/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/popl20-more-array-sum-alt2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:26:13,513 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:26:13,574 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 15:26:13,600 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:26:13,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:26:13,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:26:13,602 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:26:13,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:26:13,602 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:26:13,602 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:26:13,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:26:13,603 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:26:13,603 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:26:13,603 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:26:13,604 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:26:13,604 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:26:13,604 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:26:13,604 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:26:13,604 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:26:13,605 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:26:13,605 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:26:13,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:26:13,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:26:13,609 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:26:13,612 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:26:13,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:26:13,613 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:26:13,613 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:26:13,613 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:26:13,613 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:26:13,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:26:13,614 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:26:13,614 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:26:13,614 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:26:13,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:26:13,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:26:13,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:26:13,863 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:26:13,863 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:26:13,864 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-array-sum-alt2.wvr.c [2023-12-09 15:26:14,887 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:26:15,071 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:26:15,071 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum-alt2.wvr.c [2023-12-09 15:26:15,078 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dab7dbb7f/cbaeb9d790d048b98494508ededd7d60/FLAG0dc85f05a [2023-12-09 15:26:15,091 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dab7dbb7f/cbaeb9d790d048b98494508ededd7d60 [2023-12-09 15:26:15,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:26:15,094 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:26:15,096 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:26:15,096 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:26:15,099 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:26:15,100 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:26:15" (1/1) ... [2023-12-09 15:26:15,100 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cecd07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:26:15, skipping insertion in model container [2023-12-09 15:26:15,100 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:26:15" (1/1) ... [2023-12-09 15:26:15,122 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:26:15,267 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/popl20-more-array-sum-alt2.wvr.c[2564,2577] [2023-12-09 15:26:15,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:26:15,293 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:26:15,323 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/popl20-more-array-sum-alt2.wvr.c[2564,2577] [2023-12-09 15:26:15,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:26:15,337 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:26:15,337 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:26:15,347 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:26:15,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:26:15 WrapperNode [2023-12-09 15:26:15,348 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:26:15,349 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:26:15,349 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:26:15,349 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:26:15,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:26:15" (1/1) ... [2023-12-09 15:26:15,361 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:26:15" (1/1) ... [2023-12-09 15:26:15,384 INFO L138 Inliner]: procedures = 25, calls = 45, calls flagged for inlining = 12, calls inlined = 16, statements flattened = 200 [2023-12-09 15:26:15,384 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:26:15,385 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:26:15,385 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:26:15,385 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:26:15,393 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:26:15" (1/1) ... [2023-12-09 15:26:15,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:26:15" (1/1) ... [2023-12-09 15:26:15,400 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:26:15" (1/1) ... [2023-12-09 15:26:15,400 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:26:15" (1/1) ... [2023-12-09 15:26:15,405 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:26:15" (1/1) ... [2023-12-09 15:26:15,407 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:26:15" (1/1) ... [2023-12-09 15:26:15,409 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:26:15" (1/1) ... [2023-12-09 15:26:15,409 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:26:15" (1/1) ... [2023-12-09 15:26:15,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:26:15,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:26:15,412 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:26:15,412 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:26:15,413 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:26:15" (1/1) ... [2023-12-09 15:26:15,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:26:15,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:26:15,434 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 15:26:15,455 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 15:26:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:26:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:26:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:26:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:26:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:26:15,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:26:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:26:15,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:26:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:26:15,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:26:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:26:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 15:26:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 15:26:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-09 15:26:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:26:15,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:26:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:26:15,475 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 15:26:15,544 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:26:15,545 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:26:15,856 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:26:15,975 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:26:15,975 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-09 15:26:15,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:26:15 BoogieIcfgContainer [2023-12-09 15:26:15,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:26:15,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:26:15,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:26:15,981 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:26:15,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:26:15" (1/3) ... [2023-12-09 15:26:15,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffeb821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:26:15, skipping insertion in model container [2023-12-09 15:26:15,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:26:15" (2/3) ... [2023-12-09 15:26:15,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffeb821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:26:15, skipping insertion in model container [2023-12-09 15:26:15,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:26:15" (3/3) ... [2023-12-09 15:26:15,985 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum-alt2.wvr.c [2023-12-09 15:26:16,000 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:26:16,000 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:26:16,000 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:26:16,079 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-12-09 15:26:16,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 159 transitions, 339 flow [2023-12-09 15:26:16,201 INFO L124 PetriNetUnfolderBase]: 12/156 cut-off events. [2023-12-09 15:26:16,201 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:26:16,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 156 events. 12/156 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 105 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 116. Up to 2 conditions per place. [2023-12-09 15:26:16,206 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 159 transitions, 339 flow [2023-12-09 15:26:16,214 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 145 transitions, 308 flow [2023-12-09 15:26:16,223 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:26:16,228 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;@4bf5b279, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:26:16,229 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-09 15:26:16,257 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:26:16,257 INFO L124 PetriNetUnfolderBase]: 12/144 cut-off events. [2023-12-09 15:26:16,257 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:26:16,257 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:26:16,258 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] [2023-12-09 15:26:16,258 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:26:16,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:26:16,265 INFO L85 PathProgramCache]: Analyzing trace with hash 882123870, now seen corresponding path program 1 times [2023-12-09 15:26:16,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:26:16,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691914978] [2023-12-09 15:26:16,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:26:16,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:26:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:26:16,827 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 15:26:16,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:26:16,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691914978] [2023-12-09 15:26:16,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691914978] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:26:16,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:26:16,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:26:16,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873630381] [2023-12-09 15:26:16,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:26:16,836 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:26:16,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:26:16,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:26:16,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:26:16,856 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 159 [2023-12-09 15:26:16,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 145 transitions, 308 flow. Second operand has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:16,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:26:16,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 159 [2023-12-09 15:26:16,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:26:17,065 INFO L124 PetriNetUnfolderBase]: 53/357 cut-off events. [2023-12-09 15:26:17,065 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-12-09 15:26:17,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 357 events. 53/357 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1220 event pairs, 8 based on Foata normal form. 58/389 useless extension candidates. Maximal degree in co-relation 199. Up to 51 conditions per place. [2023-12-09 15:26:17,073 INFO L140 encePairwiseOnDemand]: 139/159 looper letters, 49 selfloop transitions, 6 changer transitions 10/163 dead transitions. [2023-12-09 15:26:17,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 163 transitions, 501 flow [2023-12-09 15:26:17,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:26:17,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:26:17,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1081 transitions. [2023-12-09 15:26:17,089 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7554157931516422 [2023-12-09 15:26:17,089 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1081 transitions. [2023-12-09 15:26:17,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1081 transitions. [2023-12-09 15:26:17,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:26:17,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1081 transitions. [2023-12-09 15:26:17,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 120.11111111111111) internal successors, (1081), 9 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:17,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:17,105 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:17,109 INFO L308 CegarLoopForPetriNet]: 143 programPoint places, 8 predicate places. [2023-12-09 15:26:17,109 INFO L500 AbstractCegarLoop]: Abstraction has has 151 places, 163 transitions, 501 flow [2023-12-09 15:26:17,110 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:17,110 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:26:17,110 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 15:26:17,111 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:26:17,111 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:26:17,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:26:17,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1273854514, now seen corresponding path program 1 times [2023-12-09 15:26:17,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:26:17,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156666614] [2023-12-09 15:26:17,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:26:17,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:26:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:26:17,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:26:17,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:26:17,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156666614] [2023-12-09 15:26:17,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156666614] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:26:17,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:26:17,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 15:26:17,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921615066] [2023-12-09 15:26:17,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:26:17,280 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:26:17,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:26:17,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:26:17,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:26:17,282 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 159 [2023-12-09 15:26:17,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 163 transitions, 501 flow. Second operand has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:17,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:26:17,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 159 [2023-12-09 15:26:17,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:26:17,585 INFO L124 PetriNetUnfolderBase]: 452/1545 cut-off events. [2023-12-09 15:26:17,585 INFO L125 PetriNetUnfolderBase]: For 646/727 co-relation queries the response was YES. [2023-12-09 15:26:17,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2856 conditions, 1545 events. 452/1545 cut-off events. For 646/727 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 10764 event pairs, 172 based on Foata normal form. 1/1322 useless extension candidates. Maximal degree in co-relation 1685. Up to 493 conditions per place. [2023-12-09 15:26:17,593 INFO L140 encePairwiseOnDemand]: 146/159 looper letters, 71 selfloop transitions, 14 changer transitions 11/200 dead transitions. [2023-12-09 15:26:17,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 200 transitions, 832 flow [2023-12-09 15:26:17,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 15:26:17,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 15:26:17,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1214 transitions. [2023-12-09 15:26:17,597 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7635220125786164 [2023-12-09 15:26:17,597 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1214 transitions. [2023-12-09 15:26:17,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1214 transitions. [2023-12-09 15:26:17,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:26:17,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1214 transitions. [2023-12-09 15:26:17,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 121.4) internal successors, (1214), 10 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:17,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:17,602 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:17,603 INFO L308 CegarLoopForPetriNet]: 143 programPoint places, 17 predicate places. [2023-12-09 15:26:17,603 INFO L500 AbstractCegarLoop]: Abstraction has has 160 places, 200 transitions, 832 flow [2023-12-09 15:26:17,604 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:17,604 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:26:17,604 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 15:26:17,604 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:26:17,604 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:26:17,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:26:17,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1115137970, now seen corresponding path program 1 times [2023-12-09 15:26:17,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:26:17,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553300060] [2023-12-09 15:26:17,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:26:17,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:26:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:26:17,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:26:17,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:26:17,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553300060] [2023-12-09 15:26:17,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553300060] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:26:17,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:26:17,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:26:17,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271035175] [2023-12-09 15:26:17,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:26:17,802 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:26:17,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:26:17,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:26:17,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:26:17,803 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 159 [2023-12-09 15:26:17,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 200 transitions, 832 flow. Second operand has 10 states, 10 states have (on average 90.3) internal successors, (903), 10 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:17,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:26:17,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 159 [2023-12-09 15:26:17,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:26:18,371 INFO L124 PetriNetUnfolderBase]: 1690/3524 cut-off events. [2023-12-09 15:26:18,371 INFO L125 PetriNetUnfolderBase]: For 3361/3852 co-relation queries the response was YES. [2023-12-09 15:26:18,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8869 conditions, 3524 events. 1690/3524 cut-off events. For 3361/3852 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 25519 event pairs, 1044 based on Foata normal form. 0/2829 useless extension candidates. Maximal degree in co-relation 6986. Up to 1938 conditions per place. [2023-12-09 15:26:18,413 INFO L140 encePairwiseOnDemand]: 141/159 looper letters, 119 selfloop transitions, 19 changer transitions 17/229 dead transitions. [2023-12-09 15:26:18,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 229 transitions, 1258 flow [2023-12-09 15:26:18,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-09 15:26:18,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-12-09 15:26:18,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1299 transitions. [2023-12-09 15:26:18,431 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5835579514824798 [2023-12-09 15:26:18,431 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1299 transitions. [2023-12-09 15:26:18,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1299 transitions. [2023-12-09 15:26:18,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:26:18,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1299 transitions. [2023-12-09 15:26:18,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 92.78571428571429) internal successors, (1299), 14 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:18,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 159.0) internal successors, (2385), 15 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:18,438 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 159.0) internal successors, (2385), 15 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:18,452 INFO L308 CegarLoopForPetriNet]: 143 programPoint places, 30 predicate places. [2023-12-09 15:26:18,452 INFO L500 AbstractCegarLoop]: Abstraction has has 173 places, 229 transitions, 1258 flow [2023-12-09 15:26:18,453 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 90.3) internal successors, (903), 10 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:18,453 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:26:18,453 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 15:26:18,453 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:26:18,454 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:26:18,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:26:18,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1388531140, now seen corresponding path program 1 times [2023-12-09 15:26:18,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:26:18,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174969473] [2023-12-09 15:26:18,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:26:18,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:26:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:26:18,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:26:18,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:26:18,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174969473] [2023-12-09 15:26:18,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174969473] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:26:18,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:26:18,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:26:18,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93288975] [2023-12-09 15:26:18,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:26:18,846 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:26:18,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:26:18,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:26:18,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:26:18,849 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 159 [2023-12-09 15:26:18,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 229 transitions, 1258 flow. Second operand has 10 states, 10 states have (on average 91.2) internal successors, (912), 10 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:18,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:26:18,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 159 [2023-12-09 15:26:18,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:26:19,562 INFO L124 PetriNetUnfolderBase]: 1954/3789 cut-off events. [2023-12-09 15:26:19,563 INFO L125 PetriNetUnfolderBase]: For 6540/7328 co-relation queries the response was YES. [2023-12-09 15:26:19,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12059 conditions, 3789 events. 1954/3789 cut-off events. For 6540/7328 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 26472 event pairs, 1197 based on Foata normal form. 1/3039 useless extension candidates. Maximal degree in co-relation 8695. Up to 2304 conditions per place. [2023-12-09 15:26:19,586 INFO L140 encePairwiseOnDemand]: 142/159 looper letters, 89 selfloop transitions, 10 changer transitions 57/229 dead transitions. [2023-12-09 15:26:19,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 229 transitions, 1573 flow [2023-12-09 15:26:19,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-09 15:26:19,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-12-09 15:26:19,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1311 transitions. [2023-12-09 15:26:19,589 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5889487870619946 [2023-12-09 15:26:19,589 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1311 transitions. [2023-12-09 15:26:19,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1311 transitions. [2023-12-09 15:26:19,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:26:19,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1311 transitions. [2023-12-09 15:26:19,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 93.64285714285714) internal successors, (1311), 14 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:19,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 159.0) internal successors, (2385), 15 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:19,594 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 159.0) internal successors, (2385), 15 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:19,595 INFO L308 CegarLoopForPetriNet]: 143 programPoint places, 43 predicate places. [2023-12-09 15:26:19,595 INFO L500 AbstractCegarLoop]: Abstraction has has 186 places, 229 transitions, 1573 flow [2023-12-09 15:26:19,595 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 91.2) internal successors, (912), 10 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:19,595 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:26:19,596 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:26:19,596 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:26:19,596 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:26:19,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:26:19,596 INFO L85 PathProgramCache]: Analyzing trace with hash -493556433, now seen corresponding path program 1 times [2023-12-09 15:26:19,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:26:19,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144470268] [2023-12-09 15:26:19,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:26:19,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:26:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:26:19,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:26:19,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:26:19,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144470268] [2023-12-09 15:26:19,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144470268] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:26:19,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251123260] [2023-12-09 15:26:19,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:26:19,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:26:19,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:26:19,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:26:19,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-09 15:26:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:26:19,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-09 15:26:19,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:26:20,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:26:20,068 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:26:20,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:26:20,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251123260] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-09 15:26:20,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:26:20,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2023-12-09 15:26:20,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306871149] [2023-12-09 15:26:20,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:26:20,222 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:26:20,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:26:20,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:26:20,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:26:20,224 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 159 [2023-12-09 15:26:20,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 229 transitions, 1573 flow. Second operand has 9 states, 9 states have (on average 110.88888888888889) internal successors, (998), 9 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:20,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:26:20,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 159 [2023-12-09 15:26:20,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:26:20,959 INFO L124 PetriNetUnfolderBase]: 3097/5535 cut-off events. [2023-12-09 15:26:20,959 INFO L125 PetriNetUnfolderBase]: For 11315/13113 co-relation queries the response was YES. [2023-12-09 15:26:21,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22317 conditions, 5535 events. 3097/5535 cut-off events. For 11315/13113 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 38076 event pairs, 736 based on Foata normal form. 43/4418 useless extension candidates. Maximal degree in co-relation 16644. Up to 3668 conditions per place. [2023-12-09 15:26:21,088 INFO L140 encePairwiseOnDemand]: 142/159 looper letters, 171 selfloop transitions, 27 changer transitions 59/353 dead transitions. [2023-12-09 15:26:21,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 353 transitions, 3201 flow [2023-12-09 15:26:21,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 15:26:21,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 15:26:21,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1186 transitions. [2023-12-09 15:26:21,091 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7459119496855345 [2023-12-09 15:26:21,091 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1186 transitions. [2023-12-09 15:26:21,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1186 transitions. [2023-12-09 15:26:21,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:26:21,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1186 transitions. [2023-12-09 15:26:21,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 118.6) internal successors, (1186), 10 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:21,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:21,096 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:21,096 INFO L308 CegarLoopForPetriNet]: 143 programPoint places, 52 predicate places. [2023-12-09 15:26:21,096 INFO L500 AbstractCegarLoop]: Abstraction has has 195 places, 353 transitions, 3201 flow [2023-12-09 15:26:21,097 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 110.88888888888889) internal successors, (998), 9 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:21,097 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:26:21,097 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:26:21,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-09 15:26:21,302 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:26:21,303 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:26:21,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:26:21,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1743330443, now seen corresponding path program 2 times [2023-12-09 15:26:21,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:26:21,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006946974] [2023-12-09 15:26:21,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:26:21,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:26:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:26:21,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:26:21,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:26:21,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006946974] [2023-12-09 15:26:21,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006946974] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:26:21,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365185316] [2023-12-09 15:26:21,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:26:21,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:26:21,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:26:21,456 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:26:21,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-09 15:26:21,576 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:26:21,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:26:21,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-09 15:26:21,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:26:21,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:21,645 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:26:21,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:21,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365185316] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:26:21,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:26:21,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 15 [2023-12-09 15:26:21,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64556325] [2023-12-09 15:26:21,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:26:21,716 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-09 15:26:21,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:26:21,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-09 15:26:21,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-12-09 15:26:21,718 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 159 [2023-12-09 15:26:21,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 353 transitions, 3201 flow. Second operand has 15 states, 15 states have (on average 107.4) internal successors, (1611), 15 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:21,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:26:21,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 159 [2023-12-09 15:26:21,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:26:23,425 INFO L124 PetriNetUnfolderBase]: 4767/8543 cut-off events. [2023-12-09 15:26:23,425 INFO L125 PetriNetUnfolderBase]: For 11992/15466 co-relation queries the response was YES. [2023-12-09 15:26:23,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38618 conditions, 8543 events. 4767/8543 cut-off events. For 11992/15466 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 62720 event pairs, 325 based on Foata normal form. 33/7496 useless extension candidates. Maximal degree in co-relation 30749. Up to 5011 conditions per place. [2023-12-09 15:26:23,493 INFO L140 encePairwiseOnDemand]: 138/159 looper letters, 497 selfloop transitions, 156 changer transitions 68/813 dead transitions. [2023-12-09 15:26:23,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 813 transitions, 8856 flow [2023-12-09 15:26:23,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-09 15:26:23,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2023-12-09 15:26:23,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 3765 transitions. [2023-12-09 15:26:23,499 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7175528873642081 [2023-12-09 15:26:23,499 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 3765 transitions. [2023-12-09 15:26:23,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 3765 transitions. [2023-12-09 15:26:23,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:26:23,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 3765 transitions. [2023-12-09 15:26:23,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 114.0909090909091) internal successors, (3765), 33 states have internal predecessors, (3765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:23,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 159.0) internal successors, (5406), 34 states have internal predecessors, (5406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:23,512 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 159.0) internal successors, (5406), 34 states have internal predecessors, (5406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:23,513 INFO L308 CegarLoopForPetriNet]: 143 programPoint places, 84 predicate places. [2023-12-09 15:26:23,513 INFO L500 AbstractCegarLoop]: Abstraction has has 227 places, 813 transitions, 8856 flow [2023-12-09 15:26:23,514 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 107.4) internal successors, (1611), 15 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:23,514 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:26:23,514 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:26:23,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-09 15:26:23,719 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-09 15:26:23,720 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:26:23,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:26:23,720 INFO L85 PathProgramCache]: Analyzing trace with hash -2122240197, now seen corresponding path program 1 times [2023-12-09 15:26:23,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:26:23,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841652763] [2023-12-09 15:26:23,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:26:23,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:26:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:26:23,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:23,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:26:23,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841652763] [2023-12-09 15:26:23,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841652763] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:26:23,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933158550] [2023-12-09 15:26:23,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:26:23,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:26:23,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:26:23,834 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:26:23,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-09 15:26:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:26:23,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-09 15:26:24,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:26:24,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:24,129 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:26:24,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:24,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933158550] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-09 15:26:24,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:26:24,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2023-12-09 15:26:24,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083257483] [2023-12-09 15:26:24,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:26:24,253 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:26:24,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:26:24,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:26:24,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-12-09 15:26:24,254 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 159 [2023-12-09 15:26:24,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 813 transitions, 8856 flow. Second operand has 7 states, 7 states have (on average 119.14285714285714) internal successors, (834), 7 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:24,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:26:24,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 159 [2023-12-09 15:26:24,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:26:25,191 INFO L124 PetriNetUnfolderBase]: 3725/6720 cut-off events. [2023-12-09 15:26:25,192 INFO L125 PetriNetUnfolderBase]: For 14166/16735 co-relation queries the response was YES. [2023-12-09 15:26:25,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33223 conditions, 6720 events. 3725/6720 cut-off events. For 14166/16735 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 46388 event pairs, 261 based on Foata normal form. 12/6006 useless extension candidates. Maximal degree in co-relation 28350. Up to 3801 conditions per place. [2023-12-09 15:26:25,261 INFO L140 encePairwiseOnDemand]: 148/159 looper letters, 425 selfloop transitions, 65 changer transitions 57/793 dead transitions. [2023-12-09 15:26:25,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 793 transitions, 9514 flow [2023-12-09 15:26:25,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 15:26:25,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 15:26:25,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 864 transitions. [2023-12-09 15:26:25,263 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7762803234501348 [2023-12-09 15:26:25,264 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 864 transitions. [2023-12-09 15:26:25,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 864 transitions. [2023-12-09 15:26:25,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:26:25,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 864 transitions. [2023-12-09 15:26:25,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 123.42857142857143) internal successors, (864), 7 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:25,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:25,267 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:25,267 INFO L308 CegarLoopForPetriNet]: 143 programPoint places, 89 predicate places. [2023-12-09 15:26:25,268 INFO L500 AbstractCegarLoop]: Abstraction has has 232 places, 793 transitions, 9514 flow [2023-12-09 15:26:25,268 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 119.14285714285714) internal successors, (834), 7 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:25,268 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:26:25,268 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:26:25,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-09 15:26:25,473 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:26:25,475 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:26:25,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:26:25,476 INFO L85 PathProgramCache]: Analyzing trace with hash 777718151, now seen corresponding path program 3 times [2023-12-09 15:26:25,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:26:25,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128318301] [2023-12-09 15:26:25,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:26:25,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:26:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:26:25,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:26:25,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:26:25,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128318301] [2023-12-09 15:26:25,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128318301] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:26:25,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169451201] [2023-12-09 15:26:25,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-09 15:26:25,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:26:25,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:26:25,619 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:26:25,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-09 15:26:25,737 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-09 15:26:25,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:26:25,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-09 15:26:25,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:26:25,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:25,867 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:26:25,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:25,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169451201] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:26:25,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:26:25,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 15 [2023-12-09 15:26:25,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065988395] [2023-12-09 15:26:25,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:26:25,941 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-09 15:26:25,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:26:25,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-09 15:26:25,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-12-09 15:26:25,943 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 159 [2023-12-09 15:26:25,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 793 transitions, 9514 flow. Second operand has 15 states, 15 states have (on average 107.8) internal successors, (1617), 15 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:25,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:26:25,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 159 [2023-12-09 15:26:25,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:26:28,092 INFO L124 PetriNetUnfolderBase]: 6010/10701 cut-off events. [2023-12-09 15:26:28,093 INFO L125 PetriNetUnfolderBase]: For 23333/29118 co-relation queries the response was YES. [2023-12-09 15:26:28,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62040 conditions, 10701 events. 6010/10701 cut-off events. For 23333/29118 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 79261 event pairs, 180 based on Foata normal form. 91/9669 useless extension candidates. Maximal degree in co-relation 54544. Up to 6207 conditions per place. [2023-12-09 15:26:28,218 INFO L140 encePairwiseOnDemand]: 139/159 looper letters, 1096 selfloop transitions, 376 changer transitions 57/1615 dead transitions. [2023-12-09 15:26:28,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 1615 transitions, 22968 flow [2023-12-09 15:26:28,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-09 15:26:28,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-12-09 15:26:28,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3307 transitions. [2023-12-09 15:26:28,223 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7171980047711993 [2023-12-09 15:26:28,223 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 3307 transitions. [2023-12-09 15:26:28,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 3307 transitions. [2023-12-09 15:26:28,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:26:28,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 3307 transitions. [2023-12-09 15:26:28,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 114.03448275862068) internal successors, (3307), 29 states have internal predecessors, (3307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:28,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 159.0) internal successors, (4770), 30 states have internal predecessors, (4770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:28,238 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 159.0) internal successors, (4770), 30 states have internal predecessors, (4770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:28,240 INFO L308 CegarLoopForPetriNet]: 143 programPoint places, 117 predicate places. [2023-12-09 15:26:28,241 INFO L500 AbstractCegarLoop]: Abstraction has has 260 places, 1615 transitions, 22968 flow [2023-12-09 15:26:28,251 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 107.8) internal successors, (1617), 15 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:28,251 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:26:28,251 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:26:28,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-09 15:26:28,456 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:26:28,457 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:26:28,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:26:28,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1396113995, now seen corresponding path program 4 times [2023-12-09 15:26:28,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:26:28,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631163010] [2023-12-09 15:26:28,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:26:28,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:26:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:26:28,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:28,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:26:28,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631163010] [2023-12-09 15:26:28,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631163010] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:26:28,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241329915] [2023-12-09 15:26:28,724 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-09 15:26:28,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:26:28,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:26:28,745 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:26:28,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-09 15:26:28,826 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-09 15:26:28,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:26:28,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-09 15:26:28,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:26:28,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:28,966 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:26:29,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:29,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241329915] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-09 15:26:29,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:26:29,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2023-12-09 15:26:29,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726276983] [2023-12-09 15:26:29,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:26:29,148 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:26:29,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:26:29,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:26:29,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:26:29,149 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 159 [2023-12-09 15:26:29,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 1615 transitions, 22968 flow. Second operand has 9 states, 9 states have (on average 110.88888888888889) internal successors, (998), 9 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:29,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:26:29,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 159 [2023-12-09 15:26:29,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:26:31,352 INFO L124 PetriNetUnfolderBase]: 5985/10697 cut-off events. [2023-12-09 15:26:31,352 INFO L125 PetriNetUnfolderBase]: For 25249/28919 co-relation queries the response was YES. [2023-12-09 15:26:31,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69460 conditions, 10697 events. 5985/10697 cut-off events. For 25249/28919 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 79497 event pairs, 161 based on Foata normal form. 109/9715 useless extension candidates. Maximal degree in co-relation 66129. Up to 6182 conditions per place. [2023-12-09 15:26:31,460 INFO L140 encePairwiseOnDemand]: 141/159 looper letters, 990 selfloop transitions, 242 changer transitions 57/1615 dead transitions. [2023-12-09 15:26:31,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 1615 transitions, 25511 flow [2023-12-09 15:26:31,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-09 15:26:31,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-12-09 15:26:31,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1312 transitions. [2023-12-09 15:26:31,463 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7501429388221841 [2023-12-09 15:26:31,463 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1312 transitions. [2023-12-09 15:26:31,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1312 transitions. [2023-12-09 15:26:31,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:26:31,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1312 transitions. [2023-12-09 15:26:31,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 119.27272727272727) internal successors, (1312), 11 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:31,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 159.0) internal successors, (1908), 12 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:31,469 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 159.0) internal successors, (1908), 12 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:31,469 INFO L308 CegarLoopForPetriNet]: 143 programPoint places, 127 predicate places. [2023-12-09 15:26:31,469 INFO L500 AbstractCegarLoop]: Abstraction has has 270 places, 1615 transitions, 25511 flow [2023-12-09 15:26:31,470 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 110.88888888888889) internal successors, (998), 9 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:31,470 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:26:31,470 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:26:31,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-09 15:26:31,674 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:26:31,674 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:26:31,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:26:31,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1796557957, now seen corresponding path program 5 times [2023-12-09 15:26:31,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:26:31,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555064137] [2023-12-09 15:26:31,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:26:31,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:26:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:26:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:31,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:26:31,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555064137] [2023-12-09 15:26:31,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555064137] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:26:31,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223723934] [2023-12-09 15:26:31,786 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-09 15:26:31,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:26:31,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:26:31,806 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:26:31,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-09 15:26:31,890 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:26:31,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:26:31,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-09 15:26:31,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:26:31,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:31,966 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:26:32,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:32,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223723934] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:26:32,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:26:32,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 17 [2023-12-09 15:26:32,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905287464] [2023-12-09 15:26:32,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:26:32,040 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-09 15:26:32,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:26:32,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-09 15:26:32,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-12-09 15:26:32,042 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 159 [2023-12-09 15:26:32,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 1615 transitions, 25511 flow. Second operand has 17 states, 17 states have (on average 107.0) internal successors, (1819), 17 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:32,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:26:32,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 159 [2023-12-09 15:26:32,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:26:36,067 INFO L124 PetriNetUnfolderBase]: 7871/13938 cut-off events. [2023-12-09 15:26:36,067 INFO L125 PetriNetUnfolderBase]: For 37135/43114 co-relation queries the response was YES. [2023-12-09 15:26:36,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102364 conditions, 13938 events. 7871/13938 cut-off events. For 37135/43114 co-relation queries the response was YES. Maximal size of possible extension queue 579. Compared 106909 event pairs, 162 based on Foata normal form. 208/12770 useless extension candidates. Maximal degree in co-relation 98337. Up to 7947 conditions per place. [2023-12-09 15:26:36,202 INFO L140 encePairwiseOnDemand]: 137/159 looper letters, 1431 selfloop transitions, 515 changer transitions 57/2089 dead transitions. [2023-12-09 15:26:36,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 2089 transitions, 36821 flow [2023-12-09 15:26:36,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-09 15:26:36,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-12-09 15:26:36,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3117 transitions. [2023-12-09 15:26:36,205 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7260656883298393 [2023-12-09 15:26:36,205 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 3117 transitions. [2023-12-09 15:26:36,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 3117 transitions. [2023-12-09 15:26:36,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:26:36,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 3117 transitions. [2023-12-09 15:26:36,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 115.44444444444444) internal successors, (3117), 27 states have internal predecessors, (3117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:36,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 159.0) internal successors, (4452), 28 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:36,214 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 159.0) internal successors, (4452), 28 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:36,214 INFO L308 CegarLoopForPetriNet]: 143 programPoint places, 153 predicate places. [2023-12-09 15:26:36,214 INFO L500 AbstractCegarLoop]: Abstraction has has 296 places, 2089 transitions, 36821 flow [2023-12-09 15:26:36,215 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 107.0) internal successors, (1819), 17 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:36,215 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:26:36,215 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:26:36,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-09 15:26:36,435 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:26:36,435 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:26:36,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:26:36,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1760880949, now seen corresponding path program 6 times [2023-12-09 15:26:36,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:26:36,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745229601] [2023-12-09 15:26:36,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:26:36,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:26:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:26:36,560 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:36,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:26:36,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745229601] [2023-12-09 15:26:36,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745229601] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:26:36,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228594592] [2023-12-09 15:26:36,561 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-09 15:26:36,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:26:36,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:26:36,578 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:26:36,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-09 15:26:36,667 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2023-12-09 15:26:36,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:26:36,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-09 15:26:36,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:26:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:36,794 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:26:36,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:36,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228594592] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-09 15:26:36,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:26:36,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 20 [2023-12-09 15:26:36,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100058869] [2023-12-09 15:26:36,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:26:36,987 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:26:36,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:26:36,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:26:36,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:26:36,988 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 159 [2023-12-09 15:26:36,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 2089 transitions, 36821 flow. Second operand has 9 states, 9 states have (on average 110.88888888888889) internal successors, (998), 9 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:36,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:26:36,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 159 [2023-12-09 15:26:36,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:26:40,676 INFO L124 PetriNetUnfolderBase]: 7798/13753 cut-off events. [2023-12-09 15:26:40,676 INFO L125 PetriNetUnfolderBase]: For 41349/48779 co-relation queries the response was YES. [2023-12-09 15:26:40,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111172 conditions, 13753 events. 7798/13753 cut-off events. For 41349/48779 co-relation queries the response was YES. Maximal size of possible extension queue 562. Compared 104720 event pairs, 187 based on Foata normal form. 50/12454 useless extension candidates. Maximal degree in co-relation 98840. Up to 7865 conditions per place. [2023-12-09 15:26:40,818 INFO L140 encePairwiseOnDemand]: 142/159 looper letters, 1253 selfloop transitions, 282 changer transitions 57/2026 dead transitions. [2023-12-09 15:26:40,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 2026 transitions, 38918 flow [2023-12-09 15:26:40,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 15:26:40,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 15:26:40,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1185 transitions. [2023-12-09 15:26:40,820 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7452830188679245 [2023-12-09 15:26:40,820 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1185 transitions. [2023-12-09 15:26:40,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1185 transitions. [2023-12-09 15:26:40,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:26:40,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1185 transitions. [2023-12-09 15:26:40,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 118.5) internal successors, (1185), 10 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:40,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:40,824 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:40,824 INFO L308 CegarLoopForPetriNet]: 143 programPoint places, 162 predicate places. [2023-12-09 15:26:40,824 INFO L500 AbstractCegarLoop]: Abstraction has has 305 places, 2026 transitions, 38918 flow [2023-12-09 15:26:40,824 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 110.88888888888889) internal successors, (998), 9 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:40,825 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:26:40,825 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:26:40,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-09 15:26:41,038 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:26:41,041 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:26:41,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:26:41,041 INFO L85 PathProgramCache]: Analyzing trace with hash 957731967, now seen corresponding path program 1 times [2023-12-09 15:26:41,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:26:41,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763174888] [2023-12-09 15:26:41,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:26:41,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:26:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:26:42,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:26:42,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:26:42,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763174888] [2023-12-09 15:26:42,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763174888] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:26:42,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047765883] [2023-12-09 15:26:42,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:26:42,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:26:42,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:26:42,405 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:26:42,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-09 15:26:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:26:42,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 53 conjunts are in the unsatisfiable core [2023-12-09 15:26:42,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:26:42,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-09 15:26:42,578 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-09 15:26:42,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2023-12-09 15:26:42,617 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-12-09 15:26:42,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2023-12-09 15:26:42,887 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-12-09 15:26:42,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 30 [2023-12-09 15:26:43,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-09 15:26:43,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-09 15:26:43,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-09 15:26:43,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-09 15:26:43,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-12-09 15:26:43,525 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:26:43,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:26:43,640 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_320 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_320) c_~A~0.base))) (= (+ c_~res1~0 (select .cse0 (+ (* |c_thread1Thread1of1ForFork1_~i~0#1| 4) c_~A~0.offset))) (+ (select .cse0 c_~A~0.offset) c_~res2~0)))) is different from false [2023-12-09 15:26:43,673 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_319 (Array Int Int)) (v_ArrVal_320 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_319) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_320) c_~A~0.base))) (= (+ c_~res2~0 (select .cse0 c_~A~0.offset)) (+ (select .cse0 (+ (* |c_thread1Thread1of1ForFork1_~i~0#1| 4) c_~A~0.offset)) c_~res1~0)))) is different from false [2023-12-09 15:26:45,939 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:45,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047765883] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:26:45,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:26:45,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 13] total 46 [2023-12-09 15:26:45,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358579974] [2023-12-09 15:26:45,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:26:45,940 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-09 15:26:45,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:26:45,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-09 15:26:45,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=1628, Unknown=3, NotChecked=170, Total=2070 [2023-12-09 15:26:45,943 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 159 [2023-12-09 15:26:45,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 2026 transitions, 38918 flow. Second operand has 46 states, 46 states have (on average 62.28260869565217) internal successors, (2865), 46 states have internal predecessors, (2865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:45,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:26:45,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 159 [2023-12-09 15:26:45,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:26:55,742 INFO L124 PetriNetUnfolderBase]: 21574/35591 cut-off events. [2023-12-09 15:26:55,742 INFO L125 PetriNetUnfolderBase]: For 136637/139133 co-relation queries the response was YES. [2023-12-09 15:26:55,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294685 conditions, 35591 events. 21574/35591 cut-off events. For 136637/139133 co-relation queries the response was YES. Maximal size of possible extension queue 1570. Compared 294171 event pairs, 705 based on Foata normal form. 52/31731 useless extension candidates. Maximal degree in co-relation 263941. Up to 19461 conditions per place. [2023-12-09 15:26:56,447 INFO L140 encePairwiseOnDemand]: 125/159 looper letters, 2322 selfloop transitions, 692 changer transitions 69/3445 dead transitions. [2023-12-09 15:26:56,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 3445 transitions, 71416 flow [2023-12-09 15:26:56,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-09 15:26:56,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2023-12-09 15:26:56,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 2231 transitions. [2023-12-09 15:26:56,451 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.4126896041435442 [2023-12-09 15:26:56,451 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 2231 transitions. [2023-12-09 15:26:56,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 2231 transitions. [2023-12-09 15:26:56,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:26:56,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 2231 transitions. [2023-12-09 15:26:56,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 65.61764705882354) internal successors, (2231), 34 states have internal predecessors, (2231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:56,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 159.0) internal successors, (5565), 35 states have internal predecessors, (5565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:56,460 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 159.0) internal successors, (5565), 35 states have internal predecessors, (5565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:56,461 INFO L308 CegarLoopForPetriNet]: 143 programPoint places, 195 predicate places. [2023-12-09 15:26:56,461 INFO L500 AbstractCegarLoop]: Abstraction has has 338 places, 3445 transitions, 71416 flow [2023-12-09 15:26:56,461 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 62.28260869565217) internal successors, (2865), 46 states have internal predecessors, (2865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:56,462 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:26:56,462 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:26:56,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-09 15:26:56,667 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-09 15:26:56,667 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:26:56,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:26:56,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1032285831, now seen corresponding path program 1 times [2023-12-09 15:26:56,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:26:56,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630581596] [2023-12-09 15:26:56,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:26:56,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:26:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:26:57,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:57,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:26:57,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630581596] [2023-12-09 15:26:57,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630581596] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:26:57,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488316133] [2023-12-09 15:26:57,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:26:57,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:26:57,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:26:57,289 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:26:57,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-09 15:26:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:26:57,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-09 15:26:57,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:26:57,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-12-09 15:26:57,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:57,993 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:26:58,133 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-09 15:26:58,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 16 [2023-12-09 15:26:58,392 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:26:58,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488316133] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:26:58,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:26:58,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20, 14] total 38 [2023-12-09 15:26:58,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174375633] [2023-12-09 15:26:58,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:26:58,394 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-09 15:26:58,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:26:58,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-09 15:26:58,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1221, Unknown=0, NotChecked=0, Total=1406 [2023-12-09 15:26:58,398 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 159 [2023-12-09 15:26:58,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 3445 transitions, 71416 flow. Second operand has 38 states, 38 states have (on average 69.36842105263158) internal successors, (2636), 38 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:26:58,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:26:58,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 159 [2023-12-09 15:26:58,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:27:35,384 INFO L124 PetriNetUnfolderBase]: 47527/76649 cut-off events. [2023-12-09 15:27:35,384 INFO L125 PetriNetUnfolderBase]: For 425010/426162 co-relation queries the response was YES. [2023-12-09 15:27:35,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686489 conditions, 76649 events. 47527/76649 cut-off events. For 425010/426162 co-relation queries the response was YES. Maximal size of possible extension queue 3648. Compared 695056 event pairs, 1264 based on Foata normal form. 113/69600 useless extension candidates. Maximal degree in co-relation 672782. Up to 42008 conditions per place. [2023-12-09 15:27:36,577 INFO L140 encePairwiseOnDemand]: 119/159 looper letters, 6697 selfloop transitions, 3751 changer transitions 126/10630 dead transitions. [2023-12-09 15:27:36,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 10630 transitions, 246226 flow [2023-12-09 15:27:36,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2023-12-09 15:27:36,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2023-12-09 15:27:36,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 7769 transitions. [2023-12-09 15:27:36,584 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.47438480796238625 [2023-12-09 15:27:36,584 INFO L72 ComplementDD]: Start complementDD. Operand 103 states and 7769 transitions. [2023-12-09 15:27:36,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 7769 transitions. [2023-12-09 15:27:36,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:27:36,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 103 states and 7769 transitions. [2023-12-09 15:27:36,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 104 states, 103 states have (on average 75.42718446601941) internal successors, (7769), 103 states have internal predecessors, (7769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:27:36,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 104 states, 104 states have (on average 159.0) internal successors, (16536), 104 states have internal predecessors, (16536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:27:36,608 INFO L81 ComplementDD]: Finished complementDD. Result has 104 states, 104 states have (on average 159.0) internal successors, (16536), 104 states have internal predecessors, (16536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:27:36,609 INFO L308 CegarLoopForPetriNet]: 143 programPoint places, 297 predicate places. [2023-12-09 15:27:36,609 INFO L500 AbstractCegarLoop]: Abstraction has has 440 places, 10630 transitions, 246226 flow [2023-12-09 15:27:36,609 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 69.36842105263158) internal successors, (2636), 38 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:27:36,610 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:27:36,610 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:27:36,630 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-09 15:27:36,815 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-09 15:27:36,815 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:27:36,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:27:36,816 INFO L85 PathProgramCache]: Analyzing trace with hash -444117117, now seen corresponding path program 2 times [2023-12-09 15:27:36,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:27:36,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392519812] [2023-12-09 15:27:36,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:27:36,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:27:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:27:38,203 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:27:38,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:27:38,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392519812] [2023-12-09 15:27:38,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392519812] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:27:38,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397906376] [2023-12-09 15:27:38,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:27:38,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:27:38,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:27:38,217 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:27:38,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-09 15:27:38,334 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:27:38,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:27:38,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 59 conjunts are in the unsatisfiable core [2023-12-09 15:27:38,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:27:38,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-09 15:27:38,405 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-09 15:27:38,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2023-12-09 15:27:38,833 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-09 15:27:38,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-12-09 15:27:39,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-09 15:27:39,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-09 15:27:39,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-09 15:27:39,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-09 15:27:39,862 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-09 15:27:39,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 15 [2023-12-09 15:27:40,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:27:40,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:27:41,605 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-09 15:27:41,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 50 [2023-12-09 15:27:41,615 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-09 15:27:41,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1622 treesize of output 1534 [2023-12-09 15:27:41,630 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-09 15:27:41,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 88 [2023-12-09 15:27:41,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-09 15:27:41,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 72 [2023-12-09 15:27:41,653 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-09 15:27:41,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 71 [2023-12-09 15:27:42,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-09 15:27:42,528 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:27:42,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397906376] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:27:42,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:27:42,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 31, 27] total 77 [2023-12-09 15:27:42,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202290670] [2023-12-09 15:27:42,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:27:42,529 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2023-12-09 15:27:42,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:27:42,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2023-12-09 15:27:42,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=881, Invalid=4923, Unknown=48, NotChecked=0, Total=5852 [2023-12-09 15:27:42,533 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 159 [2023-12-09 15:27:42,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 10630 transitions, 246226 flow. Second operand has 77 states, 77 states have (on average 46.05194805194805) internal successors, (3546), 77 states have internal predecessors, (3546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:27:42,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:27:42,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 159 [2023-12-09 15:27:42,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-12-09 15:30:28,091 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:30:28,102 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:30:28,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2023-12-09 15:30:28,403 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-12-09 15:30:28,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-09 15:30:28,607 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-09 15:30:28,608 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (77states, 43/159 universal loopers) in iteration 14,while PetriNetUnfolder was constructing finite prefix that currently has 836021 conditions, 83475 events (53007/83474 cut-off events. For 462977/465419 co-relation queries the response was YES. Maximal size of possible extension queue 5055. Compared 782901 event pairs, 2184 based on Foata normal form. 175/78146 useless extension candidates. Maximal degree in co-relation 713616. Up to 46173 conditions per place.). [2023-12-09 15:30:28,609 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-12-09 15:30:28,609 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-12-09 15:30:28,609 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-12-09 15:30:28,610 INFO L457 BasicCegarLoop]: Path program histogram: [6, 2, 1, 1, 1, 1, 1, 1] [2023-12-09 15:30:28,612 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:30:28,612 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:30:28,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:30:28 BasicIcfg [2023-12-09 15:30:28,614 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:30:28,615 INFO L158 Benchmark]: Toolchain (without parser) took 253520.98ms. Allocated memory was 213.9MB in the beginning and 4.6GB in the end (delta: 4.4GB). Free memory was 171.9MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-09 15:30:28,615 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 169.9MB. Free memory is still 117.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:30:28,615 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.14ms. Allocated memory is still 213.9MB. Free memory was 171.9MB in the beginning and 159.0MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-09 15:30:28,615 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.18ms. Allocated memory is still 213.9MB. Free memory was 159.0MB in the beginning and 156.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:30:28,615 INFO L158 Benchmark]: Boogie Preprocessor took 26.92ms. Allocated memory is still 213.9MB. Free memory was 156.9MB in the beginning and 155.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:30:28,615 INFO L158 Benchmark]: RCFGBuilder took 564.44ms. Allocated memory is still 213.9MB. Free memory was 154.8MB in the beginning and 116.0MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-12-09 15:30:28,616 INFO L158 Benchmark]: TraceAbstraction took 252636.15ms. Allocated memory was 213.9MB in the beginning and 4.6GB in the end (delta: 4.4GB). Free memory was 115.5MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-09 15:30:28,616 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 169.9MB. Free memory is still 117.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 252.14ms. Allocated memory is still 213.9MB. Free memory was 171.9MB in the beginning and 159.0MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.18ms. Allocated memory is still 213.9MB. Free memory was 159.0MB in the beginning and 156.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.92ms. Allocated memory is still 213.9MB. Free memory was 156.9MB in the beginning and 155.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 564.44ms. Allocated memory is still 213.9MB. Free memory was 154.8MB in the beginning and 116.0MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * TraceAbstraction took 252636.15ms. Allocated memory was 213.9MB in the beginning and 4.6GB in the end (delta: 4.4GB). Free memory was 115.5MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (77states, 43/159 universal loopers) in iteration 14,while PetriNetUnfolder was constructing finite prefix that currently has 836021 conditions, 83475 events (53007/83474 cut-off events. For 462977/465419 co-relation queries the response was YES. Maximal size of possible extension queue 5055. Compared 782901 event pairs, 2184 based on Foata normal form. 175/78146 useless extension candidates. Maximal degree in co-relation 713616. Up to 46173 conditions per place.). - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (77states, 43/159 universal loopers) in iteration 14,while PetriNetUnfolder was constructing finite prefix that currently has 836021 conditions, 83475 events (53007/83474 cut-off events. For 462977/465419 co-relation queries the response was YES. Maximal size of possible extension queue 5055. Compared 782901 event pairs, 2184 based on Foata normal form. 175/78146 useless extension candidates. Maximal degree in co-relation 713616. Up to 46173 conditions per place.). - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (77states, 43/159 universal loopers) in iteration 14,while PetriNetUnfolder was constructing finite prefix that currently has 836021 conditions, 83475 events (53007/83474 cut-off events. For 462977/465419 co-relation queries the response was YES. Maximal size of possible extension queue 5055. Compared 782901 event pairs, 2184 based on Foata normal form. 175/78146 useless extension candidates. Maximal degree in co-relation 713616. Up to 46173 conditions per place.). - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (77states, 43/159 universal loopers) in iteration 14,while PetriNetUnfolder was constructing finite prefix that currently has 836021 conditions, 83475 events (53007/83474 cut-off events. For 462977/465419 co-relation queries the response was YES. Maximal size of possible extension queue 5055. Compared 782901 event pairs, 2184 based on Foata normal form. 175/78146 useless extension candidates. Maximal degree in co-relation 713616. Up to 46173 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 184 locations, 4 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: 252.5s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 232.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4751 SdHoareTripleChecker+Valid, 9.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4751 mSDsluCounter, 10093 SdHoareTripleChecker+Invalid, 7.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 480 IncrementalHoareTripleChecker+Unchecked, 9236 mSDsCounter, 192 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18598 IncrementalHoareTripleChecker+Invalid, 19270 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 192 mSolverCounterUnsat, 857 mSDtfsCounter, 18598 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3043 GetRequests, 2355 SyntacticMatches, 20 SemanticMatches, 668 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 26986 ImplicationChecksByTransitivity, 16.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=246226occurred in iteration=13, InterpolantAutomatonStates: 311, 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: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 15.6s InterpolantComputationTime, 2945 NumberOfCodeBlocks, 2934 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 4156 ConstructedInterpolants, 119 QuantifiedInterpolants, 23093 SizeOfPredicates, 132 NumberOfNonLiveVariables, 3070 ConjunctsInSsa, 200 ConjunctsInUnsatCore, 34 InterpolantComputations, 8 PerfectInterpolantSequences, 31/72 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown