./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 8dedc3ea8e96f333d418860556906c8618bbf50be75cff10b45de6d34fe23444 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:28:53,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:28:53,520 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:28:53,525 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:28:53,525 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:28:53,549 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:28:53,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:28:53,550 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:28:53,551 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:28:53,551 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:28:53,552 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:28:53,552 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:28:53,552 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:28:53,553 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:28:53,553 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:28:53,553 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:28:53,553 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:28:53,553 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:28:53,553 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:28:53,554 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:28:53,554 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:28:53,554 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:28:53,554 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:28:53,554 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:28:53,554 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:28:53,554 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:28:53,554 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:28:53,555 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:28:53,555 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:28:53,555 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:28:53,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:28:53,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:28:53,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:28:53,555 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:28:53,556 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:28:53,556 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:28:53,556 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:28:53,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:28:53,556 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:28:53,556 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:28:53,556 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:28:53,557 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:28:53,557 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 8dedc3ea8e96f333d418860556906c8618bbf50be75cff10b45de6d34fe23444 [2025-02-08 05:28:53,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:28:53,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:28:53,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:28:53,847 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:28:53,847 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:28:53,849 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-2.i [2025-02-08 05:28:55,145 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5dafa69ad/799ea2d3f83f4369bddbc780acf6227c/FLAGbfcf56fa5 [2025-02-08 05:28:55,545 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:28:55,546 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-2.i [2025-02-08 05:28:55,571 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5dafa69ad/799ea2d3f83f4369bddbc780acf6227c/FLAGbfcf56fa5 [2025-02-08 05:28:55,705 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5dafa69ad/799ea2d3f83f4369bddbc780acf6227c [2025-02-08 05:28:55,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:28:55,709 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:28:55,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:28:55,713 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:28:55,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:28:55,717 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:28:55" (1/1) ... [2025-02-08 05:28:55,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a5d3808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:28:55, skipping insertion in model container [2025-02-08 05:28:55,718 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:28:55" (1/1) ... [2025-02-08 05:28:55,753 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:28:56,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:28:56,326 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:28:56,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:28:56,478 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:28:56,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:28:56 WrapperNode [2025-02-08 05:28:56,479 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:28:56,480 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:28:56,480 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:28:56,480 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:28:56,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:28:56" (1/1) ... [2025-02-08 05:28:56,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:28:56" (1/1) ... [2025-02-08 05:28:56,536 INFO L138 Inliner]: procedures = 362, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 121 [2025-02-08 05:28:56,537 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:28:56,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:28:56,540 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:28:56,540 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:28:56,545 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:28:56" (1/1) ... [2025-02-08 05:28:56,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:28:56" (1/1) ... [2025-02-08 05:28:56,549 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:28:56" (1/1) ... [2025-02-08 05:28:56,549 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:28:56" (1/1) ... [2025-02-08 05:28:56,557 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:28:56" (1/1) ... [2025-02-08 05:28:56,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:28:56" (1/1) ... [2025-02-08 05:28:56,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:28:56" (1/1) ... [2025-02-08 05:28:56,561 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:28:56" (1/1) ... [2025-02-08 05:28:56,563 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:28:56,564 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:28:56,565 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:28:56,565 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:28:56,566 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:28:56" (1/1) ... [2025-02-08 05:28:56,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:28:56,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:28:56,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 05:28:56,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 05:28:56,625 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2025-02-08 05:28:56,625 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2025-02-08 05:28:56,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:28:56,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:28:56,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:28:56,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:28:56,626 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 05:28:56,769 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:28:56,771 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:28:56,992 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:28:56,993 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:28:57,005 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:28:57,005 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:28:57,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:28:57 BoogieIcfgContainer [2025-02-08 05:28:57,006 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:28:57,008 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:28:57,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:28:57,012 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:28:57,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:28:55" (1/3) ... [2025-02-08 05:28:57,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633b66e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:28:57, skipping insertion in model container [2025-02-08 05:28:57,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:28:56" (2/3) ... [2025-02-08 05:28:57,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633b66e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:28:57, skipping insertion in model container [2025-02-08 05:28:57,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:28:57" (3/3) ... [2025-02-08 05:28:57,015 INFO L128 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-2.i [2025-02-08 05:28:57,028 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:28:57,030 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pthread-demo-datarace-2.i that has 2 procedures, 157 locations, 1 initial locations, 2 loop locations, and 6 error locations. [2025-02-08 05:28:57,030 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:28:57,094 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-08 05:28:57,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 162 transitions, 331 flow [2025-02-08 05:28:57,229 INFO L124 PetriNetUnfolderBase]: 6/161 cut-off events. [2025-02-08 05:28:57,231 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:28:57,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 161 events. 6/161 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 118 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2025-02-08 05:28:57,237 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 162 transitions, 331 flow [2025-02-08 05:28:57,242 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 153 transitions, 312 flow [2025-02-08 05:28:57,252 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:28:57,268 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;@7faf09dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:28:57,268 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-02-08 05:28:57,294 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:28:57,294 INFO L124 PetriNetUnfolderBase]: 1/91 cut-off events. [2025-02-08 05:28:57,295 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:28:57,295 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:28:57,295 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:28:57,300 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-08 05:28:57,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:28:57,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1966226058, now seen corresponding path program 1 times [2025-02-08 05:28:57,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:28:57,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070802312] [2025-02-08 05:28:57,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:28:57,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:28:57,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-08 05:28:57,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-08 05:28:57,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:28:57,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:28:57,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:28:57,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:28:57,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070802312] [2025-02-08 05:28:57,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070802312] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:28:57,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:28:57,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:28:57,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986345336] [2025-02-08 05:28:57,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:28:57,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:28:57,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:28:57,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:28:57,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:28:57,653 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 162 [2025-02-08 05:28:57,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 153 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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) [2025-02-08 05:28:57,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:28:57,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 162 [2025-02-08 05:28:57,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:28:57,734 INFO L124 PetriNetUnfolderBase]: 21/250 cut-off events. [2025-02-08 05:28:57,734 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-02-08 05:28:57,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 250 events. 21/250 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 614 event pairs, 2 based on Foata normal form. 9/235 useless extension candidates. Maximal degree in co-relation 205. Up to 32 conditions per place. [2025-02-08 05:28:57,738 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 9 selfloop transitions, 6 changer transitions 15/150 dead transitions. [2025-02-08 05:28:57,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 150 transitions, 344 flow [2025-02-08 05:28:57,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:28:57,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:28:57,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2025-02-08 05:28:57,754 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9156378600823045 [2025-02-08 05:28:57,756 INFO L175 Difference]: Start difference. First operand has 151 places, 153 transitions, 312 flow. Second operand 3 states and 445 transitions. [2025-02-08 05:28:57,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 150 transitions, 344 flow [2025-02-08 05:28:57,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 150 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:28:57,768 INFO L231 Difference]: Finished difference. Result has 148 places, 135 transitions, 311 flow [2025-02-08 05:28:57,771 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=148, PETRI_TRANSITIONS=135} [2025-02-08 05:28:57,774 INFO L279 CegarLoopForPetriNet]: 151 programPoint places, -3 predicate places. [2025-02-08 05:28:57,774 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 135 transitions, 311 flow [2025-02-08 05:28:57,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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) [2025-02-08 05:28:57,775 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:28:57,775 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:28:57,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:28:57,776 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-08 05:28:57,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:28:57,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1879371790, now seen corresponding path program 1 times [2025-02-08 05:28:57,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:28:57,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435192308] [2025-02-08 05:28:57,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:28:57,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:28:57,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-02-08 05:28:57,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-02-08 05:28:57,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:28:57,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:28:57,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:28:57,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:28:57,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435192308] [2025-02-08 05:28:57,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435192308] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:28:57,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:28:57,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:28:57,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414345742] [2025-02-08 05:28:57,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:28:57,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:28:57,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:28:57,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:28:57,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:28:57,937 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 162 [2025-02-08 05:28:57,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 135 transitions, 311 flow. Second operand has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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) [2025-02-08 05:28:57,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:28:57,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 162 [2025-02-08 05:28:57,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:28:58,012 INFO L124 PetriNetUnfolderBase]: 35/288 cut-off events. [2025-02-08 05:28:58,012 INFO L125 PetriNetUnfolderBase]: For 97/119 co-relation queries the response was YES. [2025-02-08 05:28:58,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 288 events. 35/288 cut-off events. For 97/119 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 907 event pairs, 6 based on Foata normal form. 1/259 useless extension candidates. Maximal degree in co-relation 58. Up to 55 conditions per place. [2025-02-08 05:28:58,017 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 11 selfloop transitions, 7 changer transitions 0/140 dead transitions. [2025-02-08 05:28:58,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 140 transitions, 367 flow [2025-02-08 05:28:58,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:28:58,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:28:58,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 443 transitions. [2025-02-08 05:28:58,024 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.911522633744856 [2025-02-08 05:28:58,024 INFO L175 Difference]: Start difference. First operand has 148 places, 135 transitions, 311 flow. Second operand 3 states and 443 transitions. [2025-02-08 05:28:58,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 140 transitions, 367 flow [2025-02-08 05:28:58,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 140 transitions, 351 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:28:58,028 INFO L231 Difference]: Finished difference. Result has 135 places, 140 transitions, 355 flow [2025-02-08 05:28:58,029 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=355, PETRI_PLACES=135, PETRI_TRANSITIONS=140} [2025-02-08 05:28:58,029 INFO L279 CegarLoopForPetriNet]: 151 programPoint places, -16 predicate places. [2025-02-08 05:28:58,029 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 140 transitions, 355 flow [2025-02-08 05:28:58,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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) [2025-02-08 05:28:58,030 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:28:58,030 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:28:58,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 05:28:58,031 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-08 05:28:58,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:28:58,032 INFO L85 PathProgramCache]: Analyzing trace with hash -996557311, now seen corresponding path program 1 times [2025-02-08 05:28:58,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:28:58,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981797375] [2025-02-08 05:28:58,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:28:58,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:28:58,078 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-02-08 05:28:58,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-02-08 05:28:58,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:28:58,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:28:58,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:28:58,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:28:58,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981797375] [2025-02-08 05:28:58,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981797375] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:28:58,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:28:58,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:28:58,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138503011] [2025-02-08 05:28:58,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:28:58,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:28:58,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:28:58,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:28:58,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:28:58,205 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 162 [2025-02-08 05:28:58,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 140 transitions, 355 flow. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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) [2025-02-08 05:28:58,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:28:58,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 162 [2025-02-08 05:28:58,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:28:58,260 INFO L124 PetriNetUnfolderBase]: 52/342 cut-off events. [2025-02-08 05:28:58,261 INFO L125 PetriNetUnfolderBase]: For 192/226 co-relation queries the response was YES. [2025-02-08 05:28:58,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 342 events. 52/342 cut-off events. For 192/226 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1229 event pairs, 5 based on Foata normal form. 2/311 useless extension candidates. Maximal degree in co-relation 271. Up to 72 conditions per place. [2025-02-08 05:28:58,263 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 13 selfloop transitions, 9 changer transitions 0/145 dead transitions. [2025-02-08 05:28:58,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 145 transitions, 423 flow [2025-02-08 05:28:58,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:28:58,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:28:58,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 438 transitions. [2025-02-08 05:28:58,266 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9012345679012346 [2025-02-08 05:28:58,266 INFO L175 Difference]: Start difference. First operand has 135 places, 140 transitions, 355 flow. Second operand 3 states and 438 transitions. [2025-02-08 05:28:58,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 145 transitions, 423 flow [2025-02-08 05:28:58,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 145 transitions, 405 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:28:58,273 INFO L231 Difference]: Finished difference. Result has 137 places, 145 transitions, 409 flow [2025-02-08 05:28:58,274 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=409, PETRI_PLACES=137, PETRI_TRANSITIONS=145} [2025-02-08 05:28:58,275 INFO L279 CegarLoopForPetriNet]: 151 programPoint places, -14 predicate places. [2025-02-08 05:28:58,275 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 145 transitions, 409 flow [2025-02-08 05:28:58,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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) [2025-02-08 05:28:58,275 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:28:58,276 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:28:58,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:28:58,276 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-08 05:28:58,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:28:58,277 INFO L85 PathProgramCache]: Analyzing trace with hash 155016963, now seen corresponding path program 1 times [2025-02-08 05:28:58,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:28:58,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218346556] [2025-02-08 05:28:58,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:28:58,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:28:58,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-02-08 05:28:58,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-02-08 05:28:58,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:28:58,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:28:58,319 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:28:58,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-02-08 05:28:58,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-02-08 05:28:58,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:28:58,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:28:58,371 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:28:58,372 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:28:58,372 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thread_function_dataraceErr1ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2025-02-08 05:28:58,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2025-02-08 05:28:58,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2025-02-08 05:28:58,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2025-02-08 05:28:58,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2025-02-08 05:28:58,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 9 remaining) [2025-02-08 05:28:58,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_function_dataraceErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2025-02-08 05:28:58,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_function_dataraceErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2025-02-08 05:28:58,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_function_dataraceErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2025-02-08 05:28:58,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 05:28:58,376 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-08 05:28:58,448 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 05:28:58,449 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 05:28:58,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 05:28:58 BasicIcfg [2025-02-08 05:28:58,454 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 05:28:58,454 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 05:28:58,454 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 05:28:58,454 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 05:28:58,455 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:28:57" (3/4) ... [2025-02-08 05:28:58,456 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-02-08 05:28:58,527 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 4. [2025-02-08 05:28:58,561 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 05:28:58,561 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 05:28:58,561 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 05:28:58,562 INFO L158 Benchmark]: Toolchain (without parser) took 2853.23ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 51.7MB in the end (delta: 55.1MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. [2025-02-08 05:28:58,563 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:28:58,563 INFO L158 Benchmark]: CACSL2BoogieTranslator took 767.71ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 70.0MB in the end (delta: 36.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-08 05:28:58,563 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.53ms. Allocated memory is still 142.6MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:28:58,563 INFO L158 Benchmark]: Boogie Preprocessor took 25.68ms. Allocated memory is still 142.6MB. Free memory was 67.9MB in the beginning and 65.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:28:58,564 INFO L158 Benchmark]: IcfgBuilder took 441.49ms. Allocated memory is still 142.6MB. Free memory was 65.8MB in the beginning and 50.1MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 05:28:58,564 INFO L158 Benchmark]: TraceAbstraction took 1445.73ms. Allocated memory is still 142.6MB. Free memory was 50.1MB in the beginning and 64.8MB in the end (delta: -14.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:28:58,564 INFO L158 Benchmark]: Witness Printer took 107.27ms. Allocated memory is still 142.6MB. Free memory was 64.8MB in the beginning and 51.7MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 05:28:58,565 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 767.71ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 70.0MB in the end (delta: 36.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.53ms. Allocated memory is still 142.6MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.68ms. Allocated memory is still 142.6MB. Free memory was 67.9MB in the beginning and 65.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 441.49ms. Allocated memory is still 142.6MB. Free memory was 65.8MB in the beginning and 50.1MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1445.73ms. Allocated memory is still 142.6MB. Free memory was 50.1MB in the beginning and 64.8MB in the end (delta: -14.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 107.27ms. Allocated memory is still 142.6MB. Free memory was 64.8MB in the beginning and 51.7MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1325]: Data race detected Data race detected The following path leads to a data race: [L1318] 0 int myglobal; VAL [myglobal=0] [L1319] 0 pthread_mutex_t mymutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [myglobal=0] [L1334] 0 pthread_t mythread; VAL [myglobal=0] [L1335] 0 int i; VAL [myglobal=0] [L1336] FCALL, FORK 0 pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0)) VAL [\old(arg)={0:0}, myglobal=0, mythread=-1] [L1322] 1 int i,j; VAL [\old(arg)={0:0}, arg={0:0}, myglobal=0] [L1323] 1 i=0 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1323] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1325] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1336] COND FALSE 0 !(pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0))) VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0, mythread=-1] [L1346] 0 i=0 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=0, mythread=-1] [L1346] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=0, mythread=-1] [L1348] EXPR 0 myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=0, mythread=-1] [L1348] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=1, mythread=-1] [L1325] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=1] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [1348] and C: j=myglobal [1325] - UnprovableResult [Line: 1348]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1354]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1348]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1355]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1336]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1328]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 182 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 103 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 8 mSDtfsCounter, 86 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=409occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 362 NumberOfCodeBlocks, 362 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 258 ConstructedInterpolants, 0 QuantifiedInterpolants, 264 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-02-08 05:28:58,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)