./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 735b3cc8 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 ../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.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 36c3c3dc239d6629a8ba20aca175d79c45880ab21458cd8ebdaac3a8ef359066 --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 01:33:18,213 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 01:33:18,269 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-14 01:33:18,273 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 01:33:18,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 01:33:18,294 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 01:33:18,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 01:33:18,295 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 01:33:18,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 01:33:18,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 01:33:18,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 01:33:18,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 01:33:18,297 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 01:33:18,297 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 01:33:18,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 01:33:18,298 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 01:33:18,298 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 01:33:18,298 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 01:33:18,298 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 01:33:18,298 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 01:33:18,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 01:33:18,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 01:33:18,298 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-14 01:33:18,298 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-14 01:33:18,298 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 01:33:18,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 01:33:18,298 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 01:33:18,298 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 01:33:18,299 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 01:33:18,299 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 01:33:18,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 01:33:18,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:33:18,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 01:33:18,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 01:33:18,299 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 01:33:18,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 01:33:18,300 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 01:33:18,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 01:33:18,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 01:33:18,300 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 01:33:18,300 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 01:33:18,300 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 01:33:18,300 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 -> 36c3c3dc239d6629a8ba20aca175d79c45880ab21458cd8ebdaac3a8ef359066 [2025-03-14 01:33:18,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 01:33:18,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 01:33:18,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 01:33:18,608 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 01:33:18,608 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 01:33:18,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2025-03-14 01:33:19,756 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05dd65738/776ffa07153249d7987fe1dd212de047/FLAG20ccb3c19 [2025-03-14 01:33:20,026 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 01:33:20,028 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2025-03-14 01:33:20,038 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05dd65738/776ffa07153249d7987fe1dd212de047/FLAG20ccb3c19 [2025-03-14 01:33:20,324 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05dd65738/776ffa07153249d7987fe1dd212de047 [2025-03-14 01:33:20,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 01:33:20,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 01:33:20,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 01:33:20,328 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 01:33:20,331 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 01:33:20,332 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:33:20" (1/1) ... [2025-03-14 01:33:20,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a5f9ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:20, skipping insertion in model container [2025-03-14 01:33:20,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:33:20" (1/1) ... [2025-03-14 01:33:20,351 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 01:33:20,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:33:20,615 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 01:33:20,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:33:20,688 INFO L204 MainTranslator]: Completed translation [2025-03-14 01:33:20,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:20 WrapperNode [2025-03-14 01:33:20,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 01:33:20,690 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 01:33:20,690 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 01:33:20,690 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 01:33:20,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:20" (1/1) ... [2025-03-14 01:33:20,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:20" (1/1) ... [2025-03-14 01:33:20,733 INFO L138 Inliner]: procedures = 168, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 168 [2025-03-14 01:33:20,733 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 01:33:20,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 01:33:20,734 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 01:33:20,734 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 01:33:20,740 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:20" (1/1) ... [2025-03-14 01:33:20,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:20" (1/1) ... [2025-03-14 01:33:20,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:20" (1/1) ... [2025-03-14 01:33:20,749 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:20" (1/1) ... [2025-03-14 01:33:20,754 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:20" (1/1) ... [2025-03-14 01:33:20,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:20" (1/1) ... [2025-03-14 01:33:20,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:20" (1/1) ... [2025-03-14 01:33:20,760 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:20" (1/1) ... [2025-03-14 01:33:20,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 01:33:20,762 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 01:33:20,763 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 01:33:20,763 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 01:33:20,764 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:20" (1/1) ... [2025-03-14 01:33:20,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:33:20,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:33:20,797 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) [2025-03-14 01:33:20,799 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 [2025-03-14 01:33:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-14 01:33:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 01:33:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 01:33:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-03-14 01:33:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-03-14 01:33:20,817 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-14 01:33:20,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 01:33:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 01:33:20,818 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 01:33:20,911 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 01:33:20,912 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 01:33:21,080 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 01:33:21,081 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 01:33:21,081 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 01:33:21,100 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 01:33:21,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:33:21 BoogieIcfgContainer [2025-03-14 01:33:21,101 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 01:33:21,103 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 01:33:21,103 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 01:33:21,108 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 01:33:21,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 01:33:20" (1/3) ... [2025-03-14 01:33:21,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527024a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:33:21, skipping insertion in model container [2025-03-14 01:33:21,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:20" (2/3) ... [2025-03-14 01:33:21,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527024a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:33:21, skipping insertion in model container [2025-03-14 01:33:21,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:33:21" (3/3) ... [2025-03-14 01:33:21,110 INFO L128 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2025-03-14 01:33:21,121 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 01:33:21,122 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG condvar_spurious_wakeup.i that has 2 procedures, 174 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-03-14 01:33:21,123 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 01:33:21,168 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-14 01:33:21,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 176 transitions, 359 flow [2025-03-14 01:33:21,260 INFO L124 PetriNetUnfolderBase]: 3/175 cut-off events. [2025-03-14 01:33:21,262 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:33:21,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 175 events. 3/175 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2025-03-14 01:33:21,265 INFO L82 GeneralOperation]: Start removeDead. Operand has 177 places, 176 transitions, 359 flow [2025-03-14 01:33:21,268 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 172 places, 171 transitions, 345 flow [2025-03-14 01:33:21,275 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:33:21,286 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@693f3a34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:33:21,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-14 01:33:21,324 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:33:21,324 INFO L124 PetriNetUnfolderBase]: 0/153 cut-off events. [2025-03-14 01:33:21,325 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:33:21,325 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:33:21,325 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:33:21,326 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-14 01:33:21,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:33:21,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1001987932, now seen corresponding path program 1 times [2025-03-14 01:33:21,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:33:21,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544489337] [2025-03-14 01:33:21,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:33:21,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:33:21,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-03-14 01:33:21,475 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-03-14 01:33:21,475 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:33:21,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:33:21,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:33:21,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:33:21,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544489337] [2025-03-14 01:33:21,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544489337] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:33:21,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:33:21,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:33:21,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001413505] [2025-03-14 01:33:21,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:33:21,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:33:21,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:33:21,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:33:21,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:33:21,732 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 176 [2025-03-14 01:33:21,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 171 transitions, 345 flow. Second operand has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 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) [2025-03-14 01:33:21,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:33:21,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 176 [2025-03-14 01:33:21,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:33:21,822 INFO L124 PetriNetUnfolderBase]: 24/281 cut-off events. [2025-03-14 01:33:21,822 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:33:21,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 281 events. 24/281 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 632 event pairs, 6 based on Foata normal form. 10/269 useless extension candidates. Maximal degree in co-relation 198. Up to 34 conditions per place. [2025-03-14 01:33:21,826 INFO L140 encePairwiseOnDemand]: 169/176 looper letters, 13 selfloop transitions, 4 changer transitions 1/175 dead transitions. [2025-03-14 01:33:21,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 175 transitions, 389 flow [2025-03-14 01:33:21,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:33:21,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:33:21,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 506 transitions. [2025-03-14 01:33:21,838 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2025-03-14 01:33:21,839 INFO L175 Difference]: Start difference. First operand has 172 places, 171 transitions, 345 flow. Second operand 3 states and 506 transitions. [2025-03-14 01:33:21,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 175 transitions, 389 flow [2025-03-14 01:33:21,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 175 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-14 01:33:21,846 INFO L231 Difference]: Finished difference. Result has 174 places, 171 transitions, 368 flow [2025-03-14 01:33:21,848 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=174, PETRI_TRANSITIONS=171} [2025-03-14 01:33:21,850 INFO L279 CegarLoopForPetriNet]: 172 programPoint places, 2 predicate places. [2025-03-14 01:33:21,851 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 171 transitions, 368 flow [2025-03-14 01:33:21,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 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) [2025-03-14 01:33:21,851 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:33:21,851 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:33:21,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 01:33:21,852 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-14 01:33:21,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:33:21,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1558370858, now seen corresponding path program 1 times [2025-03-14 01:33:21,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:33:21,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789109023] [2025-03-14 01:33:21,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:33:21,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:33:21,872 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-03-14 01:33:21,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-03-14 01:33:21,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:33:21,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:33:21,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:33:21,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:33:21,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789109023] [2025-03-14 01:33:21,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789109023] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:33:21,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:33:21,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:33:21,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110211159] [2025-03-14 01:33:21,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:33:21,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:33:21,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:33:21,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:33:21,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:33:22,006 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 176 [2025-03-14 01:33:22,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 171 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 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) [2025-03-14 01:33:22,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:33:22,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 176 [2025-03-14 01:33:22,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:33:22,059 INFO L124 PetriNetUnfolderBase]: 14/260 cut-off events. [2025-03-14 01:33:22,059 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-03-14 01:33:22,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 260 events. 14/260 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 490 event pairs, 4 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 209. Up to 23 conditions per place. [2025-03-14 01:33:22,062 INFO L140 encePairwiseOnDemand]: 172/176 looper letters, 8 selfloop transitions, 3 changer transitions 2/174 dead transitions. [2025-03-14 01:33:22,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 174 transitions, 404 flow [2025-03-14 01:33:22,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:33:22,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:33:22,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2025-03-14 01:33:22,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9564393939393939 [2025-03-14 01:33:22,066 INFO L175 Difference]: Start difference. First operand has 174 places, 171 transitions, 368 flow. Second operand 3 states and 505 transitions. [2025-03-14 01:33:22,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 174 transitions, 404 flow [2025-03-14 01:33:22,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 174 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:33:22,071 INFO L231 Difference]: Finished difference. Result has 176 places, 172 transitions, 382 flow [2025-03-14 01:33:22,072 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=382, PETRI_PLACES=176, PETRI_TRANSITIONS=172} [2025-03-14 01:33:22,072 INFO L279 CegarLoopForPetriNet]: 172 programPoint places, 4 predicate places. [2025-03-14 01:33:22,073 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 172 transitions, 382 flow [2025-03-14 01:33:22,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 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) [2025-03-14 01:33:22,074 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:33:22,074 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:33:22,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 01:33:22,075 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-14 01:33:22,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:33:22,075 INFO L85 PathProgramCache]: Analyzing trace with hash 375033304, now seen corresponding path program 1 times [2025-03-14 01:33:22,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:33:22,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633492784] [2025-03-14 01:33:22,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:33:22,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:33:22,105 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 152 statements into 1 equivalence classes. [2025-03-14 01:33:22,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 152 of 152 statements. [2025-03-14 01:33:22,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:33:22,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:33:22,130 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-14 01:33:22,139 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 152 statements into 1 equivalence classes. [2025-03-14 01:33:22,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 152 of 152 statements. [2025-03-14 01:33:22,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:33:22,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:33:22,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-14 01:33:22,225 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-14 01:33:22,226 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2025-03-14 01:33:22,227 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-03-14 01:33:22,227 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2025-03-14 01:33:22,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2025-03-14 01:33:22,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 01:33:22,228 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-14 01:33:22,299 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-14 01:33:22,300 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-14 01:33:22,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.03 01:33:22 BasicIcfg [2025-03-14 01:33:22,303 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-14 01:33:22,304 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-14 01:33:22,304 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-14 01:33:22,304 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-14 01:33:22,305 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:33:21" (3/4) ... [2025-03-14 01:33:22,305 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-14 01:33:22,366 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 2. [2025-03-14 01:33:22,400 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-14 01:33:22,401 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-14 01:33:22,401 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-14 01:33:22,403 INFO L158 Benchmark]: Toolchain (without parser) took 2074.84ms. Allocated memory is still 167.8MB. Free memory was 123.6MB in the beginning and 85.0MB in the end (delta: 38.6MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2025-03-14 01:33:22,403 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 201.3MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:33:22,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.40ms. Allocated memory is still 167.8MB. Free memory was 123.0MB in the beginning and 102.9MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-14 01:33:22,404 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.73ms. Allocated memory is still 167.8MB. Free memory was 102.9MB in the beginning and 100.9MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-14 01:33:22,405 INFO L158 Benchmark]: Boogie Preprocessor took 28.03ms. Allocated memory is still 167.8MB. Free memory was 100.9MB in the beginning and 99.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:33:22,405 INFO L158 Benchmark]: IcfgBuilder took 338.31ms. Allocated memory is still 167.8MB. Free memory was 99.6MB in the beginning and 80.6MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-14 01:33:22,406 INFO L158 Benchmark]: TraceAbstraction took 1200.33ms. Allocated memory is still 167.8MB. Free memory was 80.0MB in the beginning and 105.7MB in the end (delta: -25.7MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2025-03-14 01:33:22,406 INFO L158 Benchmark]: Witness Printer took 97.08ms. Allocated memory is still 167.8MB. Free memory was 105.7MB in the beginning and 85.0MB in the end (delta: 20.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-14 01:33:22,409 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 201.3MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.40ms. Allocated memory is still 167.8MB. Free memory was 123.0MB in the beginning and 102.9MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.73ms. Allocated memory is still 167.8MB. Free memory was 102.9MB in the beginning and 100.9MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.03ms. Allocated memory is still 167.8MB. Free memory was 100.9MB in the beginning and 99.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 338.31ms. Allocated memory is still 167.8MB. Free memory was 99.6MB in the beginning and 80.6MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1200.33ms. Allocated memory is still 167.8MB. Free memory was 80.0MB in the beginning and 105.7MB in the end (delta: -25.7MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. * Witness Printer took 97.08ms. Allocated memory is still 167.8MB. Free memory was 105.7MB in the beginning and 85.0MB in the end (delta: 20.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 714]: Data race detected Data race detected The following path leads to a data race: [L697] 0 pthread_mutex_t lock; VAL [lock={3:0}] [L698] 0 pthread_cond_t cond; VAL [lock={3:0}] [L699] 0 int x; VAL [lock={3:0}, x=0] [L709] 0 pthread_t t; VAL [lock={3:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [lock={3:0}, t=-1, x=0] [L713] 0 int i = 0; VAL [i=0, lock={3:0}, t=-1, x=0] [L713] COND TRUE 0 i <= 42 VAL [i=0, lock={3:0}, t=-1, x=0] [L714] 0 x = i VAL [i=0, lock={3:0}, t=-1, x=0] [L704] 1 x == 42 VAL [\old(arg)={0:0}, arg={0:0}, lock={3:0}, x=0] [L714] 0 x = i VAL [i=0, lock={3:0}, t=-1, x=0] Now there is a data race on ~x~0 between C: x == 42 [704] and C: x = i [714] - UnprovableResult [Line: 712]: 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: 704]: 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, 195 locations, 4 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: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 7 mSDtfsCounter, 43 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=382occurred 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, 0.3s InterpolantComputationTime, 441 NumberOfCodeBlocks, 441 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 291 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! [2025-03-14 01:33:22,423 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)