./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16badef15fc63e9ddc5177a1b2c95333295e395a70b18e0490e8c8921933ac0e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:36:08,760 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:36:08,847 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:36:08,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:36:08,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:36:08,884 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:36:08,884 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:36:08,885 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:36:08,886 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:36:08,887 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:36:08,888 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:36:08,888 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:36:08,889 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:36:08,889 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:36:08,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:36:08,892 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:36:08,892 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:36:08,892 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:36:08,892 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:36:08,893 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:36:08,893 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:36:08,897 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:36:08,898 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:36:08,898 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:36:08,898 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:36:08,898 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:36:08,899 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:36:08,899 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:36:08,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:36:08,899 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:36:08,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:36:08,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:36:08,900 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:36:08,900 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:36:08,901 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:36:08,901 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:36:08,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:36:08,901 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:36:08,901 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:36:08,902 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:36:08,902 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:36:08,904 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16badef15fc63e9ddc5177a1b2c95333295e395a70b18e0490e8c8921933ac0e [2024-10-24 15:36:09,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:36:09,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:36:09,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:36:09,220 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:36:09,220 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:36:09,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i [2024-10-24 15:36:10,787 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:36:11,028 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:36:11,032 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i [2024-10-24 15:36:11,053 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1904e0236/e37158fe750346bfb5a4c01c829e675a/FLAGa346fb576 [2024-10-24 15:36:11,069 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1904e0236/e37158fe750346bfb5a4c01c829e675a [2024-10-24 15:36:11,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:36:11,073 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:36:11,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:36:11,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:36:11,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:36:11,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:36:11" (1/1) ... [2024-10-24 15:36:11,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6abad8f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:36:11, skipping insertion in model container [2024-10-24 15:36:11,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:36:11" (1/1) ... [2024-10-24 15:36:11,135 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:36:11,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:36:11,623 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:36:11,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:36:11,793 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:36:11,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:36:11 WrapperNode [2024-10-24 15:36:11,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:36:11,798 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:36:11,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:36:11,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:36:11,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:36:11" (1/1) ... [2024-10-24 15:36:11,837 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:36:11" (1/1) ... [2024-10-24 15:36:11,868 INFO L138 Inliner]: procedures = 261, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-10-24 15:36:11,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:36:11,871 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:36:11,872 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:36:11,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:36:11,882 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:36:11" (1/1) ... [2024-10-24 15:36:11,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:36:11" (1/1) ... [2024-10-24 15:36:11,888 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:36:11" (1/1) ... [2024-10-24 15:36:11,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:36:11" (1/1) ... [2024-10-24 15:36:11,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:36:11" (1/1) ... [2024-10-24 15:36:11,910 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:36:11" (1/1) ... [2024-10-24 15:36:11,914 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:36:11" (1/1) ... [2024-10-24 15:36:11,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:36:11" (1/1) ... [2024-10-24 15:36:11,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:36:11,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:36:11,925 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:36:11,925 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:36:11,926 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:36:11" (1/1) ... [2024-10-24 15:36:11,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:36:11,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:36:11,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:36:11,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:36:12,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 15:36:12,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:36:12,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:36:12,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 15:36:12,011 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-24 15:36:12,011 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-24 15:36:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:36:12,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:36:12,014 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:36:12,135 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:36:12,137 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:36:12,379 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:36:12,379 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:36:12,398 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:36:12,399 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-24 15:36:12,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:36:12 BoogieIcfgContainer [2024-10-24 15:36:12,400 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:36:12,402 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:36:12,403 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:36:12,407 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:36:12,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:36:11" (1/3) ... [2024-10-24 15:36:12,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dca41ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:36:12, skipping insertion in model container [2024-10-24 15:36:12,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:36:11" (2/3) ... [2024-10-24 15:36:12,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dca41ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:36:12, skipping insertion in model container [2024-10-24 15:36:12,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:36:12" (3/3) ... [2024-10-24 15:36:12,410 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-array-init.i [2024-10-24 15:36:12,432 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:36:12,432 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-24 15:36:12,432 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:36:12,501 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 15:36:12,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 90 transitions, 187 flow [2024-10-24 15:36:12,623 INFO L124 PetriNetUnfolderBase]: 6/131 cut-off events. [2024-10-24 15:36:12,623 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:36:12,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 131 events. 6/131 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 189 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 64. Up to 4 conditions per place. [2024-10-24 15:36:12,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 90 transitions, 187 flow [2024-10-24 15:36:12,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 90 transitions, 187 flow [2024-10-24 15:36:12,647 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:36:12,654 INFO L333 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, 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;@76a2d816, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:36:12,655 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-24 15:36:12,666 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:36:12,666 INFO L124 PetriNetUnfolderBase]: 3/43 cut-off events. [2024-10-24 15:36:12,666 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:36:12,669 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:12,670 INFO L204 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] [2024-10-24 15:36:12,671 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:12,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:12,677 INFO L85 PathProgramCache]: Analyzing trace with hash 2036736685, now seen corresponding path program 1 times [2024-10-24 15:36:12,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:12,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930223877] [2024-10-24 15:36:12,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:12,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:13,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:13,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:13,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930223877] [2024-10-24 15:36:13,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930223877] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:13,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:36:13,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:36:13,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061141244] [2024-10-24 15:36:13,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:13,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:36:13,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:13,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:36:13,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:36:13,892 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 90 [2024-10-24 15:36:13,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 90 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:13,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:13,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 90 [2024-10-24 15:36:13,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:14,239 INFO L124 PetriNetUnfolderBase]: 91/418 cut-off events. [2024-10-24 15:36:14,239 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 15:36:14,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 654 conditions, 418 events. 91/418 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2003 event pairs, 52 based on Foata normal form. 13/395 useless extension candidates. Maximal degree in co-relation 559. Up to 197 conditions per place. [2024-10-24 15:36:14,246 INFO L140 encePairwiseOnDemand]: 76/90 looper letters, 27 selfloop transitions, 22 changer transitions 1/108 dead transitions. [2024-10-24 15:36:14,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 108 transitions, 321 flow [2024-10-24 15:36:14,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:36:14,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:36:14,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 407 transitions. [2024-10-24 15:36:14,264 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7537037037037037 [2024-10-24 15:36:14,267 INFO L175 Difference]: Start difference. First operand has 89 places, 90 transitions, 187 flow. Second operand 6 states and 407 transitions. [2024-10-24 15:36:14,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 108 transitions, 321 flow [2024-10-24 15:36:14,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 108 transitions, 321 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:36:14,280 INFO L231 Difference]: Finished difference. Result has 99 places, 107 transitions, 329 flow [2024-10-24 15:36:14,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=329, PETRI_PLACES=99, PETRI_TRANSITIONS=107} [2024-10-24 15:36:14,287 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 10 predicate places. [2024-10-24 15:36:14,289 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 107 transitions, 329 flow [2024-10-24 15:36:14,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:14,290 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:14,290 INFO L204 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] [2024-10-24 15:36:14,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:36:14,290 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:14,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:14,291 INFO L85 PathProgramCache]: Analyzing trace with hash 460665484, now seen corresponding path program 1 times [2024-10-24 15:36:14,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:14,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640741989] [2024-10-24 15:36:14,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:14,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:14,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:14,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:14,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640741989] [2024-10-24 15:36:14,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640741989] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:14,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:36:14,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:36:14,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036872469] [2024-10-24 15:36:14,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:14,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 15:36:14,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:14,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 15:36:14,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:36:14,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 90 [2024-10-24 15:36:14,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 107 transitions, 329 flow. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:14,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:14,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 90 [2024-10-24 15:36:14,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:14,616 INFO L124 PetriNetUnfolderBase]: 40/253 cut-off events. [2024-10-24 15:36:14,616 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-10-24 15:36:14,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 253 events. 40/253 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 835 event pairs, 4 based on Foata normal form. 1/239 useless extension candidates. Maximal degree in co-relation 333. Up to 50 conditions per place. [2024-10-24 15:36:14,621 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 11 selfloop transitions, 2 changer transitions 5/112 dead transitions. [2024-10-24 15:36:14,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 112 transitions, 375 flow [2024-10-24 15:36:14,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:36:14,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:36:14,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 463 transitions. [2024-10-24 15:36:14,626 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8574074074074074 [2024-10-24 15:36:14,626 INFO L175 Difference]: Start difference. First operand has 99 places, 107 transitions, 329 flow. Second operand 6 states and 463 transitions. [2024-10-24 15:36:14,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 112 transitions, 375 flow [2024-10-24 15:36:14,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 112 transitions, 375 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:36:14,631 INFO L231 Difference]: Finished difference. Result has 107 places, 107 transitions, 347 flow [2024-10-24 15:36:14,631 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=347, PETRI_PLACES=107, PETRI_TRANSITIONS=107} [2024-10-24 15:36:14,632 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 18 predicate places. [2024-10-24 15:36:14,632 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 107 transitions, 347 flow [2024-10-24 15:36:14,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:14,633 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:14,633 INFO L204 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] [2024-10-24 15:36:14,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:36:14,633 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:14,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:14,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1788191437, now seen corresponding path program 1 times [2024-10-24 15:36:14,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:14,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277119506] [2024-10-24 15:36:14,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:14,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:15,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:15,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:15,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277119506] [2024-10-24 15:36:15,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277119506] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:15,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:36:15,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:36:15,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215956497] [2024-10-24 15:36:15,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:15,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:36:15,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:15,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:36:15,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:36:15,187 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 90 [2024-10-24 15:36:15,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 107 transitions, 347 flow. Second operand has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:15,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:15,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 90 [2024-10-24 15:36:15,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:15,289 INFO L124 PetriNetUnfolderBase]: 109/469 cut-off events. [2024-10-24 15:36:15,289 INFO L125 PetriNetUnfolderBase]: For 99/102 co-relation queries the response was YES. [2024-10-24 15:36:15,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1003 conditions, 469 events. 109/469 cut-off events. For 99/102 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2282 event pairs, 36 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 886. Up to 225 conditions per place. [2024-10-24 15:36:15,294 INFO L140 encePairwiseOnDemand]: 79/90 looper letters, 46 selfloop transitions, 22 changer transitions 0/128 dead transitions. [2024-10-24 15:36:15,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 128 transitions, 557 flow [2024-10-24 15:36:15,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:36:15,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:36:15,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 404 transitions. [2024-10-24 15:36:15,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7481481481481481 [2024-10-24 15:36:15,299 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 347 flow. Second operand 6 states and 404 transitions. [2024-10-24 15:36:15,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 128 transitions, 557 flow [2024-10-24 15:36:15,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 128 transitions, 543 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-10-24 15:36:15,307 INFO L231 Difference]: Finished difference. Result has 109 places, 128 transitions, 515 flow [2024-10-24 15:36:15,310 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=515, PETRI_PLACES=109, PETRI_TRANSITIONS=128} [2024-10-24 15:36:15,311 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 20 predicate places. [2024-10-24 15:36:15,311 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 128 transitions, 515 flow [2024-10-24 15:36:15,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:15,311 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:15,311 INFO L204 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] [2024-10-24 15:36:15,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:36:15,312 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:15,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:15,313 INFO L85 PathProgramCache]: Analyzing trace with hash 628878030, now seen corresponding path program 1 times [2024-10-24 15:36:15,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:15,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855521624] [2024-10-24 15:36:15,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:15,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:15,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:15,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:15,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855521624] [2024-10-24 15:36:15,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855521624] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:15,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:36:15,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:36:15,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960025025] [2024-10-24 15:36:15,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:15,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:36:15,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:15,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:36:15,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:36:15,836 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 90 [2024-10-24 15:36:15,837 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 128 transitions, 515 flow. Second operand has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:15,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:15,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 90 [2024-10-24 15:36:15,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:16,029 INFO L124 PetriNetUnfolderBase]: 140/585 cut-off events. [2024-10-24 15:36:16,029 INFO L125 PetriNetUnfolderBase]: For 340/365 co-relation queries the response was YES. [2024-10-24 15:36:16,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1500 conditions, 585 events. 140/585 cut-off events. For 340/365 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3035 event pairs, 14 based on Foata normal form. 4/562 useless extension candidates. Maximal degree in co-relation 1382. Up to 232 conditions per place. [2024-10-24 15:36:16,034 INFO L140 encePairwiseOnDemand]: 76/90 looper letters, 46 selfloop transitions, 57 changer transitions 8/176 dead transitions. [2024-10-24 15:36:16,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 176 transitions, 963 flow [2024-10-24 15:36:16,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:36:16,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:36:16,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 474 transitions. [2024-10-24 15:36:16,036 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8777777777777778 [2024-10-24 15:36:16,037 INFO L175 Difference]: Start difference. First operand has 109 places, 128 transitions, 515 flow. Second operand 6 states and 474 transitions. [2024-10-24 15:36:16,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 176 transitions, 963 flow [2024-10-24 15:36:16,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 176 transitions, 925 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-10-24 15:36:16,044 INFO L231 Difference]: Finished difference. Result has 119 places, 168 transitions, 981 flow [2024-10-24 15:36:16,044 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=981, PETRI_PLACES=119, PETRI_TRANSITIONS=168} [2024-10-24 15:36:16,045 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 30 predicate places. [2024-10-24 15:36:16,046 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 168 transitions, 981 flow [2024-10-24 15:36:16,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:16,046 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:16,046 INFO L204 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] [2024-10-24 15:36:16,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:36:16,047 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:16,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:16,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1921327265, now seen corresponding path program 1 times [2024-10-24 15:36:16,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:16,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852539610] [2024-10-24 15:36:16,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:16,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 15:36:16,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:16,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852539610] [2024-10-24 15:36:16,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852539610] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:16,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:36:16,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:36:16,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331357424] [2024-10-24 15:36:16,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:16,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:36:16,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:16,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:36:16,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:36:16,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 90 [2024-10-24 15:36:16,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 168 transitions, 981 flow. Second operand has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:16,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:16,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 90 [2024-10-24 15:36:16,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:16,660 INFO L124 PetriNetUnfolderBase]: 125/536 cut-off events. [2024-10-24 15:36:16,660 INFO L125 PetriNetUnfolderBase]: For 639/656 co-relation queries the response was YES. [2024-10-24 15:36:16,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1631 conditions, 536 events. 125/536 cut-off events. For 639/656 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2786 event pairs, 6 based on Foata normal form. 0/536 useless extension candidates. Maximal degree in co-relation 1501. Up to 135 conditions per place. [2024-10-24 15:36:16,665 INFO L140 encePairwiseOnDemand]: 84/90 looper letters, 55 selfloop transitions, 0 changer transitions 15/167 dead transitions. [2024-10-24 15:36:16,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 167 transitions, 1105 flow [2024-10-24 15:36:16,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:36:16,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:36:16,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 410 transitions. [2024-10-24 15:36:16,667 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7592592592592593 [2024-10-24 15:36:16,667 INFO L175 Difference]: Start difference. First operand has 119 places, 168 transitions, 981 flow. Second operand 6 states and 410 transitions. [2024-10-24 15:36:16,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 167 transitions, 1105 flow [2024-10-24 15:36:16,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 167 transitions, 1069 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-10-24 15:36:16,678 INFO L231 Difference]: Finished difference. Result has 115 places, 152 transitions, 908 flow [2024-10-24 15:36:16,679 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=943, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=908, PETRI_PLACES=115, PETRI_TRANSITIONS=152} [2024-10-24 15:36:16,679 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 26 predicate places. [2024-10-24 15:36:16,680 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 152 transitions, 908 flow [2024-10-24 15:36:16,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:16,680 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:16,680 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:36:16,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 15:36:16,681 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:16,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:16,681 INFO L85 PathProgramCache]: Analyzing trace with hash 707737008, now seen corresponding path program 1 times [2024-10-24 15:36:16,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:16,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49104987] [2024-10-24 15:36:16,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:16,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:17,633 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:17,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:17,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49104987] [2024-10-24 15:36:17,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49104987] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:36:17,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66365064] [2024-10-24 15:36:17,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:17,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:36:17,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:36:17,637 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) [2024-10-24 15:36:17,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 15:36:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:17,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-24 15:36:17,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:36:17,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-24 15:36:18,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-24 15:36:18,072 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:36:18,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-24 15:36:18,134 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:36:18,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-24 15:36:18,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:18,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:18,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:18,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:18,231 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:36:18,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-24 15:36:18,243 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:18,243 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:36:18,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66365064] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:18,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:36:18,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-24 15:36:18,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740366650] [2024-10-24 15:36:18,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:18,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:36:18,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:18,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:36:18,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-10-24 15:36:18,714 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-24 15:36:18,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 152 transitions, 908 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:18,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:18,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-24 15:36:18,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:19,342 INFO L124 PetriNetUnfolderBase]: 256/858 cut-off events. [2024-10-24 15:36:19,343 INFO L125 PetriNetUnfolderBase]: For 1056/1071 co-relation queries the response was YES. [2024-10-24 15:36:19,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2941 conditions, 858 events. 256/858 cut-off events. For 1056/1071 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4920 event pairs, 12 based on Foata normal form. 9/863 useless extension candidates. Maximal degree in co-relation 2921. Up to 297 conditions per place. [2024-10-24 15:36:19,352 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 165 selfloop transitions, 64 changer transitions 0/269 dead transitions. [2024-10-24 15:36:19,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 269 transitions, 2226 flow [2024-10-24 15:36:19,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 15:36:19,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-24 15:36:19,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 929 transitions. [2024-10-24 15:36:19,355 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6881481481481482 [2024-10-24 15:36:19,356 INFO L175 Difference]: Start difference. First operand has 115 places, 152 transitions, 908 flow. Second operand 15 states and 929 transitions. [2024-10-24 15:36:19,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 269 transitions, 2226 flow [2024-10-24 15:36:19,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 269 transitions, 2224 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:36:19,370 INFO L231 Difference]: Finished difference. Result has 119 places, 198 transitions, 1533 flow [2024-10-24 15:36:19,371 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1533, PETRI_PLACES=119, PETRI_TRANSITIONS=198} [2024-10-24 15:36:19,371 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 30 predicate places. [2024-10-24 15:36:19,372 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 198 transitions, 1533 flow [2024-10-24 15:36:19,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:19,372 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:19,373 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:36:19,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 15:36:19,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-24 15:36:19,577 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:19,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:19,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1200885021, now seen corresponding path program 1 times [2024-10-24 15:36:19,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:19,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152290457] [2024-10-24 15:36:19,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:19,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:20,331 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:20,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:20,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152290457] [2024-10-24 15:36:20,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152290457] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:36:20,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344468811] [2024-10-24 15:36:20,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:20,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:36:20,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:36:20,334 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) [2024-10-24 15:36:20,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 15:36:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:20,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-24 15:36:20,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:36:20,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 15:36:20,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-24 15:36:20,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-10-24 15:36:20,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-10-24 15:36:20,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:20,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:20,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:20,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:20,912 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:36:20,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-10-24 15:36:20,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:20,925 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:36:20,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344468811] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:20,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:36:20,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-24 15:36:20,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653514670] [2024-10-24 15:36:20,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:20,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:36:20,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:20,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:36:20,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2024-10-24 15:36:21,490 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-10-24 15:36:21,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 198 transitions, 1533 flow. Second operand has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:21,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:21,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-10-24 15:36:21,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:21,985 INFO L124 PetriNetUnfolderBase]: 256/954 cut-off events. [2024-10-24 15:36:21,985 INFO L125 PetriNetUnfolderBase]: For 1830/1868 co-relation queries the response was YES. [2024-10-24 15:36:21,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3597 conditions, 954 events. 256/954 cut-off events. For 1830/1868 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5998 event pairs, 16 based on Foata normal form. 7/960 useless extension candidates. Maximal degree in co-relation 3568. Up to 445 conditions per place. [2024-10-24 15:36:21,996 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 158 selfloop transitions, 43 changer transitions 0/254 dead transitions. [2024-10-24 15:36:21,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 254 transitions, 2355 flow [2024-10-24 15:36:21,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 15:36:21,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-24 15:36:21,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 986 transitions. [2024-10-24 15:36:21,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7303703703703703 [2024-10-24 15:36:21,999 INFO L175 Difference]: Start difference. First operand has 119 places, 198 transitions, 1533 flow. Second operand 15 states and 986 transitions. [2024-10-24 15:36:21,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 254 transitions, 2355 flow [2024-10-24 15:36:22,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 254 transitions, 2310 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-24 15:36:22,023 INFO L231 Difference]: Finished difference. Result has 140 places, 236 transitions, 2020 flow [2024-10-24 15:36:22,023 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=1516, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2020, PETRI_PLACES=140, PETRI_TRANSITIONS=236} [2024-10-24 15:36:22,024 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 51 predicate places. [2024-10-24 15:36:22,024 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 236 transitions, 2020 flow [2024-10-24 15:36:22,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:22,025 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:22,025 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:36:22,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 15:36:22,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-24 15:36:22,226 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:22,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:22,227 INFO L85 PathProgramCache]: Analyzing trace with hash 35174206, now seen corresponding path program 2 times [2024-10-24 15:36:22,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:22,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776565496] [2024-10-24 15:36:22,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:22,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:23,064 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:23,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:23,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776565496] [2024-10-24 15:36:23,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776565496] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:36:23,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433865262] [2024-10-24 15:36:23,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:36:23,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:36:23,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:36:23,070 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) [2024-10-24 15:36:23,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 15:36:23,176 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 15:36:23,176 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:36:23,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-24 15:36:23,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:36:23,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-24 15:36:23,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-24 15:36:23,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-24 15:36:23,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-24 15:36:23,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:23,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:23,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:23,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:23,555 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:36:23,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-24 15:36:23,566 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:23,566 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:36:23,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433865262] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:23,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:36:23,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-24 15:36:23,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072992573] [2024-10-24 15:36:23,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:23,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:36:23,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:23,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:36:23,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-10-24 15:36:23,993 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-24 15:36:23,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 236 transitions, 2020 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:23,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:23,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-24 15:36:23,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:24,542 INFO L124 PetriNetUnfolderBase]: 408/1477 cut-off events. [2024-10-24 15:36:24,542 INFO L125 PetriNetUnfolderBase]: For 4016/4054 co-relation queries the response was YES. [2024-10-24 15:36:24,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6153 conditions, 1477 events. 408/1477 cut-off events. For 4016/4054 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 10677 event pairs, 30 based on Foata normal form. 11/1482 useless extension candidates. Maximal degree in co-relation 6114. Up to 497 conditions per place. [2024-10-24 15:36:24,559 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 267 selfloop transitions, 81 changer transitions 0/391 dead transitions. [2024-10-24 15:36:24,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 391 transitions, 4244 flow [2024-10-24 15:36:24,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 15:36:24,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-24 15:36:24,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 799 transitions. [2024-10-24 15:36:24,562 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6829059829059829 [2024-10-24 15:36:24,562 INFO L175 Difference]: Start difference. First operand has 140 places, 236 transitions, 2020 flow. Second operand 13 states and 799 transitions. [2024-10-24 15:36:24,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 391 transitions, 4244 flow [2024-10-24 15:36:24,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 391 transitions, 4208 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-10-24 15:36:24,609 INFO L231 Difference]: Finished difference. Result has 161 places, 285 transitions, 2906 flow [2024-10-24 15:36:24,609 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=1998, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2906, PETRI_PLACES=161, PETRI_TRANSITIONS=285} [2024-10-24 15:36:24,610 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 72 predicate places. [2024-10-24 15:36:24,610 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 285 transitions, 2906 flow [2024-10-24 15:36:24,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:24,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:24,611 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:36:24,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 15:36:24,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:36:24,812 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:24,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:24,813 INFO L85 PathProgramCache]: Analyzing trace with hash 808741728, now seen corresponding path program 3 times [2024-10-24 15:36:24,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:24,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024115994] [2024-10-24 15:36:24,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:24,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:25,547 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:25,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:25,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024115994] [2024-10-24 15:36:25,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024115994] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:36:25,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755257404] [2024-10-24 15:36:25,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 15:36:25,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:36:25,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:36:25,550 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:36:25,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 15:36:25,656 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 15:36:25,657 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:36:25,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-24 15:36:25,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:36:25,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-24 15:36:25,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-24 15:36:25,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-24 15:36:25,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-24 15:36:26,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:26,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:26,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:26,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:26,027 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:36:26,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-24 15:36:26,036 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:26,036 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:36:26,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755257404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:26,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:36:26,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-24 15:36:26,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404778762] [2024-10-24 15:36:26,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:26,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:36:26,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:26,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:36:26,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-10-24 15:36:26,549 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-24 15:36:26,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 285 transitions, 2906 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:26,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:26,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-24 15:36:26,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:27,366 INFO L124 PetriNetUnfolderBase]: 555/1991 cut-off events. [2024-10-24 15:36:27,366 INFO L125 PetriNetUnfolderBase]: For 7089/7151 co-relation queries the response was YES. [2024-10-24 15:36:27,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8956 conditions, 1991 events. 555/1991 cut-off events. For 7089/7151 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 15727 event pairs, 35 based on Foata normal form. 12/1995 useless extension candidates. Maximal degree in co-relation 8908. Up to 788 conditions per place. [2024-10-24 15:36:27,393 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 336 selfloop transitions, 87 changer transitions 0/466 dead transitions. [2024-10-24 15:36:27,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 466 transitions, 5653 flow [2024-10-24 15:36:27,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 15:36:27,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-24 15:36:27,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 865 transitions. [2024-10-24 15:36:27,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6865079365079365 [2024-10-24 15:36:27,397 INFO L175 Difference]: Start difference. First operand has 161 places, 285 transitions, 2906 flow. Second operand 14 states and 865 transitions. [2024-10-24 15:36:27,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 466 transitions, 5653 flow [2024-10-24 15:36:27,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 466 transitions, 5590 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-10-24 15:36:27,477 INFO L231 Difference]: Finished difference. Result has 182 places, 338 transitions, 3947 flow [2024-10-24 15:36:27,478 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=2854, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3947, PETRI_PLACES=182, PETRI_TRANSITIONS=338} [2024-10-24 15:36:27,482 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 93 predicate places. [2024-10-24 15:36:27,483 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 338 transitions, 3947 flow [2024-10-24 15:36:27,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:27,484 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:27,484 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:36:27,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-24 15:36:27,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:36:27,685 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:27,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:27,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1876887687, now seen corresponding path program 2 times [2024-10-24 15:36:27,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:27,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499681015] [2024-10-24 15:36:27,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:27,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:28,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:28,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:28,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499681015] [2024-10-24 15:36:28,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499681015] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:36:28,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728993399] [2024-10-24 15:36:28,268 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:36:28,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:36:28,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:36:28,270 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:36:28,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 15:36:28,369 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 15:36:28,369 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:36:28,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-24 15:36:28,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:36:28,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 15:36:28,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-24 15:36:28,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-10-24 15:36:28,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-10-24 15:36:28,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:28,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:28,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:28,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:28,830 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:36:28,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-10-24 15:36:28,847 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:28,847 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:36:28,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728993399] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:28,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:36:28,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-24 15:36:28,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948464223] [2024-10-24 15:36:28,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:28,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:36:28,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:28,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:36:28,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-10-24 15:36:29,389 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-10-24 15:36:29,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 338 transitions, 3947 flow. Second operand has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:29,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:29,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-10-24 15:36:29,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:30,377 INFO L124 PetriNetUnfolderBase]: 596/2305 cut-off events. [2024-10-24 15:36:30,378 INFO L125 PetriNetUnfolderBase]: For 10036/10164 co-relation queries the response was YES. [2024-10-24 15:36:30,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10686 conditions, 2305 events. 596/2305 cut-off events. For 10036/10164 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 19556 event pairs, 43 based on Foata normal form. 27/2329 useless extension candidates. Maximal degree in co-relation 10627. Up to 1005 conditions per place. [2024-10-24 15:36:30,410 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 260 selfloop transitions, 100 changer transitions 0/421 dead transitions. [2024-10-24 15:36:30,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 421 transitions, 5629 flow [2024-10-24 15:36:30,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 15:36:30,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-24 15:36:30,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1377 transitions. [2024-10-24 15:36:30,418 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7285714285714285 [2024-10-24 15:36:30,418 INFO L175 Difference]: Start difference. First operand has 182 places, 338 transitions, 3947 flow. Second operand 21 states and 1377 transitions. [2024-10-24 15:36:30,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 421 transitions, 5629 flow [2024-10-24 15:36:30,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 421 transitions, 5502 flow, removed 61 selfloop flow, removed 2 redundant places. [2024-10-24 15:36:30,492 INFO L231 Difference]: Finished difference. Result has 205 places, 377 transitions, 4683 flow [2024-10-24 15:36:30,493 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=3824, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4683, PETRI_PLACES=205, PETRI_TRANSITIONS=377} [2024-10-24 15:36:30,493 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 116 predicate places. [2024-10-24 15:36:30,493 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 377 transitions, 4683 flow [2024-10-24 15:36:30,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:30,494 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:30,494 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:36:30,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-24 15:36:30,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-24 15:36:30,695 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:30,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:30,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1204398042, now seen corresponding path program 4 times [2024-10-24 15:36:30,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:30,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247253622] [2024-10-24 15:36:30,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:30,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:31,327 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:31,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:31,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247253622] [2024-10-24 15:36:31,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247253622] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:36:31,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819138974] [2024-10-24 15:36:31,328 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 15:36:31,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:36:31,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:36:31,330 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:36:31,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 15:36:31,429 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 15:36:31,429 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:36:31,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-24 15:36:31,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:36:31,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-24 15:36:31,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-24 15:36:31,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-24 15:36:31,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-24 15:36:31,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:31,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:31,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:31,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:31,791 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:36:31,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-24 15:36:31,800 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:31,801 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:36:31,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819138974] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:31,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:36:31,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-24 15:36:31,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334948632] [2024-10-24 15:36:31,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:31,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:36:31,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:31,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:36:31,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-10-24 15:36:32,269 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-24 15:36:32,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 377 transitions, 4683 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:32,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:32,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-24 15:36:32,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:33,374 INFO L124 PetriNetUnfolderBase]: 878/3316 cut-off events. [2024-10-24 15:36:33,374 INFO L125 PetriNetUnfolderBase]: For 15240/15342 co-relation queries the response was YES. [2024-10-24 15:36:33,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16135 conditions, 3316 events. 878/3316 cut-off events. For 15240/15342 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 30830 event pairs, 88 based on Foata normal form. 17/3318 useless extension candidates. Maximal degree in co-relation 16072. Up to 768 conditions per place. [2024-10-24 15:36:33,421 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 486 selfloop transitions, 127 changer transitions 0/659 dead transitions. [2024-10-24 15:36:33,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 659 transitions, 9268 flow [2024-10-24 15:36:33,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 15:36:33,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-24 15:36:33,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1057 transitions. [2024-10-24 15:36:33,425 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6908496732026144 [2024-10-24 15:36:33,425 INFO L175 Difference]: Start difference. First operand has 205 places, 377 transitions, 4683 flow. Second operand 17 states and 1057 transitions. [2024-10-24 15:36:33,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 659 transitions, 9268 flow [2024-10-24 15:36:33,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 659 transitions, 9160 flow, removed 23 selfloop flow, removed 7 redundant places. [2024-10-24 15:36:33,636 INFO L231 Difference]: Finished difference. Result has 222 places, 435 transitions, 6015 flow [2024-10-24 15:36:33,636 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=4614, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=6015, PETRI_PLACES=222, PETRI_TRANSITIONS=435} [2024-10-24 15:36:33,637 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 133 predicate places. [2024-10-24 15:36:33,637 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 435 transitions, 6015 flow [2024-10-24 15:36:33,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:33,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:33,638 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:36:33,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 15:36:33,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:36:33,839 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:33,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:33,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1681440684, now seen corresponding path program 5 times [2024-10-24 15:36:33,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:33,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824998716] [2024-10-24 15:36:33,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:33,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:34,522 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:34,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:34,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824998716] [2024-10-24 15:36:34,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824998716] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:36:34,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643627942] [2024-10-24 15:36:34,523 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 15:36:34,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:36:34,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:36:34,525 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:36:34,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 15:36:34,635 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 15:36:34,635 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:36:34,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-24 15:36:34,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:36:34,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-24 15:36:34,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-24 15:36:34,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-24 15:36:34,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-24 15:36:35,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:35,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:35,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:35,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:35,077 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:36:35,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-24 15:36:35,087 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:35,087 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:36:35,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643627942] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:35,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:36:35,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-24 15:36:35,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910235465] [2024-10-24 15:36:35,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:35,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:36:35,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:35,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:36:35,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-10-24 15:36:35,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-24 15:36:35,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 435 transitions, 6015 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:35,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:35,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-24 15:36:35,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:36,759 INFO L124 PetriNetUnfolderBase]: 1063/3932 cut-off events. [2024-10-24 15:36:36,760 INFO L125 PetriNetUnfolderBase]: For 21592/21715 co-relation queries the response was YES. [2024-10-24 15:36:36,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20012 conditions, 3932 events. 1063/3932 cut-off events. For 21592/21715 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 37876 event pairs, 81 based on Foata normal form. 18/3935 useless extension candidates. Maximal degree in co-relation 19941. Up to 1457 conditions per place. [2024-10-24 15:36:36,818 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 536 selfloop transitions, 134 changer transitions 0/716 dead transitions. [2024-10-24 15:36:36,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 716 transitions, 10691 flow [2024-10-24 15:36:36,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 15:36:36,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-24 15:36:36,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1006 transitions. [2024-10-24 15:36:36,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6986111111111111 [2024-10-24 15:36:36,821 INFO L175 Difference]: Start difference. First operand has 222 places, 435 transitions, 6015 flow. Second operand 16 states and 1006 transitions. [2024-10-24 15:36:36,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 716 transitions, 10691 flow [2024-10-24 15:36:37,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 716 transitions, 10485 flow, removed 96 selfloop flow, removed 2 redundant places. [2024-10-24 15:36:37,031 INFO L231 Difference]: Finished difference. Result has 244 places, 485 transitions, 7210 flow [2024-10-24 15:36:37,032 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=5811, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7210, PETRI_PLACES=244, PETRI_TRANSITIONS=485} [2024-10-24 15:36:37,032 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 155 predicate places. [2024-10-24 15:36:37,032 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 485 transitions, 7210 flow [2024-10-24 15:36:37,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:37,033 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:37,033 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:36:37,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-24 15:36:37,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:36:37,234 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:37,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:37,234 INFO L85 PathProgramCache]: Analyzing trace with hash -208675799, now seen corresponding path program 3 times [2024-10-24 15:36:37,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:37,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452853697] [2024-10-24 15:36:37,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:37,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:37,776 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:37,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:37,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452853697] [2024-10-24 15:36:37,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452853697] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:36:37,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502600156] [2024-10-24 15:36:37,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 15:36:37,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:36:37,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:36:37,779 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:36:37,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 15:36:37,878 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 15:36:37,878 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:36:37,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-24 15:36:37,882 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:36:37,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 15:36:37,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-24 15:36:38,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-10-24 15:36:38,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-10-24 15:36:38,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:38,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:38,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:38,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:38,196 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:36:38,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-10-24 15:36:38,206 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:38,206 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:36:38,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502600156] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:38,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:36:38,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-24 15:36:38,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978797474] [2024-10-24 15:36:38,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:38,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:36:38,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:38,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:36:38,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-10-24 15:36:38,686 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-10-24 15:36:38,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 485 transitions, 7210 flow. Second operand has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:38,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:38,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-10-24 15:36:38,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:40,040 INFO L124 PetriNetUnfolderBase]: 1129/4377 cut-off events. [2024-10-24 15:36:40,041 INFO L125 PetriNetUnfolderBase]: For 28552/28850 co-relation queries the response was YES. [2024-10-24 15:36:40,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22870 conditions, 4377 events. 1129/4377 cut-off events. For 28552/28850 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 44078 event pairs, 92 based on Foata normal form. 62/4426 useless extension candidates. Maximal degree in co-relation 22790. Up to 1905 conditions per place. [2024-10-24 15:36:40,099 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 368 selfloop transitions, 191 changer transitions 0/635 dead transitions. [2024-10-24 15:36:40,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 635 transitions, 10411 flow [2024-10-24 15:36:40,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-24 15:36:40,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-10-24 15:36:40,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1514 transitions. [2024-10-24 15:36:40,102 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7314009661835749 [2024-10-24 15:36:40,103 INFO L175 Difference]: Start difference. First operand has 244 places, 485 transitions, 7210 flow. Second operand 23 states and 1514 transitions. [2024-10-24 15:36:40,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 635 transitions, 10411 flow [2024-10-24 15:36:40,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 635 transitions, 10121 flow, removed 125 selfloop flow, removed 3 redundant places. [2024-10-24 15:36:40,517 INFO L231 Difference]: Finished difference. Result has 275 places, 573 transitions, 9070 flow [2024-10-24 15:36:40,518 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=6938, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=9070, PETRI_PLACES=275, PETRI_TRANSITIONS=573} [2024-10-24 15:36:40,519 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 186 predicate places. [2024-10-24 15:36:40,519 INFO L471 AbstractCegarLoop]: Abstraction has has 275 places, 573 transitions, 9070 flow [2024-10-24 15:36:40,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:40,521 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:40,521 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:36:40,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-24 15:36:40,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-24 15:36:40,726 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:40,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:40,726 INFO L85 PathProgramCache]: Analyzing trace with hash 361098670, now seen corresponding path program 6 times [2024-10-24 15:36:40,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:40,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545705702] [2024-10-24 15:36:40,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:40,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:41,466 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:41,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:41,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545705702] [2024-10-24 15:36:41,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545705702] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:36:41,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064119659] [2024-10-24 15:36:41,467 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-24 15:36:41,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:36:41,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:36:41,469 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:36:41,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 15:36:41,585 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-10-24 15:36:41,586 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:36:41,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-24 15:36:41,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:36:41,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-24 15:36:41,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-24 15:36:41,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-24 15:36:41,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-24 15:36:41,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:41,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:41,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:41,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:41,898 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:36:41,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-24 15:36:41,906 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:41,906 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:36:41,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064119659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:41,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:36:41,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-24 15:36:41,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326512440] [2024-10-24 15:36:41,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:41,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:36:41,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:41,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:36:41,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-10-24 15:36:42,392 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-24 15:36:42,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 573 transitions, 9070 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:42,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:42,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-24 15:36:42,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:43,545 INFO L124 PetriNetUnfolderBase]: 1182/4554 cut-off events. [2024-10-24 15:36:43,546 INFO L125 PetriNetUnfolderBase]: For 33273/33392 co-relation queries the response was YES. [2024-10-24 15:36:43,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25054 conditions, 4554 events. 1182/4554 cut-off events. For 33273/33392 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 46016 event pairs, 114 based on Foata normal form. 22/4561 useless extension candidates. Maximal degree in co-relation 24963. Up to 1131 conditions per place. [2024-10-24 15:36:43,611 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 594 selfloop transitions, 169 changer transitions 0/821 dead transitions. [2024-10-24 15:36:43,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 821 transitions, 13770 flow [2024-10-24 15:36:43,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 15:36:43,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-24 15:36:43,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 941 transitions. [2024-10-24 15:36:43,614 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.697037037037037 [2024-10-24 15:36:43,614 INFO L175 Difference]: Start difference. First operand has 275 places, 573 transitions, 9070 flow. Second operand 15 states and 941 transitions. [2024-10-24 15:36:43,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 821 transitions, 13770 flow [2024-10-24 15:36:44,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 821 transitions, 13690 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-10-24 15:36:44,287 INFO L231 Difference]: Finished difference. Result has 292 places, 610 transitions, 10293 flow [2024-10-24 15:36:44,288 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=8993, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=10293, PETRI_PLACES=292, PETRI_TRANSITIONS=610} [2024-10-24 15:36:44,288 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 203 predicate places. [2024-10-24 15:36:44,288 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 610 transitions, 10293 flow [2024-10-24 15:36:44,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:44,289 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:44,289 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:36:44,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-24 15:36:44,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-24 15:36:44,490 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:44,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:44,490 INFO L85 PathProgramCache]: Analyzing trace with hash 300743488, now seen corresponding path program 7 times [2024-10-24 15:36:44,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:44,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011231884] [2024-10-24 15:36:44,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:44,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:45,220 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:45,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:45,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011231884] [2024-10-24 15:36:45,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011231884] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:36:45,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99375349] [2024-10-24 15:36:45,221 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-24 15:36:45,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:36:45,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:36:45,223 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:36:45,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-24 15:36:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:45,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-24 15:36:45,333 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:36:45,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-24 15:36:45,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-24 15:36:45,452 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:36:45,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-24 15:36:45,489 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:36:45,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-24 15:36:45,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:45,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:45,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:45,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:45,592 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:36:45,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-24 15:36:45,600 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:45,600 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:36:45,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99375349] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:45,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:36:45,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-24 15:36:45,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35594793] [2024-10-24 15:36:45,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:45,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:36:45,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:45,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:36:45,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-10-24 15:36:45,928 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-24 15:36:45,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 610 transitions, 10293 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:45,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:45,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-24 15:36:45,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:47,489 INFO L124 PetriNetUnfolderBase]: 1193/4585 cut-off events. [2024-10-24 15:36:47,489 INFO L125 PetriNetUnfolderBase]: For 39150/39279 co-relation queries the response was YES. [2024-10-24 15:36:47,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26218 conditions, 4585 events. 1193/4585 cut-off events. For 39150/39279 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 46442 event pairs, 99 based on Foata normal form. 16/4590 useless extension candidates. Maximal degree in co-relation 26119. Up to 1721 conditions per place. [2024-10-24 15:36:47,561 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 518 selfloop transitions, 174 changer transitions 0/750 dead transitions. [2024-10-24 15:36:47,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 750 transitions, 13515 flow [2024-10-24 15:36:47,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 15:36:47,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-24 15:36:47,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 881 transitions. [2024-10-24 15:36:47,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6992063492063492 [2024-10-24 15:36:47,565 INFO L175 Difference]: Start difference. First operand has 292 places, 610 transitions, 10293 flow. Second operand 14 states and 881 transitions. [2024-10-24 15:36:47,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 750 transitions, 13515 flow [2024-10-24 15:36:48,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 750 transitions, 12984 flow, removed 159 selfloop flow, removed 7 redundant places. [2024-10-24 15:36:48,183 INFO L231 Difference]: Finished difference. Result has 304 places, 638 transitions, 10753 flow [2024-10-24 15:36:48,183 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=9776, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=610, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10753, PETRI_PLACES=304, PETRI_TRANSITIONS=638} [2024-10-24 15:36:48,184 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 215 predicate places. [2024-10-24 15:36:48,184 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 638 transitions, 10753 flow [2024-10-24 15:36:48,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:48,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:48,185 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:36:48,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-24 15:36:48,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-24 15:36:48,385 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:48,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:48,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1447400219, now seen corresponding path program 4 times [2024-10-24 15:36:48,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:48,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840643120] [2024-10-24 15:36:48,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:48,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:48,913 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:48,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:48,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840643120] [2024-10-24 15:36:48,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840643120] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:36:48,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377344551] [2024-10-24 15:36:48,914 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 15:36:48,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:36:48,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:36:48,916 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:36:48,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-24 15:36:49,026 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 15:36:49,026 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:36:49,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-24 15:36:49,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:36:49,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 15:36:49,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-24 15:36:49,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-10-24 15:36:49,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-10-24 15:36:49,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:49,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:49,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:49,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:49,385 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:36:49,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-10-24 15:36:49,394 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:49,394 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:36:49,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377344551] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:49,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:36:49,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-24 15:36:49,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621670745] [2024-10-24 15:36:49,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:49,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:36:49,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:49,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:36:49,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2024-10-24 15:36:49,793 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-10-24 15:36:49,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 638 transitions, 10753 flow. Second operand has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:49,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:49,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-10-24 15:36:49,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:51,345 INFO L124 PetriNetUnfolderBase]: 1313/5136 cut-off events. [2024-10-24 15:36:51,345 INFO L125 PetriNetUnfolderBase]: For 45174/45544 co-relation queries the response was YES. [2024-10-24 15:36:51,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29574 conditions, 5136 events. 1313/5136 cut-off events. For 45174/45544 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 53660 event pairs, 96 based on Foata normal form. 90/5215 useless extension candidates. Maximal degree in co-relation 29469. Up to 1975 conditions per place. [2024-10-24 15:36:51,405 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 465 selfloop transitions, 267 changer transitions 0/816 dead transitions. [2024-10-24 15:36:51,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 816 transitions, 15015 flow [2024-10-24 15:36:51,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-24 15:36:51,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-10-24 15:36:51,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1528 transitions. [2024-10-24 15:36:51,409 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7381642512077294 [2024-10-24 15:36:51,409 INFO L175 Difference]: Start difference. First operand has 304 places, 638 transitions, 10753 flow. Second operand 23 states and 1528 transitions. [2024-10-24 15:36:51,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 816 transitions, 15015 flow [2024-10-24 15:36:52,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 816 transitions, 14712 flow, removed 26 selfloop flow, removed 7 redundant places. [2024-10-24 15:36:52,118 INFO L231 Difference]: Finished difference. Result has 329 places, 723 transitions, 12979 flow [2024-10-24 15:36:52,118 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=10494, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=198, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=12979, PETRI_PLACES=329, PETRI_TRANSITIONS=723} [2024-10-24 15:36:52,119 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 240 predicate places. [2024-10-24 15:36:52,119 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 723 transitions, 12979 flow [2024-10-24 15:36:52,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:52,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:52,119 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:36:52,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-24 15:36:52,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-24 15:36:52,320 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:52,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:52,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1274136676, now seen corresponding path program 8 times [2024-10-24 15:36:52,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:52,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122817971] [2024-10-24 15:36:52,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:52,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:52,907 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:52,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:52,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122817971] [2024-10-24 15:36:52,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122817971] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:36:52,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288093116] [2024-10-24 15:36:52,908 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:36:52,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:36:52,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:36:52,910 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:36:52,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-24 15:36:53,038 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 15:36:53,038 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:36:53,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-24 15:36:53,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:36:53,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-24 15:36:53,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-24 15:36:53,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-24 15:36:53,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-24 15:36:53,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:53,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:53,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:53,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:53,401 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:36:53,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 67 [2024-10-24 15:36:53,485 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:53,485 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:36:53,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288093116] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:53,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:36:53,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 22 [2024-10-24 15:36:53,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794168719] [2024-10-24 15:36:53,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:53,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:36:53,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:53,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:36:53,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2024-10-24 15:36:53,872 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 90 [2024-10-24 15:36:53,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 723 transitions, 12979 flow. Second operand has 12 states, 12 states have (on average 56.25) internal successors, (675), 12 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:53,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:53,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 90 [2024-10-24 15:36:53,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:55,478 INFO L124 PetriNetUnfolderBase]: 1446/5469 cut-off events. [2024-10-24 15:36:55,478 INFO L125 PetriNetUnfolderBase]: For 55606/55749 co-relation queries the response was YES. [2024-10-24 15:36:55,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33505 conditions, 5469 events. 1446/5469 cut-off events. For 55606/55749 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 57241 event pairs, 163 based on Foata normal form. 16/5463 useless extension candidates. Maximal degree in co-relation 33390. Up to 1476 conditions per place. [2024-10-24 15:36:55,546 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 622 selfloop transitions, 227 changer transitions 0/887 dead transitions. [2024-10-24 15:36:55,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 887 transitions, 17176 flow [2024-10-24 15:36:55,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 15:36:55,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-24 15:36:55,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 808 transitions. [2024-10-24 15:36:55,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6905982905982906 [2024-10-24 15:36:55,548 INFO L175 Difference]: Start difference. First operand has 329 places, 723 transitions, 12979 flow. Second operand 13 states and 808 transitions. [2024-10-24 15:36:55,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 887 transitions, 17176 flow [2024-10-24 15:36:56,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 887 transitions, 17062 flow, removed 47 selfloop flow, removed 3 redundant places. [2024-10-24 15:36:56,319 INFO L231 Difference]: Finished difference. Result has 344 places, 753 transitions, 14242 flow [2024-10-24 15:36:56,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=12866, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=723, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=198, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=14242, PETRI_PLACES=344, PETRI_TRANSITIONS=753} [2024-10-24 15:36:56,320 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 255 predicate places. [2024-10-24 15:36:56,320 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 753 transitions, 14242 flow [2024-10-24 15:36:56,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 56.25) internal successors, (675), 12 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:56,320 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:36:56,321 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:36:56,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-24 15:36:56,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-24 15:36:56,521 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:36:56,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:36:56,522 INFO L85 PathProgramCache]: Analyzing trace with hash -27766914, now seen corresponding path program 9 times [2024-10-24 15:36:56,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:36:56,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783408466] [2024-10-24 15:36:56,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:36:56,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:36:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:36:57,092 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:57,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:36:57,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783408466] [2024-10-24 15:36:57,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783408466] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:36:57,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146333272] [2024-10-24 15:36:57,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 15:36:57,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:36:57,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:36:57,095 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:36:57,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-24 15:36:57,218 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 15:36:57,219 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:36:57,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-24 15:36:57,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:36:57,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-24 15:36:57,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-24 15:36:57,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-24 15:36:57,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-24 15:36:57,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:57,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:57,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:57,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:36:57,546 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:36:57,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-24 15:36:57,553 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:36:57,553 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:36:57,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146333272] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:36:57,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:36:57,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-24 15:36:57,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296368816] [2024-10-24 15:36:57,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:36:57,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:36:57,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:36:57,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:36:57,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-10-24 15:36:57,931 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-24 15:36:57,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 753 transitions, 14242 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:36:57,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:36:57,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-24 15:36:57,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:36:59,495 INFO L124 PetriNetUnfolderBase]: 1375/5326 cut-off events. [2024-10-24 15:36:59,495 INFO L125 PetriNetUnfolderBase]: For 60242/60359 co-relation queries the response was YES. [2024-10-24 15:36:59,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33689 conditions, 5326 events. 1375/5326 cut-off events. For 60242/60359 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 56124 event pairs, 100 based on Foata normal form. 27/5336 useless extension candidates. Maximal degree in co-relation 33567. Up to 2201 conditions per place. [2024-10-24 15:36:59,710 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 632 selfloop transitions, 213 changer transitions 0/916 dead transitions. [2024-10-24 15:36:59,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 916 transitions, 18410 flow [2024-10-24 15:36:59,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 15:36:59,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-24 15:36:59,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1053 transitions. [2024-10-24 15:36:59,712 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6882352941176471 [2024-10-24 15:36:59,712 INFO L175 Difference]: Start difference. First operand has 344 places, 753 transitions, 14242 flow. Second operand 17 states and 1053 transitions. [2024-10-24 15:36:59,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 916 transitions, 18410 flow [2024-10-24 15:37:00,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 916 transitions, 18219 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-10-24 15:37:00,518 INFO L231 Difference]: Finished difference. Result has 361 places, 781 transitions, 15217 flow [2024-10-24 15:37:00,518 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=14051, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=753, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=15217, PETRI_PLACES=361, PETRI_TRANSITIONS=781} [2024-10-24 15:37:00,519 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 272 predicate places. [2024-10-24 15:37:00,519 INFO L471 AbstractCegarLoop]: Abstraction has has 361 places, 781 transitions, 15217 flow [2024-10-24 15:37:00,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:37:00,519 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:37:00,519 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:37:00,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-24 15:37:00,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-24 15:37:00,720 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:37:00,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:37:00,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1313629989, now seen corresponding path program 5 times [2024-10-24 15:37:00,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:37:00,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051080030] [2024-10-24 15:37:00,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:37:00,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:37:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:37:01,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:37:01,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:37:01,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051080030] [2024-10-24 15:37:01,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051080030] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:37:01,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237931168] [2024-10-24 15:37:01,188 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 15:37:01,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:37:01,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:37:01,190 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:37:01,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-24 15:37:01,309 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 15:37:01,310 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:37:01,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-10-24 15:37:01,314 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:37:01,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 15:37:01,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-24 15:37:01,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-10-24 15:37:01,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2024-10-24 15:37:01,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 15:37:01,741 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:37:01,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 41 [2024-10-24 15:37:01,776 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:37:01,777 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:37:08,731 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:37:08,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237931168] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 15:37:08,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 15:37:08,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12, 14] total 34 [2024-10-24 15:37:08,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075890566] [2024-10-24 15:37:08,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:37:08,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:37:08,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:37:08,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:37:08,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1012, Unknown=1, NotChecked=0, Total=1190 [2024-10-24 15:37:13,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-24 15:37:16,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-24 15:37:20,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-24 15:37:24,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-24 15:37:28,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.69s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-24 15:37:29,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]