./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_50-funptr_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_50-funptr_rc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1abd6fb835489bc29b4b3171e6e4732aae8910bae019e148dd431ac2077bb570 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:22:17,717 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:22:17,790 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:22:17,797 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:22:17,797 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:22:17,818 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:22:17,818 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:22:17,818 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:22:17,819 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:22:17,820 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:22:17,821 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:22:17,821 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:22:17,821 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:22:17,821 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:22:17,821 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:22:17,821 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:22:17,821 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:22:17,821 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:22:17,821 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:22:17,821 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:22:17,821 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:22:17,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:22:17,821 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:22:17,822 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:22:17,822 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:22:17,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:22:17,822 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:22:17,822 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:22:17,822 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:22:17,822 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:22:17,822 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:22:17,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:22:17,822 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:22:17,822 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:22:17,822 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:22:17,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:22:17,822 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:22:17,823 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:22:17,823 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:22:17,823 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:22:17,823 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:22:17,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:22:17,823 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:22:17,823 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:22:17,823 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:22:17,823 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:22:17,823 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1abd6fb835489bc29b4b3171e6e4732aae8910bae019e148dd431ac2077bb570 [2025-01-09 21:22:17,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:22:18,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:22:18,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:22:18,002 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:22:18,002 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:22:18,003 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_50-funptr_rc.i [2025-01-09 21:22:19,035 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/61b4dd221/9daea518019348af83f7d0501f0ed134/FLAG35288be48 [2025-01-09 21:22:19,369 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:22:19,369 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_50-funptr_rc.i [2025-01-09 21:22:19,385 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/61b4dd221/9daea518019348af83f7d0501f0ed134/FLAG35288be48 [2025-01-09 21:22:19,400 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/61b4dd221/9daea518019348af83f7d0501f0ed134 [2025-01-09 21:22:19,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:22:19,412 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:22:19,413 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:22:19,413 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:22:19,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:22:19,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:22:19" (1/1) ... [2025-01-09 21:22:19,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30296b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:19, skipping insertion in model container [2025-01-09 21:22:19,418 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:22:19" (1/1) ... [2025-01-09 21:22:19,445 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:22:19,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:22:19,754 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:22:19,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:22:19,848 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:22:19,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:19 WrapperNode [2025-01-09 21:22:19,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:22:19,849 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:22:19,849 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:22:19,849 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:22:19,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:19" (1/1) ... [2025-01-09 21:22:19,873 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:19" (1/1) ... [2025-01-09 21:22:19,891 INFO L138 Inliner]: procedures = 265, calls = 22, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2025-01-09 21:22:19,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:22:19,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:22:19,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:22:19,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:22:19,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:19" (1/1) ... [2025-01-09 21:22:19,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:19" (1/1) ... [2025-01-09 21:22:19,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:19" (1/1) ... [2025-01-09 21:22:19,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:19" (1/1) ... [2025-01-09 21:22:19,905 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:19" (1/1) ... [2025-01-09 21:22:19,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:19" (1/1) ... [2025-01-09 21:22:19,910 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:19" (1/1) ... [2025-01-09 21:22:19,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:19" (1/1) ... [2025-01-09 21:22:19,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:19" (1/1) ... [2025-01-09 21:22:19,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:22:19,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:22:19,916 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:22:19,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:22:19,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:19" (1/1) ... [2025-01-09 21:22:19,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:22:19,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:22:19,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 21:22:19,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 21:22:19,970 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-09 21:22:19,970 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-09 21:22:19,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:22:19,971 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-09 21:22:19,971 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-09 21:22:19,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:22:19,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:22:19,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:22:19,972 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:22:20,072 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:22:20,073 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:22:20,156 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:22:20,157 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:22:20,169 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:22:20,170 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 21:22:20,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:22:20 BoogieIcfgContainer [2025-01-09 21:22:20,170 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:22:20,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:22:20,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:22:20,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:22:20,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:22:19" (1/3) ... [2025-01-09 21:22:20,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683e44bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:22:20, skipping insertion in model container [2025-01-09 21:22:20,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:19" (2/3) ... [2025-01-09 21:22:20,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683e44bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:22:20, skipping insertion in model container [2025-01-09 21:22:20,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:22:20" (3/3) ... [2025-01-09 21:22:20,177 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_50-funptr_rc.i [2025-01-09 21:22:20,187 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:22:20,188 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_50-funptr_rc.i that has 2 procedures, 76 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-01-09 21:22:20,188 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:22:20,224 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-01-09 21:22:20,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 76 transitions, 159 flow [2025-01-09 21:22:20,278 INFO L124 PetriNetUnfolderBase]: 1/75 cut-off events. [2025-01-09 21:22:20,279 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:22:20,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 75 events. 1/75 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2025-01-09 21:22:20,282 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 76 transitions, 159 flow [2025-01-09 21:22:20,284 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 70 transitions, 143 flow [2025-01-09 21:22:20,290 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:22:20,298 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;@39c3c08b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:22:20,298 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-09 21:22:20,306 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:22:20,307 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2025-01-09 21:22:20,307 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:22:20,307 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:20,307 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] [2025-01-09 21:22:20,308 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-01-09 21:22:20,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:20,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1735915475, now seen corresponding path program 1 times [2025-01-09 21:22:20,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:20,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372659404] [2025-01-09 21:22:20,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:20,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:20,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-09 21:22:20,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-09 21:22:20,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:20,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:20,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:20,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:20,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372659404] [2025-01-09 21:22:20,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372659404] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:20,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:20,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:22:20,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282789071] [2025-01-09 21:22:20,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:20,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:22:20,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:20,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:22:20,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:22:20,509 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 76 [2025-01-09 21:22:20,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 70 transitions, 143 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2025-01-09 21:22:20,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:20,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 76 [2025-01-09 21:22:20,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:20,604 INFO L124 PetriNetUnfolderBase]: 18/205 cut-off events. [2025-01-09 21:22:20,604 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:22:20,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 205 events. 18/205 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 740 event pairs, 4 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 222. Up to 23 conditions per place. [2025-01-09 21:22:20,606 INFO L140 encePairwiseOnDemand]: 72/76 looper letters, 11 selfloop transitions, 3 changer transitions 0/75 dead transitions. [2025-01-09 21:22:20,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 75 transitions, 181 flow [2025-01-09 21:22:20,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:22:20,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:22:20,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2025-01-09 21:22:20,618 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9342105263157895 [2025-01-09 21:22:20,619 INFO L175 Difference]: Start difference. First operand has 73 places, 70 transitions, 143 flow. Second operand 3 states and 213 transitions. [2025-01-09 21:22:20,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 75 transitions, 181 flow [2025-01-09 21:22:20,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 75 transitions, 180 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:22:20,629 INFO L231 Difference]: Finished difference. Result has 76 places, 72 transitions, 164 flow [2025-01-09 21:22:20,632 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=76, PETRI_TRANSITIONS=72} [2025-01-09 21:22:20,634 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 3 predicate places. [2025-01-09 21:22:20,636 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 72 transitions, 164 flow [2025-01-09 21:22:20,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2025-01-09 21:22:20,637 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:20,638 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] [2025-01-09 21:22:20,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:22:20,638 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-01-09 21:22:20,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:20,640 INFO L85 PathProgramCache]: Analyzing trace with hash -976599530, now seen corresponding path program 1 times [2025-01-09 21:22:20,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:20,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762759910] [2025-01-09 21:22:20,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:20,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:20,659 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-01-09 21:22:20,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-01-09 21:22:20,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:20,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:20,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:20,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:20,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762759910] [2025-01-09 21:22:20,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762759910] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:20,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:20,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:22:20,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577503422] [2025-01-09 21:22:20,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:20,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:22:20,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:20,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:22:20,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:22:20,747 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 76 [2025-01-09 21:22:20,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 72 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2025-01-09 21:22:20,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:20,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 76 [2025-01-09 21:22:20,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:20,814 INFO L124 PetriNetUnfolderBase]: 31/258 cut-off events. [2025-01-09 21:22:20,818 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2025-01-09 21:22:20,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 258 events. 31/258 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1089 event pairs, 14 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 333. Up to 52 conditions per place. [2025-01-09 21:22:20,820 INFO L140 encePairwiseOnDemand]: 71/76 looper letters, 10 selfloop transitions, 5 changer transitions 3/77 dead transitions. [2025-01-09 21:22:20,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 77 transitions, 212 flow [2025-01-09 21:22:20,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:22:20,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:22:20,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2025-01-09 21:22:20,825 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2025-01-09 21:22:20,825 INFO L175 Difference]: Start difference. First operand has 76 places, 72 transitions, 164 flow. Second operand 3 states and 209 transitions. [2025-01-09 21:22:20,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 77 transitions, 212 flow [2025-01-09 21:22:20,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 77 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:22:20,827 INFO L231 Difference]: Finished difference. Result has 78 places, 73 transitions, 186 flow [2025-01-09 21:22:20,827 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=78, PETRI_TRANSITIONS=73} [2025-01-09 21:22:20,827 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 5 predicate places. [2025-01-09 21:22:20,827 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 73 transitions, 186 flow [2025-01-09 21:22:20,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2025-01-09 21:22:20,827 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:20,828 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:22:20,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:22:20,828 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-01-09 21:22:20,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:20,830 INFO L85 PathProgramCache]: Analyzing trace with hash -666922774, now seen corresponding path program 1 times [2025-01-09 21:22:20,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:20,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415318467] [2025-01-09 21:22:20,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:20,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:20,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-09 21:22:20,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-09 21:22:20,866 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:20,866 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:22:20,866 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:22:20,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-09 21:22:20,873 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-09 21:22:20,873 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:20,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:22:20,890 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:22:20,891 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:22:20,891 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2025-01-09 21:22:20,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-01-09 21:22:20,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2025-01-09 21:22:20,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2025-01-09 21:22:20,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:22:20,893 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-01-09 21:22:20,909 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-09 21:22:20,909 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 21:22:20,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 09:22:20 BasicIcfg [2025-01-09 21:22:20,913 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 21:22:20,913 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 21:22:20,913 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 21:22:20,913 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 21:22:20,914 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:22:20" (3/4) ... [2025-01-09 21:22:20,914 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-01-09 21:22:20,947 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 1. [2025-01-09 21:22:20,970 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 21:22:20,970 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 21:22:20,970 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 21:22:20,971 INFO L158 Benchmark]: Toolchain (without parser) took 1566.59ms. Allocated memory is still 142.6MB. Free memory was 109.8MB in the beginning and 69.5MB in the end (delta: 40.3MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2025-01-09 21:22:20,971 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 128.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:22:20,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.59ms. Allocated memory is still 142.6MB. Free memory was 109.8MB in the beginning and 81.9MB in the end (delta: 28.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 21:22:20,972 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.11ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 80.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:22:20,972 INFO L158 Benchmark]: Boogie Preprocessor took 23.68ms. Allocated memory is still 142.6MB. Free memory was 80.3MB in the beginning and 79.4MB in the end (delta: 861.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:22:20,972 INFO L158 Benchmark]: RCFGBuilder took 253.97ms. Allocated memory is still 142.6MB. Free memory was 79.4MB in the beginning and 65.1MB in the end (delta: 14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:22:20,972 INFO L158 Benchmark]: TraceAbstraction took 741.20ms. Allocated memory is still 142.6MB. Free memory was 65.1MB in the beginning and 76.3MB in the end (delta: -11.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:22:20,973 INFO L158 Benchmark]: Witness Printer took 56.34ms. Allocated memory is still 142.6MB. Free memory was 76.3MB in the beginning and 69.5MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:22:20,973 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 128.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 435.59ms. Allocated memory is still 142.6MB. Free memory was 109.8MB in the beginning and 81.9MB in the end (delta: 28.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.11ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 80.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.68ms. Allocated memory is still 142.6MB. Free memory was 80.3MB in the beginning and 79.4MB in the end (delta: 861.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 253.97ms. Allocated memory is still 142.6MB. Free memory was 79.4MB in the beginning and 65.1MB in the end (delta: 14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 741.20ms. Allocated memory is still 142.6MB. Free memory was 65.1MB in the beginning and 76.3MB in the end (delta: -11.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 56.34ms. Allocated memory is still 142.6MB. Free memory was 76.3MB in the beginning and 69.5MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 932]: Data race detected Data race detected The following path leads to a data race: [L919] 0 int (*fp)() = f1; VAL [fp={-1:0}] [L920] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [fp={-1:0}, mutex1={1:0}] [L921] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [fp={-1:0}, mutex1={1:0}, mutex2={2:0}] [L929] 0 pthread_t id; VAL [fp={-1:0}, mutex1={1:0}, mutex2={2:0}] [L930] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, fp={-1:0}, id=-1, mutex1={1:0}, mutex2={2:0}] [L924] 1 fp = f2 VAL [\old(arg)={0:0}, arg={0:0}, fp={-1:1}, mutex1={1:0}, mutex2={2:0}] [L932] 0 fp() VAL [\old(arg)={0:0}, arg={0:0}, fp={-1:1}, id=-1, mutex1={1:0}, mutex2={2:0}] Now there is a data race on ~fp~0 between C: fp = f2 [924] and C: fp() [932] - UnprovableResult [Line: 930]: 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: 924]: 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, 91 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: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 10 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, 10 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=186occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 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! [2025-01-09 21:22:20,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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)