./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_rc.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 c11b7127fb2beec6d5e726c9468c73fdf6ccc05ef40eceb17d287e75d34e535a --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:25:57,631 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:25:57,680 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-30 10:25:57,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:25:57,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:25:57,697 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:25:57,698 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:25:57,698 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:25:57,699 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:25:57,699 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:25:57,699 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:25:57,699 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:25:57,700 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:25:57,700 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:25:57,700 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:25:57,700 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:25:57,700 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:25:57,700 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:25:57,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:25:57,701 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:25:57,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:25:57,701 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:25:57,701 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-30 10:25:57,701 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:25:57,701 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:25:57,702 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:25:57,702 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:25:57,702 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:25:57,702 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:25:57,702 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:25:57,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:25:57,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:25:57,702 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:25:57,702 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:25:57,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:25:57,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:25:57,702 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:25:57,703 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:25:57,703 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:25:57,703 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:25:57,703 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:25:57,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:25:57,703 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:25:57,703 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:25:57,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:25:57,704 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/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 -> c11b7127fb2beec6d5e726c9468c73fdf6ccc05ef40eceb17d287e75d34e535a [2025-04-30 10:25:57,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:25:57,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:25:57,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:25:57,949 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:25:57,949 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:25:57,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_rc.i [2025-04-30 10:25:59,294 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0514523f/07e7808d31c14e0cae1f24dad8c1b85c/FLAG8fec41c01 [2025-04-30 10:25:59,512 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:25:59,512 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_rc.i [2025-04-30 10:25:59,525 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0514523f/07e7808d31c14e0cae1f24dad8c1b85c/FLAG8fec41c01 [2025-04-30 10:26:00,495 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0514523f/07e7808d31c14e0cae1f24dad8c1b85c [2025-04-30 10:26:00,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:26:00,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:26:00,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:26:00,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:26:00,504 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:26:00,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,505 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5efa7a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00, skipping insertion in model container [2025-04-30 10:26:00,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,536 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:26:00,799 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:26:00,810 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:26:00,850 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:26:00,890 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:26:00,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00 WrapperNode [2025-04-30 10:26:00,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:26:00,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:26:00,893 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:26:00,893 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:26:00,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,908 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,922 INFO L138 Inliner]: procedures = 266, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2025-04-30 10:26:00,922 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:26:00,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:26:00,923 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:26:00,923 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:26:00,927 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,940 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,941 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,942 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,943 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,944 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,946 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:26:00,947 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:26:00,947 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:26:00,947 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:26:00,948 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:26:00,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:26:00,979 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) [2025-04-30 10:26:00,982 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 [2025-04-30 10:26:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:26:01,001 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:26:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:26:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-30 10:26:01,002 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-30 10:26:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-30 10:26:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:26:01,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:26:01,003 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:26:01,091 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:26:01,092 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:26:01,199 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:26:01,199 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:26:01,216 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:26:01,216 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:26:01,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:26:01 BoogieIcfgContainer [2025-04-30 10:26:01,217 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:26:01,218 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:26:01,218 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:26:01,221 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:26:01,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:26:00" (1/3) ... [2025-04-30 10:26:01,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49965ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:26:01, skipping insertion in model container [2025-04-30 10:26:01,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (2/3) ... [2025-04-30 10:26:01,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49965ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:26:01, skipping insertion in model container [2025-04-30 10:26:01,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:26:01" (3/3) ... [2025-04-30 10:26:01,223 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_06-ps_rc.i [2025-04-30 10:26:01,232 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:26:01,234 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_06-ps_rc.i that has 2 procedures, 74 locations, 75 edges, 1 initial locations, 0 loop locations, and 4 error locations. [2025-04-30 10:26:01,234 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:26:01,279 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-30 10:26:01,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 76 transitions, 156 flow [2025-04-30 10:26:01,343 INFO L116 PetriNetUnfolderBase]: 3/75 cut-off events. [2025-04-30 10:26:01,347 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:26:01,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2025-04-30 10:26:01,349 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 76 transitions, 156 flow [2025-04-30 10:26:01,351 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 75 transitions, 153 flow [2025-04-30 10:26:01,357 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:26:01,371 INFO L340 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;@56311a62, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:26:01,371 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-30 10:26:01,384 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:26:01,384 INFO L116 PetriNetUnfolderBase]: 0/36 cut-off events. [2025-04-30 10:26:01,385 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:26:01,385 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:01,385 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] [2025-04-30 10:26:01,386 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:01,390 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:01,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1104133764, now seen corresponding path program 1 times [2025-04-30 10:26:01,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:01,396 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380973508] [2025-04-30 10:26:01,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:01,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:01,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-04-30 10:26:01,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-30 10:26:01,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:01,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:01,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:01,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:01,609 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380973508] [2025-04-30 10:26:01,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380973508] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:01,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:01,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:26:01,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561053936] [2025-04-30 10:26:01,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:01,617 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:26:01,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:01,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:26:01,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:26:01,666 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 76 [2025-04-30 10:26:01,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 75 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2025-04-30 10:26:01,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:01,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 76 [2025-04-30 10:26:01,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:01,748 INFO L116 PetriNetUnfolderBase]: 41/249 cut-off events. [2025-04-30 10:26:01,749 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:26:01,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 249 events. 41/249 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1107 event pairs, 10 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 303. Up to 43 conditions per place. [2025-04-30 10:26:01,751 INFO L140 encePairwiseOnDemand]: 68/76 looper letters, 17 selfloop transitions, 6 changer transitions 0/85 dead transitions. [2025-04-30 10:26:01,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 85 transitions, 219 flow [2025-04-30 10:26:01,753 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:26:01,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:26:01,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2025-04-30 10:26:01,760 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9385964912280702 [2025-04-30 10:26:01,761 INFO L175 Difference]: Start difference. First operand has 76 places, 75 transitions, 153 flow. Second operand 3 states and 214 transitions. [2025-04-30 10:26:01,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 85 transitions, 219 flow [2025-04-30 10:26:01,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 85 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:26:01,769 INFO L231 Difference]: Finished difference. Result has 79 places, 81 transitions, 204 flow [2025-04-30 10:26:01,772 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=79, PETRI_TRANSITIONS=81} [2025-04-30 10:26:01,775 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, 3 predicate places. [2025-04-30 10:26:01,776 INFO L485 AbstractCegarLoop]: Abstraction has has 79 places, 81 transitions, 204 flow [2025-04-30 10:26:01,776 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2025-04-30 10:26:01,776 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:01,776 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] [2025-04-30 10:26:01,776 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:26:01,776 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:01,777 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:01,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1377797353, now seen corresponding path program 1 times [2025-04-30 10:26:01,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:01,777 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816607560] [2025-04-30 10:26:01,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:01,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:01,801 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-04-30 10:26:01,814 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-04-30 10:26:01,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:01,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:01,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:01,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:01,865 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816607560] [2025-04-30 10:26:01,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816607560] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:01,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:01,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:26:01,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818766224] [2025-04-30 10:26:01,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:01,866 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:26:01,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:01,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:26:01,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:26:01,885 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 76 [2025-04-30 10:26:01,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 81 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2025-04-30 10:26:01,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:01,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 76 [2025-04-30 10:26:01,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:01,954 INFO L116 PetriNetUnfolderBase]: 62/301 cut-off events. [2025-04-30 10:26:01,955 INFO L117 PetriNetUnfolderBase]: For 99/109 co-relation queries the response was YES. [2025-04-30 10:26:01,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 301 events. 