/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/bench-exp2x4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:05:24,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:05:24,886 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 15:05:24,910 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:05:24,911 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:05:24,911 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:05:24,911 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:05:24,912 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:05:24,912 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:05:24,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:05:24,916 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:05:24,916 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:05:24,916 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:05:24,917 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:05:24,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:05:24,917 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:05:24,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:05:24,918 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:05:24,918 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:05:24,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:05:24,918 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:05:24,919 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:05:24,919 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:05:24,919 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:05:24,919 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:05:24,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:05:24,919 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:05:24,920 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:05:24,920 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:05:24,920 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:05:24,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:05:24,921 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:05:24,921 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:05:24,921 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:05:25,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:05:25,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:05:25,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:05:25,088 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:05:25,088 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:05:25,089 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c [2023-12-09 15:05:26,235 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:05:26,391 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:05:26,391 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c [2023-12-09 15:05:26,401 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7221acbe4/31de5d8cae894654b45a0fdd28263d8c/FLAG77c045d4e [2023-12-09 15:05:26,415 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7221acbe4/31de5d8cae894654b45a0fdd28263d8c [2023-12-09 15:05:26,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:05:26,418 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:05:26,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:05:26,421 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:05:26,424 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:05:26,424 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:05:26" (1/1) ... [2023-12-09 15:05:26,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b65b748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:05:26, skipping insertion in model container [2023-12-09 15:05:26,426 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:05:26" (1/1) ... [2023-12-09 15:05:26,447 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:05:26,612 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/bench-exp2x4.wvr.c[2361,2374] [2023-12-09 15:05:26,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:05:26,633 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:05:26,656 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/bench-exp2x4.wvr.c[2361,2374] [2023-12-09 15:05:26,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:05:26,670 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:05:26,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:05:26 WrapperNode [2023-12-09 15:05:26,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:05:26,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:05:26,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:05:26,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:05:26,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:05:26" (1/1) ... [2023-12-09 15:05:26,689 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:05:26" (1/1) ... [2023-12-09 15:05:26,702 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2023-12-09 15:05:26,702 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:05:26,703 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:05:26,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:05:26,703 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:05:26,708 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:05:26" (1/1) ... [2023-12-09 15:05:26,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:05:26" (1/1) ... [2023-12-09 15:05:26,710 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:05:26" (1/1) ... [2023-12-09 15:05:26,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:05:26" (1/1) ... [2023-12-09 15:05:26,727 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:05:26" (1/1) ... [2023-12-09 15:05:26,733 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:05:26" (1/1) ... [2023-12-09 15:05:26,735 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:05:26" (1/1) ... [2023-12-09 15:05:26,735 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:05:26" (1/1) ... [2023-12-09 15:05:26,737 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:05:26,737 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:05:26,737 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:05:26,738 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:05:26,738 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:05:26" (1/1) ... [2023-12-09 15:05:26,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:05:26,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:05:26,774 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 15:05:26,791 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 15:05:26,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:05:26,805 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:05:26,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:05:26,805 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:05:26,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:05:26,805 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:05:26,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:05:26,805 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-12-09 15:05:26,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-12-09 15:05:26,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:05:26,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:05:26,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:05:26,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:05:26,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:05:26,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:05:26,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:05:26,807 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 15:05:26,877 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:05:26,879 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:05:27,053 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:05:27,061 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:05:27,062 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-09 15:05:27,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:05:27 BoogieIcfgContainer [2023-12-09 15:05:27,063 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:05:27,064 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:05:27,065 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:05:27,066 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:05:27,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:05:26" (1/3) ... [2023-12-09 15:05:27,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4a8320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:05:27, skipping insertion in model container [2023-12-09 15:05:27,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:05:26" (2/3) ... [2023-12-09 15:05:27,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4a8320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:05:27, skipping insertion in model container [2023-12-09 15:05:27,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:05:27" (3/3) ... [2023-12-09 15:05:27,068 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x4.wvr.c [2023-12-09 15:05:27,080 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:05:27,081 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:05:27,081 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:05:27,137 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-12-09 15:05:27,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 134 transitions, 296 flow [2023-12-09 15:05:27,227 INFO L124 PetriNetUnfolderBase]: 10/130 cut-off events. [2023-12-09 15:05:27,227 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-12-09 15:05:27,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 130 events. 10/130 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2023-12-09 15:05:27,235 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 134 transitions, 296 flow [2023-12-09 15:05:27,238 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 117 transitions, 258 flow [2023-12-09 15:05:27,246 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:05:27,250 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;@46f3b785, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:05:27,250 INFO L363 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-12-09 15:05:27,274 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:05:27,274 INFO L124 PetriNetUnfolderBase]: 10/116 cut-off events. [2023-12-09 15:05:27,274 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-12-09 15:05:27,274 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:05:27,275 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] [2023-12-09 15:05:27,275 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 2 more)] === [2023-12-09 15:05:27,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:05:27,279 INFO L85 PathProgramCache]: Analyzing trace with hash -233516485, now seen corresponding path program 1 times [2023-12-09 15:05:27,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:05:27,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928670204] [2023-12-09 15:05:27,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:05:27,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:05:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:05:28,204 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 15:05:28,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:05:28,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928670204] [2023-12-09 15:05:28,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928670204] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:05:28,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:05:28,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 15:05:28,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019275222] [2023-12-09 15:05:28,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:05:28,213 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:05:28,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:05:28,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:05:28,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:05:28,245 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 134 [2023-12-09 15:05:28,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 117 transitions, 258 flow. Second operand has 7 states, 7 states have (on average 85.57142857142857) internal successors, (599), 7 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:28,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:05:28,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 134 [2023-12-09 15:05:28,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:05:29,106 INFO L124 PetriNetUnfolderBase]: 3737/5531 cut-off events. [2023-12-09 15:05:29,107 INFO L125 PetriNetUnfolderBase]: For 757/757 co-relation queries the response was YES. [2023-12-09 15:05:29,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10934 conditions, 5531 events. 3737/5531 cut-off events. For 757/757 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 30031 event pairs, 1510 based on Foata normal form. 3/3898 useless extension candidates. Maximal degree in co-relation 8884. Up to 4390 conditions per place. [2023-12-09 15:05:29,149 INFO L140 encePairwiseOnDemand]: 116/134 looper letters, 55 selfloop transitions, 7 changer transitions 7/134 dead transitions. [2023-12-09 15:05:29,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 134 transitions, 451 flow [2023-12-09 15:05:29,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:05:29,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:05:29,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 810 transitions. [2023-12-09 15:05:29,164 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6716417910447762 [2023-12-09 15:05:29,164 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 810 transitions. [2023-12-09 15:05:29,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 810 transitions. [2023-12-09 15:05:29,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:05:29,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 810 transitions. [2023-12-09 15:05:29,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 90.0) internal successors, (810), 9 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:29,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 134.0) internal successors, (1340), 10 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:29,179 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 134.0) internal successors, (1340), 10 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:29,181 INFO L308 CegarLoopForPetriNet]: 120 programPoint places, 8 predicate places. [2023-12-09 15:05:29,181 INFO L500 AbstractCegarLoop]: Abstraction has has 128 places, 134 transitions, 451 flow [2023-12-09 15:05:29,182 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 85.57142857142857) internal successors, (599), 7 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:29,182 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:05:29,182 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] [2023-12-09 15:05:29,182 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:05:29,182 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 2 more)] === [2023-12-09 15:05:29,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:05:29,183 INFO L85 PathProgramCache]: Analyzing trace with hash 627684496, now seen corresponding path program 1 times [2023-12-09 15:05:29,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:05:29,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941333220] [2023-12-09 15:05:29,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:05:29,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:05:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:05:29,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:05:29,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:05:29,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941333220] [2023-12-09 15:05:29,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941333220] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:05:29,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830080958] [2023-12-09 15:05:29,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:05:29,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:05:29,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:05:29,482 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 15:05:29,504 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 15:05:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:05:29,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-09 15:05:29,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:05:29,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:05:29,840 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:05:30,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:05:30,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830080958] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:05:30,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:05:30,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2023-12-09 15:05:30,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750879789] [2023-12-09 15:05:30,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:05:30,009 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-09 15:05:30,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:05:30,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-09 15:05:30,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-09 15:05:30,011 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 134 [2023-12-09 15:05:30,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 134 transitions, 451 flow. Second operand has 14 states, 14 states have (on average 83.5) internal successors, (1169), 14 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:30,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:05:30,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 134 [2023-12-09 15:05:30,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:05:31,222 INFO L124 PetriNetUnfolderBase]: 5430/8375 cut-off events. [2023-12-09 15:05:31,222 INFO L125 PetriNetUnfolderBase]: For 2392/5800 co-relation queries the response was YES. [2023-12-09 15:05:31,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23740 conditions, 8375 events. 5430/8375 cut-off events. For 2392/5800 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 52221 event pairs, 1528 based on Foata normal form. 30/6214 useless extension candidates. Maximal degree in co-relation 18223. Up to 6802 conditions per place. [2023-12-09 15:05:31,290 INFO L140 encePairwiseOnDemand]: 114/134 looper letters, 149 selfloop transitions, 30 changer transitions 9/251 dead transitions. [2023-12-09 15:05:31,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 251 transitions, 1373 flow [2023-12-09 15:05:31,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:05:31,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:05:31,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1774 transitions. [2023-12-09 15:05:31,293 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6619402985074627 [2023-12-09 15:05:31,293 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1774 transitions. [2023-12-09 15:05:31,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1774 transitions. [2023-12-09 15:05:31,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:05:31,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1774 transitions. [2023-12-09 15:05:31,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 88.7) internal successors, (1774), 20 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:31,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 134.0) internal successors, (2814), 21 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:31,302 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 134.0) internal successors, (2814), 21 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:31,302 INFO L308 CegarLoopForPetriNet]: 120 programPoint places, 27 predicate places. [2023-12-09 15:05:31,302 INFO L500 AbstractCegarLoop]: Abstraction has has 147 places, 251 transitions, 1373 flow [2023-12-09 15:05:31,303 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 83.5) internal successors, (1169), 14 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:31,303 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:05:31,303 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] [2023-12-09 15:05:31,333 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 15:05:31,510 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:05:31,511 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 2 more)] === [2023-12-09 15:05:31,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:05:31,512 INFO L85 PathProgramCache]: Analyzing trace with hash 26718712, now seen corresponding path program 2 times [2023-12-09 15:05:31,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:05:31,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121642491] [2023-12-09 15:05:31,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:05:31,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:05:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:05:31,845 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 15:05:31,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:05:31,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121642491] [2023-12-09 15:05:31,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121642491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:05:31,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:05:31,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:05:31,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813760946] [2023-12-09 15:05:31,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:05:31,850 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:05:31,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:05:31,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:05:31,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:05:31,852 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 134 [2023-12-09 15:05:31,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 251 transitions, 1373 flow. Second operand has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:31,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:05:31,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 134 [2023-12-09 15:05:31,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:05:32,510 INFO L124 PetriNetUnfolderBase]: 5483/8434 cut-off events. [2023-12-09 15:05:32,510 INFO L125 PetriNetUnfolderBase]: For 3347/8525 co-relation queries the response was YES. [2023-12-09 15:05:32,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31174 conditions, 8434 events. 5483/8434 cut-off events. For 3347/8525 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 52334 event pairs, 749 based on Foata normal form. 43/6431 useless extension candidates. Maximal degree in co-relation 24050. Up to 6947 conditions per place. [2023-12-09 15:05:32,660 INFO L140 encePairwiseOnDemand]: 122/134 looper letters, 176 selfloop transitions, 13 changer transitions 9/261 dead transitions. [2023-12-09 15:05:32,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 261 transitions, 1835 flow [2023-12-09 15:05:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 15:05:32,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 15:05:32,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 637 transitions. [2023-12-09 15:05:32,662 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6791044776119403 [2023-12-09 15:05:32,662 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 637 transitions. [2023-12-09 15:05:32,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 637 transitions. [2023-12-09 15:05:32,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:05:32,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 637 transitions. [2023-12-09 15:05:32,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:32,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 134.0) internal successors, (1072), 8 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:32,665 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 134.0) internal successors, (1072), 8 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:32,666 INFO L308 CegarLoopForPetriNet]: 120 programPoint places, 33 predicate places. [2023-12-09 15:05:32,666 INFO L500 AbstractCegarLoop]: Abstraction has has 153 places, 261 transitions, 1835 flow [2023-12-09 15:05:32,666 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:32,666 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:05:32,666 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] [2023-12-09 15:05:32,667 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:05:32,667 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 2 more)] === [2023-12-09 15:05:32,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:05:32,667 INFO L85 PathProgramCache]: Analyzing trace with hash 534589270, now seen corresponding path program 1 times [2023-12-09 15:05:32,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:05:32,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040151331] [2023-12-09 15:05:32,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:05:32,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:05:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:05:32,928 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 15:05:32,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:05:32,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040151331] [2023-12-09 15:05:32,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040151331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:05:32,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:05:32,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:05:32,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660077251] [2023-12-09 15:05:32,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:05:32,929 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:05:32,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:05:32,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:05:32,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:05:32,931 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 134 [2023-12-09 15:05:32,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 261 transitions, 1835 flow. Second operand has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:32,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:05:32,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 134 [2023-12-09 15:05:32,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:05:33,923 INFO L124 PetriNetUnfolderBase]: 5391/8503 cut-off events. [2023-12-09 15:05:33,923 INFO L125 PetriNetUnfolderBase]: For 5631/17863 co-relation queries the response was YES. [2023-12-09 15:05:33,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38079 conditions, 8503 events. 5391/8503 cut-off events. For 5631/17863 co-relation queries the response was YES. Maximal size of possible extension queue 489. Compared 54070 event pairs, 1008 based on Foata normal form. 46/6521 useless extension candidates. Maximal degree in co-relation 29395. Up to 6861 conditions per place. [2023-12-09 15:05:34,048 INFO L140 encePairwiseOnDemand]: 122/134 looper letters, 188 selfloop transitions, 25 changer transitions 12/288 dead transitions. [2023-12-09 15:05:34,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 288 transitions, 2516 flow [2023-12-09 15:05:34,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 15:05:34,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 15:05:34,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 639 transitions. [2023-12-09 15:05:34,050 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6812366737739872 [2023-12-09 15:05:34,050 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 639 transitions. [2023-12-09 15:05:34,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 639 transitions. [2023-12-09 15:05:34,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:05:34,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 639 transitions. [2023-12-09 15:05:34,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 91.28571428571429) internal successors, (639), 7 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:34,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 134.0) internal successors, (1072), 8 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:34,053 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 134.0) internal successors, (1072), 8 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:34,053 INFO L308 CegarLoopForPetriNet]: 120 programPoint places, 39 predicate places. [2023-12-09 15:05:34,054 INFO L500 AbstractCegarLoop]: Abstraction has has 159 places, 288 transitions, 2516 flow [2023-12-09 15:05:34,054 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:34,054 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:05:34,054 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] [2023-12-09 15:05:34,054 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:05:34,054 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 2 more)] === [2023-12-09 15:05:34,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:05:34,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1483514680, now seen corresponding path program 1 times [2023-12-09 15:05:34,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:05:34,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841991439] [2023-12-09 15:05:34,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:05:34,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:05:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:05:34,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:05:34,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:05:34,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841991439] [2023-12-09 15:05:34,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841991439] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:05:34,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558679477] [2023-12-09 15:05:34,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:05:34,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:05:34,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:05:34,405 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 15:05:34,406 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 15:05:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:05:34,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-09 15:05:34,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:05:34,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:05:34,801 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:05:34,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:05:34,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558679477] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:05:34,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:05:34,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2023-12-09 15:05:34,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610656157] [2023-12-09 15:05:34,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:05:34,948 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-09 15:05:34,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:05:34,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-09 15:05:34,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-09 15:05:34,950 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 134 [2023-12-09 15:05:34,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 288 transitions, 2516 flow. Second operand has 14 states, 14 states have (on average 84.21428571428571) internal successors, (1179), 14 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:34,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:05:34,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 134 [2023-12-09 15:05:34,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:05:36,684 INFO L124 PetriNetUnfolderBase]: 7171/11708 cut-off events. [2023-12-09 15:05:36,685 INFO L125 PetriNetUnfolderBase]: For 9444/27005 co-relation queries the response was YES. [2023-12-09 15:05:36,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61690 conditions, 11708 events. 7171/11708 cut-off events. For 9444/27005 co-relation queries the response was YES. Maximal size of possible extension queue 710. Compared 83228 event pairs, 319 based on Foata normal form. 79/9491 useless extension candidates. Maximal degree in co-relation 48028. Up to 9491 conditions per place. [2023-12-09 15:05:36,795 INFO L140 encePairwiseOnDemand]: 114/134 looper letters, 498 selfloop transitions, 98 changer transitions 23/682 dead transitions. [2023-12-09 15:05:36,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 682 transitions, 7937 flow [2023-12-09 15:05:36,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:05:36,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:05:36,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1773 transitions. [2023-12-09 15:05:36,805 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6615671641791044 [2023-12-09 15:05:36,805 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1773 transitions. [2023-12-09 15:05:36,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1773 transitions. [2023-12-09 15:05:36,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:05:36,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1773 transitions. [2023-12-09 15:05:36,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 88.65) internal successors, (1773), 20 states have internal predecessors, (1773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:36,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 134.0) internal successors, (2814), 21 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:36,874 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 134.0) internal successors, (2814), 21 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:36,874 INFO L308 CegarLoopForPetriNet]: 120 programPoint places, 58 predicate places. [2023-12-09 15:05:36,874 INFO L500 AbstractCegarLoop]: Abstraction has has 178 places, 682 transitions, 7937 flow [2023-12-09 15:05:36,875 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 84.21428571428571) internal successors, (1179), 14 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:36,875 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:05:36,875 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] [2023-12-09 15:05:36,882 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 15:05:37,075 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:05:37,076 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 2 more)] === [2023-12-09 15:05:37,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:05:37,076 INFO L85 PathProgramCache]: Analyzing trace with hash -2059963792, now seen corresponding path program 2 times [2023-12-09 15:05:37,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:05:37,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915649603] [2023-12-09 15:05:37,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:05:37,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:05:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:05:37,372 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 15:05:37,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:05:37,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915649603] [2023-12-09 15:05:37,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915649603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:05:37,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:05:37,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 15:05:37,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328604825] [2023-12-09 15:05:37,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:05:37,375 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:05:37,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:05:37,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:05:37,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:05:37,376 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 134 [2023-12-09 15:05:37,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 682 transitions, 7937 flow. Second operand has 7 states, 7 states have (on average 84.28571428571429) internal successors, (590), 7 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:37,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:05:37,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 134 [2023-12-09 15:05:37,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:05:39,072 INFO L124 PetriNetUnfolderBase]: 7660/12446 cut-off events. [2023-12-09 15:05:39,072 INFO L125 PetriNetUnfolderBase]: For 11852/39914 co-relation queries the response was YES. [2023-12-09 15:05:39,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76267 conditions, 12446 events. 7660/12446 cut-off events. For 11852/39914 co-relation queries the response was YES. Maximal size of possible extension queue 775. Compared 89538 event pairs, 196 based on Foata normal form. 233/10392 useless extension candidates. Maximal degree in co-relation 59593. Up to 10165 conditions per place. [2023-12-09 15:05:39,182 INFO L140 encePairwiseOnDemand]: 123/134 looper letters, 731 selfloop transitions, 78 changer transitions 23/895 dead transitions. [2023-12-09 15:05:39,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 895 transitions, 12274 flow [2023-12-09 15:05:39,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:05:39,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:05:39,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 731 transitions. [2023-12-09 15:05:39,184 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6819029850746269 [2023-12-09 15:05:39,184 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 731 transitions. [2023-12-09 15:05:39,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 731 transitions. [2023-12-09 15:05:39,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:05:39,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 731 transitions. [2023-12-09 15:05:39,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 91.375) internal successors, (731), 8 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:39,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 134.0) internal successors, (1206), 9 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:39,187 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 134.0) internal successors, (1206), 9 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:39,187 INFO L308 CegarLoopForPetriNet]: 120 programPoint places, 65 predicate places. [2023-12-09 15:05:39,187 INFO L500 AbstractCegarLoop]: Abstraction has has 185 places, 895 transitions, 12274 flow [2023-12-09 15:05:39,188 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.28571428571429) internal successors, (590), 7 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:39,188 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:05:39,188 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] [2023-12-09 15:05:39,188 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:05:39,188 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 2 more)] === [2023-12-09 15:05:39,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:05:39,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1256962666, now seen corresponding path program 1 times [2023-12-09 15:05:39,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:05:39,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806195122] [2023-12-09 15:05:39,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:05:39,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:05:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:05:39,474 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 15:05:39,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:05:39,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806195122] [2023-12-09 15:05:39,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806195122] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:05:39,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:05:39,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 15:05:39,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160173849] [2023-12-09 15:05:39,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:05:39,476 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:05:39,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:05:39,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:05:39,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:05:39,478 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 134 [2023-12-09 15:05:39,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 895 transitions, 12274 flow. Second operand has 7 states, 7 states have (on average 84.28571428571429) internal successors, (590), 7 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:39,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:05:39,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 134 [2023-12-09 15:05:39,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:05:41,301 INFO L124 PetriNetUnfolderBase]: 8062/12861 cut-off events. [2023-12-09 15:05:41,302 INFO L125 PetriNetUnfolderBase]: For 14154/60885 co-relation queries the response was YES. [2023-12-09 15:05:41,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91120 conditions, 12861 events. 8062/12861 cut-off events. For 14154/60885 co-relation queries the response was YES. Maximal size of possible extension queue 746. Compared 90178 event pairs, 87 based on Foata normal form. 197/10796 useless extension candidates. Maximal degree in co-relation 72270. Up to 10732 conditions per place. [2023-12-09 15:05:41,448 INFO L140 encePairwiseOnDemand]: 123/134 looper letters, 970 selfloop transitions, 111 changer transitions 23/1167 dead transitions. [2023-12-09 15:05:41,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 1167 transitions, 18356 flow [2023-12-09 15:05:41,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:05:41,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:05:41,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 731 transitions. [2023-12-09 15:05:41,450 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6819029850746269 [2023-12-09 15:05:41,450 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 731 transitions. [2023-12-09 15:05:41,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 731 transitions. [2023-12-09 15:05:41,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:05:41,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 731 transitions. [2023-12-09 15:05:41,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 91.375) internal successors, (731), 8 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:41,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 134.0) internal successors, (1206), 9 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:41,453 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 134.0) internal successors, (1206), 9 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:41,455 INFO L308 CegarLoopForPetriNet]: 120 programPoint places, 72 predicate places. [2023-12-09 15:05:41,455 INFO L500 AbstractCegarLoop]: Abstraction has has 192 places, 1167 transitions, 18356 flow [2023-12-09 15:05:41,455 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.28571428571429) internal successors, (590), 7 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:05:41,455 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:05:41,455 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] [2023-12-09 15:05:41,455 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:05:41,455 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 2 more)] === [2023-12-09 15:05:41,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:05:41,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1245718081, now seen corresponding path program 1 times [2023-12-09 15:05:41,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:05:41,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136614632] [2023-12-09 15:05:41,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:05:41,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:05:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:05:42,455 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 15:05:42,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:05:42,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136614632] [2023-12-09 15:05:42,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136614632] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:05:42,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136175180] [2023-12-09 15:05:42,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:05:42,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:05:42,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:05:42,473 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 15:05:42,496 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 15:06:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:06:11,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-09 15:06:11,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:08:54,239 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 15:08:54,239 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-09 15:10:06,638 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 15:10:06,654 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:10:06,772 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-12-09 15:10:06,781 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 15:10:06,973 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:10:06,973 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 104 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 32 known predicates. [2023-12-09 15:10:06,975 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-12-09 15:10:06,975 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-12-09 15:10:06,975 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-12-09 15:10:06,975 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-12-09 15:10:06,975 INFO L457 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2023-12-09 15:10:06,978 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:10:06,978 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:10:06,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:10:06 BasicIcfg [2023-12-09 15:10:06,981 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:10:06,981 INFO L158 Benchmark]: Toolchain (without parser) took 280563.08ms. Allocated memory was 239.1MB in the beginning and 4.5GB in the end (delta: 4.2GB). Free memory was 187.4MB in the beginning and 3.4GB in the end (delta: -3.2GB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2023-12-09 15:10:06,981 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 180.4MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:10:06,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.30ms. Allocated memory is still 239.1MB. Free memory was 187.0MB in the beginning and 175.8MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-09 15:10:06,982 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.17ms. Allocated memory is still 239.1MB. Free memory was 175.8MB in the beginning and 174.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:10:06,982 INFO L158 Benchmark]: Boogie Preprocessor took 34.34ms. Allocated memory is still 239.1MB. Free memory was 174.1MB in the beginning and 172.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:10:06,982 INFO L158 Benchmark]: RCFGBuilder took 325.59ms. Allocated memory is still 239.1MB. Free memory was 172.3MB in the beginning and 156.6MB in the end (delta: 15.8MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-09 15:10:06,983 INFO L158 Benchmark]: TraceAbstraction took 279916.46ms. Allocated memory was 239.1MB in the beginning and 4.5GB in the end (delta: 4.2GB). Free memory was 155.9MB in the beginning and 3.4GB in the end (delta: -3.2GB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2023-12-09 15:10:06,991 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 180.4MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 250.30ms. Allocated memory is still 239.1MB. Free memory was 187.0MB in the beginning and 175.8MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.17ms. Allocated memory is still 239.1MB. Free memory was 175.8MB in the beginning and 174.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.34ms. Allocated memory is still 239.1MB. Free memory was 174.1MB in the beginning and 172.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 325.59ms. Allocated memory is still 239.1MB. Free memory was 172.3MB in the beginning and 156.6MB in the end (delta: 15.8MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 279916.46ms. Allocated memory was 239.1MB in the beginning and 4.5GB in the end (delta: 4.2GB). Free memory was 155.9MB in the beginning and 3.4GB in the end (delta: -3.2GB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 104 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 32 known predicates. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 104 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 32 known predicates. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 104 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 32 known predicates. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 104 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 32 known predicates. - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 104 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 32 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 157 locations, 5 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: 279.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 762 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 762 mSDsluCounter, 559 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 378 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1795 IncrementalHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 181 mSDtfsCounter, 1795 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 475 GetRequests, 394 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18356occurred in iteration=7, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 897 NumberOfCodeBlocks, 897 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1086 ConstructedInterpolants, 0 QuantifiedInterpolants, 16469 SizeOfPredicates, 20 NumberOfNonLiveVariables, 566 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 4/10 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