 2591 transitions, 90434 flow [2023-11-29 20:44:00,596 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:00,596 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:44:00,596 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:44:00,597 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 20:44:00,597 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:44:00,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:44:00,597 INFO L85 PathProgramCache]: Analyzing trace with hash -887562967, now seen corresponding path program 18 times [2023-11-29 20:44:00,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:44:00,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862748011] [2023-11-29 20:44:00,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:44:00,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:44:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:44:01,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:44:01,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:44:01,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862748011] [2023-11-29 20:44:01,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862748011] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:44:01,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:44:01,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:44:01,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889361509] [2023-11-29 20:44:01,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:44:01,752 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:44:01,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:44:01,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:44:01,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:44:01,754 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:44:01,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1192 places, 2591 transitions, 90434 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:01,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:44:01,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:44:01,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:44:07,380 INFO L124 PetriNetUnfolderBase]: 1551/5174 cut-off events. [2023-11-29 20:44:07,380 INFO L125 PetriNetUnfolderBase]: For 67973/75217 co-relation queries the response was YES. [2023-11-29 20:44:07,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73888 conditions, 5174 events. 1551/5174 cut-off events. For 67973/75217 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 39261 event pairs, 9 based on Foata normal form. 77/5047 useless extension candidates. Maximal degree in co-relation 64540. Up to 2309 conditions per place. [2023-11-29 20:44:07,430 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1550 selfloop transitions, 287 changer transitions 679/2613 dead transitions. [2023-11-29 20:44:07,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1258 places, 2613 transitions, 96267 flow [2023-11-29 20:44:07,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-11-29 20:44:07,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2023-11-29 20:44:07,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 7711 transitions. [2023-11-29 20:44:07,434 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5328220011055832 [2023-11-29 20:44:07,434 INFO L72 ComplementDD]: Start complementDD. Operand 67 states and 7711 transitions. [2023-11-29 20:44:07,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 7711 transitions. [2023-11-29 20:44:07,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:44:07,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 67 states and 7711 transitions. [2023-11-29 20:44:07,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 68 states, 67 states have (on average 115.08955223880596) internal successors, (7711), 67 states have internal predecessors, (7711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:07,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 68 states, 68 states have (on average 216.0) internal successors, (14688), 68 states have internal predecessors, (14688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:07,446 INFO L81 ComplementDD]: Finished complementDD. Result has 68 states, 68 states have (on average 216.0) internal successors, (14688), 68 states have internal predecessors, (14688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:07,446 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 1057 predicate places. [2023-11-29 20:44:07,447 INFO L500 AbstractCegarLoop]: Abstraction has has 1258 places, 2613 transitions, 96267 flow [2023-11-29 20:44:07,447 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:07,447 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:44:07,447 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:44:07,447 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 20:44:07,447 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:44:07,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:44:07,448 INFO L85 PathProgramCache]: Analyzing trace with hash -475048181, now seen corresponding path program 19 times [2023-11-29 20:44:07,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:44:07,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607571493] [2023-11-29 20:44:07,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:44:07,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:44:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:44:08,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:44:08,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:44:08,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607571493] [2023-11-29 20:44:08,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607571493] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:44:08,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:44:08,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:44:08,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006286082] [2023-11-29 20:44:08,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:44:08,626 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:44:08,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:44:08,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:44:08,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:44:08,628 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:44:08,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1258 places, 2613 transitions, 96267 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:08,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:44:08,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:44:08,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:44:13,878 INFO L124 PetriNetUnfolderBase]: 1551/5218 cut-off events. [2023-11-29 20:44:13,878 INFO L125 PetriNetUnfolderBase]: For 79870/89476 co-relation queries the response was YES. [2023-11-29 20:44:13,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77679 conditions, 5218 events. 1551/5218 cut-off events. For 79870/89476 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 39800 event pairs, 7 based on Foata normal form. 65/5073 useless extension candidates. Maximal degree in co-relation 67909. Up to 2306 conditions per place. [2023-11-29 20:44:13,932 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1516 selfloop transitions, 264 changer transitions 735/2612 dead transitions. [2023-11-29 20:44:13,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1323 places, 2612 transitions, 101262 flow [2023-11-29 20:44:13,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-11-29 20:44:13,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2023-11-29 20:44:13,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 7581 transitions. [2023-11-29 20:44:13,935 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5317760942760943 [2023-11-29 20:44:13,935 INFO L72 ComplementDD]: Start complementDD. Operand 66 states and 7581 transitions. [2023-11-29 20:44:13,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 7581 transitions. [2023-11-29 20:44:13,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:44:13,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 66 states and 7581 transitions. [2023-11-29 20:44:13,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 67 states, 66 states have (on average 114.86363636363636) internal successors, (7581), 66 states have internal predecessors, (7581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:13,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 67 states, 67 states have (on average 216.0) internal successors, (14472), 67 states have internal predecessors, (14472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:13,946 INFO L81 ComplementDD]: Finished complementDD. Result has 67 states, 67 states have (on average 216.0) internal successors, (14472), 67 states have internal predecessors, (14472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:13,947 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 1122 predicate places. [2023-11-29 20:44:13,947 INFO L500 AbstractCegarLoop]: Abstraction has has 1323 places, 2612 transitions, 101262 flow [2023-11-29 20:44:13,947 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:13,947 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:44:13,947 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:44:13,948 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 20:44:13,948 INFO L425 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:44:13,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:44:13,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1411728331, now seen corresponding path program 20 times [2023-11-29 20:44:13,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:44:13,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141064700] [2023-11-29 20:44:13,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:44:13,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:44:13,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:44:15,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:44:15,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:44:15,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141064700] [2023-11-29 20:44:15,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141064700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:44:15,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:44:15,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:44:15,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308682988] [2023-11-29 20:44:15,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:44:15,146 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:44:15,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:44:15,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:44:15,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:44:15,148 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:44:15,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1323 places, 2612 transitions, 101262 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:15,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:44:15,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:44:15,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:44:20,680 INFO L124 PetriNetUnfolderBase]: 1560/5311 cut-off events. [2023-11-29 20:44:20,681 INFO L125 PetriNetUnfolderBase]: For 86657/94649 co-relation queries the response was YES. [2023-11-29 20:44:20,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83059 conditions, 5311 events. 1560/5311 cut-off events. For 86657/94649 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 40827 event pairs, 6 based on Foata normal form. 61/5159 useless extension candidates. Maximal degree in co-relation 71943. Up to 2373 conditions per place. [2023-11-29 20:44:20,736 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1531 selfloop transitions, 290 changer transitions 762/2680 dead transitions. [2023-11-29 20:44:20,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1390 places, 2680 transitions, 109163 flow [2023-11-29 20:44:20,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-11-29 20:44:20,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2023-11-29 20:44:20,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 7819 transitions. [2023-11-29 20:44:20,740 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5323393246187363 [2023-11-29 20:44:20,740 INFO L72 ComplementDD]: Start complementDD. Operand 68 states and 7819 transitions. [2023-11-29 20:44:20,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 7819 transitions. [2023-11-29 20:44:20,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:44:20,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 68 states and 7819 transitions. [2023-11-29 20:44:20,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 69 states, 68 states have (on average 114.98529411764706) internal successors, (7819), 68 states have internal predecessors, (7819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:20,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 69 states, 69 states have (on average 216.0) internal successors, (14904), 69 states have internal predecessors, (14904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:20,859 INFO L81 ComplementDD]: Finished complementDD. Result has 69 states, 69 states have (on average 216.0) internal successors, (14904), 69 states have internal predecessors, (14904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:20,859 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 1189 predicate places. [2023-11-29 20:44:20,859 INFO L500 AbstractCegarLoop]: Abstraction has has 1390 places, 2680 transitions, 109163 flow [2023-11-29 20:44:20,860 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:20,860 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:44:20,860 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:44:20,860 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 20:44:20,860 INFO L425 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:44:20,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:44:20,861 INFO L85 PathProgramCache]: Analyzing trace with hash -2043552811, now seen corresponding path program 21 times [2023-11-29 20:44:20,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:44:20,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729742506] [2023-11-29 20:44:20,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:44:20,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:44:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:44:22,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:44:22,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:44:22,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729742506] [2023-11-29 20:44:22,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729742506] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:44:22,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:44:22,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:44:22,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033311922] [2023-11-29 20:44:22,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:44:22,043 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:44:22,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:44:22,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:44:22,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:44:22,045 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:44:22,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1390 places, 2680 transitions, 109163 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:22,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:44:22,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:44:22,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:44:27,871 INFO L124 PetriNetUnfolderBase]: 1577/5390 cut-off events. [2023-11-29 20:44:27,872 INFO L125 PetriNetUnfolderBase]: For 97383/105653 co-relation queries the response was YES. [2023-11-29 20:44:27,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89463 conditions, 5390 events. 1577/5390 cut-off events. For 97383/105653 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 41734 event pairs, 11 based on Foata normal form. 96/5275 useless extension candidates. Maximal degree in co-relation 76432. Up to 2480 conditions per place. [2023-11-29 20:44:27,922 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1589 selfloop transitions, 303 changer transitions 792/2781 dead transitions. [2023-11-29 20:44:27,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1460 places, 2781 transitions, 118806 flow [2023-11-29 20:44:27,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-11-29 20:44:27,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2023-11-29 20:44:27,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 8170 transitions. [2023-11-29 20:44:27,927 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5327334376630152 [2023-11-29 20:44:27,927 INFO L72 ComplementDD]: Start complementDD. Operand 71 states and 8170 transitions. [2023-11-29 20:44:27,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 8170 transitions. [2023-11-29 20:44:27,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:44:27,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 71 states and 8170 transitions. [2023-11-29 20:44:27,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 72 states, 71 states have (on average 115.07042253521126) internal successors, (8170), 71 states have internal predecessors, (8170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:27,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 72 states, 72 states have (on average 216.0) internal successors, (15552), 72 states have internal predecessors, (15552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:27,938 INFO L81 ComplementDD]: Finished complementDD. Result has 72 states, 72 states have (on average 216.0) internal successors, (15552), 72 states have internal predecessors, (15552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:27,939 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 1259 predicate places. [2023-11-29 20:44:27,939 INFO L500 AbstractCegarLoop]: Abstraction has has 1460 places, 2781 transitions, 118806 flow [2023-11-29 20:44:27,939 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:27,939 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:44:27,939 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:44:27,939 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 20:44:27,939 INFO L425 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:44:27,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:44:27,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1581973829, now seen corresponding path program 22 times [2023-11-29 20:44:27,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:44:27,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691530600] [2023-11-29 20:44:27,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:44:27,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:44:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:44:29,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:44:29,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:44:29,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691530600] [2023-11-29 20:44:29,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691530600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:44:29,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:44:29,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:44:29,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138207889] [2023-11-29 20:44:29,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:44:29,006 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:44:29,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:44:29,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:44:29,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:44:29,009 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:44:29,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1460 places, 2781 transitions, 118806 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:29,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:44:29,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:44:29,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:44:34,740 INFO L124 PetriNetUnfolderBase]: 1577/5430 cut-off events. [2023-11-29 20:44:34,740 INFO L125 PetriNetUnfolderBase]: For 112237/123639 co-relation queries the response was YES. [2023-11-29 20:44:34,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93428 conditions, 5430 events. 1577/5430 cut-off events. For 112237/123639 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 42117 event pairs, 8 based on Foata normal form. 68/5279 useless extension candidates. Maximal degree in co-relation 79883. Up to 2477 conditions per place. [2023-11-29 20:44:34,800 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1562 selfloop transitions, 297 changer transitions 823/2779 dead transitions. [2023-11-29 20:44:34,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1526 places, 2779 transitions, 124085 flow [2023-11-29 20:44:34,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-11-29 20:44:34,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2023-11-29 20:44:34,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 7693 transitions. [2023-11-29 20:44:34,803 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5315782200110558 [2023-11-29 20:44:34,803 INFO L72 ComplementDD]: Start complementDD. Operand 67 states and 7693 transitions. [2023-11-29 20:44:34,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 7693 transitions. [2023-11-29 20:44:34,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:44:34,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 67 states and 7693 transitions. [2023-11-29 20:44:34,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 68 states, 67 states have (on average 114.82089552238806) internal successors, (7693), 67 states have internal predecessors, (7693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:34,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 68 states, 68 states have (on average 216.0) internal successors, (14688), 68 states have internal predecessors, (14688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:34,815 INFO L81 ComplementDD]: Finished complementDD. Result has 68 states, 68 states have (on average 216.0) internal successors, (14688), 68 states have internal predecessors, (14688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:34,815 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 1325 predicate places. [2023-11-29 20:44:34,815 INFO L500 AbstractCegarLoop]: Abstraction has has 1526 places, 2779 transitions, 124085 flow [2023-11-29 20:44:34,816 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:34,816 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:44:34,816 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:44:34,816 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 20:44:34,816 INFO L425 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:44:34,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:44:34,816 INFO L85 PathProgramCache]: Analyzing trace with hash -41895379, now seen corresponding path program 23 times [2023-11-29 20:44:34,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:44:34,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167911315] [2023-11-29 20:44:34,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:44:34,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:44:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:44:36,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:44:36,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:44:36,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167911315] [2023-11-29 20:44:36,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167911315] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:44:36,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:44:36,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:44:36,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937238759] [2023-11-29 20:44:36,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:44:36,017 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:44:36,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:44:36,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:44:36,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:44:36,019 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:44:36,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1526 places, 2779 transitions, 124085 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:36,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:44:36,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:44:36,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:44:42,148 INFO L124 PetriNetUnfolderBase]: 1591/5539 cut-off events. [2023-11-29 20:44:42,148 INFO L125 PetriNetUnfolderBase]: For 118893/127289 co-relation queries the response was YES. [2023-11-29 20:44:42,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99463 conditions, 5539 events. 1591/5539 cut-off events. For 118893/127289 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 43356 event pairs, 8 based on Foata normal form. 86/5405 useless extension candidates. Maximal degree in co-relation 84348. Up to 2553 conditions per place. [2023-11-29 20:44:42,219 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1596 selfloop transitions, 308 changer transitions 850/2851 dead transitions. [2023-11-29 20:44:42,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1594 places, 2851 transitions, 132920 flow [2023-11-29 20:44:42,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-11-29 20:44:42,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2023-11-29 20:44:42,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 7921 transitions. [2023-11-29 20:44:42,223 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5314680622651637 [2023-11-29 20:44:42,224 INFO L72 ComplementDD]: Start complementDD. Operand 69 states and 7921 transitions. [2023-11-29 20:44:42,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 7921 transitions. [2023-11-29 20:44:42,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:44:42,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 69 states and 7921 transitions. [2023-11-29 20:44:42,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 70 states, 69 states have (on average 114.79710144927536) internal successors, (7921), 69 states have internal predecessors, (7921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:42,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 70 states, 70 states have (on average 216.0) internal successors, (15120), 70 states have internal predecessors, (15120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:42,237 INFO L81 ComplementDD]: Finished complementDD. Result has 70 states, 70 states have (on average 216.0) internal successors, (15120), 70 states have internal predecessors, (15120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:42,237 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 1393 predicate places. [2023-11-29 20:44:42,237 INFO L500 AbstractCegarLoop]: Abstraction has has 1594 places, 2851 transitions, 132920 flow [2023-11-29 20:44:42,238 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:42,238 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:44:42,238 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:44:42,238 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 20:44:42,238 INFO L425 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:44:42,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:44:42,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1963270773, now seen corresponding path program 24 times [2023-11-29 20:44:42,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:44:42,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529223455] [2023-11-29 20:44:42,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:44:42,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:44:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:44:43,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:44:43,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:44:43,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529223455] [2023-11-29 20:44:43,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529223455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:44:43,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:44:43,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:44:43,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131506990] [2023-11-29 20:44:43,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:44:43,465 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:44:43,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:44:43,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:44:43,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:44:43,467 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:44:43,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1594 places, 2851 transitions, 132920 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:43,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:44:43,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:44:43,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:44:49,798 INFO L124 PetriNetUnfolderBase]: 1590/5590 cut-off events. [2023-11-29 20:44:49,798 INFO L125 PetriNetUnfolderBase]: For 131520/140922 co-relation queries the response was YES. [2023-11-29 20:44:49,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104116 conditions, 5590 events. 