62/301 cut-off events. For 99/109 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1481 event pairs, 16 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 487. Up to 93 conditions per place. [2025-04-30 10:26:01,957 INFO L140 encePairwiseOnDemand]: 70/76 looper letters, 16 selfloop transitions, 7 changer transitions 2/88 dead transitions. [2025-04-30 10:26:01,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 88 transitions, 276 flow [2025-04-30 10:26:01,957 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:26:01,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:26:01,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2025-04-30 10:26:01,958 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2025-04-30 10:26:01,958 INFO L175 Difference]: Start difference. First operand has 79 places, 81 transitions, 204 flow. Second operand 3 states and 209 transitions. [2025-04-30 10:26:01,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 88 transitions, 276 flow [2025-04-30 10:26:01,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 88 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:26:01,961 INFO L231 Difference]: Finished difference. Result has 81 places, 85 transitions, 246 flow [2025-04-30 10:26:01,961 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=81, PETRI_TRANSITIONS=85} [2025-04-30 10:26:01,961 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, 5 predicate places. [2025-04-30 10:26:01,961 INFO L485 AbstractCegarLoop]: Abstraction has has 81 places, 85 transitions, 246 flow [2025-04-30 10:26:01,962 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2025-04-30 10:26:01,962 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:01,962 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] [2025-04-30 10:26:01,962 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:26:01,962 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:01,962 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:01,963 INFO L85 PathProgramCache]: Analyzing trace with hash 789618290, now seen corresponding path program 1 times [2025-04-30 10:26:01,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:01,963 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632129856] [2025-04-30 10:26:01,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:01,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:01,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-04-30 10:26:01,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-04-30 10:26:01,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:01,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:02,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:02,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:02,023 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632129856] [2025-04-30 10:26:02,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632129856] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:02,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:02,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:26:02,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655959996] [2025-04-30 10:26:02,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:02,025 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:26:02,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:02,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:26:02,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:26:02,038 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 76 [2025-04-30 10:26:02,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 85 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2025-04-30 10:26:02,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:02,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 76 [2025-04-30 10:26:02,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:02,076 INFO L116 PetriNetUnfolderBase]: 43/304 cut-off events. [2025-04-30 10:26:02,076 INFO L117 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2025-04-30 10:26:02,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 304 events. 43/304 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1484 event pairs, 16 based on Foata normal form. 3/278 useless extension candidates. Maximal degree in co-relation 462. Up to 58 conditions per place. [2025-04-30 10:26:02,081 INFO L140 encePairwiseOnDemand]: 72/76 looper letters, 11 selfloop transitions, 2 changer transitions 3/88 dead transitions. [2025-04-30 10:26:02,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 88 transitions, 284 flow [2025-04-30 10:26:02,082 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:26:02,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:26:02,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 203 transitions. [2025-04-30 10:26:02,083 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8903508771929824 [2025-04-30 10:26:02,083 INFO L175 Difference]: Start difference. First operand has 81 places, 85 transitions, 246 flow. Second operand 3 states and 203 transitions. [2025-04-30 10:26:02,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 88 transitions, 284 flow [2025-04-30 10:26:02,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 88 transitions, 270 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:26:02,085 INFO L231 Difference]: Finished difference. Result has 82 places, 85 transitions, 242 flow [2025-04-30 10:26:02,085 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=82, PETRI_TRANSITIONS=85} [2025-04-30 10:26:02,086 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, 6 predicate places. [2025-04-30 10:26:02,086 INFO L485 AbstractCegarLoop]: Abstraction has has 82 places, 85 transitions, 242 flow [2025-04-30 10:26:02,086 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2025-04-30 10:26:02,086 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:02,086 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] [2025-04-30 10:26:02,086 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:26:02,087 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:02,087 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:02,087 INFO L85 PathProgramCache]: Analyzing trace with hash 750473104, now seen corresponding path program 1 times [2025-04-30 10:26:02,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:02,087 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069024080] [2025-04-30 10:26:02,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:02,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:02,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-04-30 10:26:02,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-04-30 10:26:02,098 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:02,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:02,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:02,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:02,128 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069024080] [2025-04-30 10:26:02,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069024080] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:02,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:02,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:26:02,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374820248] [2025-04-30 10:26:02,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:02,128 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:26:02,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:02,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:26:02,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:26:02,145 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 76 [2025-04-30 10:26:02,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 85 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2025-04-30 10:26:02,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:02,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 76 [2025-04-30 10:26:02,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:02,187 INFO L116 PetriNetUnfolderBase]: 75/400 cut-off events. [2025-04-30 10:26:02,187 INFO L117 PetriNetUnfolderBase]: For 151/157 co-relation queries the response was YES. [2025-04-30 10:26:02,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 751 conditions, 400 events. 75/400 cut-off events. For 151/157 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2154 event pairs, 17 based on Foata normal form. 3/385 useless extension candidates. Maximal degree in co-relation 713. Up to 107 conditions per place. [2025-04-30 10:26:02,189 INFO L140 encePairwiseOnDemand]: 70/76 looper letters, 16 selfloop transitions, 8 changer transitions 8/94 dead transitions. [2025-04-30 10:26:02,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 94 transitions, 337 flow [2025-04-30 10:26:02,190 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:26:02,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:26:02,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2025-04-30 10:26:02,190 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9122807017543859 [2025-04-30 10:26:02,190 INFO L175 Difference]: Start difference. First operand has 82 places, 85 transitions, 242 flow. Second operand 3 states and 208 transitions. [2025-04-30 10:26:02,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 94 transitions, 337 flow [2025-04-30 10:26:02,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 94 transitions, 332 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-04-30 10:26:02,193 INFO L231 Difference]: Finished difference. Result has 85 places, 85 transitions, 278 flow [2025-04-30 10:26:02,193 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=85, PETRI_TRANSITIONS=85} [2025-04-30 10:26:02,194 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, 9 predicate places. [2025-04-30 10:26:02,194 INFO L485 AbstractCegarLoop]: Abstraction has has 85 places, 85 transitions, 278 flow [2025-04-30 10:26:02,194 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2025-04-30 10:26:02,194 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:02,194 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] [2025-04-30 10:26:02,194 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-30 10:26:02,194 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:02,195 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:02,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1229102753, now seen corresponding path program 1 times [2025-04-30 10:26:02,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:02,195 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085292723] [2025-04-30 10:26:02,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:02,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:02,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-04-30 10:26:02,214 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-04-30 10:26:02,214 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:02,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:26:02,214 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:26:02,219 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-04-30 10:26:02,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-04-30 10:26:02,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:02,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:26:02,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-30 10:26:02,249 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:26:02,250 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2025-04-30 10:26:02,251 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2025-04-30 10:26:02,251 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-04-30 10:26:02,251 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2025-04-30 10:26:02,251 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2025-04-30 10:26:02,251 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2025-04-30 10:26:02,252 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2025-04-30 10:26:02,252 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-30 10:26:02,252 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-04-30 10:26:02,288 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:26:02,288 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:26:02,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:26:02 BasicIcfg [2025-04-30 10:26:02,291 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:26:02,292 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:26:02,292 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:26:02,292 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:26:02,293 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:26:01" (3/4) ... [2025-04-30 10:26:02,293 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-04-30 10:26:02,328 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 3. [2025-04-30 10:26:02,354 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:26:02,354 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:26:02,354 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:26:02,355 INFO L158 Benchmark]: Toolchain (without parser) took 1857.32ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 53.9MB in the end (delta: 77.0MB). Peak memory consumption was 74.3MB. Max. memory is 16.1GB. [2025-04-30 10:26:02,355 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 201.3MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:26:02,355 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.81ms. Allocated memory is still 167.8MB. Free memory was 130.4MB in the beginning and 99.7MB in the end (delta: 30.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-30 10:26:02,355 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.19ms. Allocated memory is still 167.8MB. Free memory was 99.7MB in the beginning and 97.4MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:26:02,356 INFO L158 Benchmark]: Boogie Preprocessor took 23.62ms. Allocated memory is still 167.8MB. Free memory was 97.4MB in the beginning and 96.5MB in the end (delta: 899.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:26:02,356 INFO L158 Benchmark]: RCFGBuilder took 269.75ms. Allocated memory is still 167.8MB. Free memory was 96.5MB in the beginning and 82.1MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:26:02,356 INFO L158 Benchmark]: TraceAbstraction took 1073.45ms. Allocated memory is still 167.8MB. Free memory was 81.6MB in the beginning and 61.6MB in the end (delta: 20.0MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2025-04-30 10:26:02,356 INFO L158 Benchmark]: Witness Printer took 62.55ms. Allocated memory is still 167.8MB. Free memory was 61.6MB in the beginning and 53.9MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:26:02,357 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 201.3MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.81ms. Allocated memory is still 167.8MB. Free memory was 130.4MB in the beginning and 99.7MB in the end (delta: 30.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.19ms. Allocated memory is still 167.8MB. Free memory was 99.7MB in the beginning and 97.4MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.62ms. Allocated memory is still 167.8MB. Free memory was 97.4MB in the beginning and 96.5MB in the end (delta: 899.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 269.75ms. Allocated memory is still 167.8MB. Free memory was 96.5MB in the beginning and 82.1MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1073.45ms. Allocated memory is still 167.8MB. Free memory was 81.6MB in the beginning and 61.6MB in the end (delta: 20.0MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * Witness Printer took 62.55ms. Allocated memory is still 167.8MB. Free memory was 61.6MB in the beginning and 53.9MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 946]: Data race detected Data race detected The following path leads to a data race: [L928] 0 int glob; VAL [glob=0] [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, m={1:0}] [L930] 0 pthread_mutex_t n = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, m={1:0}, n={2:0}] [L938] 0 int i = __VERIFIER_nondet_int(); VAL [glob=0, i=1, m={1:0}, n={2:0}] [L939] 0 pthread_t id; VAL [glob=0, i=1, m={1:0}, n={2:0}] [L940] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\at(arg, Pre)={0:0}, glob=0, i=1, id=-1, m={1:0}, n={2:0}] [L942] COND TRUE 0 \read(i) VAL [\at(arg, Pre)={0:0}, glob=0, i=1, id=-1, m={1:0}, n={2:0}] [L945] COND TRUE 0 \read(i) VAL [\at(arg, Pre)={0:0}, glob=0, i=1, id=-1, m={1:0}, n={2:0}] [L933] 1 glob++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, glob=0, m={1:0}, n={2:0}] [L946] 0 glob++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, glob=0, i=1, id=-1, m={1:0}, n={2:0}] [L933] 1 glob++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, glob=1, m={1:0}, n={2:0}] [L946] 0 glob++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, glob=1, i=1, id=-1, m={1:0}, n={2:0}] Now there is a data race on ~glob~0 between C: glob++ [933] and C: glob++ [946] - UnprovableResult [Line: 946]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 940]: 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: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 933]: 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, 94 locations, 95 edges, 7 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: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120 IncrementalHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 28 mSDtfsCounter, 120 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=4, InterpolantAutomatonStates: 12, 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, 0.2s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 166 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2025-04-30 10:26:02,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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)