./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_14-funarg_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_14-funarg_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 f642c67113760bee92d5df6113328ab6bc786120281f498909848eae502de3ab --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:26:05,748 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:26:05,789 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-30 10:26:05,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:26:05,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:26:05,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:26:05,814 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:26:05,814 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:26:05,815 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:26:05,815 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:26:05,815 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:26:05,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:26:05,816 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:26:05,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:26:05,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:26:05,816 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:26:05,816 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:26:05,816 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:26:05,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:26:05,816 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:26:05,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:26:05,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:26:05,816 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-30 10:26:05,816 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:26:05,817 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:26:05,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:26:05,817 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:26:05,817 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:26:05,817 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:26:05,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:26:05,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:26:05,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:26:05,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:26:05,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:26:05,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:26:05,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:26:05,818 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:26:05,818 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:26:05,818 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:26:05,818 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:26:05,818 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:26:05,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:26:05,819 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:26:05,819 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:26:05,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:26:05,819 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 -> f642c67113760bee92d5df6113328ab6bc786120281f498909848eae502de3ab [2025-04-30 10:26:06,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:26:06,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:26:06,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:26:06,049 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:26:06,049 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:26:06,051 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_14-funarg_rc.i [2025-04-30 10:26:07,307 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3f286480/f3f668440dcf4b589c329a6a4154bdf7/FLAGc03ed1a53 [2025-04-30 10:26:07,593 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:26:07,597 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_14-funarg_rc.i [2025-04-30 10:26:07,614 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3f286480/f3f668440dcf4b589c329a6a4154bdf7/FLAGc03ed1a53 [2025-04-30 10:26:08,356 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3f286480/f3f668440dcf4b589c329a6a4154bdf7 [2025-04-30 10:26:08,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:26:08,359 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:26:08,360 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:26:08,360 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:26:08,363 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:26:08,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,367 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f512f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08, skipping insertion in model container [2025-04-30 10:26:08,367 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,396 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:26:08,702 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:26:08,724 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:26:08,782 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:26:08,821 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:26:08,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08 WrapperNode [2025-04-30 10:26:08,821 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:26:08,822 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:26:08,823 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:26:08,823 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:26:08,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,846 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,862 INFO L138 Inliner]: procedures = 263, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2025-04-30 10:26:08,863 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:26:08,863 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:26:08,863 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:26:08,863 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:26:08,868 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,877 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,881 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,882 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,883 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,883 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,886 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:26:08,887 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:26:08,887 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:26:08,887 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:26:08,888 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:26:08,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:26:08,916 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 10:26:08,919 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 10:26:08,935 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:26:08,935 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:26:08,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:26:08,935 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-30 10:26:08,935 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-30 10:26:08,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-30 10:26:08,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:26:08,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:26:08,936 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 10:26:09,048 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:26:09,049 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:26:09,166 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:26:09,167 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:26:09,184 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:26:09,185 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:26:09,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:26:09 BoogieIcfgContainer [2025-04-30 10:26:09,185 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:26:09,187 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:26:09,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:26:09,191 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:26:09,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:26:08" (1/3) ... [2025-04-30 10:26:09,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e21fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:26:09, skipping insertion in model container [2025-04-30 10:26:09,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (2/3) ... [2025-04-30 10:26:09,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e21fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:26:09, skipping insertion in model container [2025-04-30 10:26:09,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:26:09" (3/3) ... [2025-04-30 10:26:09,194 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_14-funarg_rc.i [2025-04-30 10:26:09,207 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:26:09,210 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_14-funarg_rc.i that has 2 procedures, 82 locations, 80 edges, 1 initial locations, 0 loop locations, and 4 error locations. [2025-04-30 10:26:09,210 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:26:09,252 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-30 10:26:09,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 81 transitions, 169 flow [2025-04-30 10:26:09,312 INFO L116 PetriNetUnfolderBase]: 0/80 cut-off events. [2025-04-30 10:26:09,314 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:26:09,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 80 events. 0/80 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-04-30 10:26:09,316 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 81 transitions, 169 flow [2025-04-30 10:26:09,318 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 75 transitions, 153 flow [2025-04-30 10:26:09,324 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:26:09,332 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;@2975ddf8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:26:09,332 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-30 10:26:09,340 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:26:09,340 INFO L116 PetriNetUnfolderBase]: 0/39 cut-off events. [2025-04-30 10:26:09,340 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:26:09,340 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:09,341 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] [2025-04-30 10:26:09,341 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 10:26:09,344 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:09,345 INFO L85 PathProgramCache]: Analyzing trace with hash -970110140, now seen corresponding path program 1 times [2025-04-30 10:26:09,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:09,350 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501983186] [2025-04-30 10:26:09,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:09,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:09,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-04-30 10:26:09,453 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-04-30 10:26:09,454 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:09,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:09,542 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 10:26:09,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:09,545 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501983186] [2025-04-30 10:26:09,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501983186] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:09,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:09,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:26:09,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368578301] [2025-04-30 10:26:09,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:09,553 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:26:09,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:09,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:26:09,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:26:09,602 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 81 [2025-04-30 10:26:09,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 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 10:26:09,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:09,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 81 [2025-04-30 10:26:09,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:09,703 INFO L116 PetriNetUnfolderBase]: 47/298 cut-off events. [2025-04-30 10:26:09,703 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:26:09,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 298 events. 47/298 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1298 event pairs, 12 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 385. Up to 82 conditions per place. [2025-04-30 10:26:09,706 INFO L140 encePairwiseOnDemand]: 72/81 looper letters, 20 selfloop transitions, 6 changer transitions 1/85 dead transitions. [2025-04-30 10:26:09,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 85 transitions, 227 flow [2025-04-30 10:26:09,708 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:26:09,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:26:09,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2025-04-30 10:26:09,718 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9012345679012346 [2025-04-30 10:26:09,720 INFO L175 Difference]: Start difference. First operand has 79 places, 75 transitions, 153 flow. Second operand 3 states and 219 transitions. [2025-04-30 10:26:09,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 85 transitions, 227 flow [2025-04-30 10:26:09,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 85 transitions, 226 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:26:09,742 INFO L231 Difference]: Finished difference. Result has 81 places, 79 transitions, 198 flow [2025-04-30 10:26:09,745 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=81, PETRI_TRANSITIONS=79} [2025-04-30 10:26:09,747 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 2 predicate places. [2025-04-30 10:26:09,748 INFO L485 AbstractCegarLoop]: Abstraction has has 81 places, 79 transitions, 198 flow [2025-04-30 10:26:09,748 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 10:26:09,748 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:09,748 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] [2025-04-30 10:26:09,748 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:26:09,749 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 10:26:09,749 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:09,749 INFO L85 PathProgramCache]: Analyzing trace with hash 213306631, now seen corresponding path program 1 times [2025-04-30 10:26:09,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:09,749 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318050468] [2025-04-30 10:26:09,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:09,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:09,771 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-04-30 10:26:09,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-04-30 10:26:09,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:09,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:09,825 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 10:26:09,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:09,825 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318050468] [2025-04-30 10:26:09,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318050468] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:09,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:09,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:26:09,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009557186] [2025-04-30 10:26:09,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:09,830 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:26:09,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:09,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:26:09,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:26:09,854 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 81 [2025-04-30 10:26:09,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 79 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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 10:26:09,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:09,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 81 [2025-04-30 10:26:09,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:09,937 INFO L116 PetriNetUnfolderBase]: 73/372 cut-off events. [2025-04-30 10:26:09,937 INFO L117 PetriNetUnfolderBase]: For 71/73 co-relation queries the response was YES. [2025-04-30 10:26:09,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 372 events. 73/372 cut-off events. For 71/73 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1771 event pairs, 30 based on Foata normal form. 2/352 useless extension candidates. Maximal degree in co-relation 590. Up to 129 conditions per place. [2025-04-30 10:26:09,941 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 18 selfloop transitions, 5 changer transitions 5/88 dead transitions. [2025-04-30 10:26:09,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 88 transitions, 280 flow [2025-04-30 10:26:09,942 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:26:09,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:26:09,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2025-04-30 10:26:09,943 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9012345679012346 [2025-04-30 10:26:09,943 INFO L175 Difference]: Start difference. First operand has 81 places, 79 transitions, 198 flow. Second operand 3 states and 219 transitions. [2025-04-30 10:26:09,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 88 transitions, 280 flow [2025-04-30 10:26:09,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 88 transitions, 264 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:26:09,947 INFO L231 Difference]: Finished difference. Result has 83 places, 80 transitions, 218 flow [2025-04-30 10:26:09,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=83, PETRI_TRANSITIONS=80} [2025-04-30 10:26:09,948 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2025-04-30 10:26:09,948 INFO L485 AbstractCegarLoop]: Abstraction has has 83 places, 80 transitions, 218 flow [2025-04-30 10:26:09,948 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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 10:26:09,948 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:09,948 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] [2025-04-30 10:26:09,949 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:26:09,949 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:09,949 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:09,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1794291401, now seen corresponding path program 1 times [2025-04-30 10:26:09,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:09,949 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830571040] [2025-04-30 10:26:09,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:09,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:09,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-04-30 10:26:09,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-04-30 10:26:09,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:09,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:26:09,982 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:26:09,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-04-30 10:26:09,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-04-30 10:26:09,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:09,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:26:10,020 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-30 10:26:10,022 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:26:10,023 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2025-04-30 10:26:10,024 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2025-04-30 10:26:10,024 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-04-30 10:26:10,024 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2025-04-30 10:26:10,024 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2025-04-30 10:26:10,025 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2025-04-30 10:26:10,025 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2025-04-30 10:26:10,025 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:26:10,025 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-30 10:26:10,063 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:26:10,063 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:26:10,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:26:10 BasicIcfg [2025-04-30 10:26:10,068 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:26:10,069 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:26:10,069 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:26:10,069 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:26:10,069 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:26:09" (3/4) ... [2025-04-30 10:26:10,070 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-04-30 10:26:10,110 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 1. [2025-04-30 10:26:10,139 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:26:10,139 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:26:10,139 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:26:10,140 INFO L158 Benchmark]: Toolchain (without parser) took 1780.16ms. Allocated memory is still 167.8MB. Free memory was 128.6MB in the beginning and 84.5MB in the end (delta: 44.0MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. [2025-04-30 10:26:10,141 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 192.9MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:26:10,141 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.77ms. Allocated memory is still 167.8MB. Free memory was 128.6MB in the beginning and 97.8MB in the end (delta: 30.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-30 10:26:10,141 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.34ms. Allocated memory is still 167.8MB. Free memory was 97.8MB in the beginning and 95.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:26:10,141 INFO L158 Benchmark]: Boogie Preprocessor took 23.14ms. Allocated memory is still 167.8MB. Free memory was 95.6MB in the beginning and 94.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:26:10,141 INFO L158 Benchmark]: RCFGBuilder took 298.51ms. Allocated memory is still 167.8MB. Free memory was 94.4MB in the beginning and 79.6MB in the end (delta: 14.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:26:10,141 INFO L158 Benchmark]: TraceAbstraction took 880.85ms. Allocated memory is still 167.8MB. Free memory was 78.9MB in the beginning and 92.1MB in the end (delta: -13.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:26:10,142 INFO L158 Benchmark]: Witness Printer took 70.50ms. Allocated memory is still 167.8MB. Free memory was 92.1MB in the beginning and 84.5MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:26:10,144 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 192.9MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 461.77ms. Allocated memory is still 167.8MB. Free memory was 128.6MB in the beginning and 97.8MB in the end (delta: 30.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.34ms. Allocated memory is still 167.8MB. Free memory was 97.8MB in the beginning and 95.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.14ms. Allocated memory is still 167.8MB. Free memory was 95.6MB in the beginning and 94.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 298.51ms. Allocated memory is still 167.8MB. Free memory was 94.4MB in the beginning and 79.6MB in the end (delta: 14.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 880.85ms. Allocated memory is still 167.8MB. Free memory was 78.9MB in the beginning and 92.1MB in the end (delta: -13.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 70.50ms. Allocated memory is still 167.8MB. Free memory was 92.1MB in the beginning and 84.5MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 934]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, myglobal=0] [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L920] 0 pthread_mutex_t mutex3 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=0] [L931] 0 pthread_t id; VAL [mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=0] [L932] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\at(arg, Pre)={0:0}, id=-1, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=0] [L923] EXPR 1 myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=0] [L923] 1 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=1] [L923] 1 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=1] [L934] 0 printf("myglobal equals %d\n",myglobal) VAL [\at(arg, Pre)={0:0}, arg={0:0}, id=-1, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=1] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [923] and C: printf("myglobal equals %d\n",myglobal) [934] - UnprovableResult [Line: 937]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: 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: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: 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, 100 locations, 99 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: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 6 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 0.1s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 10:26:10,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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)