./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-divine/one_time_barrier_3t.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-divine/one_time_barrier_3t.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 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:21:12,757 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:21:12,838 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:21:12,842 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:21:12,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:21:12,875 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:21:12,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:21:12,878 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:21:12,879 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:21:12,880 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:21:12,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:21:12,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:21:12,881 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:21:12,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:21:12,884 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:21:12,884 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:21:12,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:21:12,884 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:21:12,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:21:12,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:21:12,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:21:12,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:21:12,888 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:21:12,888 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:21:12,888 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:21:12,888 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:21:12,889 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:21:12,889 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:21:12,889 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:21:12,889 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:21:12,889 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:21:12,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:21:12,890 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:21:12,891 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:21:12,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:21:12,891 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:21:12,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:21:12,892 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:21:12,892 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:21:12,892 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:21:12,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:21:12,893 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f [2024-10-24 15:21:13,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:21:13,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:21:13,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:21:13,162 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:21:13,163 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:21:13,165 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2024-10-24 15:21:14,653 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:21:14,911 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:21:14,911 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2024-10-24 15:21:14,930 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99c7c1241/5c4c6332596744b195e3f6970f2da608/FLAG07235cd97 [2024-10-24 15:21:14,944 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99c7c1241/5c4c6332596744b195e3f6970f2da608 [2024-10-24 15:21:14,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:21:14,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:21:14,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:21:14,952 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:21:14,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:21:14,961 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:21:14" (1/1) ... [2024-10-24 15:21:14,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a6e57fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:14, skipping insertion in model container [2024-10-24 15:21:14,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:21:14" (1/1) ... [2024-10-24 15:21:15,010 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:21:15,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:21:15,435 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:21:15,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:21:15,616 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:21:15,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:15 WrapperNode [2024-10-24 15:21:15,617 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:21:15,619 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:21:15,619 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:21:15,620 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:21:15,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:15" (1/1) ... [2024-10-24 15:21:15,692 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:15" (1/1) ... [2024-10-24 15:21:15,764 INFO L138 Inliner]: procedures = 174, calls = 91, calls flagged for inlining = 20, calls inlined = 35, statements flattened = 886 [2024-10-24 15:21:15,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:21:15,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:21:15,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:21:15,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:21:15,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:15" (1/1) ... [2024-10-24 15:21:15,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:15" (1/1) ... [2024-10-24 15:21:15,796 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:15" (1/1) ... [2024-10-24 15:21:15,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:15" (1/1) ... [2024-10-24 15:21:15,855 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:15" (1/1) ... [2024-10-24 15:21:15,863 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:15" (1/1) ... [2024-10-24 15:21:15,868 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:15" (1/1) ... [2024-10-24 15:21:15,874 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:15" (1/1) ... [2024-10-24 15:21:15,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:21:15,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:21:15,883 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:21:15,883 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:21:15,888 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:15" (1/1) ... [2024-10-24 15:21:15,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:21:15,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:21:15,924 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 15:21:15,926 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 15:21:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:21:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:21:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:21:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-10-24 15:21:15,966 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-10-24 15:21:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:21:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-24 15:21:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 15:21:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-24 15:21:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 15:21:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:21:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:21:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:21:15,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:21:15,968 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 15:21:16,128 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:21:16,130 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:21:17,368 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:21:17,369 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:21:17,434 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:21:17,437 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-24 15:21:17,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:21:17 BoogieIcfgContainer [2024-10-24 15:21:17,439 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:21:17,441 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:21:17,443 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:21:17,447 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:21:17,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:21:14" (1/3) ... [2024-10-24 15:21:17,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61844b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:21:17, skipping insertion in model container [2024-10-24 15:21:17,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:15" (2/3) ... [2024-10-24 15:21:17,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61844b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:21:17, skipping insertion in model container [2024-10-24 15:21:17,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:21:17" (3/3) ... [2024-10-24 15:21:17,452 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_3t.i [2024-10-24 15:21:17,469 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:21:17,470 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 77 error locations. [2024-10-24 15:21:17,470 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:21:17,660 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 15:21:17,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 949 places, 1035 transitions, 2077 flow [2024-10-24 15:21:18,464 INFO L124 PetriNetUnfolderBase]: 135/1533 cut-off events. [2024-10-24 15:21:18,465 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:21:18,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1538 conditions, 1533 events. 135/1533 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 5597 event pairs, 0 based on Foata normal form. 0/1280 useless extension candidates. Maximal degree in co-relation 924. Up to 4 conditions per place. [2024-10-24 15:21:18,506 INFO L82 GeneralOperation]: Start removeDead. Operand has 949 places, 1035 transitions, 2077 flow [2024-10-24 15:21:18,532 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 949 places, 1035 transitions, 2077 flow [2024-10-24 15:21:18,541 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:21:18,549 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;@546b0fc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:21:18,550 INFO L334 AbstractCegarLoop]: Starting to check reachability of 112 error locations. [2024-10-24 15:21:18,556 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:21:18,557 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2024-10-24 15:21:18,557 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:21:18,558 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:21:18,558 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] [2024-10-24 15:21:18,559 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-10-24 15:21:18,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:21:18,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1509972903, now seen corresponding path program 1 times [2024-10-24 15:21:18,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:21:18,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328680138] [2024-10-24 15:21:18,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:21:18,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:21:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:21:19,497 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 15:21:19,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:21:19,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328680138] [2024-10-24 15:21:19,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328680138] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:21:19,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:21:19,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:21:19,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794421110] [2024-10-24 15:21:19,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:21:19,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:21:19,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:21:19,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:21:19,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:21:21,113 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1035 [2024-10-24 15:21:21,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 949 places, 1035 transitions, 2077 flow. Second operand has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 0 states have call successors, (0), 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 15:21:21,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:21:21,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1035 [2024-10-24 15:21:21,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:21:32,142 INFO L124 PetriNetUnfolderBase]: 12711/59457 cut-off events. [2024-10-24 15:21:32,142 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-10-24 15:21:32,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82858 conditions, 59457 events. 12711/59457 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 692276 event pairs, 11413 based on Foata normal form. 7001/59290 useless extension candidates. Maximal degree in co-relation 82164. Up to 23391 conditions per place. [2024-10-24 15:21:32,473 INFO L140 encePairwiseOnDemand]: 959/1035 looper letters, 231 selfloop transitions, 5 changer transitions 3/937 dead transitions. [2024-10-24 15:21:32,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 926 places, 937 transitions, 2353 flow [2024-10-24 15:21:32,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:21:32,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:21:32,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4675 transitions. [2024-10-24 15:21:32,505 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7528180354267311 [2024-10-24 15:21:32,508 INFO L175 Difference]: Start difference. First operand has 949 places, 1035 transitions, 2077 flow. Second operand 6 states and 4675 transitions. [2024-10-24 15:21:32,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 926 places, 937 transitions, 2353 flow [2024-10-24 15:21:32,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 926 places, 937 transitions, 2353 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:21:32,539 INFO L231 Difference]: Finished difference. Result has 926 places, 934 transitions, 1885 flow [2024-10-24 15:21:32,545 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1035, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=921, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=937, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=932, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1885, PETRI_PLACES=926, PETRI_TRANSITIONS=934} [2024-10-24 15:21:32,551 INFO L277 CegarLoopForPetriNet]: 949 programPoint places, -23 predicate places. [2024-10-24 15:21:32,552 INFO L471 AbstractCegarLoop]: Abstraction has has 926 places, 934 transitions, 1885 flow [2024-10-24 15:21:32,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 0 states have call successors, (0), 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 15:21:32,555 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:21:32,556 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] [2024-10-24 15:21:32,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:21:32,556 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-10-24 15:21:32,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:21:32,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1493705184, now seen corresponding path program 1 times [2024-10-24 15:21:32,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:21:32,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812784987] [2024-10-24 15:21:32,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:21:32,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:21:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:21:32,622 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 15:21:32,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:21:32,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812784987] [2024-10-24 15:21:32,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812784987] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:21:32,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:21:32,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:21:32,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232650437] [2024-10-24 15:21:32,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:21:32,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:21:32,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:21:32,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:21:32,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:21:32,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 937 out of 1035 [2024-10-24 15:21:32,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 926 places, 934 transitions, 1885 flow. Second operand has 3 states, 3 states have (on average 938.3333333333334) internal successors, (2815), 3 states have internal predecessors, (2815), 0 states have call successors, (0), 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 15:21:32,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:21:32,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 937 of 1035 [2024-10-24 15:21:32,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:21:33,638 INFO L124 PetriNetUnfolderBase]: 247/4798 cut-off events. [2024-10-24 15:21:33,639 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 15:21:33,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5121 conditions, 4798 events. 247/4798 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36214 event pairs, 110 based on Foata normal form. 1/4139 useless extension candidates. Maximal degree in co-relation 5032. Up to 306 conditions per place. [2024-10-24 15:21:33,690 INFO L140 encePairwiseOnDemand]: 1032/1035 looper letters, 27 selfloop transitions, 2 changer transitions 0/935 dead transitions. [2024-10-24 15:21:33,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 925 places, 935 transitions, 1945 flow [2024-10-24 15:21:33,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:21:33,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:21:33,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2841 transitions. [2024-10-24 15:21:33,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.914975845410628 [2024-10-24 15:21:33,697 INFO L175 Difference]: Start difference. First operand has 926 places, 934 transitions, 1885 flow. Second operand 3 states and 2841 transitions. [2024-10-24 15:21:33,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 925 places, 935 transitions, 1945 flow [2024-10-24 15:21:33,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 920 places, 935 transitions, 1935 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:21:33,721 INFO L231 Difference]: Finished difference. Result has 921 places, 935 transitions, 1887 flow [2024-10-24 15:21:33,723 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1035, PETRI_DIFFERENCE_MINUEND_FLOW=1875, PETRI_DIFFERENCE_MINUEND_PLACES=918, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=932, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1887, PETRI_PLACES=921, PETRI_TRANSITIONS=935} [2024-10-24 15:21:33,724 INFO L277 CegarLoopForPetriNet]: 949 programPoint places, -28 predicate places. [2024-10-24 15:21:33,724 INFO L471 AbstractCegarLoop]: Abstraction has has 921 places, 935 transitions, 1887 flow [2024-10-24 15:21:33,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 938.3333333333334) internal successors, (2815), 3 states have internal predecessors, (2815), 0 states have call successors, (0), 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 15:21:33,726 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:21:33,727 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] [2024-10-24 15:21:33,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:21:33,727 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-10-24 15:21:33,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:21:33,729 INFO L85 PathProgramCache]: Analyzing trace with hash 952333540, now seen corresponding path program 1 times [2024-10-24 15:21:33,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:21:33,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115848989] [2024-10-24 15:21:33,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:21:33,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:21:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:21:34,203 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 15:21:34,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:21:34,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115848989] [2024-10-24 15:21:34,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115848989] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:21:34,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:21:34,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:21:34,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906839241] [2024-10-24 15:21:34,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:21:34,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:21:34,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:21:34,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:21:34,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:21:35,475 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1035 [2024-10-24 15:21:35,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 921 places, 935 transitions, 1887 flow. Second operand has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 0 states have call successors, (0), 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 15:21:35,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:21:35,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1035 [2024-10-24 15:21:35,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:21:47,370 INFO L124 PetriNetUnfolderBase]: 12711/59481 cut-off events. [2024-10-24 15:21:47,371 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-10-24 15:21:47,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82897 conditions, 59481 events. 12711/59481 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 692229 event pairs, 11413 based on Foata normal form. 0/52315 useless extension candidates. Maximal degree in co-relation 82813. Up to 23394 conditions per place. [2024-10-24 15:21:47,680 INFO L140 encePairwiseOnDemand]: 1029/1035 looper letters, 232 selfloop transitions, 5 changer transitions 0/934 dead transitions. [2024-10-24 15:21:47,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 925 places, 934 transitions, 2359 flow [2024-10-24 15:21:47,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:21:47,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:21:47,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4605 transitions. [2024-10-24 15:21:47,691 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7415458937198067 [2024-10-24 15:21:47,692 INFO L175 Difference]: Start difference. First operand has 921 places, 935 transitions, 1887 flow. Second operand 6 states and 4605 transitions. [2024-10-24 15:21:47,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 925 places, 934 transitions, 2359 flow [2024-10-24 15:21:47,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 924 places, 934 transitions, 2357 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:21:47,711 INFO L231 Difference]: Finished difference. Result has 924 places, 934 transitions, 1893 flow [2024-10-24 15:21:47,712 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1035, PETRI_DIFFERENCE_MINUEND_FLOW=1883, PETRI_DIFFERENCE_MINUEND_PLACES=919, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=929, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1893, PETRI_PLACES=924, PETRI_TRANSITIONS=934} [2024-10-24 15:21:47,713 INFO L277 CegarLoopForPetriNet]: 949 programPoint places, -25 predicate places. [2024-10-24 15:21:47,713 INFO L471 AbstractCegarLoop]: Abstraction has has 924 places, 934 transitions, 1893 flow [2024-10-24 15:21:47,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 0 states have call successors, (0), 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 15:21:47,716 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:21:47,717 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, 1, 1, 1, 1, 1] [2024-10-24 15:21:47,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:21:47,717 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-10-24 15:21:47,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:21:47,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1819614453, now seen corresponding path program 1 times [2024-10-24 15:21:47,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:21:47,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621229946] [2024-10-24 15:21:47,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:21:47,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:21:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:21:48,267 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 15:21:48,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:21:48,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621229946] [2024-10-24 15:21:48,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621229946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:21:48,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:21:48,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:21:48,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501834677] [2024-10-24 15:21:48,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:21:48,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:21:48,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:21:48,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:21:48,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:21:49,566 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1035 [2024-10-24 15:21:49,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 924 places, 934 transitions, 1893 flow. Second operand has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 0 states have call successors, (0), 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 15:21:49,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:21:49,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1035 [2024-10-24 15:21:49,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand