/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:17:24,570 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:17:24,619 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-12-09 15:17:24,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:17:24,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:17:24,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:17:24,651 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:17:24,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:17:24,651 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:17:24,655 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:17:24,655 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:17:24,655 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:17:24,656 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:17:24,656 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:17:24,657 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:17:24,657 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:17:24,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:17:24,657 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:17:24,657 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:17:24,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:17:24,657 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:17:24,658 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:17:24,658 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:17:24,658 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:17:24,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:17:24,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:17:24,659 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:17:24,659 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:17:24,659 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:17:24,659 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:17:24,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:17:24,660 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:17:24,660 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:17:24,661 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:17:24,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:17:24,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:17:24,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:17:24,827 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:17:24,828 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:17:24,828 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2023-12-09 15:17:25,984 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:17:26,147 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:17:26,147 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2023-12-09 15:17:26,156 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e361867c/bd605df9e8904a4181d63d98c69ccfe0/FLAG697652ebb [2023-12-09 15:17:26,166 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e361867c/bd605df9e8904a4181d63d98c69ccfe0 [2023-12-09 15:17:26,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:17:26,170 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:17:26,170 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:17:26,170 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:17:26,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:17:26,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:17:26" (1/1) ... [2023-12-09 15:17:26,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f4c3ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:26, skipping insertion in model container [2023-12-09 15:17:26,176 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:17:26" (1/1) ... [2023-12-09 15:17:26,219 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:17:26,322 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/parallel-bluetooth.wvr.c[3160,3173] [2023-12-09 15:17:26,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:17:26,333 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:17:26,350 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/parallel-bluetooth.wvr.c[3160,3173] [2023-12-09 15:17:26,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:17:26,356 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:17:26,356 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:17:26,362 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:17:26,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:26 WrapperNode [2023-12-09 15:17:26,363 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:17:26,363 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:17:26,364 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:17:26,364 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:17:26,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:26" (1/1) ... [2023-12-09 15:17:26,378 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:26" (1/1) ... [2023-12-09 15:17:26,395 INFO L138 Inliner]: procedures = 21, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 125 [2023-12-09 15:17:26,395 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:17:26,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:17:26,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:17:26,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:17:26,403 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:26" (1/1) ... [2023-12-09 15:17:26,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:26" (1/1) ... [2023-12-09 15:17:26,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:26" (1/1) ... [2023-12-09 15:17:26,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:26" (1/1) ... [2023-12-09 15:17:26,414 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:26" (1/1) ... [2023-12-09 15:17:26,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:26" (1/1) ... [2023-12-09 15:17:26,417 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:26" (1/1) ... [2023-12-09 15:17:26,417 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:26" (1/1) ... [2023-12-09 15:17:26,419 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:17:26,420 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:17:26,420 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:17:26,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:17:26,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:26" (1/1) ... [2023-12-09 15:17:26,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:17:26,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:17:26,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-09 15:17:26,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-09 15:17:26,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:17:26,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:17:26,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:17:26,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:17:26,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:17:26,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:17:26,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:17:26,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:17:26,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 15:17:26,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 15:17:26,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:17:26,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:17:26,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:17:26,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:17:26,467 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:17:26,537 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:17:26,538 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:17:26,710 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:17:26,749 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:17:26,749 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 15:17:26,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:17:26 BoogieIcfgContainer [2023-12-09 15:17:26,751 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:17:26,753 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:17:26,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:17:26,755 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:17:26,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:17:26" (1/3) ... [2023-12-09 15:17:26,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245e30d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:17:26, skipping insertion in model container [2023-12-09 15:17:26,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:17:26" (2/3) ... [2023-12-09 15:17:26,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245e30d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:17:26, skipping insertion in model container [2023-12-09 15:17:26,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:17:26" (3/3) ... [2023-12-09 15:17:26,757 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2023-12-09 15:17:26,770 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:17:26,771 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:17:26,771 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:17:26,855 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-09 15:17:26,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 143 transitions, 300 flow [2023-12-09 15:17:26,982 INFO L124 PetriNetUnfolderBase]: 9/141 cut-off events. [2023-12-09 15:17:26,982 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:17:26,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 141 events. 9/141 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 104. Up to 2 conditions per place. [2023-12-09 15:17:26,992 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 143 transitions, 300 flow [2023-12-09 15:17:27,002 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 132 transitions, 276 flow [2023-12-09 15:17:27,014 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:17:27,021 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;@34c4c7da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:17:27,021 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-09 15:17:27,061 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:17:27,061 INFO L124 PetriNetUnfolderBase]: 9/131 cut-off events. [2023-12-09 15:17:27,062 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:17:27,062 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:17:27,062 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:17:27,063 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:17:27,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:17:27,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1036253625, now seen corresponding path program 1 times [2023-12-09 15:17:27,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:17:27,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225573316] [2023-12-09 15:17:27,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:17:27,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:17:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:17:27,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:17:27,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:17:27,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225573316] [2023-12-09 15:17:27,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225573316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:17:27,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:17:27,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:17:27,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255835079] [2023-12-09 15:17:27,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:17:27,627 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:17:27,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:17:27,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:17:27,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:17:27,669 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 143 [2023-12-09 15:17:27,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 132 transitions, 276 flow. Second operand has 5 states, 5 states have (on average 83.6) internal successors, (418), 5 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:27,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:17:27,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 143 [2023-12-09 15:17:27,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:17:27,827 INFO L124 PetriNetUnfolderBase]: 26/220 cut-off events. [2023-12-09 15:17:27,827 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-12-09 15:17:27,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 220 events. 26/220 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 518 event pairs, 9 based on Foata normal form. 11/212 useless extension candidates. Maximal degree in co-relation 169. Up to 62 conditions per place. [2023-12-09 15:17:27,832 INFO L140 encePairwiseOnDemand]: 124/143 looper letters, 56 selfloop transitions, 7 changer transitions 7/133 dead transitions. [2023-12-09 15:17:27,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 133 transitions, 424 flow [2023-12-09 15:17:27,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 15:17:27,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 15:17:27,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 516 transitions. [2023-12-09 15:17:27,847 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6013986013986014 [2023-12-09 15:17:27,847 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 516 transitions. [2023-12-09 15:17:27,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 516 transitions. [2023-12-09 15:17:27,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:17:27,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 516 transitions. [2023-12-09 15:17:27,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.0) internal successors, (516), 6 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:27,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:27,865 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:27,868 INFO L308 CegarLoopForPetriNet]: 130 programPoint places, 5 predicate places. [2023-12-09 15:17:27,868 INFO L500 AbstractCegarLoop]: Abstraction has has 135 places, 133 transitions, 424 flow [2023-12-09 15:17:27,869 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.6) internal successors, (418), 5 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:27,869 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:17:27,869 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:17:27,870 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:17:27,871 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:17:27,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:17:27,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1481998516, now seen corresponding path program 1 times [2023-12-09 15:17:27,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:17:27,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322542931] [2023-12-09 15:17:27,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:17:27,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:17:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:17:28,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:17:28,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:17:28,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322542931] [2023-12-09 15:17:28,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322542931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:17:28,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:17:28,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:17:28,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260478257] [2023-12-09 15:17:28,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:17:28,245 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:17:28,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:17:28,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:17:28,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:17:28,247 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 143 [2023-12-09 15:17:28,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 133 transitions, 424 flow. Second operand has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:28,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:17:28,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 143 [2023-12-09 15:17:28,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:17:28,391 INFO L124 PetriNetUnfolderBase]: 87/443 cut-off events. [2023-12-09 15:17:28,391 INFO L125 PetriNetUnfolderBase]: For 249/278 co-relation queries the response was YES. [2023-12-09 15:17:28,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 885 conditions, 443 events. 87/443 cut-off events. For 249/278 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2037 event pairs, 18 based on Foata normal form. 6/402 useless extension candidates. Maximal degree in co-relation 437. Up to 126 conditions per place. [2023-12-09 15:17:28,395 INFO L140 encePairwiseOnDemand]: 135/143 looper letters, 39 selfloop transitions, 11 changer transitions 7/159 dead transitions. [2023-12-09 15:17:28,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 159 transitions, 637 flow [2023-12-09 15:17:28,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 15:17:28,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 15:17:28,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 745 transitions. [2023-12-09 15:17:28,399 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8682983682983683 [2023-12-09 15:17:28,399 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 745 transitions. [2023-12-09 15:17:28,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 745 transitions. [2023-12-09 15:17:28,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:17:28,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 745 transitions. [2023-12-09 15:17:28,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:28,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:28,403 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:28,404 INFO L308 CegarLoopForPetriNet]: 130 programPoint places, 10 predicate places. [2023-12-09 15:17:28,404 INFO L500 AbstractCegarLoop]: Abstraction has has 140 places, 159 transitions, 637 flow [2023-12-09 15:17:28,405 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:28,405 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:17:28,405 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:17:28,405 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:17:28,406 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:17:28,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:17:28,406 INFO L85 PathProgramCache]: Analyzing trace with hash 640986564, now seen corresponding path program 2 times [2023-12-09 15:17:28,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:17:28,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604703030] [2023-12-09 15:17:28,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:17:28,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:17:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:17:28,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:17:28,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:17:28,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604703030] [2023-12-09 15:17:28,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604703030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:17:28,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:17:28,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:17:28,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370396915] [2023-12-09 15:17:28,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:17:28,869 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:17:28,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:17:28,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:17:28,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:17:28,873 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 143 [2023-12-09 15:17:28,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 159 transitions, 637 flow. Second operand has 11 states, 11 states have (on average 73.36363636363636) internal successors, (807), 11 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:28,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:17:28,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 143 [2023-12-09 15:17:28,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:17:29,078 INFO L124 PetriNetUnfolderBase]: 94/473 cut-off events. [2023-12-09 15:17:29,078 INFO L125 PetriNetUnfolderBase]: For 456/503 co-relation queries the response was YES. [2023-12-09 15:17:29,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 473 events. 94/473 cut-off events. For 456/503 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2195 event pairs, 10 based on Foata normal form. 6/439 useless extension candidates. Maximal degree in co-relation 686. Up to 176 conditions per place. [2023-12-09 15:17:29,081 INFO L140 encePairwiseOnDemand]: 128/143 looper letters, 85 selfloop transitions, 17 changer transitions 7/174 dead transitions. [2023-12-09 15:17:29,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 174 transitions, 932 flow [2023-12-09 15:17:29,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-09 15:17:29,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-12-09 15:17:29,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 902 transitions. [2023-12-09 15:17:29,083 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5256410256410257 [2023-12-09 15:17:29,083 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 902 transitions. [2023-12-09 15:17:29,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 902 transitions. [2023-12-09 15:17:29,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:17:29,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 902 transitions. [2023-12-09 15:17:29,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 75.16666666666667) internal successors, (902), 12 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:29,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:29,089 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:29,090 INFO L308 CegarLoopForPetriNet]: 130 programPoint places, 21 predicate places. [2023-12-09 15:17:29,090 INFO L500 AbstractCegarLoop]: Abstraction has has 151 places, 174 transitions, 932 flow [2023-12-09 15:17:29,091 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 73.36363636363636) internal successors, (807), 11 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:29,091 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:17:29,091 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:17:29,091 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:17:29,091 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:17:29,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:17:29,092 INFO L85 PathProgramCache]: Analyzing trace with hash -338635722, now seen corresponding path program 1 times [2023-12-09 15:17:29,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:17:29,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573065595] [2023-12-09 15:17:29,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:17:29,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:17:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:17:29,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:17:29,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:17:29,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573065595] [2023-12-09 15:17:29,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573065595] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:17:29,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:17:29,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:17:29,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813075443] [2023-12-09 15:17:29,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:17:29,364 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:17:29,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:17:29,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:17:29,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:17:29,366 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 143 [2023-12-09 15:17:29,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 174 transitions, 932 flow. Second operand has 10 states, 10 states have (on average 76.6) internal successors, (766), 10 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:29,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:17:29,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 143 [2023-12-09 15:17:29,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:17:29,534 INFO L124 PetriNetUnfolderBase]: 80/452 cut-off events. [2023-12-09 15:17:29,534 INFO L125 PetriNetUnfolderBase]: For 728/791 co-relation queries the response was YES. [2023-12-09 15:17:29,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1360 conditions, 452 events. 80/452 cut-off events. For 728/791 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2114 event pairs, 7 based on Foata normal form. 12/430 useless extension candidates. Maximal degree in co-relation 642. Up to 173 conditions per place. [2023-12-09 15:17:29,536 INFO L140 encePairwiseOnDemand]: 130/143 looper letters, 87 selfloop transitions, 35 changer transitions 19/208 dead transitions. [2023-12-09 15:17:29,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 208 transitions, 1470 flow [2023-12-09 15:17:29,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-09 15:17:29,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-12-09 15:17:29,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1092 transitions. [2023-12-09 15:17:29,539 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2023-12-09 15:17:29,539 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1092 transitions. [2023-12-09 15:17:29,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1092 transitions. [2023-12-09 15:17:29,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:17:29,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1092 transitions. [2023-12-09 15:17:29,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 78.0) internal successors, (1092), 14 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:29,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 143.0) internal successors, (2145), 15 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:29,544 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 143.0) internal successors, (2145), 15 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:29,545 INFO L308 CegarLoopForPetriNet]: 130 programPoint places, 34 predicate places. [2023-12-09 15:17:29,545 INFO L500 AbstractCegarLoop]: Abstraction has has 164 places, 208 transitions, 1470 flow [2023-12-09 15:17:29,545 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 76.6) internal successors, (766), 10 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:29,546 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:17:29,546 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:17:29,546 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:17:29,546 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:17:29,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:17:29,546 INFO L85 PathProgramCache]: Analyzing trace with hash -326283624, now seen corresponding path program 3 times [2023-12-09 15:17:29,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:17:29,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706062915] [2023-12-09 15:17:29,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:17:29,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:17:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:17:29,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:17:29,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:17:29,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706062915] [2023-12-09 15:17:29,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706062915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:17:29,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:17:29,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-09 15:17:29,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134236601] [2023-12-09 15:17:29,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:17:29,947 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-09 15:17:29,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:17:29,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-09 15:17:29,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-09 15:17:29,949 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 143 [2023-12-09 15:17:29,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 208 transitions, 1470 flow. Second operand has 12 states, 12 states have (on average 73.83333333333333) internal successors, (886), 12 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:29,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:17:29,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 143 [2023-12-09 15:17:29,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:17:30,231 INFO L124 PetriNetUnfolderBase]: 89/510 cut-off events. [2023-12-09 15:17:30,231 INFO L125 PetriNetUnfolderBase]: For 1239/1354 co-relation queries the response was YES. [2023-12-09 15:17:30,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1787 conditions, 510 events. 89/510 cut-off events. For 1239/1354 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2664 event pairs, 7 based on Foata normal form. 21/493 useless extension candidates. Maximal degree in co-relation 1235. Up to 199 conditions per place. [2023-12-09 15:17:30,234 INFO L140 encePairwiseOnDemand]: 124/143 looper letters, 91 selfloop transitions, 16 changer transitions 48/228 dead transitions. [2023-12-09 15:17:30,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 228 transitions, 1965 flow [2023-12-09 15:17:30,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:17:30,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:17:30,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1201 transitions. [2023-12-09 15:17:30,237 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5249125874125874 [2023-12-09 15:17:30,237 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1201 transitions. [2023-12-09 15:17:30,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1201 transitions. [2023-12-09 15:17:30,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:17:30,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1201 transitions. [2023-12-09 15:17:30,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 75.0625) internal successors, (1201), 16 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:30,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 143.0) internal successors, (2431), 17 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:30,243 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 143.0) internal successors, (2431), 17 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:30,243 INFO L308 CegarLoopForPetriNet]: 130 programPoint places, 49 predicate places. [2023-12-09 15:17:30,244 INFO L500 AbstractCegarLoop]: Abstraction has has 179 places, 228 transitions, 1965 flow [2023-12-09 15:17:30,244 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 73.83333333333333) internal successors, (886), 12 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:30,244 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:17:30,244 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:17:30,245 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:17:30,245 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:17:30,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:17:30,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1305848034, now seen corresponding path program 4 times [2023-12-09 15:17:30,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:17:30,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832453476] [2023-12-09 15:17:30,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:17:30,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:17:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:17:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:17:30,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:17:30,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832453476] [2023-12-09 15:17:30,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832453476] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:17:30,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:17:30,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:17:30,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210859873] [2023-12-09 15:17:30,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:17:30,377 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:17:30,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:17:30,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:17:30,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:17:30,378 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 143 [2023-12-09 15:17:30,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 228 transitions, 1965 flow. Second operand has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:30,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:17:30,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 143 [2023-12-09 15:17:30,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:17:30,495 INFO L124 PetriNetUnfolderBase]: 93/546 cut-off events. [2023-12-09 15:17:30,495 INFO L125 PetriNetUnfolderBase]: For 1774/1935 co-relation queries the response was YES. [2023-12-09 15:17:30,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2175 conditions, 546 events. 93/546 cut-off events. For 1774/1935 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2989 event pairs, 2 based on Foata normal form. 12/519 useless extension candidates. Maximal degree in co-relation 1199. Up to 221 conditions per place. [2023-12-09 15:17:30,498 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 74 selfloop transitions, 12 changer transitions 64/260 dead transitions. [2023-12-09 15:17:30,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 260 transitions, 2579 flow [2023-12-09 15:17:30,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:17:30,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:17:30,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 623 transitions. [2023-12-09 15:17:30,501 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8713286713286713 [2023-12-09 15:17:30,501 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 623 transitions. [2023-12-09 15:17:30,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 623 transitions. [2023-12-09 15:17:30,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:17:30,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 623 transitions. [2023-12-09 15:17:30,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 124.6) internal successors, (623), 5 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:30,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:30,504 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:30,505 INFO L308 CegarLoopForPetriNet]: 130 programPoint places, 53 predicate places. [2023-12-09 15:17:30,505 INFO L500 AbstractCegarLoop]: Abstraction has has 183 places, 260 transitions, 2579 flow [2023-12-09 15:17:30,505 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:30,505 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:17:30,505 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:17:30,505 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:17:30,506 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:17:30,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:17:30,506 INFO L85 PathProgramCache]: Analyzing trace with hash -978659852, now seen corresponding path program 5 times [2023-12-09 15:17:30,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:17:30,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869299227] [2023-12-09 15:17:30,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:17:30,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:17:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:17:30,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:17:30,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:17:30,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869299227] [2023-12-09 15:17:30,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869299227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:17:30,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:17:30,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:17:30,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209788844] [2023-12-09 15:17:30,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:17:30,649 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:17:30,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:17:30,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:17:30,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:17:30,650 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 143 [2023-12-09 15:17:30,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 260 transitions, 2579 flow. Second operand has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:30,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:17:30,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 143 [2023-12-09 15:17:30,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:17:30,796 INFO L124 PetriNetUnfolderBase]: 103/670 cut-off events. [2023-12-09 15:17:30,796 INFO L125 PetriNetUnfolderBase]: For 2915/3286 co-relation queries the response was YES. [2023-12-09 15:17:30,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2871 conditions, 670 events. 103/670 cut-off events. For 2915/3286 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4200 event pairs, 11 based on Foata normal form. 22/643 useless extension candidates. Maximal degree in co-relation 1752. Up to 272 conditions per place. [2023-12-09 15:17:30,799 INFO L140 encePairwiseOnDemand]: 136/143 looper letters, 91 selfloop transitions, 12 changer transitions 70/283 dead transitions. [2023-12-09 15:17:30,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 283 transitions, 3219 flow [2023-12-09 15:17:30,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 15:17:30,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 15:17:30,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 745 transitions. [2023-12-09 15:17:30,802 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8682983682983683 [2023-12-09 15:17:30,802 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 745 transitions. [2023-12-09 15:17:30,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 745 transitions. [2023-12-09 15:17:30,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:17:30,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 745 transitions. [2023-12-09 15:17:30,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:30,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:30,806 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:30,807 INFO L308 CegarLoopForPetriNet]: 130 programPoint places, 58 predicate places. [2023-12-09 15:17:30,807 INFO L500 AbstractCegarLoop]: Abstraction has has 188 places, 283 transitions, 3219 flow [2023-12-09 15:17:30,808 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:30,808 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:17:30,808 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:17:30,808 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:17:30,808 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:17:30,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:17:30,808 INFO L85 PathProgramCache]: Analyzing trace with hash -668716886, now seen corresponding path program 6 times [2023-12-09 15:17:30,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:17:30,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090327183] [2023-12-09 15:17:30,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:17:30,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:17:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:17:30,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:17:30,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:17:30,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090327183] [2023-12-09 15:17:30,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090327183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:17:30,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:17:30,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:17:30,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118957315] [2023-12-09 15:17:30,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:17:30,995 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:17:30,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:17:30,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:17:30,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:17:30,996 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 143 [2023-12-09 15:17:30,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 283 transitions, 3219 flow. Second operand has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:30,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:17:30,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 143 [2023-12-09 15:17:30,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:17:31,143 INFO L124 PetriNetUnfolderBase]: 102/636 cut-off events. [2023-12-09 15:17:31,143 INFO L125 PetriNetUnfolderBase]: For 3497/3895 co-relation queries the response was YES. [2023-12-09 15:17:31,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3036 conditions, 636 events. 102/636 cut-off events. For 3497/3895 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3872 event pairs, 5 based on Foata normal form. 20/610 useless extension candidates. Maximal degree in co-relation 1826. Up to 260 conditions per place. [2023-12-09 15:17:31,147 INFO L140 encePairwiseOnDemand]: 136/143 looper letters, 86 selfloop transitions, 11 changer transitions 72/279 dead transitions. [2023-12-09 15:17:31,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 279 transitions, 3465 flow [2023-12-09 15:17:31,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 15:17:31,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 15:17:31,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 741 transitions. [2023-12-09 15:17:31,149 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8636363636363636 [2023-12-09 15:17:31,149 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 741 transitions. [2023-12-09 15:17:31,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 741 transitions. [2023-12-09 15:17:31,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:17:31,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 741 transitions. [2023-12-09 15:17:31,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:31,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:31,152 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:31,155 INFO L308 CegarLoopForPetriNet]: 130 programPoint places, 63 predicate places. [2023-12-09 15:17:31,155 INFO L500 AbstractCegarLoop]: Abstraction has has 193 places, 279 transitions, 3465 flow [2023-12-09 15:17:31,155 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:31,155 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:17:31,156 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:17:31,156 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 15:17:31,156 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:17:31,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:17:31,157 INFO L85 PathProgramCache]: Analyzing trace with hash 507060760, now seen corresponding path program 7 times [2023-12-09 15:17:31,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:17:31,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192565430] [2023-12-09 15:17:31,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:17:31,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:17:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:17:31,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:17:31,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:17:31,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192565430] [2023-12-09 15:17:31,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192565430] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:17:31,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:17:31,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:17:31,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062832322] [2023-12-09 15:17:31,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:17:31,325 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:17:31,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:17:31,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:17:31,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:17:31,326 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 143 [2023-12-09 15:17:31,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 279 transitions, 3465 flow. Second operand has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:31,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:17:31,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 143 [2023-12-09 15:17:31,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:17:31,507 INFO L124 PetriNetUnfolderBase]: 104/670 cut-off events. [2023-12-09 15:17:31,508 INFO L125 PetriNetUnfolderBase]: For 4862/5539 co-relation queries the response was YES. [2023-12-09 15:17:31,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3476 conditions, 670 events. 104/670 cut-off events. For 4862/5539 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4273 event pairs, 8 based on Foata normal form. 37/663 useless extension candidates. Maximal degree in co-relation 1698. Up to 272 conditions per place. [2023-12-09 15:17:31,511 INFO L140 encePairwiseOnDemand]: 136/143 looper letters, 87 selfloop transitions, 11 changer transitions 93/301 dead transitions. [2023-12-09 15:17:31,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 301 transitions, 4203 flow [2023-12-09 15:17:31,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:17:31,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:17:31,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 989 transitions. [2023-12-09 15:17:31,514 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8645104895104895 [2023-12-09 15:17:31,514 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 989 transitions. [2023-12-09 15:17:31,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 989 transitions. [2023-12-09 15:17:31,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:17:31,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 989 transitions. [2023-12-09 15:17:31,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 123.625) internal successors, (989), 8 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:31,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 143.0) internal successors, (1287), 9 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:31,519 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 143.0) internal successors, (1287), 9 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:31,519 INFO L308 CegarLoopForPetriNet]: 130 programPoint places, 70 predicate places. [2023-12-09 15:17:31,520 INFO L500 AbstractCegarLoop]: Abstraction has has 200 places, 301 transitions, 4203 flow [2023-12-09 15:17:31,520 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:31,520 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:17:31,520 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:17:31,520 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 15:17:31,520 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:17:31,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:17:31,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1497630872, now seen corresponding path program 8 times [2023-12-09 15:17:31,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:17:31,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306825903] [2023-12-09 15:17:31,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:17:31,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:17:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:17:31,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:17:31,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:17:31,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306825903] [2023-12-09 15:17:31,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306825903] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:17:31,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:17:31,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:17:31,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582237805] [2023-12-09 15:17:31,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:17:31,676 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:17:31,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:17:31,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:17:31,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:17:31,678 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 143 [2023-12-09 15:17:31,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 301 transitions, 4203 flow. Second operand has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:31,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:17:31,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 143 [2023-12-09 15:17:31,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:17:31,814 INFO L124 PetriNetUnfolderBase]: 102/641 cut-off events. [2023-12-09 15:17:31,814 INFO L125 PetriNetUnfolderBase]: For 5187/5635 co-relation queries the response was YES. [2023-12-09 15:17:31,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3638 conditions, 641 events. 102/641 cut-off events. For 5187/5635 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3999 event pairs, 5 based on Foata normal form. 27/626 useless extension candidates. Maximal degree in co-relation 2333. Up to 261 conditions per place. [2023-12-09 15:17:31,818 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 83 selfloop transitions, 7 changer transitions 97/297 dead transitions. [2023-12-09 15:17:31,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 297 transitions, 4471 flow [2023-12-09 15:17:31,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:17:31,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:17:31,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 620 transitions. [2023-12-09 15:17:31,819 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8671328671328671 [2023-12-09 15:17:31,820 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 620 transitions. [2023-12-09 15:17:31,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 620 transitions. [2023-12-09 15:17:31,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:17:31,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 620 transitions. [2023-12-09 15:17:31,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:31,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:31,825 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:31,825 INFO L308 CegarLoopForPetriNet]: 130 programPoint places, 74 predicate places. [2023-12-09 15:17:31,826 INFO L500 AbstractCegarLoop]: Abstraction has has 204 places, 297 transitions, 4471 flow [2023-12-09 15:17:31,826 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:31,826 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:17:31,826 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:17:31,826 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-09 15:17:31,826 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:17:31,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:17:31,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1238523324, now seen corresponding path program 9 times [2023-12-09 15:17:31,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:17:31,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849505418] [2023-12-09 15:17:31,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:17:31,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:17:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:17:32,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:17:32,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:17:32,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849505418] [2023-12-09 15:17:32,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849505418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:17:32,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:17:32,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:17:32,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23319510] [2023-12-09 15:17:32,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:17:32,031 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:17:32,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:17:32,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:17:32,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:17:32,033 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 143 [2023-12-09 15:17:32,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 297 transitions, 4471 flow. Second operand has 8 states, 8 states have (on average 79.0) internal successors, (632), 8 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:32,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:17:32,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 143 [2023-12-09 15:17:32,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:17:32,221 INFO L124 PetriNetUnfolderBase]: 110/625 cut-off events. [2023-12-09 15:17:32,221 INFO L125 PetriNetUnfolderBase]: For 7081/7523 co-relation queries the response was YES. [2023-12-09 15:17:32,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3883 conditions, 625 events. 110/625 cut-off events. For 7081/7523 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3962 event pairs, 5 based on Foata normal form. 9/598 useless extension candidates. Maximal degree in co-relation 3144. Up to 251 conditions per place. [2023-12-09 15:17:32,224 INFO L140 encePairwiseOnDemand]: 127/143 looper letters, 0 selfloop transitions, 0 changer transitions 299/299 dead transitions. [2023-12-09 15:17:32,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 299 transitions, 4978 flow [2023-12-09 15:17:32,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-09 15:17:32,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-12-09 15:17:32,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 930 transitions. [2023-12-09 15:17:32,227 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.541958041958042 [2023-12-09 15:17:32,227 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 930 transitions. [2023-12-09 15:17:32,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 930 transitions. [2023-12-09 15:17:32,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:17:32,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 930 transitions. [2023-12-09 15:17:32,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 77.5) internal successors, (930), 12 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:32,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:32,232 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:32,233 INFO L308 CegarLoopForPetriNet]: 130 programPoint places, 81 predicate places. [2023-12-09 15:17:32,233 INFO L500 AbstractCegarLoop]: Abstraction has has 211 places, 299 transitions, 4978 flow [2023-12-09 15:17:32,233 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 79.0) internal successors, (632), 8 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:17:32,240 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/parallel-bluetooth.wvr.c_BEv2_AllErrorsAtOnce [2023-12-09 15:17:32,295 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-09 15:17:32,299 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-12-09 15:17:32,299 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-12-09 15:17:32,300 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-09 15:17:32,300 INFO L457 BasicCegarLoop]: Path program histogram: [9, 1, 1] [2023-12-09 15:17:32,303 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:17:32,303 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:17:32,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:17:32 BasicIcfg [2023-12-09 15:17:32,310 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:17:32,310 INFO L158 Benchmark]: Toolchain (without parser) took 6141.05ms. Allocated memory was 232.8MB in the beginning and 348.1MB in the end (delta: 115.3MB). Free memory was 180.8MB in the beginning and 155.9MB in the end (delta: 24.9MB). Peak memory consumption was 140.7MB. Max. memory is 8.0GB. [2023-12-09 15:17:32,311 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 166.7MB. Free memory is still 118.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:17:32,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.55ms. Allocated memory is still 232.8MB. Free memory was 180.8MB in the beginning and 169.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-09 15:17:32,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.04ms. Allocated memory is still 232.8MB. Free memory was 169.3MB in the beginning and 167.6MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:17:32,311 INFO L158 Benchmark]: Boogie Preprocessor took 23.06ms. Allocated memory is still 232.8MB. Free memory was 167.6MB in the beginning and 166.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:17:32,311 INFO L158 Benchmark]: RCFGBuilder took 331.28ms. Allocated memory is still 232.8MB. Free memory was 166.1MB in the beginning and 147.9MB in the end (delta: 18.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-09 15:17:32,312 INFO L158 Benchmark]: TraceAbstraction took 5557.44ms. Allocated memory was 232.8MB in the beginning and 348.1MB in the end (delta: 115.3MB). Free memory was 147.3MB in the beginning and 155.9MB in the end (delta: -8.6MB). Peak memory consumption was 107.1MB. Max. memory is 8.0GB. [2023-12-09 15:17:32,313 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 166.7MB. Free memory is still 118.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 192.55ms. Allocated memory is still 232.8MB. Free memory was 180.8MB in the beginning and 169.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.04ms. Allocated memory is still 232.8MB. Free memory was 169.3MB in the beginning and 167.6MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.06ms. Allocated memory is still 232.8MB. Free memory was 167.6MB in the beginning and 166.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 331.28ms. Allocated memory is still 232.8MB. Free memory was 166.1MB in the beginning and 147.9MB in the end (delta: 18.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 5557.44ms. Allocated memory was 232.8MB in the beginning and 348.1MB in the end (delta: 115.3MB). Free memory was 147.3MB in the beginning and 155.9MB in the end (delta: -8.6MB). Peak memory consumption was 107.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 115]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 158 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: 5.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 312 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 312 mSDsluCounter, 956 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 644 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1288 IncrementalHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 312 mSDtfsCounter, 1288 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4978occurred in iteration=11, InterpolantAutomatonStates: 96, 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: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1264 NumberOfCodeBlocks, 1264 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1253 ConstructedInterpolants, 0 QuantifiedInterpolants, 3141 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-09 15:17:32,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...