./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_47-fun_write.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/goblint-regression/04-mutex_47-fun_write.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 4349e9f780aa852bf667d29095b5aaef630c7e32a3c0068468fa5a88e5c63f46 --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 01:35:10,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 01:35:10,301 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-14 01:35:10,307 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 01:35:10,308 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 01:35:10,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 01:35:10,330 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 01:35:10,330 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 01:35:10,330 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 01:35:10,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 01:35:10,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 01:35:10,332 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 01:35:10,332 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 01:35:10,332 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 01:35:10,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 01:35:10,332 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 01:35:10,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 01:35:10,332 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 01:35:10,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 01:35:10,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 01:35:10,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 01:35:10,333 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 01:35:10,333 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-14 01:35:10,333 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-14 01:35:10,333 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 01:35:10,333 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 01:35:10,333 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 01:35:10,333 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 01:35:10,333 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 01:35:10,333 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 01:35:10,333 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 01:35:10,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:35:10,334 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 01:35:10,334 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 01:35:10,334 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 01:35:10,334 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 01:35:10,334 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 01:35:10,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 01:35:10,335 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 01:35:10,335 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 01:35:10,335 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 01:35:10,335 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 01:35:10,335 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 -> 4349e9f780aa852bf667d29095b5aaef630c7e32a3c0068468fa5a88e5c63f46 [2025-03-14 01:35:10,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 01:35:10,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 01:35:10,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 01:35:10,590 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 01:35:10,591 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 01:35:10,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_47-fun_write.i [2025-03-14 01:35:11,966 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ecffaa0d/854b38cbacb846008d44277b4521b5f1/FLAGc3fba3b55 [2025-03-14 01:35:12,239 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 01:35:12,239 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_47-fun_write.i [2025-03-14 01:35:12,252 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ecffaa0d/854b38cbacb846008d44277b4521b5f1/FLAGc3fba3b55 [2025-03-14 01:35:12,265 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ecffaa0d/854b38cbacb846008d44277b4521b5f1 [2025-03-14 01:35:12,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 01:35:12,269 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 01:35:12,270 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 01:35:12,270 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 01:35:12,273 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 01:35:12,273 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:35:12" (1/1) ... [2025-03-14 01:35:12,274 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7382e96d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:12, skipping insertion in model container [2025-03-14 01:35:12,274 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:35:12" (1/1) ... [2025-03-14 01:35:12,308 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 01:35:12,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:35:12,558 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 01:35:12,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:35:12,632 INFO L204 MainTranslator]: Completed translation [2025-03-14 01:35:12,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:12 WrapperNode [2025-03-14 01:35:12,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 01:35:12,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 01:35:12,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 01:35:12,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 01:35:12,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:12" (1/1) ... [2025-03-14 01:35:12,655 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:12" (1/1) ... [2025-03-14 01:35:12,670 INFO L138 Inliner]: procedures = 263, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2025-03-14 01:35:12,671 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 01:35:12,672 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 01:35:12,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 01:35:12,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 01:35:12,677 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:12" (1/1) ... [2025-03-14 01:35:12,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:12" (1/1) ... [2025-03-14 01:35:12,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:12" (1/1) ... [2025-03-14 01:35:12,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:12" (1/1) ... [2025-03-14 01:35:12,689 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:12" (1/1) ... [2025-03-14 01:35:12,690 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:12" (1/1) ... [2025-03-14 01:35:12,694 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:12" (1/1) ... [2025-03-14 01:35:12,695 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:12" (1/1) ... [2025-03-14 01:35:12,696 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 01:35:12,696 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 01:35:12,696 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 01:35:12,696 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 01:35:12,697 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:12" (1/1) ... [2025-03-14 01:35:12,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:35:12,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:35:12,728 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 01:35:12,734 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 01:35:12,749 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-14 01:35:12,749 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-14 01:35:12,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 01:35:12,749 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-14 01:35:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-14 01:35:12,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 01:35:12,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 01:35:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 01:35:12,750 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 01:35:12,842 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 01:35:12,843 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 01:35:12,938 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 01:35:12,939 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 01:35:12,939 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 01:35:12,960 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 01:35:12,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:35:12 BoogieIcfgContainer [2025-03-14 01:35:12,960 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 01:35:12,962 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 01:35:12,962 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 01:35:12,965 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 01:35:12,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 01:35:12" (1/3) ... [2025-03-14 01:35:12,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4caf2bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:35:12, skipping insertion in model container [2025-03-14 01:35:12,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:12" (2/3) ... [2025-03-14 01:35:12,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4caf2bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:35:12, skipping insertion in model container [2025-03-14 01:35:12,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:35:12" (3/3) ... [2025-03-14 01:35:12,967 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_47-fun_write.i [2025-03-14 01:35:12,976 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 01:35:12,977 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_47-fun_write.i that has 2 procedures, 64 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-03-14 01:35:12,977 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 01:35:13,019 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-14 01:35:13,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 63 transitions, 133 flow [2025-03-14 01:35:13,072 INFO L124 PetriNetUnfolderBase]: 0/62 cut-off events. [2025-03-14 01:35:13,073 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:35:13,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 62 events. 0/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-03-14 01:35:13,076 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 63 transitions, 133 flow [2025-03-14 01:35:13,078 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 57 transitions, 117 flow [2025-03-14 01:35:13,083 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:35:13,094 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;@68cf8e2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:35:13,094 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-14 01:35:13,101 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:35:13,102 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2025-03-14 01:35:13,102 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:35:13,102 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:13,102 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] [2025-03-14 01:35:13,103 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 01:35:13,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:13,108 INFO L85 PathProgramCache]: Analyzing trace with hash 522091177, now seen corresponding path program 1 times [2025-03-14 01:35:13,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:13,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567718041] [2025-03-14 01:35:13,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:13,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:13,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-14 01:35:13,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-14 01:35:13,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:13,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:13,311 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 01:35:13,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:13,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567718041] [2025-03-14 01:35:13,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567718041] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:13,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:13,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:35:13,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962821292] [2025-03-14 01:35:13,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:13,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:35:13,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:13,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:35:13,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:35:13,354 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 63 [2025-03-14 01:35:13,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 57 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 01:35:13,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:13,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 63 [2025-03-14 01:35:13,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:13,425 INFO L124 PetriNetUnfolderBase]: 18/157 cut-off events. [2025-03-14 01:35:13,425 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:35:13,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 157 events. 18/157 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 523 event pairs, 10 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 180. Up to 35 conditions per place. [2025-03-14 01:35:13,427 INFO L140 encePairwiseOnDemand]: 58/63 looper letters, 11 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2025-03-14 01:35:13,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 62 transitions, 157 flow [2025-03-14 01:35:13,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:35:13,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:35:13,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 172 transitions. [2025-03-14 01:35:13,436 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.91005291005291 [2025-03-14 01:35:13,437 INFO L175 Difference]: Start difference. First operand has 61 places, 57 transitions, 117 flow. Second operand 3 states and 172 transitions. [2025-03-14 01:35:13,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 62 transitions, 157 flow [2025-03-14 01:35:13,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 62 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-14 01:35:13,446 INFO L231 Difference]: Finished difference. Result has 64 places, 60 transitions, 146 flow [2025-03-14 01:35:13,447 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2025-03-14 01:35:13,452 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 3 predicate places. [2025-03-14 01:35:13,452 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 146 flow [2025-03-14 01:35:13,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 01:35:13,453 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:13,453 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] [2025-03-14 01:35:13,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 01:35:13,453 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 01:35:13,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:13,454 INFO L85 PathProgramCache]: Analyzing trace with hash 549494120, now seen corresponding path program 1 times [2025-03-14 01:35:13,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:13,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408505420] [2025-03-14 01:35:13,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:13,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:13,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-14 01:35:13,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-14 01:35:13,485 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:13,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:13,583 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 01:35:13,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:13,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408505420] [2025-03-14 01:35:13,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408505420] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:13,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:13,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:35:13,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684936755] [2025-03-14 01:35:13,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:13,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:35:13,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:13,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:35:13,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:35:13,613 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 63 [2025-03-14 01:35:13,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 01:35:13,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:13,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 63 [2025-03-14 01:35:13,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:13,793 INFO L124 PetriNetUnfolderBase]: 27/193 cut-off events. [2025-03-14 01:35:13,794 INFO L125 PetriNetUnfolderBase]: For 32/37 co-relation queries the response was YES. [2025-03-14 01:35:13,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 193 events. 27/193 cut-off events. For 32/37 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 755 event pairs, 16 based on Foata normal form. 1/177 useless extension candidates. Maximal degree in co-relation 274. Up to 56 conditions per place. [2025-03-14 01:35:13,795 INFO L140 encePairwiseOnDemand]: 58/63 looper letters, 14 selfloop transitions, 5 changer transitions 1/65 dead transitions. [2025-03-14 01:35:13,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 65 transitions, 198 flow [2025-03-14 01:35:13,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:35:13,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:35:13,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2025-03-14 01:35:13,802 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8624338624338624 [2025-03-14 01:35:13,802 INFO L175 Difference]: Start difference. First operand has 64 places, 60 transitions, 146 flow. Second operand 3 states and 163 transitions. [2025-03-14 01:35:13,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 65 transitions, 198 flow [2025-03-14 01:35:13,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 65 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:35:13,803 INFO L231 Difference]: Finished difference. Result has 66 places, 63 transitions, 174 flow [2025-03-14 01:35:13,803 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=66, PETRI_TRANSITIONS=63} [2025-03-14 01:35:13,804 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 5 predicate places. [2025-03-14 01:35:13,804 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 63 transitions, 174 flow [2025-03-14 01:35:13,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 01:35:13,804 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:13,804 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] [2025-03-14 01:35:13,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 01:35:13,810 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 01:35:13,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:13,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1268812721, now seen corresponding path program 1 times [2025-03-14 01:35:13,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:13,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484279832] [2025-03-14 01:35:13,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:13,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:13,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-14 01:35:13,837 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-14 01:35:13,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:13,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:13,881 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 01:35:13,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:13,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484279832] [2025-03-14 01:35:13,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484279832] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:13,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:13,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:35:13,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010348623] [2025-03-14 01:35:13,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:13,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:35:13,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:13,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:35:13,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:35:13,913 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 63 [2025-03-14 01:35:13,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 01:35:13,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:13,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 63 [2025-03-14 01:35:13,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:14,040 INFO L124 PetriNetUnfolderBase]: 39/226 cut-off events. [2025-03-14 01:35:14,041 INFO L125 PetriNetUnfolderBase]: For 122/127 co-relation queries the response was YES. [2025-03-14 01:35:14,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 429 conditions, 226 events. 39/226 cut-off events. For 122/127 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 955 event pairs, 16 based on Foata normal form. 2/216 useless extension candidates. Maximal degree in co-relation 397. Up to 75 conditions per place. [2025-03-14 01:35:14,044 INFO L140 encePairwiseOnDemand]: 57/63 looper letters, 11 selfloop transitions, 7 changer transitions 6/70 dead transitions. [2025-03-14 01:35:14,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 70 transitions, 246 flow [2025-03-14 01:35:14,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:35:14,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:35:14,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2025-03-14 01:35:14,045 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8941798941798942 [2025-03-14 01:35:14,045 INFO L175 Difference]: Start difference. First operand has 66 places, 63 transitions, 174 flow. Second operand 3 states and 169 transitions. [2025-03-14 01:35:14,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 70 transitions, 246 flow [2025-03-14 01:35:14,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 70 transitions, 230 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-14 01:35:14,047 INFO L231 Difference]: Finished difference. Result has 68 places, 63 transitions, 200 flow [2025-03-14 01:35:14,047 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=200, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2025-03-14 01:35:14,050 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 7 predicate places. [2025-03-14 01:35:14,050 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 200 flow [2025-03-14 01:35:14,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 01:35:14,051 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:14,051 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] [2025-03-14 01:35:14,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 01:35:14,051 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 01:35:14,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:14,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1540214204, now seen corresponding path program 1 times [2025-03-14 01:35:14,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:14,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031913992] [2025-03-14 01:35:14,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:14,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:14,074 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-14 01:35:14,113 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-14 01:35:14,113 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:14,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:35:14,114 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-14 01:35:14,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-14 01:35:14,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-14 01:35:14,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:14,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:35:14,214 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-14 01:35:14,217 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-14 01:35:14,221 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2025-03-14 01:35:14,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2025-03-14 01:35:14,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-14 01:35:14,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2025-03-14 01:35:14,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2025-03-14 01:35:14,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 01:35:14,226 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-14 01:35:14,287 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-14 01:35:14,288 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-14 01:35:14,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.03 01:35:14 BasicIcfg [2025-03-14 01:35:14,306 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-14 01:35:14,307 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-14 01:35:14,307 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-14 01:35:14,307 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-14 01:35:14,308 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:35:12" (3/4) ... [2025-03-14 01:35:14,309 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-14 01:35:14,341 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 3. [2025-03-14 01:35:14,406 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-14 01:35:14,407 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-14 01:35:14,407 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-14 01:35:14,409 INFO L158 Benchmark]: Toolchain (without parser) took 2138.86ms. Allocated memory is still 167.8MB. Free memory was 121.7MB in the beginning and 85.7MB in the end (delta: 36.0MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2025-03-14 01:35:14,409 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 201.3MB. Free memory is still 116.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:35:14,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.14ms. Allocated memory is still 167.8MB. Free memory was 121.7MB in the beginning and 94.5MB in the end (delta: 27.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-14 01:35:14,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.97ms. Allocated memory is still 167.8MB. Free memory was 94.5MB in the beginning and 93.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:35:14,411 INFO L158 Benchmark]: Boogie Preprocessor took 23.32ms. Allocated memory is still 167.8MB. Free memory was 93.0MB in the beginning and 92.2MB in the end (delta: 844.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-14 01:35:14,412 INFO L158 Benchmark]: IcfgBuilder took 264.30ms. Allocated memory is still 167.8MB. Free memory was 91.4MB in the beginning and 77.8MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-14 01:35:14,412 INFO L158 Benchmark]: TraceAbstraction took 1344.37ms. Allocated memory is still 167.8MB. Free memory was 77.0MB in the beginning and 92.4MB in the end (delta: -15.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:35:14,413 INFO L158 Benchmark]: Witness Printer took 100.34ms. Allocated memory is still 167.8MB. Free memory was 92.4MB in the beginning and 85.7MB in the end (delta: 6.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:35:14,414 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 201.3MB. Free memory is still 116.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 363.14ms. Allocated memory is still 167.8MB. Free memory was 121.7MB in the beginning and 94.5MB in the end (delta: 27.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.97ms. Allocated memory is still 167.8MB. Free memory was 94.5MB in the beginning and 93.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.32ms. Allocated memory is still 167.8MB. Free memory was 93.0MB in the beginning and 92.2MB in the end (delta: 844.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 264.30ms. Allocated memory is still 167.8MB. Free memory was 91.4MB in the beginning and 77.8MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1344.37ms. Allocated memory is still 167.8MB. Free memory was 77.0MB in the beginning and 92.4MB in the end (delta: -15.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 100.34ms. Allocated memory is still 167.8MB. Free memory was 92.4MB in the beginning and 85.7MB in the end (delta: 6.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 933]: 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] [L930] 0 pthread_t id; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L931] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L933] 0 myglobal+1 VAL [id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L925] CALL, EXPR 1 f() [L921] 1 return 5; VAL [\result=5, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L925] RET, EXPR 1 f() [L925] 1 myglobal=f() VAL [\old(arg)={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=5] [L933] 0 myglobal+1 VAL [id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=5] Now there is a data race on ~myglobal~0 between C: myglobal=f() [925] and C: myglobal+1 [933] - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: 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: 925]: 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, 84 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 4 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=200occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-03-14 01:35:14,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)