1590/5590 cut-off events. For 131520/140922 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 44003 event pairs, 7 based on Foata normal form. 77/5442 useless extension candidates. Maximal degree in co-relation 87902. Up to 2572 conditions per place. [2023-11-29 20:44:49,861 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1594 selfloop transitions, 309 changer transitions 879/2879 dead transitions. [2023-11-29 20:44:49,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1659 places, 2879 transitions, 139834 flow [2023-11-29 20:44:49,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-11-29 20:44:49,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2023-11-29 20:44:49,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 7573 transitions. [2023-11-29 20:44:49,865 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5312149270482603 [2023-11-29 20:44:49,865 INFO L72 ComplementDD]: Start complementDD. Operand 66 states and 7573 transitions. [2023-11-29 20:44:49,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 7573 transitions. [2023-11-29 20:44:49,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:44:49,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 66 states and 7573 transitions. [2023-11-29 20:44:49,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 67 states, 66 states have (on average 114.74242424242425) internal successors, (7573), 66 states have internal predecessors, (7573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:49,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 67 states, 67 states have (on average 216.0) internal successors, (14472), 67 states have internal predecessors, (14472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:49,876 INFO L81 ComplementDD]: Finished complementDD. Result has 67 states, 67 states have (on average 216.0) internal successors, (14472), 67 states have internal predecessors, (14472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:49,876 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 1458 predicate places. [2023-11-29 20:44:49,876 INFO L500 AbstractCegarLoop]: Abstraction has has 1659 places, 2879 transitions, 139834 flow [2023-11-29 20:44:49,877 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:49,877 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:44:49,877 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:44:49,877 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 20:44:49,877 INFO L425 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:44:49,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:44:49,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1979968573, now seen corresponding path program 25 times [2023-11-29 20:44:49,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:44:49,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615875134] [2023-11-29 20:44:49,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:44:49,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:44:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:44:50,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:44:50,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:44:50,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615875134] [2023-11-29 20:44:50,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615875134] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:44:50,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:44:50,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:44:50,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585535309] [2023-11-29 20:44:50,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:44:50,989 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:44:50,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:44:50,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:44:50,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:44:50,992 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:44:50,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1659 places, 2879 transitions, 139834 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:50,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:44:50,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:44:50,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:44:57,698 INFO L124 PetriNetUnfolderBase]: 1592/5713 cut-off events. [2023-11-29 20:44:57,699 INFO L125 PetriNetUnfolderBase]: For 156781/170225 co-relation queries the response was YES. [2023-11-29 20:44:57,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109689 conditions, 5713 events. 1592/5713 cut-off events. For 156781/170225 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 45385 event pairs, 5 based on Foata normal form. 73/5554 useless extension candidates. Maximal degree in co-relation 84989. Up to 2620 conditions per place. [2023-11-29 20:44:57,776 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1619 selfloop transitions, 307 changer transitions 906/2929 dead transitions. [2023-11-29 20:44:57,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1727 places, 2929 transitions, 148013 flow [2023-11-29 20:44:57,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-11-29 20:44:57,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2023-11-29 20:44:57,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 7941 transitions. [2023-11-29 20:44:57,781 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5328099838969405 [2023-11-29 20:44:57,781 INFO L72 ComplementDD]: Start complementDD. Operand 69 states and 7941 transitions. [2023-11-29 20:44:57,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 7941 transitions. [2023-11-29 20:44:57,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:44:57,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 69 states and 7941 transitions. [2023-11-29 20:44:57,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 70 states, 69 states have (on average 115.08695652173913) internal successors, (7941), 69 states have internal predecessors, (7941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:57,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 70 states, 70 states have (on average 216.0) internal successors, (15120), 70 states have internal predecessors, (15120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:57,793 INFO L81 ComplementDD]: Finished complementDD. Result has 70 states, 70 states have (on average 216.0) internal successors, (15120), 70 states have internal predecessors, (15120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:57,794 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 1526 predicate places. [2023-11-29 20:44:57,794 INFO L500 AbstractCegarLoop]: Abstraction has has 1727 places, 2929 transitions, 148013 flow [2023-11-29 20:44:57,794 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:57,794 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:44:57,794 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:44:57,794 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 20:44:57,794 INFO L425 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:44:57,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:44:57,795 INFO L85 PathProgramCache]: Analyzing trace with hash 596681841, now seen corresponding path program 26 times [2023-11-29 20:44:57,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:44:57,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109669941] [2023-11-29 20:44:57,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:44:57,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:44:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:44:59,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:44:59,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:44:59,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109669941] [2023-11-29 20:44:59,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109669941] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:44:59,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:44:59,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:44:59,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554236283] [2023-11-29 20:44:59,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:44:59,164 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:44:59,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:44:59,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:44:59,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:44:59,167 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:44:59,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1727 places, 2929 transitions, 148013 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:44:59,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:44:59,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:44:59,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:45:06,254 INFO L124 PetriNetUnfolderBase]: 1592/5739 cut-off events. [2023-11-29 20:45:06,254 INFO L125 PetriNetUnfolderBase]: For 163450/174866 co-relation queries the response was YES. [2023-11-29 20:45:06,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115142 conditions, 5739 events. 1592/5739 cut-off events. For 163450/174866 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 45804 event pairs, 10 based on Foata normal form. 79/5581 useless extension candidates. Maximal degree in co-relation 88388. Up to 2663 conditions per place. [2023-11-29 20:45:06,325 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1640 selfloop transitions, 313 changer transitions 935/2985 dead transitions. [2023-11-29 20:45:06,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1792 places, 2985 transitions, 156719 flow [2023-11-29 20:45:06,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-11-29 20:45:06,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2023-11-29 20:45:06,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 7585 transitions. [2023-11-29 20:45:06,331 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5320566778900112 [2023-11-29 20:45:06,331 INFO L72 ComplementDD]: Start complementDD. Operand 66 states and 7585 transitions. [2023-11-29 20:45:06,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 7585 transitions. [2023-11-29 20:45:06,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:45:06,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 66 states and 7585 transitions. [2023-11-29 20:45:06,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 67 states, 66 states have (on average 114.92424242424242) internal successors, (7585), 66 states have internal predecessors, (7585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:06,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 67 states, 67 states have (on average 216.0) internal successors, (14472), 67 states have internal predecessors, (14472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:06,343 INFO L81 ComplementDD]: Finished complementDD. Result has 67 states, 67 states have (on average 216.0) internal successors, (14472), 67 states have internal predecessors, (14472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:06,343 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 1591 predicate places. [2023-11-29 20:45:06,343 INFO L500 AbstractCegarLoop]: Abstraction has has 1792 places, 2985 transitions, 156719 flow [2023-11-29 20:45:06,344 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:06,344 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:45:06,344 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:45:06,344 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 20:45:06,344 INFO L425 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:45:06,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:45:06,344 INFO L85 PathProgramCache]: Analyzing trace with hash 284987087, now seen corresponding path program 27 times [2023-11-29 20:45:06,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:45:06,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475629209] [2023-11-29 20:45:06,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:45:06,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:45:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:45:07,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:45:07,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:45:07,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475629209] [2023-11-29 20:45:07,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475629209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:45:07,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:45:07,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:45:07,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005512800] [2023-11-29 20:45:07,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:45:07,514 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:45:07,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:45:07,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:45:07,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:45:07,517 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:45:07,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1792 places, 2985 transitions, 156719 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:07,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:45:07,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:45:07,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:45:14,575 INFO L124 PetriNetUnfolderBase]: 1592/5691 cut-off events. [2023-11-29 20:45:14,575 INFO L125 PetriNetUnfolderBase]: For 172758/183371 co-relation queries the response was YES. [2023-11-29 20:45:14,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119210 conditions, 5691 events. 1592/5691 cut-off events. For 172758/183371 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 45261 event pairs, 11 based on Foata normal form. 97/5560 useless extension candidates. Maximal degree in co-relation 91566. Up to 2660 conditions per place. [2023-11-29 20:45:14,640 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1615 selfloop transitions, 296 changer transitions 976/2984 dead transitions. [2023-11-29 20:45:14,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1858 places, 2984 transitions, 162442 flow [2023-11-29 20:45:14,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-11-29 20:45:14,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2023-11-29 20:45:14,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 7704 transitions. [2023-11-29 20:45:14,644 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5323383084577115 [2023-11-29 20:45:14,644 INFO L72 ComplementDD]: Start complementDD. Operand 67 states and 7704 transitions. [2023-11-29 20:45:14,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 7704 transitions. [2023-11-29 20:45:14,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:45:14,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 67 states and 7704 transitions. [2023-11-29 20:45:14,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 68 states, 67 states have (on average 114.98507462686567) internal successors, (7704), 67 states have internal predecessors, (7704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:14,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 68 states, 68 states have (on average 216.0) internal successors, (14688), 68 states have internal predecessors, (14688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:14,656 INFO L81 ComplementDD]: Finished complementDD. Result has 68 states, 68 states have (on average 216.0) internal successors, (14688), 68 states have internal predecessors, (14688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:14,656 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 1657 predicate places. [2023-11-29 20:45:14,657 INFO L500 AbstractCegarLoop]: Abstraction has has 1858 places, 2984 transitions, 162442 flow [2023-11-29 20:45:14,657 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:14,657 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:45:14,657 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:45:14,657 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 20:45:14,657 INFO L425 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:45:14,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:45:14,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1432434869, now seen corresponding path program 28 times [2023-11-29 20:45:14,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:45:14,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262872149] [2023-11-29 20:45:14,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:45:14,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:45:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:45:15,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:45:15,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:45:15,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262872149] [2023-11-29 20:45:15,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262872149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:45:15,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:45:15,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:45:15,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311025059] [2023-11-29 20:45:15,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:45:15,878 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:45:15,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:45:15,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:45:15,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:45:15,881 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:45:15,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1858 places, 2984 transitions, 162442 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:15,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:45:15,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:45:15,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:45:23,024 INFO L124 PetriNetUnfolderBase]: 1592/5665 cut-off events. [2023-11-29 20:45:23,024 INFO L125 PetriNetUnfolderBase]: For 181629/192702 co-relation queries the response was YES. [2023-11-29 20:45:23,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123294 conditions, 5665 events. 1592/5665 cut-off events. For 181629/192702 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 45105 event pairs, 4 based on Foata normal form. 85/5521 useless extension candidates. Maximal degree in co-relation 102304. Up to 2657 conditions per place. [2023-11-29 20:45:23,099 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1582 selfloop transitions, 288 changer transitions 1017/2984 dead transitions. [2023-11-29 20:45:23,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1927 places, 2984 transitions, 168219 flow [2023-11-29 20:45:23,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-11-29 20:45:23,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2023-11-29 20:45:23,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 8037 transitions. [2023-11-29 20:45:23,103 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.531547619047619 [2023-11-29 20:45:23,103 INFO L72 ComplementDD]: Start complementDD. Operand 70 states and 8037 transitions. [2023-11-29 20:45:23,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 8037 transitions. [2023-11-29 20:45:23,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:45:23,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 70 states and 8037 transitions. [2023-11-29 20:45:23,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 71 states, 70 states have (on average 114.81428571428572) internal successors, (8037), 70 states have internal predecessors, (8037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:23,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 71 states, 71 states have (on average 216.0) internal successors, (15336), 71 states have internal predecessors, (15336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:23,117 INFO L81 ComplementDD]: Finished complementDD. Result has 71 states, 71 states have (on average 216.0) internal successors, (15336), 71 states have internal predecessors, (15336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:23,117 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 1726 predicate places. [2023-11-29 20:45:23,117 INFO L500 AbstractCegarLoop]: Abstraction has has 1927 places, 2984 transitions, 168219 flow [2023-11-29 20:45:23,118 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:23,118 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:45:23,118 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:45:23,118 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 20:45:23,118 INFO L425 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:45:23,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:45:23,118 INFO L85 PathProgramCache]: Analyzing trace with hash 536854037, now seen corresponding path program 29 times [2023-11-29 20:45:23,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:45:23,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543698657] [2023-11-29 20:45:23,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:45:23,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:45:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:45:24,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:45:24,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:45:24,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543698657] [2023-11-29 20:45:24,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543698657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:45:24,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:45:24,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:45:24,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334618541] [2023-11-29 20:45:24,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:45:24,420 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:45:24,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:45:24,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:45:24,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:45:24,422 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:45:24,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1927 places, 2984 transitions, 168219 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:24,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:45:24,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:45:24,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:45:31,618 INFO L124 PetriNetUnfolderBase]: 1591/5726 cut-off events. [2023-11-29 20:45:31,618 INFO L125 PetriNetUnfolderBase]: For 201351/214083 co-relation queries the response was YES. [2023-11-29 20:45:31,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128186 conditions, 5726 events. 1591/5726 cut-off events. For 201351/214083 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 45847 event pairs, 10 based on Foata normal form. 81/5572 useless extension candidates. Maximal degree in co-relation 98105. Up to 2676 conditions per place. [2023-11-29 20:45:31,685 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1575 selfloop transitions, 294 changer transitions 1046/3012 dead transitions. [2023-11-29 20:45:31,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1993 places, 3012 transitions, 175679 flow [2023-11-29 20:45:31,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-11-29 20:45:31,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2023-11-29 20:45:31,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 7687 transitions. [2023-11-29 20:45:31,689 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.53116362631288 [2023-11-29 20:45:31,689 INFO L72 ComplementDD]: Start complementDD. Operand 67 states and 7687 transitions. [2023-11-29 20:45:31,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 7687 transitions. [2023-11-29 20:45:31,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:45:31,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 67 states and 7687 transitions. [2023-11-29 20:45:31,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 68 states, 67 states have (on average 114.73134328358209) internal successors, (7687), 67 states have internal predecessors, (7687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:31,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 68 states, 68 states have (on average 216.0) internal successors, (14688), 68 states have internal predecessors, (14688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:31,700 INFO L81 ComplementDD]: Finished complementDD. Result has 68 states, 68 states have (on average 216.0) internal successors, (14688), 68 states have internal predecessors, (14688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:31,701 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 1792 predicate places. [2023-11-29 20:45:31,701 INFO L500 AbstractCegarLoop]: Abstraction has has 1993 places, 3012 transitions, 175679 flow [2023-11-29 20:45:31,701 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:31,701 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:45:31,701 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:45:31,701 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 20:45:31,702 INFO L425 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:45:31,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:45:31,702 INFO L85 PathProgramCache]: Analyzing trace with hash 573787731, now seen corresponding path program 30 times [2023-11-29 20:45:31,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:45:31,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762660463] [2023-11-29 20:45:31,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:45:31,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:45:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:45:32,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:45:32,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:45:32,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762660463] [2023-11-29 20:45:32,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762660463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:45:32,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:45:32,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:45:32,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110913113] [2023-11-29 20:45:32,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:45:32,850 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:45:32,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:45:32,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:45:32,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:45:32,852 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:45:32,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1993 places, 3012 transitions, 175679 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:32,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:45:32,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:45:32,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:45:39,906 INFO L124 PetriNetUnfolderBase]: 1591/5762 cut-off events. [2023-11-29 20:45:39,906 INFO L125 PetriNetUnfolderBase]: For 220636/234002 co-relation queries the response was YES. [2023-11-29 20:45:39,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132345 conditions, 5762 events. 1591/5762 cut-off events. For 220636/234002 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 46274 event pairs, 8 based on Foata normal form. 75/5603 useless extension candidates. Maximal degree in co-relation 101366. Up to 2673 conditions per place. [2023-11-29 20:45:39,974 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1536 selfloop transitions, 270 changer transitions 1108/3011 dead transitions. [2023-11-29 20:45:39,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2062 places, 3011 transitions, 181450 flow [2023-11-29 20:45:39,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-11-29 20:45:39,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2023-11-29 20:45:39,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 8050 transitions. [2023-11-29 20:45:39,978 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5324074074074074 [2023-11-29 20:45:39,978 INFO L72 ComplementDD]: Start complementDD. Operand 70 states and 8050 transitions. [2023-11-29 20:45:39,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 8050 transitions. [2023-11-29 20:45:39,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:45:39,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 70 states and 8050 transitions. [2023-11-29 20:45:39,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 71 states, 70 states have (on average 115.0) internal successors, (8050), 70 states have internal predecessors, (8050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:39,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 71 states, 71 states have (on average 216.0) internal successors, (15336), 71 states have internal predecessors, (15336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:39,990 INFO L81 ComplementDD]: Finished complementDD. Result has 71 states, 71 states have (on average 216.0) internal successors, (15336), 71 states have internal predecessors, (15336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:39,990 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 1861 predicate places. [2023-11-29 20:45:39,990 INFO L500 AbstractCegarLoop]: Abstraction has has 2062 places, 3011 transitions, 181450 flow [2023-11-29 20:45:39,991 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:39,991 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:45:39,991 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:45:39,991 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 20:45:39,991 INFO L425 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:45:39,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:45:39,992 INFO L85 PathProgramCache]: Analyzing trace with hash -93316051, now seen corresponding path program 31 times [2023-11-29 20:45:39,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:45:39,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349789669] [2023-11-29 20:45:39,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:45:39,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:45:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:45:41,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:45:41,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:45:41,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349789669] [2023-11-29 20:45:41,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349789669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:45:41,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:45:41,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:45:41,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511558410] [2023-11-29 20:45:41,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:45:41,165 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:45:41,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:45:41,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:45:41,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:45:41,167 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:45:41,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2062 places, 3011 transitions, 181450 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:41,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:45:41,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:45:41,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:45:48,380 INFO L124 PetriNetUnfolderBase]: 1591/5668 cut-off events. [2023-11-29 20:45:48,380 INFO L125 PetriNetUnfolderBase]: For 221939/233735 co-relation queries the response was YES. [2023-11-29 20:45:48,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136368 conditions, 5668 events. 1591/5668 cut-off events. For 221939/233735 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 45294 event pairs, 9 based on Foata normal form. 105/5548 useless extension candidates. Maximal degree in co-relation 104501. Up to 2670 conditions per place. [2023-11-29 20:45:48,453 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1488 selfloop transitions, 255 changer transitions 1170/3010 dead transitions. [2023-11-29 20:45:48,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2131 places, 3010 transitions, 187217 flow [2023-11-29 20:45:48,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-11-29 20:45:48,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2023-11-29 20:45:48,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 8045 transitions. [2023-11-29 20:45:48,457 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5320767195767195 [2023-11-29 20:45:48,457 INFO L72 ComplementDD]: Start complementDD. Operand 70 states and 8045 transitions. [2023-11-29 20:45:48,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 8045 transitions. [2023-11-29 20:45:48,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:45:48,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 70 states and 8045 transitions. [2023-11-29 20:45:48,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 71 states, 70 states have (on average 114.92857142857143) internal successors, (8045), 70 states have internal predecessors, (8045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:48,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 71 states, 71 states have (on average 216.0) internal successors, (15336), 71 states have internal predecessors, (15336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:48,470 INFO L81 ComplementDD]: Finished complementDD. Result has 71 states, 71 states have (on average 216.0) internal successors, (15336), 71 states have internal predecessors, (15336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:48,470 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 1930 predicate places. [2023-11-29 20:45:48,470 INFO L500 AbstractCegarLoop]: Abstraction has has 2131 places, 3010 transitions, 187217 flow [2023-11-29 20:45:48,470 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:48,471 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:45:48,471 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:45:48,471 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 20:45:48,471 INFO L425 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:45:48,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:45:48,471 INFO L85 PathProgramCache]: Analyzing trace with hash -798356111, now seen corresponding path program 32 times [2023-11-29 20:45:48,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:45:48,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283936772] [2023-11-29 20:45:48,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:45:48,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:45:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:45:49,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:45:49,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:45:49,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283936772] [2023-11-29 20:45:49,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283936772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:45:49,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:45:49,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:45:49,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843262309] [2023-11-29 20:45:49,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:45:49,713 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:45:49,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:45:49,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:45:49,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:45:49,715 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:45:49,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2131 places, 3010 transitions, 187217 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:49,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:45:49,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:45:49,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:45:56,857 INFO L124 PetriNetUnfolderBase]: 1590/5724 cut-off events. [2023-11-29 20:45:56,857 INFO L125 PetriNetUnfolderBase]: For 234573/243765 co-relation queries the response was YES. [2023-11-29 20:45:56,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141497 conditions, 5724 events. 1590/5724 cut-off events. For 234573/243765 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 45873 event pairs, 12 based on Foata normal form. 111/5607 useless extension candidates. Maximal degree in co-relation 108003. Up to 2694 conditions per place. [2023-11-29 20:45:56,940 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1478 selfloop transitions, 263 changer transitions 1199/3037 dead transitions. [2023-11-29 20:45:56,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2193 places, 3037 transitions, 194831 flow [2023-11-29 20:45:56,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-11-29 20:45:56,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2023-11-29 20:45:56,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 7239 transitions. [2023-11-29 20:45:56,944 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5319664902998237 [2023-11-29 20:45:56,944 INFO L72 ComplementDD]: Start complementDD. Operand 63 states and 7239 transitions. [2023-11-29 20:45:56,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 7239 transitions. [2023-11-29 20:45:56,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:45:56,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 63 states and 7239 transitions. [2023-11-29 20:45:56,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 64 states, 63 states have (on average 114.9047619047619) internal successors, (7239), 63 states have internal predecessors, (7239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:56,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 64 states, 64 states have (on average 216.0) internal successors, (13824), 64 states have internal predecessors, (13824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:56,955 INFO L81 ComplementDD]: Finished complementDD. Result has 64 states, 64 states have (on average 216.0) internal successors, (13824), 64 states have internal predecessors, (13824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:56,955 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 1992 predicate places. [2023-11-29 20:45:56,955 INFO L500 AbstractCegarLoop]: Abstraction has has 2193 places, 3037 transitions, 194831 flow [2023-11-29 20:45:56,956 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:56,956 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:45:56,956 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:45:56,956 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 20:45:56,956 INFO L425 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:45:56,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:45:56,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1845112019, now seen corresponding path program 33 times [2023-11-29 20:45:56,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:45:56,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066544004] [2023-11-29 20:45:56,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:45:56,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:45:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:45:58,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:45:58,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:45:58,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066544004] [2023-11-29 20:45:58,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066544004] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:45:58,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:45:58,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:45:58,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955949012] [2023-11-29 20:45:58,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:45:58,216 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:45:58,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:45:58,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:45:58,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:45:58,218 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:45:58,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2193 places, 3037 transitions, 194831 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:45:58,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:45:58,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:45:58,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:46:06,275 INFO L124 PetriNetUnfolderBase]: 1589/5748 cut-off events. [2023-11-29 20:46:06,275 INFO L125 PetriNetUnfolderBase]: For 255998/267130 co-relation queries the response was YES. [2023-11-29 20:46:06,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146450 conditions, 5748 events. 1589/5748 cut-off events. For 255998/267130 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 46204 event pairs, 9 based on Foata normal form. 113/5630 useless extension candidates. Maximal degree in co-relation 111309. Up to 2712 conditions per place. [2023-11-29 20:46:06,487 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1473 selfloop transitions, 254 changer transitions 1234/3058 dead transitions. [2023-11-29 20:46:06,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2259 places, 3058 transitions, 202145 flow [2023-11-29 20:46:06,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-11-29 20:46:06,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2023-11-29 20:46:06,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 7712 transitions. [2023-11-29 20:46:06,491 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5328911000552792 [2023-11-29 20:46:06,491 INFO L72 ComplementDD]: Start complementDD. Operand 67 states and 7712 transitions. [2023-11-29 20:46:06,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 7712 transitions. [2023-11-29 20:46:06,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:46:06,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 67 states and 7712 transitions. [2023-11-29 20:46:06,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 68 states, 67 states have (on average 115.1044776119403) internal successors, (7712), 67 states have internal predecessors, (7712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:06,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 68 states, 68 states have (on average 216.0) internal successors, (14688), 68 states have internal predecessors, (14688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:06,506 INFO L81 ComplementDD]: Finished complementDD. Result has 68 states, 68 states have (on average 216.0) internal successors, (14688), 68 states have internal predecessors, (14688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:06,506 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 2058 predicate places. [2023-11-29 20:46:06,507 INFO L500 AbstractCegarLoop]: Abstraction has has 2259 places, 3058 transitions, 202145 flow [2023-11-29 20:46:06,507 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:06,507 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:46:06,507 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:46:06,508 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 20:46:06,508 INFO L425 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:46:06,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:46:06,508 INFO L85 PathProgramCache]: Analyzing trace with hash -571968463, now seen corresponding path program 34 times [2023-11-29 20:46:06,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:46:06,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050745481] [2023-11-29 20:46:06,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:46:06,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:46:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:46:07,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:46:07,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:46:07,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050745481] [2023-11-29 20:46:07,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050745481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:46:07,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:46:07,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:46:07,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855450442] [2023-11-29 20:46:07,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:46:07,624 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:46:07,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:46:07,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:46:07,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:46:07,626 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:46:07,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2259 places, 3058 transitions, 202145 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:07,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:46:07,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:46:07,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:46:15,473 INFO L124 PetriNetUnfolderBase]: 1589/5708 cut-off events. [2023-11-29 20:46:15,473 INFO L125 PetriNetUnfolderBase]: For 276153/290435 co-relation queries the response was YES. [2023-11-29 20:46:15,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150563 conditions, 5708 events. 1589/5708 cut-off events. For 276153/290435 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 45772 event pairs, 6 based on Foata normal form. 125/5606 useless extension candidates. Maximal degree in co-relation 123588. Up to 2709 conditions per place. [2023-11-29 20:46:15,570 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1447 selfloop transitions, 248 changer transitions 1273/3065 dead transitions. [2023-11-29 20:46:15,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2319 places, 3065 transitions, 208563 flow [2023-11-29 20:46:15,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-11-29 20:46:15,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2023-11-29 20:46:15,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 7018 transitions. [2023-11-29 20:46:15,574 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5326350941105039 [2023-11-29 20:46:15,574 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 7018 transitions. [2023-11-29 20:46:15,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 7018 transitions. [2023-11-29 20:46:15,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:46:15,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 7018 transitions. [2023-11-29 20:46:15,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 62 states, 61 states have (on average 115.04918032786885) internal successors, (7018), 61 states have internal predecessors, (7018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:15,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 62 states, 62 states have (on average 216.0) internal successors, (13392), 62 states have internal predecessors, (13392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:15,585 INFO L81 ComplementDD]: Finished complementDD. Result has 62 states, 62 states have (on average 216.0) internal successors, (13392), 62 states have internal predecessors, (13392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:15,585 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 2118 predicate places. [2023-11-29 20:46:15,585 INFO L500 AbstractCegarLoop]: Abstraction has has 2319 places, 3065 transitions, 208563 flow [2023-11-29 20:46:15,586 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:15,586 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:46:15,586 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:46:15,586 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-29 20:46:15,586 INFO L425 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:46:15,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:46:15,586 INFO L85 PathProgramCache]: Analyzing trace with hash -642993003, now seen corresponding path program 35 times [2023-11-29 20:46:15,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:46:15,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545665861] [2023-11-29 20:46:15,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:46:15,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:46:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:46:16,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:46:16,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:46:16,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545665861] [2023-11-29 20:46:16,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545665861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:46:16,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:46:16,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:46:16,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787493514] [2023-11-29 20:46:16,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:46:16,878 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:46:16,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:46:16,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:46:16,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:46:16,881 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:46:16,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2319 places, 3065 transitions, 208563 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:16,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:46:16,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:46:16,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:46:25,247 INFO L124 PetriNetUnfolderBase]: 1594/5819 cut-off events. [2023-11-29 20:46:25,247 INFO L125 PetriNetUnfolderBase]: For 299727/316879 co-relation queries the response was YES. [2023-11-29 20:46:25,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156264 conditions, 5819 events. 1594/5819 cut-off events. For 299727/316879 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 47159 event pairs, 13 based on Foata normal form. 71/5650 useless extension candidates. Maximal degree in co-relation 127838. Up to 2744 conditions per place. [2023-11-29 20:46:25,330 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1441 selfloop transitions, 251 changer transitions 1307/3096 dead transitions. [2023-11-29 20:46:25,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2383 places, 3096 transitions, 216752 flow [2023-11-29 20:46:25,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-11-29 20:46:25,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2023-11-29 20:46:25,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 7487 transitions. [2023-11-29 20:46:25,334 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5332621082621083 [2023-11-29 20:46:25,334 INFO L72 ComplementDD]: Start complementDD. Operand 65 states and 7487 transitions. [2023-11-29 20:46:25,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 7487 transitions. [2023-11-29 20:46:25,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:46:25,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 65 states and 7487 transitions. [2023-11-29 20:46:25,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 66 states, 65 states have (on average 115.18461538461538) internal successors, (7487), 65 states have internal predecessors, (7487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:25,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 66 states, 66 states have (on average 216.0) internal successors, (14256), 66 states have internal predecessors, (14256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:25,345 INFO L81 ComplementDD]: Finished complementDD. Result has 66 states, 66 states have (on average 216.0) internal successors, (14256), 66 states have internal predecessors, (14256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:25,345 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 2182 predicate places. [2023-11-29 20:46:25,345 INFO L500 AbstractCegarLoop]: Abstraction has has 2383 places, 3096 transitions, 216752 flow [2023-11-29 20:46:25,345 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:25,346 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:46:25,346 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:46:25,346 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-29 20:46:25,346 INFO L425 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:46:25,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:46:25,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1345811995, now seen corresponding path program 36 times [2023-11-29 20:46:25,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:46:25,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323549605] [2023-11-29 20:46:25,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:46:25,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:46:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:46:26,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:46:26,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:46:26,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323549605] [2023-11-29 20:46:26,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323549605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:46:26,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:46:26,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:46:26,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091277203] [2023-11-29 20:46:26,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:46:26,714 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:46:26,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:46:26,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:46:26,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:46:26,717 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:46:26,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2383 places, 3096 transitions, 216752 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:26,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:46:26,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:46:26,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:46:34,619 INFO L124 PetriNetUnfolderBase]: 1595/5838 cut-off events. [2023-11-29 20:46:34,619 INFO L125 PetriNetUnfolderBase]: For 320728/336655 co-relation queries the response was YES. [2023-11-29 20:46:34,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161513 conditions, 5838 events. 1595/5838 cut-off events. For 320728/336655 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 47437 event pairs, 8 based on Foata normal form. 97/5699 useless extension candidates. Maximal degree in co-relation 131598. Up to 2767 conditions per place. [2023-11-29 20:46:34,700 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1432 selfloop transitions, 250 changer transitions 1341/3120 dead transitions. [2023-11-29 20:46:34,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2449 places, 3120 transitions, 224538 flow [2023-11-29 20:46:34,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-11-29 20:46:34,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2023-11-29 20:46:34,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 7711 transitions. [2023-11-29 20:46:34,703 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5328220011055832 [2023-11-29 20:46:34,703 INFO L72 ComplementDD]: Start complementDD. Operand 67 states and 7711 transitions. [2023-11-29 20:46:34,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 7711 transitions. [2023-11-29 20:46:34,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:46:34,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 67 states and 7711 transitions. [2023-11-29 20:46:34,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 68 states, 67 states have (on average 115.08955223880596) internal successors, (7711), 67 states have internal predecessors, (7711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:34,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 68 states, 68 states have (on average 216.0) internal successors, (14688), 68 states have internal predecessors, (14688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:34,715 INFO L81 ComplementDD]: Finished complementDD. Result has 68 states, 68 states have (on average 216.0) internal successors, (14688), 68 states have internal predecessors, (14688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:34,715 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 2248 predicate places. [2023-11-29 20:46:34,715 INFO L500 AbstractCegarLoop]: Abstraction has has 2449 places, 3120 transitions, 224538 flow [2023-11-29 20:46:34,715 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:34,715 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:46:34,716 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:46:34,716 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-29 20:46:34,716 INFO L425 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:46:34,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:46:34,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1077332115, now seen corresponding path program 37 times [2023-11-29 20:46:34,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:46:34,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550216544] [2023-11-29 20:46:34,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:46:34,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:46:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:46:35,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:46:35,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:46:35,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550216544] [2023-11-29 20:46:35,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550216544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:46:35,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:46:35,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:46:35,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606254946] [2023-11-29 20:46:35,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:46:35,775 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:46:35,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:46:35,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:46:35,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:46:35,777 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:46:35,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2449 places, 3120 transitions, 224538 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:35,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:46:35,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:46:35,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:46:43,984 INFO L124 PetriNetUnfolderBase]: 1594/5871 cut-off events. [2023-11-29 20:46:43,984 INFO L125 PetriNetUnfolderBase]: For 328693/342385 co-relation queries the response was YES. [2023-11-29 20:46:43,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166604 conditions, 5871 events. 1594/5871 cut-off events. For 328693/342385 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 48011 event pairs, 6 based on Foata normal form. 87/5721 useless extension candidates. Maximal degree in co-relation 135162. Up to 2784 conditions per place. [2023-11-29 20:46:44,067 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1427 selfloop transitions, 251 changer transitions 1365/3140 dead transitions. [2023-11-29 20:46:44,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2518 places, 3140 transitions, 232110 flow [2023-11-29 20:46:44,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-11-29 20:46:44,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2023-11-29 20:46:44,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 8051 transitions. [2023-11-29 20:46:44,071 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5324735449735449 [2023-11-29 20:46:44,071 INFO L72 ComplementDD]: Start complementDD. Operand 70 states and 8051 transitions. [2023-11-29 20:46:44,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 8051 transitions. [2023-11-29 20:46:44,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:46:44,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 70 states and 8051 transitions. [2023-11-29 20:46:44,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 71 states, 70 states have (on average 115.01428571428572) internal successors, (8051), 70 states have internal predecessors, (8051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:44,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 71 states, 71 states have (on average 216.0) internal successors, (15336), 71 states have internal predecessors, (15336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:44,083 INFO L81 ComplementDD]: Finished complementDD. Result has 71 states, 71 states have (on average 216.0) internal successors, (15336), 71 states have internal predecessors, (15336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:44,084 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 2317 predicate places. [2023-11-29 20:46:44,084 INFO L500 AbstractCegarLoop]: Abstraction has has 2518 places, 3140 transitions, 232110 flow [2023-11-29 20:46:44,084 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:44,084 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:46:44,084 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:46:44,084 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-29 20:46:44,085 INFO L425 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:46:44,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:46:44,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1535265037, now seen corresponding path program 38 times [2023-11-29 20:46:44,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:46:44,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583954463] [2023-11-29 20:46:44,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:46:44,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:46:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:46:45,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:46:45,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:46:45,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583954463] [2023-11-29 20:46:45,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583954463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:46:45,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:46:45,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:46:45,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190711634] [2023-11-29 20:46:45,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:46:45,309 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:46:45,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:46:45,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:46:45,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:46:45,312 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:46:45,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2518 places, 3140 transitions, 232110 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:45,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:46:45,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:46:45,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:46:54,231 INFO L124 PetriNetUnfolderBase]: 1594/5869 cut-off events. [2023-11-29 20:46:54,231 INFO L125 PetriNetUnfolderBase]: For 359733/376053 co-relation queries the response was YES. [2023-11-29 20:46:54,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170824 conditions, 5869 events. 1594/5869 cut-off events. For 359733/376053 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 47909 event pairs, 5 based on Foata normal form. 87/5720 useless extension candidates. Maximal degree in co-relation 138678. Up to 2781 conditions per place. [2023-11-29 20:46:54,311 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1395 selfloop transitions, 230 changer transitions 1415/3137 dead transitions. [2023-11-29 20:46:54,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2588 places, 3137 transitions, 237962 flow [2023-11-29 20:46:54,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-11-29 20:46:54,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2023-11-29 20:46:54,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 8175 transitions. [2023-11-29 20:46:54,315 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5330594679186228 [2023-11-29 20:46:54,315 INFO L72 ComplementDD]: Start complementDD. Operand 71 states and 8175 transitions. [2023-11-29 20:46:54,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 8175 transitions. [2023-11-29 20:46:54,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:46:54,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 71 states and 8175 transitions. [2023-11-29 20:46:54,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 72 states, 71 states have (on average 115.14084507042253) internal successors, (8175), 71 states have internal predecessors, (8175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:54,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 72 states, 72 states have (on average 216.0) internal successors, (15552), 72 states have internal predecessors, (15552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:54,327 INFO L81 ComplementDD]: Finished complementDD. Result has 72 states, 72 states have (on average 216.0) internal successors, (15552), 72 states have internal predecessors, (15552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:54,327 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 2387 predicate places. [2023-11-29 20:46:54,327 INFO L500 AbstractCegarLoop]: Abstraction has has 2588 places, 3137 transitions, 237962 flow [2023-11-29 20:46:54,328 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:54,328 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:46:54,328 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:46:54,328 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-11-29 20:46:54,328 INFO L425 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:46:54,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:46:54,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1930307235, now seen corresponding path program 39 times [2023-11-29 20:46:54,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:46:54,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833665310] [2023-11-29 20:46:54,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:46:54,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:46:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:46:55,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:46:55,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:46:55,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833665310] [2023-11-29 20:46:55,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833665310] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:46:55,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:46:55,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:46:55,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984554186] [2023-11-29 20:46:55,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:46:55,364 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:46:55,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:46:55,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:46:55,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:46:55,367 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:46:55,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2588 places, 3137 transitions, 237962 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:46:55,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:46:55,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:46:55,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:47:03,549 INFO L124 PetriNetUnfolderBase]: 1669/6178 cut-off events. [2023-11-29 20:47:03,550 INFO L125 PetriNetUnfolderBase]: For 398867/418963 co-relation queries the response was YES. [2023-11-29 20:47:03,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183906 conditions, 6178 events. 1669/6178 cut-off events. For 398867/418963 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 51194 event pairs, 9 based on Foata normal form. 63/5994 useless extension candidates. Maximal degree in co-relation 149296. Up to 2970 conditions per place. [2023-11-29 20:47:03,641 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1485 selfloop transitions, 267 changer transitions 1456/3305 dead transitions. [2023-11-29 20:47:03,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2648 places, 3305 transitions, 257521 flow [2023-11-29 20:47:03,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-11-29 20:47:03,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2023-11-29 20:47:03,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 7026 transitions. [2023-11-29 20:47:03,647 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5332422586520947 [2023-11-29 20:47:03,647 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 7026 transitions. [2023-11-29 20:47:03,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 7026 transitions. [2023-11-29 20:47:03,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:47:03,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 7026 transitions. [2023-11-29 20:47:03,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 62 states, 61 states have (on average 115.18032786885246) internal successors, (7026), 61 states have internal predecessors, (7026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:03,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 62 states, 62 states have (on average 216.0) internal successors, (13392), 62 states have internal predecessors, (13392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:03,658 INFO L81 ComplementDD]: Finished complementDD. Result has 62 states, 62 states have (on average 216.0) internal successors, (13392), 62 states have internal predecessors, (13392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:03,659 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 2447 predicate places. [2023-11-29 20:47:03,659 INFO L500 AbstractCegarLoop]: Abstraction has has 2648 places, 3305 transitions, 257521 flow [2023-11-29 20:47:03,659 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:03,659 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:47:03,659 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:47:03,659 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-11-29 20:47:03,660 INFO L425 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:47:03,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:47:03,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1868079333, now seen corresponding path program 40 times [2023-11-29 20:47:03,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:47:03,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691416300] [2023-11-29 20:47:03,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:47:03,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:47:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:47:04,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:47:04,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:47:04,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691416300] [2023-11-29 20:47:04,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691416300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:47:04,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:47:04,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:47:04,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657942355] [2023-11-29 20:47:04,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:47:04,811 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:47:04,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:47:04,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:47:04,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:47:04,813 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:47:04,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2648 places, 3305 transitions, 257521 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:04,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:47:04,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:47:04,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:47:14,034 INFO L124 PetriNetUnfolderBase]: 1668/6230 cut-off events. [2023-11-29 20:47:14,035 INFO L125 PetriNetUnfolderBase]: For 437187/460333 co-relation queries the response was YES. [2023-11-29 20:47:14,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189589 conditions, 6230 events. 1668/6230 cut-off events. For 437187/460333 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 51850 event pairs, 13 based on Foata normal form. 59/6039 useless extension candidates. Maximal degree in co-relation 153338. Up to 3056 conditions per place. [2023-11-29 20:47:14,122 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1502 selfloop transitions, 263 changer transitions 1487/3349 dead transitions. [2023-11-29 20:47:14,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2699 places, 3349 transitions, 267551 flow [2023-11-29 20:47:14,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-11-29 20:47:14,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2023-11-29 20:47:14,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 5982 transitions. [2023-11-29 20:47:14,125 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5325854700854701 [2023-11-29 20:47:14,125 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 5982 transitions. [2023-11-29 20:47:14,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 5982 transitions. [2023-11-29 20:47:14,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:47:14,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 5982 transitions. [2023-11-29 20:47:14,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 115.03846153846153) internal successors, (5982), 52 states have internal predecessors, (5982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:14,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 216.0) internal successors, (11448), 53 states have internal predecessors, (11448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:14,134 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 216.0) internal successors, (11448), 53 states have internal predecessors, (11448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:14,134 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 2498 predicate places. [2023-11-29 20:47:14,134 INFO L500 AbstractCegarLoop]: Abstraction has has 2699 places, 3349 transitions, 267551 flow [2023-11-29 20:47:14,134 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:14,135 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:47:14,135 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:47:14,135 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-11-29 20:47:14,135 INFO L425 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:47:14,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:47:14,135 INFO L85 PathProgramCache]: Analyzing trace with hash -2045298063, now seen corresponding path program 41 times [2023-11-29 20:47:14,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:47:14,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427778939] [2023-11-29 20:47:14,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:47:14,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:47:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:47:15,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:47:15,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:47:15,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427778939] [2023-11-29 20:47:15,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427778939] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:47:15,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:47:15,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:47:15,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45032544] [2023-11-29 20:47:15,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:47:15,189 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:47:15,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:47:15,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:47:15,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:47:15,192 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:47:15,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2699 places, 3349 transitions, 267551 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:15,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:47:15,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:47:15,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:47:23,687 INFO L124 PetriNetUnfolderBase]: 1682/6326 cut-off events. [2023-11-29 20:47:23,687 INFO L125 PetriNetUnfolderBase]: For 454819/474965 co-relation queries the response was YES. [2023-11-29 20:47:23,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197998 conditions, 6326 events. 1682/6326 cut-off events. For 454819/474965 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 53114 event pairs, 13 based on Foata normal form. 80/6151 useless extension candidates. Maximal degree in co-relation 148273. Up to 3134 conditions per place. [2023-11-29 20:47:23,792 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1541 selfloop transitions, 273 changer transitions 1519/3430 dead transitions. [2023-11-29 20:47:23,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2755 places, 3430 transitions, 280874 flow [2023-11-29 20:47:23,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-11-29 20:47:23,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2023-11-29 20:47:23,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 6552 transitions. [2023-11-29 20:47:23,795 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5321637426900585 [2023-11-29 20:47:23,796 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 6552 transitions. [2023-11-29 20:47:23,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 6552 transitions. [2023-11-29 20:47:23,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:47:23,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 6552 transitions. [2023-11-29 20:47:23,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 114.94736842105263) internal successors, (6552), 57 states have internal predecessors, (6552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:23,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 216.0) internal successors, (12528), 58 states have internal predecessors, (12528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:23,806 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 216.0) internal successors, (12528), 58 states have internal predecessors, (12528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:23,806 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 2554 predicate places. [2023-11-29 20:47:23,806 INFO L500 AbstractCegarLoop]: Abstraction has has 2755 places, 3430 transitions, 280874 flow [2023-11-29 20:47:23,807 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:23,807 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:47:23,807 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:47:23,807 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-11-29 20:47:23,807 INFO L425 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:47:23,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:47:23,807 INFO L85 PathProgramCache]: Analyzing trace with hash -819068495, now seen corresponding path program 42 times [2023-11-29 20:47:23,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:47:23,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348351714] [2023-11-29 20:47:23,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:47:23,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:47:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:47:24,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:47:24,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:47:24,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348351714] [2023-11-29 20:47:24,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348351714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:47:24,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:47:24,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:47:24,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747870589] [2023-11-29 20:47:24,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:47:24,938 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:47:24,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:47:24,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:47:24,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:47:24,940 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:47:24,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2755 places, 3430 transitions, 280874 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:24,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:47:24,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:47:24,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:47:34,287 INFO L124 PetriNetUnfolderBase]: 1680/6403 cut-off events. [2023-11-29 20:47:34,287 INFO L125 PetriNetUnfolderBase]: For 500052/525657 co-relation queries the response was YES. [2023-11-29 20:47:34,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204594 conditions, 6403 events. 1680/6403 cut-off events. For 500052/525657 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 54088 event pairs, 10 based on Foata normal form. 67/6211 useless extension candidates. Maximal degree in co-relation 151925. Up to 3172 conditions per place. [2023-11-29 20:47:34,389 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1557 selfloop transitions, 274 changer transitions 1546/3474 dead transitions. [2023-11-29 20:47:34,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2811 places, 3474 transitions, 291336 flow [2023-11-29 20:47:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-11-29 20:47:34,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2023-11-29 20:47:34,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 6572 transitions. [2023-11-29 20:47:34,393 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5337881741390513 [2023-11-29 20:47:34,393 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 6572 transitions. [2023-11-29 20:47:34,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 6572 transitions. [2023-11-29 20:47:34,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:47:34,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 6572 transitions. [2023-11-29 20:47:34,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 115.29824561403508) internal successors, (6572), 57 states have internal predecessors, (6572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:34,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 216.0) internal successors, (12528), 58 states have internal predecessors, (12528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:34,403 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 216.0) internal successors, (12528), 58 states have internal predecessors, (12528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:34,404 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 2610 predicate places. [2023-11-29 20:47:34,404 INFO L500 AbstractCegarLoop]: Abstraction has has 2811 places, 3474 transitions, 291336 flow [2023-11-29 20:47:34,404 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:34,404 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:47:34,404 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:47:34,404 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-11-29 20:47:34,404 INFO L425 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:47:34,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:47:34,405 INFO L85 PathProgramCache]: Analyzing trace with hash -2400109, now seen corresponding path program 43 times [2023-11-29 20:47:34,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:47:34,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324651381] [2023-11-29 20:47:34,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:47:34,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:47:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:47:35,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:47:35,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:47:35,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324651381] [2023-11-29 20:47:35,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324651381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:47:35,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:47:35,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:47:35,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965418945] [2023-11-29 20:47:35,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:47:35,619 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:47:35,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:47:35,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:47:35,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:47:35,621 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:47:35,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2811 places, 3474 transitions, 291336 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:35,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:47:35,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:47:35,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:47:46,124 INFO L124 PetriNetUnfolderBase]: 1680/6431 cut-off events. [2023-11-29 20:47:46,124 INFO L125 PetriNetUnfolderBase]: For 526839/552321 co-relation queries the response was YES. [2023-11-29 20:47:46,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209204 conditions, 6431 events. 1680/6431 cut-off events. For 526839/552321 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 54340 event pairs, 9 based on Foata normal form. 59/6227 useless extension candidates. Maximal degree in co-relation 155451. Up to 3169 conditions per place. [2023-11-29 20:47:46,230 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1543 selfloop transitions, 266 changer transitions 1571/3477 dead transitions. [2023-11-29 20:47:46,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2867 places, 3477 transitions, 298357 flow [2023-11-29 20:47:46,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-11-29 20:47:46,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2023-11-29 20:47:46,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 6574 transitions. [2023-11-29 20:47:46,233 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5339506172839507 [2023-11-29 20:47:46,233 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 6574 transitions. [2023-11-29 20:47:46,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 6574 transitions. [2023-11-29 20:47:46,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:47:46,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 6574 transitions. [2023-11-29 20:47:46,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 115.33333333333333) internal successors, (6574), 57 states have internal predecessors, (6574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:46,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 216.0) internal successors, (12528), 58 states have internal predecessors, (12528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:46,243 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 216.0) internal successors, (12528), 58 states have internal predecessors, (12528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:46,243 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 2666 predicate places. [2023-11-29 20:47:46,243 INFO L500 AbstractCegarLoop]: Abstraction has has 2867 places, 3477 transitions, 298357 flow [2023-11-29 20:47:46,244 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:46,244 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:47:46,244 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:47:46,244 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-11-29 20:47:46,244 INFO L425 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:47:46,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:47:46,245 INFO L85 PathProgramCache]: Analyzing trace with hash 603226741, now seen corresponding path program 44 times [2023-11-29 20:47:46,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:47:46,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502360474] [2023-11-29 20:47:46,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:47:46,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:47:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:47:47,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:47:47,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:47:47,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502360474] [2023-11-29 20:47:47,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502360474] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:47:47,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:47:47,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:47:47,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680152927] [2023-11-29 20:47:47,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:47:47,455 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:47:47,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:47:47,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:47:47,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:47:47,457 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:47:47,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2867 places, 3477 transitions, 298357 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:47,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:47:47,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:47:47,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:47:58,056 INFO L124 PetriNetUnfolderBase]: 1680/6355 cut-off events. [2023-11-29 20:47:58,056 INFO L125 PetriNetUnfolderBase]: For 519792/540256 co-relation queries the response was YES. [2023-11-29 20:47:58,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213704 conditions, 6355 events. 1680/6355 cut-off events. For 519792/540256 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 53598 event pairs, 9 based on Foata normal form. 84/6187 useless extension candidates. Maximal degree in co-relation 158871. Up to 3166 conditions per place. [2023-11-29 20:47:58,160 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1500 selfloop transitions, 257 changer transitions 1620/3474 dead transitions. [2023-11-29 20:47:58,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2921 places, 3474 transitions, 304847 flow [2023-11-29 20:47:58,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-11-29 20:47:58,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2023-11-29 20:47:58,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 6332 transitions. [2023-11-29 20:47:58,164 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.532996632996633 [2023-11-29 20:47:58,164 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 6332 transitions. [2023-11-29 20:47:58,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 6332 transitions. [2023-11-29 20:47:58,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:47:58,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 6332 transitions. [2023-11-29 20:47:58,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 56 states, 55 states have (on average 115.12727272727273) internal successors, (6332), 55 states have internal predecessors, (6332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:58,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 56 states, 56 states have (on average 216.0) internal successors, (12096), 56 states have internal predecessors, (12096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:58,174 INFO L81 ComplementDD]: Finished complementDD. Result has 56 states, 56 states have (on average 216.0) internal successors, (12096), 56 states have internal predecessors, (12096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:58,174 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 2720 predicate places. [2023-11-29 20:47:58,174 INFO L500 AbstractCegarLoop]: Abstraction has has 2921 places, 3474 transitions, 304847 flow [2023-11-29 20:47:58,175 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:58,175 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:47:58,175 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:47:58,175 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-11-29 20:47:58,175 INFO L425 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:47:58,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:47:58,175 INFO L85 PathProgramCache]: Analyzing trace with hash -747570259, now seen corresponding path program 45 times [2023-11-29 20:47:58,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:47:58,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157316493] [2023-11-29 20:47:58,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:47:58,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:47:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:47:59,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:47:59,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:47:59,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157316493] [2023-11-29 20:47:59,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157316493] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:47:59,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:47:59,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:47:59,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625608247] [2023-11-29 20:47:59,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:47:59,339 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:47:59,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:47:59,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:47:59,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:47:59,342 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:47:59,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2921 places, 3474 transitions, 304847 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:47:59,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:47:59,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:47:59,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:48:10,071 INFO L124 PetriNetUnfolderBase]: 1694/6478 cut-off events. [2023-11-29 20:48:10,072 INFO L125 PetriNetUnfolderBase]: For 567080/590788 co-relation queries the response was YES. [2023-11-29 20:48:10,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222318 conditions, 6478 events. 1694/6478 cut-off events. For 567080/590788 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 54968 event pairs, 8 based on Foata normal form. 68/6284 useless extension candidates. Maximal degree in co-relation 164377. Up to 3242 conditions per place. [2023-11-29 20:48:10,181 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1518 selfloop transitions, 285 changer transitions 1647/3547 dead transitions. [2023-11-29 20:48:10,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2984 places, 3547 transitions, 318332 flow [2023-11-29 20:48:10,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-11-29 20:48:10,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2023-11-29 20:48:10,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 7329 transitions. [2023-11-29 20:48:10,184 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5301649305555556 [2023-11-29 20:48:10,185 INFO L72 ComplementDD]: Start complementDD. Operand 64 states and 7329 transitions. [2023-11-29 20:48:10,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 7329 transitions. [2023-11-29 20:48:10,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:48:10,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 64 states and 7329 transitions. [2023-11-29 20:48:10,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 65 states, 64 states have (on average 114.515625) internal successors, (7329), 64 states have internal predecessors, (7329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:10,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 65 states, 65 states have (on average 216.0) internal successors, (14040), 65 states have internal predecessors, (14040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:10,195 INFO L81 ComplementDD]: Finished complementDD. Result has 65 states, 65 states have (on average 216.0) internal successors, (14040), 65 states have internal predecessors, (14040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:10,196 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 2783 predicate places. [2023-11-29 20:48:10,196 INFO L500 AbstractCegarLoop]: Abstraction has has 2984 places, 3547 transitions, 318332 flow [2023-11-29 20:48:10,196 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:10,196 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:48:10,196 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:48:10,197 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-11-29 20:48:10,197 INFO L425 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:48:10,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:48:10,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1446723373, now seen corresponding path program 46 times [2023-11-29 20:48:10,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:48:10,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855030644] [2023-11-29 20:48:10,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:48:10,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:48:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:48:11,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:48:11,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:48:11,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855030644] [2023-11-29 20:48:11,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855030644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:48:11,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:48:11,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:48:11,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623621351] [2023-11-29 20:48:11,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:48:11,417 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:48:11,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:48:11,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:48:11,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:48:11,419 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:48:11,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2984 places, 3547 transitions, 318332 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:11,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:48:11,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:48:11,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:48:22,339 INFO L124 PetriNetUnfolderBase]: 1693/6471 cut-off events. [2023-11-29 20:48:22,339 INFO L125 PetriNetUnfolderBase]: For 566999/584629 co-relation queries the response was YES. [2023-11-29 20:48:22,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228114 conditions, 6471 events. 1693/6471 cut-off events. For 566999/584629 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 55046 event pairs, 12 based on Foata normal form. 83/6298 useless extension candidates. Maximal degree in co-relation 168026. Up to 3261 conditions per place. [2023-11-29 20:48:22,456 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1516 selfloop transitions, 285 changer transitions 1676/3574 dead transitions. [2023-11-29 20:48:22,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3044 places, 3574 transitions, 327776 flow [2023-11-29 20:48:22,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-11-29 20:48:22,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2023-11-29 20:48:22,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 6981 transitions. [2023-11-29 20:48:22,459 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5298269581056466 [2023-11-29 20:48:22,459 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 6981 transitions. [2023-11-29 20:48:22,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 6981 transitions. [2023-11-29 20:48:22,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:48:22,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 6981 transitions. [2023-11-29 20:48:22,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 62 states, 61 states have (on average 114.44262295081967) internal successors, (6981), 61 states have internal predecessors, (6981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:22,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 62 states, 62 states have (on average 216.0) internal successors, (13392), 62 states have internal predecessors, (13392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:22,470 INFO L81 ComplementDD]: Finished complementDD. Result has 62 states, 62 states have (on average 216.0) internal successors, (13392), 62 states have internal predecessors, (13392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:22,470 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 2843 predicate places. [2023-11-29 20:48:22,470 INFO L500 AbstractCegarLoop]: Abstraction has has 3044 places, 3574 transitions, 327776 flow [2023-11-29 20:48:22,471 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:22,471 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:48:22,471 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:48:22,471 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-11-29 20:48:22,471 INFO L425 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:48:22,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:48:22,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1214261805, now seen corresponding path program 47 times [2023-11-29 20:48:22,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:48:22,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639564415] [2023-11-29 20:48:22,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:48:22,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:48:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:48:23,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:48:23,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:48:23,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639564415] [2023-11-29 20:48:23,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639564415] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:48:23,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:48:23,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:48:23,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652528493] [2023-11-29 20:48:23,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:48:23,636 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:48:23,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:48:23,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:48:23,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:48:23,638 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:48:23,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 3044 places, 3574 transitions, 327776 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:23,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:48:23,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:48:23,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:48:35,703 INFO L124 PetriNetUnfolderBase]: 1693/6499 cut-off events. [2023-11-29 20:48:35,704 INFO L125 PetriNetUnfolderBase]: For 604979/627365 co-relation queries the response was YES. [2023-11-29 20:48:35,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232812 conditions, 6499 events. 1693/6499 cut-off events. For 604979/627365 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 55416 event pairs, 13 based on Foata normal form. 69/6306 useless extension candidates. Maximal degree in co-relation 171600. Up to 3258 conditions per place. [2023-11-29 20:48:35,815 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1489 selfloop transitions, 270 changer transitions 1717/3573 dead transitions. [2023-11-29 20:48:35,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3108 places, 3573 transitions, 334637 flow [2023-11-29 20:48:35,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-11-29 20:48:35,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2023-11-29 20:48:35,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 7453 transitions. [2023-11-29 20:48:35,819 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5308404558404558 [2023-11-29 20:48:35,819 INFO L72 ComplementDD]: Start complementDD. Operand 65 states and 7453 transitions. [2023-11-29 20:48:35,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 7453 transitions. [2023-11-29 20:48:35,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:48:35,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 65 states and 7453 transitions. [2023-11-29 20:48:35,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 66 states, 65 states have (on average 114.66153846153846) internal successors, (7453), 65 states have internal predecessors, (7453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:35,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 66 states, 66 states have (on average 216.0) internal successors, (14256), 66 states have internal predecessors, (14256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:35,830 INFO L81 ComplementDD]: Finished complementDD. Result has 66 states, 66 states have (on average 216.0) internal successors, (14256), 66 states have internal predecessors, (14256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:35,830 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 2907 predicate places. [2023-11-29 20:48:35,830 INFO L500 AbstractCegarLoop]: Abstraction has has 3108 places, 3573 transitions, 334637 flow [2023-11-29 20:48:35,830 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:35,830 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:48:35,830 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:48:35,831 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-11-29 20:48:35,831 INFO L425 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:48:35,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:48:35,831 INFO L85 PathProgramCache]: Analyzing trace with hash -598715253, now seen corresponding path program 48 times [2023-11-29 20:48:35,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:48:35,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857828779] [2023-11-29 20:48:35,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:48:35,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:48:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:48:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:48:37,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:48:37,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857828779] [2023-11-29 20:48:37,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857828779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:48:37,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:48:37,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:48:37,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208419749] [2023-11-29 20:48:37,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:48:37,137 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:48:37,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:48:37,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:48:37,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:48:37,140 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:48:37,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 3108 places, 3573 transitions, 334637 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:37,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:48:37,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:48:37,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:48:48,736 INFO L124 PetriNetUnfolderBase]: 1695/6594 cut-off events. [2023-11-29 20:48:48,736 INFO L125 PetriNetUnfolderBase]: For 650899/674659 co-relation queries the response was YES. [2023-11-29 20:48:48,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240313 conditions, 6594 events. 1695/6594 cut-off events. For 650899/674659 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 56690 event pairs, 11 based on Foata normal form. 79/6407 useless extension candidates. Maximal degree in co-relation 175825. Up to 3306 conditions per place. [2023-11-29 20:48:48,848 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1508 selfloop transitions, 274 changer transitions 1744/3623 dead transitions. [2023-11-29 20:48:48,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3168 places, 3623 transitions, 346504 flow [2023-11-29 20:48:48,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-11-29 20:48:48,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2023-11-29 20:48:48,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 7019 transitions. [2023-11-29 20:48:48,852 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5327109896782027 [2023-11-29 20:48:48,852 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 7019 transitions. [2023-11-29 20:48:48,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 7019 transitions. [2023-11-29 20:48:48,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:48:48,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 7019 transitions. [2023-11-29 20:48:48,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 62 states, 61 states have (on average 115.06557377049181) internal successors, (7019), 61 states have internal predecessors, (7019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:48,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 62 states, 62 states have (on average 216.0) internal successors, (13392), 62 states have internal predecessors, (13392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:48,862 INFO L81 ComplementDD]: Finished complementDD. Result has 62 states, 62 states have (on average 216.0) internal successors, (13392), 62 states have internal predecessors, (13392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:48,863 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 2967 predicate places. [2023-11-29 20:48:48,863 INFO L500 AbstractCegarLoop]: Abstraction has has 3168 places, 3623 transitions, 346504 flow [2023-11-29 20:48:48,863 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:48,863 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:48:48,863 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:48:48,864 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-11-29 20:48:48,864 INFO L425 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:48:48,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:48:48,864 INFO L85 PathProgramCache]: Analyzing trace with hash -170072693, now seen corresponding path program 49 times [2023-11-29 20:48:48,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:48:48,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144653509] [2023-11-29 20:48:48,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:48:48,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:48:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:48:49,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:48:49,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:48:49,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144653509] [2023-11-29 20:48:49,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144653509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:48:49,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:48:49,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:48:49,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873728023] [2023-11-29 20:48:49,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:48:49,955 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:48:49,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:48:49,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:48:49,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:48:49,957 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:48:49,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 3168 places, 3623 transitions, 346504 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:48:49,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:48:49,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:48:49,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:49:01,718 INFO L124 PetriNetUnfolderBase]: 1695/6580 cut-off events. [2023-11-29 20:49:01,718 INFO L125 PetriNetUnfolderBase]: For 662103/682871 co-relation queries the response was YES. [2023-11-29 20:49:01,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245014 conditions, 6580 events. 1695/6580 cut-off events. For 662103/682871 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 56470 event pairs, 5 based on Foata normal form. 79/6396 useless extension candidates. Maximal degree in co-relation 192284. Up to 3303 conditions per place. [2023-11-29 20:49:01,836 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1467 selfloop transitions, 256 changer transitions 1802/3622 dead transitions. [2023-11-29 20:49:01,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3226 places, 3622 transitions, 353459 flow [2023-11-29 20:49:01,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-11-29 20:49:01,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2023-11-29 20:49:01,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 6782 transitions. [2023-11-29 20:49:01,840 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5321720025109855 [2023-11-29 20:49:01,840 INFO L72 ComplementDD]: Start complementDD. Operand 59 states and 6782 transitions. [2023-11-29 20:49:01,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 6782 transitions. [2023-11-29 20:49:01,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:49:01,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 59 states and 6782 transitions. [2023-11-29 20:49:01,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 60 states, 59 states have (on average 114.94915254237289) internal successors, (6782), 59 states have internal predecessors, (6782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:01,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 60 states, 60 states have (on average 216.0) internal successors, (12960), 60 states have internal predecessors, (12960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:01,852 INFO L81 ComplementDD]: Finished complementDD. Result has 60 states, 60 states have (on average 216.0) internal successors, (12960), 60 states have internal predecessors, (12960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:01,852 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 3025 predicate places. [2023-11-29 20:49:01,852 INFO L500 AbstractCegarLoop]: Abstraction has has 3226 places, 3622 transitions, 353459 flow [2023-11-29 20:49:01,853 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:01,853 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:49:01,853 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:49:01,853 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-11-29 20:49:01,853 INFO L425 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:49:01,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:49:01,854 INFO L85 PathProgramCache]: Analyzing trace with hash 378725651, now seen corresponding path program 50 times [2023-11-29 20:49:01,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:49:01,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40155142] [2023-11-29 20:49:01,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:49:01,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:49:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:49:02,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:49:02,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:49:02,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40155142] [2023-11-29 20:49:02,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40155142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:49:02,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:49:02,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:49:02,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40032981] [2023-11-29 20:49:02,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:49:02,999 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:49:02,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:49:02,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:49:02,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:49:03,001 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:49:03,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 3226 places, 3622 transitions, 353459 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:03,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:49:03,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:49:03,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:49:15,922 INFO L124 PetriNetUnfolderBase]: 1701/6622 cut-off events. [2023-11-29 20:49:15,922 INFO L125 PetriNetUnfolderBase]: For 668260/684582 co-relation queries the response was YES. [2023-11-29 20:49:15,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253570 conditions, 6622 events. 1701/6622 cut-off events. For 668260/684582 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 57195 event pairs, 7 based on Foata normal form. 97/6456 useless extension candidates. Maximal degree in co-relation 197694. Up to 3366 conditions per place. [2023-11-29 20:49:16,050 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1501 selfloop transitions, 262 changer transitions 1839/3699 dead transitions. [2023-11-29 20:49:16,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3285 places, 3699 transitions, 368381 flow [2023-11-29 20:49:16,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-11-29 20:49:16,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2023-11-29 20:49:16,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 6899 transitions. [2023-11-29 20:49:16,054 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5323302469135802 [2023-11-29 20:49:16,054 INFO L72 ComplementDD]: Start complementDD. Operand 60 states and 6899 transitions. [2023-11-29 20:49:16,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 6899 transitions. [2023-11-29 20:49:16,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:49:16,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 60 states and 6899 transitions. [2023-11-29 20:49:16,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 61 states, 60 states have (on average 114.98333333333333) internal successors, (6899), 60 states have internal predecessors, (6899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:16,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 61 states, 61 states have (on average 216.0) internal successors, (13176), 61 states have internal predecessors, (13176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:16,064 INFO L81 ComplementDD]: Finished complementDD. Result has 61 states, 61 states have (on average 216.0) internal successors, (13176), 61 states have internal predecessors, (13176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:16,064 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 3084 predicate places. [2023-11-29 20:49:16,064 INFO L500 AbstractCegarLoop]: Abstraction has has 3285 places, 3699 transitions, 368381 flow [2023-11-29 20:49:16,065 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:16,065 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:49:16,065 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:49:16,065 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-11-29 20:49:16,065 INFO L425 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:49:16,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:49:16,065 INFO L85 PathProgramCache]: Analyzing trace with hash -546439315, now seen corresponding path program 51 times [2023-11-29 20:49:16,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:49:16,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962433157] [2023-11-29 20:49:16,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:49:16,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:49:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:49:17,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:49:17,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:49:17,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962433157] [2023-11-29 20:49:17,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962433157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:49:17,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:49:17,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:49:17,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086987744] [2023-11-29 20:49:17,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:49:17,201 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:49:17,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:49:17,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:49:17,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:49:17,204 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:49:17,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 3285 places, 3699 transitions, 368381 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:17,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:49:17,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:49:17,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:49:30,504 INFO L124 PetriNetUnfolderBase]: 1700/6703 cut-off events. [2023-11-29 20:49:30,505 INFO L125 PetriNetUnfolderBase]: For 756379/782773 co-relation queries the response was YES. [2023-11-29 20:49:30,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259707 conditions, 6703 events. 1700/6703 cut-off events. For 756379/782773 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 58209 event pairs, 9 based on Foata normal form. 74/6504 useless extension candidates. Maximal degree in co-relation 188314. Up to 3385 conditions per place. [2023-11-29 20:49:30,721 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1495 selfloop transitions, 261 changer transitions 1868/3721 dead transitions. [2023-11-29 20:49:30,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3346 places, 3721 transitions, 377879 flow [2023-11-29 20:49:30,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-11-29 20:49:30,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2023-11-29 20:49:30,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 7120 transitions. [2023-11-29 20:49:30,724 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5316606929510155 [2023-11-29 20:49:30,724 INFO L72 ComplementDD]: Start complementDD. Operand 62 states and 7120 transitions. [2023-11-29 20:49:30,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 7120 transitions. [2023-11-29 20:49:30,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:49:30,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 62 states and 7120 transitions. [2023-11-29 20:49:30,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 63 states, 62 states have (on average 114.83870967741936) internal successors, (7120), 62 states have internal predecessors, (7120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:30,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 63 states, 63 states have (on average 216.0) internal successors, (13608), 63 states have internal predecessors, (13608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:30,735 INFO L81 ComplementDD]: Finished complementDD. Result has 63 states, 63 states have (on average 216.0) internal successors, (13608), 63 states have internal predecessors, (13608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:30,735 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 3145 predicate places. [2023-11-29 20:49:30,735 INFO L500 AbstractCegarLoop]: Abstraction has has 3346 places, 3721 transitions, 377879 flow [2023-11-29 20:49:30,736 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:30,736 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:49:30,736 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:49:30,736 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-11-29 20:49:30,736 INFO L425 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:49:30,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:49:30,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1375052013, now seen corresponding path program 52 times [2023-11-29 20:49:30,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:49:30,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781675667] [2023-11-29 20:49:30,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:49:30,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:49:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:49:31,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:49:31,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:49:31,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781675667] [2023-11-29 20:49:31,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781675667] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:49:31,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:49:31,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:49:31,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151369311] [2023-11-29 20:49:31,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:49:31,859 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:49:31,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:49:31,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:49:31,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:49:31,862 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:49:31,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 3346 places, 3721 transitions, 377879 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:31,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:49:31,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:49:31,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:49:45,423 INFO L124 PetriNetUnfolderBase]: 1699/6728 cut-off events. [2023-11-29 20:49:45,424 INFO L125 PetriNetUnfolderBase]: For 769708/794034 co-relation queries the response was YES. [2023-11-29 20:49:45,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265728 conditions, 6728 events. 1699/6728 cut-off events. For 769708/794034 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 58666 event pairs, 9 based on Foata normal form. 83/6538 useless extension candidates. Maximal degree in co-relation 191962. Up to 3402 conditions per place. [2023-11-29 20:49:45,561 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1490 selfloop transitions, 262 changer transitions 1892/3741 dead transitions. [2023-11-29 20:49:45,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3411 places, 3741 transitions, 387253 flow [2023-11-29 20:49:45,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-11-29 20:49:45,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2023-11-29 20:49:45,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 7590 transitions. [2023-11-29 20:49:45,565 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5324074074074074 [2023-11-29 20:49:45,565 INFO L72 ComplementDD]: Start complementDD. Operand 66 states and 7590 transitions. [2023-11-29 20:49:45,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 7590 transitions. [2023-11-29 20:49:45,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:49:45,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 66 states and 7590 transitions. [2023-11-29 20:49:45,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 67 states, 66 states have (on average 115.0) internal successors, (7590), 66 states have internal predecessors, (7590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:45,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 67 states, 67 states have (on average 216.0) internal successors, (14472), 67 states have internal predecessors, (14472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:45,576 INFO L81 ComplementDD]: Finished complementDD. Result has 67 states, 67 states have (on average 216.0) internal successors, (14472), 67 states have internal predecessors, (14472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:45,577 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 3210 predicate places. [2023-11-29 20:49:45,577 INFO L500 AbstractCegarLoop]: Abstraction has has 3411 places, 3741 transitions, 387253 flow [2023-11-29 20:49:45,577 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:45,577 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:49:45,577 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:49:45,577 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-11-29 20:49:45,577 INFO L425 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:49:45,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:49:45,578 INFO L85 PathProgramCache]: Analyzing trace with hash 2137955731, now seen corresponding path program 53 times [2023-11-29 20:49:45,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:49:45,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719455640] [2023-11-29 20:49:45,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:49:45,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:49:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:49:46,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:49:46,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:49:46,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719455640] [2023-11-29 20:49:46,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719455640] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:49:46,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:49:46,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:49:46,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295068155] [2023-11-29 20:49:46,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:49:46,779 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:49:46,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:49:46,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:49:46,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:49:46,781 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:49:46,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 3411 places, 3741 transitions, 387253 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:49:46,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:49:46,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:49:46,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:50:00,612 INFO L124 PetriNetUnfolderBase]: 1699/6748 cut-off events. [2023-11-29 20:50:00,613 INFO L125 PetriNetUnfolderBase]: For 837747/869751 co-relation queries the response was YES. [2023-11-29 20:50:00,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270563 conditions, 6748 events. 1699/6748 cut-off events. For 837747/869751 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 58968 event pairs, 12 based on Foata normal form. 69/6542 useless extension candidates. Maximal degree in co-relation 209521. Up to 3399 conditions per place. [2023-11-29 20:50:00,740 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1454 selfloop transitions, 237 changer transitions 1950/3738 dead transitions. [2023-11-29 20:50:00,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3475 places, 3738 transitions, 394217 flow [2023-11-29 20:50:00,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-11-29 20:50:00,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2023-11-29 20:50:00,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 7460 transitions. [2023-11-29 20:50:00,745 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5313390313390314 [2023-11-29 20:50:00,745 INFO L72 ComplementDD]: Start complementDD. Operand 65 states and 7460 transitions. [2023-11-29 20:50:00,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 7460 transitions. [2023-11-29 20:50:00,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:50:00,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 65 states and 7460 transitions. [2023-11-29 20:50:00,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 66 states, 65 states have (on average 114.76923076923077) internal successors, (7460), 65 states have internal predecessors, (7460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:00,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 66 states, 66 states have (on average 216.0) internal successors, (14256), 66 states have internal predecessors, (14256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:00,758 INFO L81 ComplementDD]: Finished complementDD. Result has 66 states, 66 states have (on average 216.0) internal successors, (14256), 66 states have internal predecessors, (14256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:00,758 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 3274 predicate places. [2023-11-29 20:50:00,758 INFO L500 AbstractCegarLoop]: Abstraction has has 3475 places, 3738 transitions, 394217 flow [2023-11-29 20:50:00,759 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:00,759 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:50:00,759 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:50:00,759 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-11-29 20:50:00,759 INFO L425 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:50:00,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:50:00,759 INFO L85 PathProgramCache]: Analyzing trace with hash -946247343, now seen corresponding path program 54 times [2023-11-29 20:50:00,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:50:00,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233409245] [2023-11-29 20:50:00,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:50:00,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:50:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:50:01,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:50:01,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:50:01,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233409245] [2023-11-29 20:50:01,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233409245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:50:01,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:50:01,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:50:01,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439322639] [2023-11-29 20:50:01,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:50:01,814 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:50:01,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:50:01,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:50:01,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:50:01,816 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:50:01,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 3475 places, 3738 transitions, 394217 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:01,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:50:01,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:50:01,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:50:17,160 INFO L124 PetriNetUnfolderBase]: 1713/6845 cut-off events. [2023-11-29 20:50:17,160 INFO L125 PetriNetUnfolderBase]: For 845274/872824 co-relation queries the response was YES. [2023-11-29 20:50:17,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280173 conditions, 6845 events. 1713/6845 cut-off events. For 845274/872824 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 60139 event pairs, 8 based on Foata normal form. 71/6636 useless extension candidates. Maximal degree in co-relation 215745. Up to 3475 conditions per place. [2023-11-29 20:50:17,295 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1461 selfloop transitions, 276 changer transitions 1977/3811 dead transitions. [2023-11-29 20:50:17,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3541 places, 3811 transitions, 409544 flow [2023-11-29 20:50:17,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-11-29 20:50:17,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2023-11-29 20:50:17,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 7695 transitions. [2023-11-29 20:50:17,298 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5317164179104478 [2023-11-29 20:50:17,299 INFO L72 ComplementDD]: Start complementDD. Operand 67 states and 7695 transitions. [2023-11-29 20:50:17,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 7695 transitions. [2023-11-29 20:50:17,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:50:17,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 67 states and 7695 transitions. [2023-11-29 20:50:17,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 68 states, 67 states have (on average 114.85074626865672) internal successors, (7695), 67 states have internal predecessors, (7695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:17,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 68 states, 68 states have (on average 216.0) internal successors, (14688), 68 states have internal predecessors, (14688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:17,310 INFO L81 ComplementDD]: Finished complementDD. Result has 68 states, 68 states have (on average 216.0) internal successors, (14688), 68 states have internal predecessors, (14688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:17,311 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 3340 predicate places. [2023-11-29 20:50:17,311 INFO L500 AbstractCegarLoop]: Abstraction has has 3541 places, 3811 transitions, 409544 flow [2023-11-29 20:50:17,311 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:17,311 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:50:17,311 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:50:17,312 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-11-29 20:50:17,312 INFO L425 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:50:17,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:50:17,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1483811437, now seen corresponding path program 55 times [2023-11-29 20:50:17,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:50:17,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675563719] [2023-11-29 20:50:17,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:50:17,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:50:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:50:18,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:50:18,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:50:18,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675563719] [2023-11-29 20:50:18,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675563719] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:50:18,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:50:18,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:50:18,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627232277] [2023-11-29 20:50:18,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:50:18,476 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:50:18,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:50:18,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:50:18,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:50:18,478 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:50:18,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 3541 places, 3811 transitions, 409544 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:18,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:50:18,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:50:18,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:50:34,664 INFO L124 PetriNetUnfolderBase]: 1722/6924 cut-off events. [2023-11-29 20:50:34,665 INFO L125 PetriNetUnfolderBase]: For 886519/912863 co-relation queries the response was YES. [2023-11-29 20:50:34,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289383 conditions, 6924 events. 1722/6924 cut-off events. For 886519/912863 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 61191 event pairs, 5 based on Foata normal form. 75/6718 useless extension candidates. Maximal degree in co-relation 221487. Up to 3542 conditions per place. [2023-11-29 20:50:34,805 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1505 selfloop transitions, 273 changer transitions 2004/3879 dead transitions. [2023-11-29 20:50:34,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3605 places, 3879 transitions, 424603 flow [2023-11-29 20:50:34,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-11-29 20:50:34,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2023-11-29 20:50:34,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 7469 transitions. [2023-11-29 20:50:34,809 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.531980056980057 [2023-11-29 20:50:34,809 INFO L72 ComplementDD]: Start complementDD. Operand 65 states and 7469 transitions. [2023-11-29 20:50:34,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 7469 transitions. [2023-11-29 20:50:34,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:50:34,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 65 states and 7469 transitions. [2023-11-29 20:50:34,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 66 states, 65 states have (on average 114.9076923076923) internal successors, (7469), 65 states have internal predecessors, (7469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:34,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 66 states, 66 states have (on average 216.0) internal successors, (14256), 66 states have internal predecessors, (14256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:34,820 INFO L81 ComplementDD]: Finished complementDD. Result has 66 states, 66 states have (on average 216.0) internal successors, (14256), 66 states have internal predecessors, (14256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:34,821 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 3404 predicate places. [2023-11-29 20:50:34,821 INFO L500 AbstractCegarLoop]: Abstraction has has 3605 places, 3879 transitions, 424603 flow [2023-11-29 20:50:34,821 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:34,821 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:50:34,821 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:50:34,822 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-11-29 20:50:34,822 INFO L425 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:50:34,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:50:34,822 INFO L85 PathProgramCache]: Analyzing trace with hash -799581173, now seen corresponding path program 56 times [2023-11-29 20:50:34,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:50:34,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446729625] [2023-11-29 20:50:34,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:50:34,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:50:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:50:36,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:50:36,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:50:36,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446729625] [2023-11-29 20:50:36,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446729625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:50:36,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:50:36,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:50:36,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948245102] [2023-11-29 20:50:36,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:50:36,010 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:50:36,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:50:36,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:50:36,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:50:36,012 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:50:36,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 3605 places, 3879 transitions, 424603 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:36,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:50:36,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:50:36,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:50:52,709 INFO L124 PetriNetUnfolderBase]: 1739/7053 cut-off events. [2023-11-29 20:50:52,709 INFO L125 PetriNetUnfolderBase]: For 924959/952687 co-relation queries the response was YES. [2023-11-29 20:50:52,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301151 conditions, 7053 events. 1739/7053 cut-off events. For 924959/952687 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 62880 event pairs, 11 based on Foata normal form. 67/6830 useless extension candidates. Maximal degree in co-relation 228448. Up to 3649 conditions per place. [2023-11-29 20:50:52,854 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1566 selfloop transitions, 283 changer transitions 2034/3980 dead transitions. [2023-11-29 20:50:52,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3670 places, 3980 transitions, 443714 flow [2023-11-29 20:50:52,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-11-29 20:50:52,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2023-11-29 20:50:52,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 7603 transitions. [2023-11-29 20:50:52,858 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5333193041526375 [2023-11-29 20:50:52,858 INFO L72 ComplementDD]: Start complementDD. Operand 66 states and 7603 transitions. [2023-11-29 20:50:52,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 7603 transitions. [2023-11-29 20:50:52,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:50:52,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 66 states and 7603 transitions. [2023-11-29 20:50:52,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 67 states, 66 states have (on average 115.1969696969697) internal successors, (7603), 66 states have internal predecessors, (7603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:52,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 67 states, 67 states have (on average 216.0) internal successors, (14472), 67 states have internal predecessors, (14472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:52,870 INFO L81 ComplementDD]: Finished complementDD. Result has 67 states, 67 states have (on average 216.0) internal successors, (14472), 67 states have internal predecessors, (14472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:52,870 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 3469 predicate places. [2023-11-29 20:50:52,870 INFO L500 AbstractCegarLoop]: Abstraction has has 3670 places, 3980 transitions, 443714 flow [2023-11-29 20:50:52,871 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:52,871 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:50:52,871 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:50:52,871 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-11-29 20:50:52,871 INFO L425 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:50:52,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:50:52,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1600320451, now seen corresponding path program 57 times [2023-11-29 20:50:52,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:50:52,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591437145] [2023-11-29 20:50:52,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:50:52,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:50:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:50:54,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:50:54,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:50:54,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591437145] [2023-11-29 20:50:54,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591437145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:50:54,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:50:54,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:50:54,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484330651] [2023-11-29 20:50:54,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:50:54,098 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:50:54,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:50:54,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:50:54,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:50:54,100 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:50:54,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 3670 places, 3980 transitions, 443714 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:50:54,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:50:54,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:50:54,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:51:12,778 INFO L124 PetriNetUnfolderBase]: 1741/7178 cut-off events. [2023-11-29 20:51:12,778 INFO L125 PetriNetUnfolderBase]: For 1022806/1057044 co-relation queries the response was YES. [2023-11-29 20:51:12,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309605 conditions, 7178 events. 1741/7178 cut-off events. For 1022806/1057044 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 64427 event pairs, 8 based on Foata normal form. 71/6949 useless extension candidates. Maximal degree in co-relation 233248. Up to 3697 conditions per place. [2023-11-29 20:51:12,930 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1590 selfloop transitions, 282 changer transitions 2061/4030 dead transitions. [2023-11-29 20:51:12,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3734 places, 4030 transitions, 457295 flow [2023-11-29 20:51:12,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-11-29 20:51:12,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2023-11-29 20:51:12,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 7499 transitions. [2023-11-29 20:51:12,934 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5341168091168091 [2023-11-29 20:51:12,934 INFO L72 ComplementDD]: Start complementDD. Operand 65 states and 7499 transitions. [2023-11-29 20:51:12,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 7499 transitions. [2023-11-29 20:51:12,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:51:12,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 65 states and 7499 transitions. [2023-11-29 20:51:12,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 66 states, 65 states have (on average 115.36923076923077) internal successors, (7499), 65 states have internal predecessors, (7499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:51:12,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 66 states, 66 states have (on average 216.0) internal successors, (14256), 66 states have internal predecessors, (14256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:51:12,946 INFO L81 ComplementDD]: Finished complementDD. Result has 66 states, 66 states have (on average 216.0) internal successors, (14256), 66 states have internal predecessors, (14256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:51:12,947 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 3533 predicate places. [2023-11-29 20:51:12,947 INFO L500 AbstractCegarLoop]: Abstraction has has 3734 places, 4030 transitions, 457295 flow [2023-11-29 20:51:12,947 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:51:12,947 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:51:12,947 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:51:12,947 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-11-29 20:51:12,947 INFO L425 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:51:12,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:51:12,948 INFO L85 PathProgramCache]: Analyzing trace with hash -665026907, now seen corresponding path program 58 times [2023-11-29 20:51:12,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:51:12,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544299077] [2023-11-29 20:51:12,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:51:12,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:51:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:51:14,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:51:14,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:51:14,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544299077] [2023-11-29 20:51:14,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544299077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:51:14,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:51:14,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:51:14,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396035289] [2023-11-29 20:51:14,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:51:14,079 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:51:14,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:51:14,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:51:14,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:51:14,081 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:51:14,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 3734 places, 4030 transitions, 457295 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:51:14,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:51:14,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:51:14,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:51:32,237 INFO L124 PetriNetUnfolderBase]: 1741/7170 cut-off events. [2023-11-29 20:51:32,237 INFO L125 PetriNetUnfolderBase]: For 1043708/1077248 co-relation queries the response was YES. [2023-11-29 20:51:32,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314722 conditions, 7170 events. 1741/7170 cut-off events. For 1043708/1077248 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 64322 event pairs, 4 based on Foata normal form. 63/6932 useless extension candidates. Maximal degree in co-relation 237231. Up to 3694 conditions per place. [2023-11-29 20:51:32,384 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1561 selfloop transitions, 272 changer transitions 2100/4030 dead transitions. [2023-11-29 20:51:32,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3796 places, 4030 transitions, 465164 flow [2023-11-29 20:51:32,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-11-29 20:51:32,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2023-11-29 20:51:32,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 7262 transitions. [2023-11-29 20:51:32,387 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5336566725455615 [2023-11-29 20:51:32,387 INFO L72 ComplementDD]: Start complementDD. Operand 63 states and 7262 transitions. [2023-11-29 20:51:32,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 7262 transitions. [2023-11-29 20:51:32,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:51:32,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 63 states and 7262 transitions. [2023-11-29 20:51:32,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 64 states, 63 states have (on average 115.26984126984127) internal successors, (7262), 63 states have internal predecessors, (7262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:51:32,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 64 states, 64 states have (on average 216.0) internal successors, (13824), 64 states have internal predecessors, (13824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:51:32,398 INFO L81 ComplementDD]: Finished complementDD. Result has 64 states, 64 states have (on average 216.0) internal successors, (13824), 64 states have internal predecessors, (13824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:51:32,399 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 3595 predicate places. [2023-11-29 20:51:32,399 INFO L500 AbstractCegarLoop]: Abstraction has has 3796 places, 4030 transitions, 465164 flow [2023-11-29 20:51:32,399 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:51:32,399 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:51:32,399 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:51:32,399 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-11-29 20:51:32,400 INFO L425 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:51:32,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:51:32,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1253122511, now seen corresponding path program 59 times [2023-11-29 20:51:32,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:51:32,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986934387] [2023-11-29 20:51:32,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:51:32,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:51:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:51:33,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:51:33,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:51:33,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986934387] [2023-11-29 20:51:33,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986934387] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:51:33,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:51:33,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:51:33,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138331037] [2023-11-29 20:51:33,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:51:33,616 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:51:33,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:51:33,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:51:33,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:51:33,620 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:51:33,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 3796 places, 4030 transitions, 465164 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:51:33,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:51:33,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:51:33,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:51:52,171 INFO L124 PetriNetUnfolderBase]: 1740/7205 cut-off events. [2023-11-29 20:51:52,171 INFO L125 PetriNetUnfolderBase]: For 1053452/1079412 co-relation queries the response was YES. [2023-11-29 20:51:52,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321353 conditions, 7205 events. 1740/7205 cut-off events. For 1053452/1079412 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 64894 event pairs, 10 based on Foata normal form. 75/6980 useless extension candidates. Maximal degree in co-relation 225929. Up to 3713 conditions per place. [2023-11-29 20:51:52,322 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1555 selfloop transitions, 275 changer transitions 2129/4056 dead transitions. [2023-11-29 20:51:52,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3859 places, 4056 transitions, 476156 flow [2023-11-29 20:51:52,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-11-29 20:51:52,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2023-11-29 20:51:52,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 7347 transitions. [2023-11-29 20:51:52,327 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5314670138888888 [2023-11-29 20:51:52,327 INFO L72 ComplementDD]: Start complementDD. Operand 64 states and 7347 transitions. [2023-11-29 20:51:52,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 7347 transitions. [2023-11-29 20:51:52,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:51:52,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 64 states and 7347 transitions. [2023-11-29 20:51:52,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 65 states, 64 states have (on average 114.796875) internal successors, (7347), 64 states have internal predecessors, (7347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:51:52,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 65 states, 65 states have (on average 216.0) internal successors, (14040), 65 states have internal predecessors, (14040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:51:52,339 INFO L81 ComplementDD]: Finished complementDD. Result has 65 states, 65 states have (on average 216.0) internal successors, (14040), 65 states have internal predecessors, (14040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:51:52,339 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 3658 predicate places. [2023-11-29 20:51:52,339 INFO L500 AbstractCegarLoop]: Abstraction has has 3859 places, 4056 transitions, 476156 flow [2023-11-29 20:51:52,339 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:51:52,339 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:51:52,340 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:51:52,340 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-11-29 20:51:52,340 INFO L425 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:51:52,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:51:52,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1427720083, now seen corresponding path program 60 times [2023-11-29 20:51:52,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:51:52,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271529895] [2023-11-29 20:51:52,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:51:52,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:51:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:51:53,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:51:53,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:51:53,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271529895] [2023-11-29 20:51:53,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271529895] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:51:53,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:51:53,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:51:53,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480454467] [2023-11-29 20:51:53,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:51:53,464 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:51:53,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:51:53,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:51:53,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:51:53,466 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:51:53,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 3859 places, 4056 transitions, 476156 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:51:53,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:51:53,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:51:53,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:52:15,064 INFO L124 PetriNetUnfolderBase]: 1740/7229 cut-off events. [2023-11-29 20:52:15,064 INFO L125 PetriNetUnfolderBase]: For 1172759/1213375 co-relation queries the response was YES. [2023-11-29 20:52:15,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326515 conditions, 7229 events. 1740/7229 cut-off events. For 1172759/1213375 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 65190 event pairs, 8 based on Foata normal form. 65/6992 useless extension candidates. Maximal degree in co-relation 229689. Up to 3710 conditions per place. [2023-11-29 20:52:15,333 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1516 selfloop transitions, 253 changer transitions 2189/4055 dead transitions. [2023-11-29 20:52:15,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3926 places, 4055 transitions, 483955 flow [2023-11-29 20:52:15,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-11-29 20:52:15,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2023-11-29 20:52:15,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 7819 transitions. [2023-11-29 20:52:15,337 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5323393246187363 [2023-11-29 20:52:15,337 INFO L72 ComplementDD]: Start complementDD. Operand 68 states and 7819 transitions. [2023-11-29 20:52:15,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 7819 transitions. [2023-11-29 20:52:15,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:52:15,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 68 states and 7819 transitions. [2023-11-29 20:52:15,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 69 states, 68 states have (on average 114.98529411764706) internal successors, (7819), 68 states have internal predecessors, (7819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:52:15,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 69 states, 69 states have (on average 216.0) internal successors, (14904), 69 states have internal predecessors, (14904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:52:15,350 INFO L81 ComplementDD]: Finished complementDD. Result has 69 states, 69 states have (on average 216.0) internal successors, (14904), 69 states have internal predecessors, (14904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:52:15,351 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 3725 predicate places. [2023-11-29 20:52:15,351 INFO L500 AbstractCegarLoop]: Abstraction has has 3926 places, 4055 transitions, 483955 flow [2023-11-29 20:52:15,351 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:52:15,351 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:52:15,352 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:52:15,352 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-11-29 20:52:15,352 INFO L425 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:52:15,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:52:15,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1067135311, now seen corresponding path program 61 times [2023-11-29 20:52:15,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:52:15,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23053787] [2023-11-29 20:52:15,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:52:15,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:52:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:52:16,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:52:16,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:52:16,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23053787] [2023-11-29 20:52:16,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23053787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:52:16,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:52:16,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:52:16,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618471562] [2023-11-29 20:52:16,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:52:16,546 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:52:16,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:52:16,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:52:16,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:52:16,548 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:52:16,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 3926 places, 4055 transitions, 483955 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:52:16,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:52:16,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:52:16,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:52:38,143 INFO L124 PetriNetUnfolderBase]: 1740/7237 cut-off events. [2023-11-29 20:52:38,143 INFO L125 PetriNetUnfolderBase]: For 1105266/1127590 co-relation queries the response was YES. [2023-11-29 20:52:38,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334832 conditions, 7237 events. 1740/7237 cut-off events. For 1105266/1127590 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 65445 event pairs, 10 based on Foata normal form. 77/7012 useless extension candidates. Maximal degree in co-relation 233874. Up to 3753 conditions per place. [2023-11-29 20:52:38,296 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1522 selfloop transitions, 268 changer transitions 2222/4109 dead transitions. [2023-11-29 20:52:38,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3993 places, 4109 transitions, 498585 flow [2023-11-29 20:52:38,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-11-29 20:52:38,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2023-11-29 20:52:38,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 7820 transitions. [2023-11-29 20:52:38,300 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5324074074074074 [2023-11-29 20:52:38,300 INFO L72 ComplementDD]: Start complementDD. Operand 68 states and 7820 transitions. [2023-11-29 20:52:38,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 7820 transitions. [2023-11-29 20:52:38,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:52:38,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 68 states and 7820 transitions. [2023-11-29 20:52:38,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 69 states, 68 states have (on average 115.0) internal successors, (7820), 68 states have internal predecessors, (7820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:52:38,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 69 states, 69 states have (on average 216.0) internal successors, (14904), 69 states have internal predecessors, (14904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:52:38,312 INFO L81 ComplementDD]: Finished complementDD. Result has 69 states, 69 states have (on average 216.0) internal successors, (14904), 69 states have internal predecessors, (14904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:52:38,312 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 3792 predicate places. [2023-11-29 20:52:38,312 INFO L500 AbstractCegarLoop]: Abstraction has has 3993 places, 4109 transitions, 498585 flow [2023-11-29 20:52:38,312 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:52:38,313 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:52:38,313 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:52:38,313 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-11-29 20:52:38,313 INFO L425 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:52:38,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:52:38,313 INFO L85 PathProgramCache]: Analyzing trace with hash -779261745, now seen corresponding path program 62 times [2023-11-29 20:52:38,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:52:38,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612653421] [2023-11-29 20:52:38,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:52:38,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:52:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:52:39,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:52:39,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:52:39,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612653421] [2023-11-29 20:52:39,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612653421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:52:39,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:52:39,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:52:39,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143355906] [2023-11-29 20:52:39,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:52:39,457 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:52:39,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:52:39,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:52:39,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:52:39,459 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:52:39,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 3993 places, 4109 transitions, 498585 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:52:39,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:52:39,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:52:39,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:52:59,590 INFO L124 PetriNetUnfolderBase]: 1739/7240 cut-off events. [2023-11-29 20:52:59,590 INFO L125 PetriNetUnfolderBase]: For 1179770/1206618 co-relation queries the response was YES. [2023-11-29 20:52:59,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341565 conditions, 7240 events. 1739/7240 cut-off events. For 1179770/1206618 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 65791 event pairs, 5 based on Foata normal form. 81/7024 useless extension candidates. Maximal degree in co-relation 254042. Up to 3772 conditions per place. [2023-11-29 20:52:59,750 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1524 selfloop transitions, 265 changer transitions 2251/4137 dead transitions. [2023-11-29 20:52:59,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 4056 places, 4137 transitions, 510143 flow [2023-11-29 20:52:59,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-11-29 20:52:59,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2023-11-29 20:52:59,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 7337 transitions. [2023-11-29 20:52:59,754 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5307436342592593 [2023-11-29 20:52:59,754 INFO L72 ComplementDD]: Start complementDD. Operand 64 states and 7337 transitions. [2023-11-29 20:52:59,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 7337 transitions. [2023-11-29 20:52:59,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:52:59,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 64 states and 7337 transitions. [2023-11-29 20:52:59,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 65 states, 64 states have (on average 114.640625) internal successors, (7337), 64 states have internal predecessors, (7337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:52:59,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 65 states, 65 states have (on average 216.0) internal successors, (14040), 65 states have internal predecessors, (14040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:52:59,766 INFO L81 ComplementDD]: Finished complementDD. Result has 65 states, 65 states have (on average 216.0) internal successors, (14040), 65 states have internal predecessors, (14040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:52:59,766 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 3855 predicate places. [2023-11-29 20:52:59,766 INFO L500 AbstractCegarLoop]: Abstraction has has 4056 places, 4137 transitions, 510143 flow [2023-11-29 20:52:59,766 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:52:59,767 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:52:59,767 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:52:59,767 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-11-29 20:52:59,767 INFO L425 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:52:59,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:52:59,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1086056561, now seen corresponding path program 63 times [2023-11-29 20:52:59,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:52:59,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219587611] [2023-11-29 20:52:59,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:52:59,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:52:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:53:00,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:53:00,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:53:00,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219587611] [2023-11-29 20:53:00,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219587611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:53:00,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:53:00,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:53:00,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939247189] [2023-11-29 20:53:00,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:53:00,949 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:53:00,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:53:00,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:53:00,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:53:00,952 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:53:00,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 4056 places, 4137 transitions, 510143 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:53:00,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:53:00,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:53:00,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:53:23,763 INFO L124 PetriNetUnfolderBase]: 1738/7280 cut-off events. [2023-11-29 20:53:23,763 INFO L125 PetriNetUnfolderBase]: For 1253311/1285421 co-relation queries the response was YES. [2023-11-29 20:53:23,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348694 conditions, 7280 events. 1738/7280 cut-off events. For 1253311/1285421 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 66268 event pairs, 12 based on Foata normal form. 83/7062 useless extension candidates. Maximal degree in co-relation 242068. Up to 3796 conditions per place. [2023-11-29 20:53:23,932 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1521 selfloop transitions, 266 changer transitions 2280/4164 dead transitions. [2023-11-29 20:53:23,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 4120 places, 4164 transitions, 521685 flow [2023-11-29 20:53:23,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-11-29 20:53:23,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2023-11-29 20:53:23,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 7474 transitions. [2023-11-29 20:53:23,936 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5323361823361823 [2023-11-29 20:53:23,936 INFO L72 ComplementDD]: Start complementDD. Operand 65 states and 7474 transitions. [2023-11-29 20:53:23,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 7474 transitions. [2023-11-29 20:53:23,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:53:23,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 65 states and 7474 transitions. [2023-11-29 20:53:23,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 66 states, 65 states have (on average 114.98461538461538) internal successors, (7474), 65 states have internal predecessors, (7474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:53:23,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 66 states, 66 states have (on average 216.0) internal successors, (14256), 66 states have internal predecessors, (14256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:53:23,947 INFO L81 ComplementDD]: Finished complementDD. Result has 66 states, 66 states have (on average 216.0) internal successors, (14256), 66 states have internal predecessors, (14256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:53:23,947 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 3919 predicate places. [2023-11-29 20:53:23,948 INFO L500 AbstractCegarLoop]: Abstraction has has 4120 places, 4164 transitions, 521685 flow [2023-11-29 20:53:23,948 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:53:23,948 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:53:23,948 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:53:23,948 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-11-29 20:53:23,948 INFO L425 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:53:23,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:53:23,949 INFO L85 PathProgramCache]: Analyzing trace with hash -257370507, now seen corresponding path program 64 times [2023-11-29 20:53:23,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:53:23,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293863377] [2023-11-29 20:53:23,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:53:23,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:53:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:53:25,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:53:25,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:53:25,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293863377] [2023-11-29 20:53:25,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293863377] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:53:25,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:53:25,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:53:25,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053144793] [2023-11-29 20:53:25,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:53:25,188 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:53:25,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:53:25,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:53:25,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:53:25,190 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:53:25,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 4120 places, 4164 transitions, 521685 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:53:25,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:53:25,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:53:25,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:53:46,217 INFO L124 PetriNetUnfolderBase]: 1737/7308 cut-off events. [2023-11-29 20:53:46,217 INFO L125 PetriNetUnfolderBase]: For 1269920/1298308 co-relation queries the response was YES. [2023-11-29 20:53:46,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355481 conditions, 7308 events. 1737/7308 cut-off events. For 1269920/1298308 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 66736 event pairs, 15 based on Foata normal form. 83/7087 useless extension candidates. Maximal degree in co-relation 245950. Up to 3814 conditions per place. [2023-11-29 20:53:46,383 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1516 selfloop transitions, 255 changer transitions 2317/4185 dead transitions. [2023-11-29 20:53:46,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 4188 places, 4185 transitions, 532555 flow [2023-11-29 20:53:46,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-11-29 20:53:46,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2023-11-29 20:53:46,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 7947 transitions. [2023-11-29 20:53:46,387 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5332125603864735 [2023-11-29 20:53:46,387 INFO L72 ComplementDD]: Start complementDD. Operand 69 states and 7947 transitions. [2023-11-29 20:53:46,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 7947 transitions. [2023-11-29 20:53:46,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:53:46,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 69 states and 7947 transitions. [2023-11-29 20:53:46,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 70 states, 69 states have (on average 115.17391304347827) internal successors, (7947), 69 states have internal predecessors, (7947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:53:46,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 70 states, 70 states have (on average 216.0) internal successors, (15120), 70 states have internal predecessors, (15120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:53:46,402 INFO L81 ComplementDD]: Finished complementDD. Result has 70 states, 70 states have (on average 216.0) internal successors, (15120), 70 states have internal predecessors, (15120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:53:46,402 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 3987 predicate places. [2023-11-29 20:53:46,402 INFO L500 AbstractCegarLoop]: Abstraction has has 4188 places, 4185 transitions, 532555 flow [2023-11-29 20:53:46,403 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:53:46,403 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:53:46,403 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:53:46,403 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-11-29 20:53:46,403 INFO L425 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:53:46,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:53:46,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1962964307, now seen corresponding path program 65 times [2023-11-29 20:53:46,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:53:46,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051549310] [2023-11-29 20:53:46,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:53:46,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:53:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:53:47,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:53:47,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:53:47,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051549310] [2023-11-29 20:53:47,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051549310] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:53:47,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:53:47,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:53:47,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331496082] [2023-11-29 20:53:47,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:53:47,568 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:53:47,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:53:47,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:53:47,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:53:47,571 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:53:47,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 4188 places, 4185 transitions, 532555 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:53:47,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:53:47,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:53:47,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:54:10,110 INFO L124 PetriNetUnfolderBase]: 1737/7276 cut-off events. [2023-11-29 20:54:10,110 INFO L125 PetriNetUnfolderBase]: For 1293757/1320394 co-relation queries the response was YES. [2023-11-29 20:54:10,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 360688 conditions, 7276 events. 1737/7276 cut-off events. For 1293757/1320394 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 66371 event pairs, 10 based on Foata normal form. 104/7078 useless extension candidates. Maximal degree in co-relation 249679. Up to 3811 conditions per place. [2023-11-29 20:54:10,275 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1486 selfloop transitions, 254 changer transitions 2358/4195 dead transitions. [2023-11-29 20:54:10,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 4250 places, 4195 transitions, 542066 flow [2023-11-29 20:54:10,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-11-29 20:54:10,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2023-11-29 20:54:10,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 7253 transitions. [2023-11-29 20:54:10,278 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5329952968841858 [2023-11-29 20:54:10,278 INFO L72 ComplementDD]: Start complementDD. Operand 63 states and 7253 transitions. [2023-11-29 20:54:10,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 7253 transitions. [2023-11-29 20:54:10,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:54:10,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 63 states and 7253 transitions. [2023-11-29 20:54:10,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 64 states, 63 states have (on average 115.12698412698413) internal successors, (7253), 63 states have internal predecessors, (7253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:54:10,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 64 states, 64 states have (on average 216.0) internal successors, (13824), 64 states have internal predecessors, (13824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:54:10,290 INFO L81 ComplementDD]: Finished complementDD. Result has 64 states, 64 states have (on average 216.0) internal successors, (13824), 64 states have internal predecessors, (13824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:54:10,291 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 4049 predicate places. [2023-11-29 20:54:10,291 INFO L500 AbstractCegarLoop]: Abstraction has has 4250 places, 4195 transitions, 542066 flow [2023-11-29 20:54:10,291 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:54:10,291 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:54:10,291 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:54:10,291 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-11-29 20:54:10,292 INFO L425 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:54:10,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:54:10,292 INFO L85 PathProgramCache]: Analyzing trace with hash -422714535, now seen corresponding path program 66 times [2023-11-29 20:54:10,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:54:10,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248296134] [2023-11-29 20:54:10,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:54:10,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:54:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:54:11,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:54:11,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:54:11,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248296134] [2023-11-29 20:54:11,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248296134] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:54:11,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:54:11,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:54:11,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012106998] [2023-11-29 20:54:11,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:54:11,474 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:54:11,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:54:11,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:54:11,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:54:11,476 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:54:11,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 4250 places, 4195 transitions, 542066 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:54:11,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:54:11,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:54:11,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:54:33,311 INFO L124 PetriNetUnfolderBase]: 1737/7302 cut-off events. [2023-11-29 20:54:33,312 INFO L125 PetriNetUnfolderBase]: For 1343489/1373280 co-relation queries the response was YES. [2023-11-29 20:54:33,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365947 conditions, 7302 events. 1737/7302 cut-off events. For 1343489/1373280 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 66525 event pairs, 15 based on Foata normal form. 79/7078 useless extension candidates. Maximal degree in co-relation 253464. Up to 3808 conditions per place. [2023-11-29 20:54:33,479 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1453 selfloop transitions, 253 changer transitions 2389/4192 dead transitions. [2023-11-29 20:54:33,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 4310 places, 4192 transitions, 549860 flow [2023-11-29 20:54:33,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-11-29 20:54:33,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2023-11-29 20:54:33,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 7019 transitions. [2023-11-29 20:54:33,482 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5327109896782027 [2023-11-29 20:54:33,482 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 7019 transitions. [2023-11-29 20:54:33,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 7019 transitions. [2023-11-29 20:54:33,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:54:33,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 7019 transitions. [2023-11-29 20:54:33,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 62 states, 61 states have (on average 115.06557377049181) internal successors, (7019), 61 states have internal predecessors, (7019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:54:33,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 62 states, 62 states have (on average 216.0) internal successors, (13392), 62 states have internal predecessors, (13392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:54:33,493 INFO L81 ComplementDD]: Finished complementDD. Result has 62 states, 62 states have (on average 216.0) internal successors, (13392), 62 states have internal predecessors, (13392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:54:33,493 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 4109 predicate places. [2023-11-29 20:54:33,494 INFO L500 AbstractCegarLoop]: Abstraction has has 4310 places, 4192 transitions, 549860 flow [2023-11-29 20:54:33,494 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:54:33,494 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:54:33,494 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:54:33,494 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-11-29 20:54:33,494 INFO L425 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:54:33,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:54:33,495 INFO L85 PathProgramCache]: Analyzing trace with hash -196025541, now seen corresponding path program 67 times [2023-11-29 20:54:33,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:54:33,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316295809] [2023-11-29 20:54:33,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:54:33,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:54:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:54:34,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:54:34,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:54:34,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316295809] [2023-11-29 20:54:34,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316295809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:54:34,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:54:34,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:54:34,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003948715] [2023-11-29 20:54:34,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:54:34,570 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:54:34,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:54:34,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:54:34,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:54:34,572 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:54:34,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 4310 places, 4192 transitions, 549860 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:54:34,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:54:34,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:54:34,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:54:55,422 INFO L124 PetriNetUnfolderBase]: 1737/7312 cut-off events. [2023-11-29 20:54:55,423 INFO L125 PetriNetUnfolderBase]: For 1405893/1437248 co-relation queries the response was YES. [2023-11-29 20:54:55,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371184 conditions, 7312 events. 1737/7312 cut-off events. For 1405893/1437248 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 66922 event pairs, 5 based on Foata normal form. 84/7092 useless extension candidates. Maximal degree in co-relation 274763. Up to 3805 conditions per place. [2023-11-29 20:54:55,587 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1422 selfloop transitions, 242 changer transitions 2428/4189 dead transitions. [2023-11-29 20:54:55,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 4374 places, 4189 transitions, 557642 flow [2023-11-29 20:54:55,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-11-29 20:54:55,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2023-11-29 20:54:55,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 7470 transitions. [2023-11-29 20:54:55,590 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.532051282051282 [2023-11-29 20:54:55,590 INFO L72 ComplementDD]: Start complementDD. Operand 65 states and 7470 transitions. [2023-11-29 20:54:55,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 7470 transitions. [2023-11-29 20:54:55,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:54:55,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 65 states and 7470 transitions. [2023-11-29 20:54:55,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 66 states, 65 states have (on average 114.92307692307692) internal successors, (7470), 65 states have internal predecessors, (7470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:54:55,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 66 states, 66 states have (on average 216.0) internal successors, (14256), 66 states have internal predecessors, (14256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:54:55,602 INFO L81 ComplementDD]: Finished complementDD. Result has 66 states, 66 states have (on average 216.0) internal successors, (14256), 66 states have internal predecessors, (14256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:54:55,602 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 4173 predicate places. [2023-11-29 20:54:55,603 INFO L500 AbstractCegarLoop]: Abstraction has has 4374 places, 4189 transitions, 557642 flow [2023-11-29 20:54:55,603 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:54:55,603 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:54:55,603 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:54:55,603 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-11-29 20:54:55,603 INFO L425 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:54:55,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:54:55,604 INFO L85 PathProgramCache]: Analyzing trace with hash -523567221, now seen corresponding path program 68 times [2023-11-29 20:54:55,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:54:55,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916936848] [2023-11-29 20:54:55,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:54:55,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:54:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:54:56,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:54:56,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:54:56,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916936848] [2023-11-29 20:54:56,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916936848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:54:56,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:54:56,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:54:56,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529121983] [2023-11-29 20:54:56,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:54:56,703 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:54:56,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:54:56,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:54:56,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:54:56,705 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:54:56,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 4374 places, 4189 transitions, 557642 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:54:56,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:54:56,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:54:56,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:55:16,903 INFO L124 PetriNetUnfolderBase]: 1737/7310 cut-off events. [2023-11-29 20:55:16,903 INFO L125 PetriNetUnfolderBase]: For 1460668/1495731 co-relation queries the response was YES. [2023-11-29 20:55:16,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376403 conditions, 7310 events. 1737/7310 cut-off events. For 1460668/1495731 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 66779 event pairs, 13 based on Foata normal form. 69/7076 useless extension candidates. Maximal degree in co-relation 278776. Up to 3802 conditions per place. [2023-11-29 20:55:17,070 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1377 selfloop transitions, 224 changer transitions 2488/4186 dead transitions. [2023-11-29 20:55:17,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 4440 places, 4186 transitions, 565412 flow [2023-11-29 20:55:17,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-11-29 20:55:17,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2023-11-29 20:55:17,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 7700 transitions. [2023-11-29 20:55:17,074 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5320619126589275 [2023-11-29 20:55:17,074 INFO L72 ComplementDD]: Start complementDD. Operand 67 states and 7700 transitions. [2023-11-29 20:55:17,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 7700 transitions. [2023-11-29 20:55:17,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:55:17,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 67 states and 7700 transitions. [2023-11-29 20:55:17,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 68 states, 67 states have (on average 114.92537313432835) internal successors, (7700), 67 states have internal predecessors, (7700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:55:17,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 68 states, 68 states have (on average 216.0) internal successors, (14688), 68 states have internal predecessors, (14688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:55:17,086 INFO L81 ComplementDD]: Finished complementDD. Result has 68 states, 68 states have (on average 216.0) internal successors, (14688), 68 states have internal predecessors, (14688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:55:17,086 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 4239 predicate places. [2023-11-29 20:55:17,086 INFO L500 AbstractCegarLoop]: Abstraction has has 4440 places, 4186 transitions, 565412 flow [2023-11-29 20:55:17,087 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:55:17,087 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:55:17,087 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:55:17,087 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-11-29 20:55:17,087 INFO L425 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:55:17,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:55:17,087 INFO L85 PathProgramCache]: Analyzing trace with hash 820443705, now seen corresponding path program 69 times [2023-11-29 20:55:17,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:55:17,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345021711] [2023-11-29 20:55:17,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:55:17,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:55:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:55:18,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:55:18,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:55:18,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345021711] [2023-11-29 20:55:18,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345021711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:55:18,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:55:18,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2023-11-29 20:55:18,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819816997] [2023-11-29 20:55:18,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:55:18,215 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 20:55:18,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:55:18,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 20:55:18,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 20:55:18,217 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 216 [2023-11-29 20:55:18,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 4440 places, 4186 transitions, 565412 flow. Second operand has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:55:18,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:55:18,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 216 [2023-11-29 20:55:18,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:55:39,020 INFO L124 PetriNetUnfolderBase]: 1743/7336 cut-off events. [2023-11-29 20:55:39,020 INFO L125 PetriNetUnfolderBase]: For 1454295/1481593 co-relation queries the response was YES. [2023-11-29 20:55:39,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 384689 conditions, 7336 events. 1743/7336 cut-off events. For 1454295/1481593 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 67324 event pairs, 8 based on Foata normal form. 87/7122 useless extension candidates. Maximal degree in co-relation 284319. Up to 3840 conditions per place. [2023-11-29 20:55:39,185 INFO L140 encePairwiseOnDemand]: 164/216 looper letters, 1370 selfloop transitions, 230 changer transitions 2522/4219 dead transitions. [2023-11-29 20:55:39,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 4497 places, 4219 transitions, 578234 flow [2023-11-29 20:55:39,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-11-29 20:55:39,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2023-11-29 20:55:39,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 6689 transitions. [2023-11-29 20:55:39,188 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5339240102171137 [2023-11-29 20:55:39,189 INFO L72 ComplementDD]: Start complementDD. Operand 58 states and 6689 transitions. [2023-11-29 20:55:39,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 6689 transitions. [2023-11-29 20:55:39,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:55:39,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 58 states and 6689 transitions. [2023-11-29 20:55:39,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 59 states, 58 states have (on average 115.32758620689656) internal successors, (6689), 58 states have internal predecessors, (6689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:55:39,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 59 states, 59 states have (on average 216.0) internal successors, (12744), 59 states have internal predecessors, (12744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:55:39,198 INFO L81 ComplementDD]: Finished complementDD. Result has 59 states, 59 states have (on average 216.0) internal successors, (12744), 59 states have internal predecessors, (12744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:55:39,199 INFO L307 CegarLoopForPetriNet]: 201 programPoint places, 4296 predicate places. [2023-11-29 20:55:39,199 INFO L500 AbstractCegarLoop]: Abstraction has has 4497 places, 4219 transitions, 578234 flow [2023-11-29 20:55:39,199 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 109.61111111111111) internal successors, (3946), 36 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 20:55:39,199 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:55:39,199 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:55:39,199 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-11-29 20:55:39,199 INFO L425 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:55:39,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:55:39,200 INFO L85 PathProgramCache]: Analyzing trace with hash -964781953, now seen corresponding path program 70 times [2023-11-29 20:55:39,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:55:39,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403124589] [2023-11-29 20:55:39,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:55:39,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:55:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-11-29 20:55:40,026 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-29 20:55:40,026 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-11-29 20:55:40,026 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 184 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 23 known predicates. [2023-11-29 20:55:40,027 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-29 20:55:40,027 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-29 20:55:40,028 INFO L457 BasicCegarLoop]: Path program histogram: [70] [2023-11-29 20:55:40,030 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 20:55:40,030 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 20:55:40,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:55:40 BasicIcfg [2023-11-29 20:55:40,032 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 20:55:40,033 INFO L158 Benchmark]: Toolchain (without parser) took 805168.13ms. Allocated memory was 570.4MB in the beginning and 5.8GB in the end (delta: 5.2GB). Free memory was 531.0MB in the beginning and 1.7GB in the end (delta: -1.2GB). Peak memory consumption was 4.0GB. Max. memory is 16.0GB. [2023-11-29 20:55:40,033 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 379.6MB. Free memory was 332.9MB in the beginning and 332.8MB in the end (delta: 170.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 20:55:40,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 156.74ms. Allocated memory is still 570.4MB. Free memory was 530.6MB in the beginning and 519.4MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-11-29 20:55:40,033 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.93ms. Allocated memory is still 570.4MB. Free memory was 519.4MB in the beginning and 517.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 20:55:40,033 INFO L158 Benchmark]: Boogie Preprocessor took 19.44ms. Allocated memory is still 570.4MB. Free memory was 517.1MB in the beginning and 515.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 20:55:40,033 INFO L158 Benchmark]: RCFGBuilder took 352.49ms. Allocated memory is still 570.4MB. Free memory was 515.6MB in the beginning and 497.1MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-11-29 20:55:40,033 INFO L158 Benchmark]: TraceAbstraction took 804609.96ms. Allocated memory was 570.4MB in the beginning and 5.8GB in the end (delta: 5.2GB). Free memory was 496.1MB in the beginning and 1.7GB in the end (delta: -1.2GB). Peak memory consumption was 4.0GB. Max. memory is 16.0GB. [2023-11-29 20:55:40,034 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 379.6MB. Free memory was 332.9MB in the beginning and 332.8MB in the end (delta: 170.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 156.74ms. Allocated memory is still 570.4MB. Free memory was 530.6MB in the beginning and 519.4MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 25.93ms. Allocated memory is still 570.4MB. Free memory was 519.4MB in the beginning and 517.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 19.44ms. Allocated memory is still 570.4MB. Free memory was 517.1MB in the beginning and 515.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 352.49ms. Allocated memory is still 570.4MB. Free memory was 515.6MB in the beginning and 497.1MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 804609.96ms. Allocated memory was 570.4MB in the beginning and 5.8GB in the end (delta: 5.2GB). Free memory was 496.1MB in the beginning and 1.7GB in the end (delta: -1.2GB). Peak memory consumption was 4.0GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 184 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 23 known predicates. - TimeoutResultAtElement [Line: 69]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 184 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 23 known predicates. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 184 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 23 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 322 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: 804.5s, OverallIterations: 70, TraceHistogramMax: 1, PathProgramHistogramMax: 70, EmptinessCheckTime: 0.0s, AutomataDifference: 718.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36249 SdHoareTripleChecker+Valid, 128.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36249 mSDsluCounter, 427163 SdHoareTripleChecker+Invalid, 107.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 408691 mSDsCounter, 284 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 361766 IncrementalHoareTripleChecker+Invalid, 362050 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 284 mSolverCounterUnsat, 18472 mSDtfsCounter, 361766 mSolverCounterSat, 1.9s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6453 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 6228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115903 ImplicationChecksByTransitivity, 148.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=578234occurred in iteration=69, InterpolantAutomatonStates: 4365, 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, 0.9s SatisfiabilityAnalysisTime, 83.4s InterpolantComputationTime, 12627 NumberOfCodeBlocks, 12627 NumberOfCodeBlocksAsserted, 69 NumberOfCheckSat, 12558 ConstructedInterpolants, 0 QuantifiedInterpolants, 125142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 69 InterpolantComputations, 69 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 [2023-11-29 20:55:40,038 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown