./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/barrier_2t.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/barrier_2t.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 f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:21:08,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:21:08,752 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:21:08,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:21:08,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:21:08,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:21:08,785 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:21:08,786 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:21:08,786 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:21:08,787 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:21:08,788 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:21:08,788 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:21:08,789 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:21:08,789 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:21:08,791 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:21:08,791 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:21:08,791 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:21:08,792 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:21:08,792 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:21:08,792 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:21:08,793 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:21:08,796 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:21:08,796 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:21:08,796 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:21:08,798 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:21:08,798 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:21:08,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:21:08,798 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:21:08,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:21:08,799 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:21:08,799 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:21:08,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:21:08,799 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:21:08,800 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:21:08,800 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:21:08,800 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:21:08,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:21:08,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:21:08,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:21:08,802 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:21:08,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:21:08,803 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 [2024-10-24 15:21:09,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:21:09,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:21:09,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:21:09,095 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:21:09,095 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:21:09,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/barrier_2t.i [2024-10-24 15:21:10,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:21:10,822 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:21:10,824 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/barrier_2t.i [2024-10-24 15:21:10,847 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22eb937b/7dfa10f357804322a164615450a9e6eb/FLAGab48a360a [2024-10-24 15:21:10,864 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22eb937b/7dfa10f357804322a164615450a9e6eb [2024-10-24 15:21:10,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:21:10,868 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:21:10,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:21:10,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:21:10,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:21:10,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:21:10" (1/1) ... [2024-10-24 15:21:10,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57016b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:10, skipping insertion in model container [2024-10-24 15:21:10,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:21:10" (1/1) ... [2024-10-24 15:21:10,929 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:21:11,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:21:11,377 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:21:11,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:21:11,510 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:21:11,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11 WrapperNode [2024-10-24 15:21:11,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:21:11,512 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:21:11,512 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:21:11,512 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:21:11,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,620 INFO L138 Inliner]: procedures = 174, calls = 94, calls flagged for inlining = 19, calls inlined = 31, statements flattened = 1054 [2024-10-24 15:21:11,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:21:11,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:21:11,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:21:11,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:21:11,630 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,722 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,738 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,743 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:21:11,759 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:21:11,759 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:21:11,759 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:21:11,764 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:21:11,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:21:11,801 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 15:21:11,804 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 15:21:11,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:21:11,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:21:11,854 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:21:11,854 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-10-24 15:21:11,854 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-10-24 15:21:11,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:21:11,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-24 15:21:11,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 15:21:11,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-24 15:21:11,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 15:21:11,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:21:11,855 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:21:11,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:21:11,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:21:11,859 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 15:21:12,036 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:21:12,038 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:21:13,518 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:21:13,518 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:21:13,602 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:21:13,605 INFO L314 CfgBuilder]: Removed 20 assume(true) statements. [2024-10-24 15:21:13,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:21:13 BoogieIcfgContainer [2024-10-24 15:21:13,606 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:21:13,608 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:21:13,608 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:21:13,613 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:21:13,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:21:10" (1/3) ... [2024-10-24 15:21:13,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a87307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:21:13, skipping insertion in model container [2024-10-24 15:21:13,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (2/3) ... [2024-10-24 15:21:13,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a87307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:21:13, skipping insertion in model container [2024-10-24 15:21:13,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:21:13" (3/3) ... [2024-10-24 15:21:13,616 INFO L112 eAbstractionObserver]: Analyzing ICFG barrier_2t.i [2024-10-24 15:21:13,632 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:21:13,632 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 99 error locations. [2024-10-24 15:21:13,633 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:21:13,874 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 15:21:13,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1115 places, 1205 transitions, 2417 flow [2024-10-24 15:21:14,747 INFO L124 PetriNetUnfolderBase]: 141/1783 cut-off events. [2024-10-24 15:21:14,748 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:21:14,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1788 conditions, 1783 events. 141/1783 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7045 event pairs, 0 based on Foata normal form. 0/1492 useless extension candidates. Maximal degree in co-relation 1084. Up to 4 conditions per place. [2024-10-24 15:21:14,808 INFO L82 GeneralOperation]: Start removeDead. Operand has 1115 places, 1205 transitions, 2417 flow [2024-10-24 15:21:14,936 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1115 places, 1205 transitions, 2417 flow [2024-10-24 15:21:14,952 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:21:14,961 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;@270e69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:21:14,962 INFO L334 AbstractCegarLoop]: Starting to check reachability of 144 error locations. [2024-10-24 15:21:14,968 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:21:14,968 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2024-10-24 15:21:14,969 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:21:14,969 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:21:14,970 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] [2024-10-24 15:21:14,970 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-10-24 15:21:14,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:21:14,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1082267004, now seen corresponding path program 1 times [2024-10-24 15:21:14,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:21:14,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931004758] [2024-10-24 15:21:14,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:21:14,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:21:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:21:15,939 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 15:21:15,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:21:15,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931004758] [2024-10-24 15:21:15,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931004758] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:21:15,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:21:15,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:21:15,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452283667] [2024-10-24 15:21:15,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:21:15,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:21:15,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:21:15,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:21:15,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:21:17,874 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 857 out of 1205 [2024-10-24 15:21:17,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1115 places, 1205 transitions, 2417 flow. Second operand has 6 states, 6 states have (on average 858.5) internal successors, (5151), 6 states have internal predecessors, (5151), 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 15:21:17,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:21:17,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 857 of 1205 [2024-10-24 15:21:17,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:21:34,690 INFO L124 PetriNetUnfolderBase]: 18617/86558 cut-off events. [2024-10-24 15:21:34,691 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2024-10-24 15:21:34,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119856 conditions, 86558 events. 18617/86558 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 1059228 event pairs, 16093 based on Foata normal form. 8306/84291 useless extension candidates. Maximal degree in co-relation 119043. Up to 33288 conditions per place. [2024-10-24 15:21:35,131 INFO L140 encePairwiseOnDemand]: 1133/1205 looper letters, 276 selfloop transitions, 5 changer transitions 3/1115 dead transitions. [2024-10-24 15:21:35,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1096 places, 1115 transitions, 2799 flow [2024-10-24 15:21:35,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:21:35,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:21:35,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5490 transitions. [2024-10-24 15:21:35,165 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7593360995850622 [2024-10-24 15:21:35,167 INFO L175 Difference]: Start difference. First operand has 1115 places, 1205 transitions, 2417 flow. Second operand 6 states and 5490 transitions. [2024-10-24 15:21:35,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1096 places, 1115 transitions, 2799 flow [2024-10-24 15:21:35,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1096 places, 1115 transitions, 2799 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:21:35,200 INFO L231 Difference]: Finished difference. Result has 1096 places, 1112 transitions, 2241 flow [2024-10-24 15:21:35,203 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1205, PETRI_DIFFERENCE_MINUEND_FLOW=2237, PETRI_DIFFERENCE_MINUEND_PLACES=1091, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2241, PETRI_PLACES=1096, PETRI_TRANSITIONS=1112} [2024-10-24 15:21:35,207 INFO L277 CegarLoopForPetriNet]: 1115 programPoint places, -19 predicate places. [2024-10-24 15:21:35,208 INFO L471 AbstractCegarLoop]: Abstraction has has 1096 places, 1112 transitions, 2241 flow [2024-10-24 15:21:35,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 858.5) internal successors, (5151), 6 states have internal predecessors, (5151), 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 15:21:35,212 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:21:35,212 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] [2024-10-24 15:21:35,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:21:35,212 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-10-24 15:21:35,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:21:35,213 INFO L85 PathProgramCache]: Analyzing trace with hash -2106597133, now seen corresponding path program 1 times [2024-10-24 15:21:35,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:21:35,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523498570] [2024-10-24 15:21:35,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:21:35,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:21:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:21:35,296 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 15:21:35,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:21:35,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523498570] [2024-10-24 15:21:35,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523498570] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:21:35,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:21:35,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:21:35,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458504462] [2024-10-24 15:21:35,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:21:35,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:21:35,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:21:35,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:21:35,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:21:35,352 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1103 out of 1205 [2024-10-24 15:21:35,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1096 places, 1112 transitions, 2241 flow. Second operand has 3 states, 3 states have (on average 1104.3333333333333) internal successors, (3313), 3 states have internal predecessors, (3313), 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 15:21:35,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:21:35,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1103 of 1205 [2024-10-24 15:21:35,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:21:37,502 INFO L124 PetriNetUnfolderBase]: 563/9912 cut-off events. [2024-10-24 15:21:37,502 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 15:21:37,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10537 conditions, 9912 events. 563/9912 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 91213 event pairs, 210 based on Foata normal form. 1/8500 useless extension candidates. Maximal degree in co-relation 10453. Up to 608 conditions per place. [2024-10-24 15:21:37,594 INFO L140 encePairwiseOnDemand]: 1202/1205 looper letters, 35 selfloop transitions, 2 changer transitions 0/1113 dead transitions. [2024-10-24 15:21:37,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1095 places, 1113 transitions, 2317 flow [2024-10-24 15:21:37,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:21:37,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:21:37,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3347 transitions. [2024-10-24 15:21:37,602 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9258644536652836 [2024-10-24 15:21:37,602 INFO L175 Difference]: Start difference. First operand has 1096 places, 1112 transitions, 2241 flow. Second operand 3 states and 3347 transitions. [2024-10-24 15:21:37,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1095 places, 1113 transitions, 2317 flow [2024-10-24 15:21:37,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1090 places, 1113 transitions, 2307 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:21:37,622 INFO L231 Difference]: Finished difference. Result has 1091 places, 1113 transitions, 2243 flow [2024-10-24 15:21:37,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1205, PETRI_DIFFERENCE_MINUEND_FLOW=2231, PETRI_DIFFERENCE_MINUEND_PLACES=1088, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2243, PETRI_PLACES=1091, PETRI_TRANSITIONS=1113} [2024-10-24 15:21:37,625 INFO L277 CegarLoopForPetriNet]: 1115 programPoint places, -24 predicate places. [2024-10-24 15:21:37,626 INFO L471 AbstractCegarLoop]: Abstraction has has 1091 places, 1113 transitions, 2243 flow [2024-10-24 15:21:37,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1104.3333333333333) internal successors, (3313), 3 states have internal predecessors, (3313), 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 15:21:37,628 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:21:37,628 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 15:21:37,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:21:37,629 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-10-24 15:21:37,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:21:37,630 INFO L85 PathProgramCache]: Analyzing trace with hash 942994488, now seen corresponding path program 1 times [2024-10-24 15:21:37,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:21:37,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365668221] [2024-10-24 15:21:37,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:21:37,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:21:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:21:38,041 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 15:21:38,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:21:38,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365668221] [2024-10-24 15:21:38,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365668221] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:21:38,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:21:38,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:21:38,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853939375] [2024-10-24 15:21:38,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:21:38,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:21:38,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:21:38,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:21:38,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:21:39,673 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 857 out of 1205 [2024-10-24 15:21:39,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1091 places, 1113 transitions, 2243 flow. Second operand has 6 states, 6 states have (on average 858.5) internal successors, (5151), 6 states have internal predecessors, (5151), 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 15:21:39,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:21:39,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 857 of 1205 [2024-10-24 15:21:39,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:21:55,338 INFO L124 PetriNetUnfolderBase]: 18617/86582 cut-off events. [2024-10-24 15:21:55,338 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-10-24 15:21:55,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119895 conditions, 86582 events. 18617/86582 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 1059341 event pairs, 16093 based on Foata normal form. 0/76011 useless extension candidates. Maximal degree in co-relation 119816. Up to 33291 conditions per place. [2024-10-24 15:21:55,762 INFO L140 encePairwiseOnDemand]: 1199/1205 looper letters, 277 selfloop transitions, 5 changer transitions 0/1112 dead transitions. [2024-10-24 15:21:55,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1095 places, 1112 transitions, 2805 flow [2024-10-24 15:21:55,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:21:55,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:21:55,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5424 transitions. [2024-10-24 15:21:55,774 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.750207468879668 [2024-10-24 15:21:55,774 INFO L175 Difference]: Start difference. First operand has 1091 places, 1113 transitions, 2243 flow. Second operand 6 states and 5424 transitions. [2024-10-24 15:21:55,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1095 places, 1112 transitions, 2805 flow [2024-10-24 15:21:55,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1094 places, 1112 transitions, 2803 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:21:55,795 INFO L231 Difference]: Finished difference. Result has 1094 places, 1112 transitions, 2249 flow [2024-10-24 15:21:55,797 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1205, PETRI_DIFFERENCE_MINUEND_FLOW=2239, PETRI_DIFFERENCE_MINUEND_PLACES=1089, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2249, PETRI_PLACES=1094, PETRI_TRANSITIONS=1112} [2024-10-24 15:21:55,798 INFO L277 CegarLoopForPetriNet]: 1115 programPoint places, -21 predicate places. [2024-10-24 15:21:55,798 INFO L471 AbstractCegarLoop]: Abstraction has has 1094 places, 1112 transitions, 2249 flow [2024-10-24 15:21:55,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 858.5) internal successors, (5151), 6 states have internal predecessors, (5151), 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 15:21:55,803 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:21:55,803 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 15:21:55,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:21:55,803 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-10-24 15:21:55,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:21:55,804 INFO L85 PathProgramCache]: Analyzing trace with hash 2033051141, now seen corresponding path program 1 times [2024-10-24 15:21:55,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:21:55,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2194266] [2024-10-24 15:21:55,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:21:55,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:21:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:21:56,228 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 15:21:56,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:21:56,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2194266] [2024-10-24 15:21:56,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2194266] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:21:56,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:21:56,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:21:56,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766248187] [2024-10-24 15:21:56,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:21:56,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:21:56,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:21:56,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:21:56,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:21:58,478 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 857 out of 1205 [2024-10-24 15:21:58,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1094 places, 1112 transitions, 2249 flow. Second operand has 6 states, 6 states have (on average 858.5) internal successors, (5151), 6 states have internal predecessors, (5151), 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 15:21:58,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:21:58,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 857 of 1205 [2024-10-24 15:21:58,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand