./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_09-ptrmunge_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 48c9605d 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_09-ptrmunge_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 970aeb05466fab8a4f1842e5a4212ccc8109141703ea02aad9a394d03dd3473a --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:30:25,468 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:30:25,517 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:30:25,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:30:25,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:30:25,539 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:30:25,539 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:30:25,539 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:30:25,539 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:30:25,539 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:30:25,540 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:30:25,540 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:30:25,540 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:30:25,540 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:30:25,540 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:30:25,540 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:30:25,540 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:30:25,540 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:30:25,540 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:30:25,540 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:30:25,540 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:30:25,541 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:30:25,541 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:30:25,541 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:30:25,542 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:30:25,542 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 -> 970aeb05466fab8a4f1842e5a4212ccc8109141703ea02aad9a394d03dd3473a [2025-02-08 05:30:25,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:30:25,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:30:25,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:30:25,737 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:30:25,738 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:30:25,738 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_09-ptrmunge_rc.i [2025-02-08 05:30:26,870 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/31e0fe949/3107f61526e344a999025d39a2045e2e/FLAGee79b6144 [2025-02-08 05:30:27,172 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:30:27,173 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_09-ptrmunge_rc.i [2025-02-08 05:30:27,188 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/31e0fe949/3107f61526e344a999025d39a2045e2e/FLAGee79b6144 [2025-02-08 05:30:27,439 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/31e0fe949/3107f61526e344a999025d39a2045e2e [2025-02-08 05:30:27,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:30:27,442 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:30:27,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:30:27,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:30:27,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:30:27,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:30:27" (1/1) ... [2025-02-08 05:30:27,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4e968d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:27, skipping insertion in model container [2025-02-08 05:30:27,451 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:30:27" (1/1) ... [2025-02-08 05:30:27,480 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:30:27,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:30:27,727 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:30:27,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:30:27,818 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:30:27,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:27 WrapperNode [2025-02-08 05:30:27,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:30:27,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:30:27,820 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:30:27,820 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:30:27,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:27" (1/1) ... [2025-02-08 05:30:27,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:27" (1/1) ... [2025-02-08 05:30:27,848 INFO L138 Inliner]: procedures = 263, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2025-02-08 05:30:27,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:30:27,848 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:30:27,849 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:30:27,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:30:27,853 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:27" (1/1) ... [2025-02-08 05:30:27,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:27" (1/1) ... [2025-02-08 05:30:27,855 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:27" (1/1) ... [2025-02-08 05:30:27,855 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:27" (1/1) ... [2025-02-08 05:30:27,859 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:27" (1/1) ... [2025-02-08 05:30:27,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:27" (1/1) ... [2025-02-08 05:30:27,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:27" (1/1) ... [2025-02-08 05:30:27,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:27" (1/1) ... [2025-02-08 05:30:27,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:30:27,863 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:30:27,863 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:30:27,864 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:30:27,864 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:27" (1/1) ... [2025-02-08 05:30:27,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:30:27,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:30:27,896 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) [2025-02-08 05:30:27,899 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 [2025-02-08 05:30:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 05:30:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-08 05:30:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-08 05:30:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 05:30:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:30:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-08 05:30:27,918 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-08 05:30:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:30:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:30:27,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:30:27,919 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 05:30:28,009 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:30:28,011 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:30:28,212 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:30:28,212 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:30:28,233 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:30:28,233 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:30:28,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:30:28 BoogieIcfgContainer [2025-02-08 05:30:28,234 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:30:28,235 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:30:28,236 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:30:28,239 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:30:28,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:30:27" (1/3) ... [2025-02-08 05:30:28,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac59e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:30:28, skipping insertion in model container [2025-02-08 05:30:28,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:27" (2/3) ... [2025-02-08 05:30:28,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac59e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:30:28, skipping insertion in model container [2025-02-08 05:30:28,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:30:28" (3/3) ... [2025-02-08 05:30:28,241 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_09-ptrmunge_rc.i [2025-02-08 05:30:28,253 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:30:28,254 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_09-ptrmunge_rc.i that has 2 procedures, 93 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-02-08 05:30:28,255 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:30:28,309 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-08 05:30:28,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 92 transitions, 191 flow [2025-02-08 05:30:28,367 INFO L124 PetriNetUnfolderBase]: 0/91 cut-off events. [2025-02-08 05:30:28,369 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:30:28,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 0/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-02-08 05:30:28,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 92 transitions, 191 flow [2025-02-08 05:30:28,374 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 86 transitions, 175 flow [2025-02-08 05:30:28,381 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:30:28,388 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;@1432a094, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:30:28,388 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-02-08 05:30:28,404 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:30:28,406 INFO L124 PetriNetUnfolderBase]: 0/52 cut-off events. [2025-02-08 05:30:28,406 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:30:28,406 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:28,407 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] [2025-02-08 05:30:28,407 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:28,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:28,412 INFO L85 PathProgramCache]: Analyzing trace with hash 858857179, now seen corresponding path program 1 times [2025-02-08 05:30:28,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:28,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649447236] [2025-02-08 05:30:28,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:30:28,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:28,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-08 05:30:28,533 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 05:30:28,533 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:30:28,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:29,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:29,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:29,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649447236] [2025-02-08 05:30:29,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649447236] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:29,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:29,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:30:29,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533685110] [2025-02-08 05:30:29,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:29,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:30:29,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:29,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:30:29,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:30:29,182 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 92 [2025-02-08 05:30:29,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 86 transitions, 175 flow. Second operand has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 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) [2025-02-08 05:30:29,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:29,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 92 [2025-02-08 05:30:29,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:29,318 INFO L124 PetriNetUnfolderBase]: 114/461 cut-off events. [2025-02-08 05:30:29,318 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:30:29,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 722 conditions, 461 events. 114/461 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2375 event pairs, 61 based on Foata normal form. 0/434 useless extension candidates. Maximal degree in co-relation 689. Up to 207 conditions per place. [2025-02-08 05:30:29,322 INFO L140 encePairwiseOnDemand]: 81/92 looper letters, 30 selfloop transitions, 22 changer transitions 0/115 dead transitions. [2025-02-08 05:30:29,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 115 transitions, 337 flow [2025-02-08 05:30:29,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:30:29,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:30:29,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 461 transitions. [2025-02-08 05:30:29,333 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8351449275362319 [2025-02-08 05:30:29,334 INFO L175 Difference]: Start difference. First operand has 90 places, 86 transitions, 175 flow. Second operand 6 states and 461 transitions. [2025-02-08 05:30:29,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 115 transitions, 337 flow [2025-02-08 05:30:29,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 115 transitions, 336 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 05:30:29,341 INFO L231 Difference]: Finished difference. Result has 99 places, 107 transitions, 324 flow [2025-02-08 05:30:29,343 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=99, PETRI_TRANSITIONS=107} [2025-02-08 05:30:29,346 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 9 predicate places. [2025-02-08 05:30:29,346 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 107 transitions, 324 flow [2025-02-08 05:30:29,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 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) [2025-02-08 05:30:29,347 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:29,347 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:30:29,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:30:29,348 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:29,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:29,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1786404397, now seen corresponding path program 1 times [2025-02-08 05:30:29,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:29,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672091734] [2025-02-08 05:30:29,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:30:29,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:29,360 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-02-08 05:30:29,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-02-08 05:30:29,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:30:29,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:29,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:29,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:29,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672091734] [2025-02-08 05:30:29,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672091734] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:29,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:29,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:30:29,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500548498] [2025-02-08 05:30:29,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:29,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:30:29,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:29,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:30:29,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:30:29,669 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 92 [2025-02-08 05:30:29,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 107 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 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) [2025-02-08 05:30:29,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:29,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 92 [2025-02-08 05:30:29,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:29,793 INFO L124 PetriNetUnfolderBase]: 152/595 cut-off events. [2025-02-08 05:30:29,793 INFO L125 PetriNetUnfolderBase]: For 139/158 co-relation queries the response was YES. [2025-02-08 05:30:29,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1113 conditions, 595 events. 152/595 cut-off events. For 139/158 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3377 event pairs, 61 based on Foata normal form. 5/571 useless extension candidates. Maximal degree in co-relation 1076. Up to 264 conditions per place. [2025-02-08 05:30:29,814 INFO L140 encePairwiseOnDemand]: 81/92 looper letters, 43 selfloop transitions, 26 changer transitions 0/136 dead transitions. [2025-02-08 05:30:29,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 136 transitions, 538 flow [2025-02-08 05:30:29,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:30:29,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:30:29,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 461 transitions. [2025-02-08 05:30:29,818 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8351449275362319 [2025-02-08 05:30:29,818 INFO L175 Difference]: Start difference. First operand has 99 places, 107 transitions, 324 flow. Second operand 6 states and 461 transitions. [2025-02-08 05:30:29,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 136 transitions, 538 flow [2025-02-08 05:30:29,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 136 transitions, 538 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:30:29,825 INFO L231 Difference]: Finished difference. Result has 109 places, 128 transitions, 508 flow [2025-02-08 05:30:29,825 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=508, PETRI_PLACES=109, PETRI_TRANSITIONS=128} [2025-02-08 05:30:29,826 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 19 predicate places. [2025-02-08 05:30:29,826 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 128 transitions, 508 flow [2025-02-08 05:30:29,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 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) [2025-02-08 05:30:29,827 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:29,827 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:30:29,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 05:30:29,827 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:29,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:29,828 INFO L85 PathProgramCache]: Analyzing trace with hash 587156894, now seen corresponding path program 1 times [2025-02-08 05:30:29,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:29,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65036520] [2025-02-08 05:30:29,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:30:29,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:29,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-02-08 05:30:29,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-02-08 05:30:29,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:30:29,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:30,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:30,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:30,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65036520] [2025-02-08 05:30:30,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65036520] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:30,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:30,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:30:30,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017877420] [2025-02-08 05:30:30,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:30,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:30:30,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:30,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:30:30,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:30:30,145 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 92 [2025-02-08 05:30:30,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 128 transitions, 508 flow. Second operand has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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) [2025-02-08 05:30:30,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:30,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 92 [2025-02-08 05:30:30,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:30,350 INFO L124 PetriNetUnfolderBase]: 292/936 cut-off events. [2025-02-08 05:30:30,350 INFO L125 PetriNetUnfolderBase]: For 572/591 co-relation queries the response was YES. [2025-02-08 05:30:30,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2296 conditions, 936 events. 292/936 cut-off events. For 572/591 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5682 event pairs, 101 based on Foata normal form. 3/897 useless extension candidates. Maximal degree in co-relation 2254. Up to 528 conditions per place. [2025-02-08 05:30:30,355 INFO L140 encePairwiseOnDemand]: 77/92 looper letters, 68 selfloop transitions, 53 changer transitions 4/183 dead transitions. [2025-02-08 05:30:30,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 183 transitions, 1002 flow [2025-02-08 05:30:30,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:30:30,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:30:30,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 447 transitions. [2025-02-08 05:30:30,357 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8097826086956522 [2025-02-08 05:30:30,357 INFO L175 Difference]: Start difference. First operand has 109 places, 128 transitions, 508 flow. Second operand 6 states and 447 transitions. [2025-02-08 05:30:30,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 183 transitions, 1002 flow [2025-02-08 05:30:30,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 183 transitions, 1002 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:30:30,363 INFO L231 Difference]: Finished difference. Result has 119 places, 175 transitions, 990 flow [2025-02-08 05:30:30,363 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=990, PETRI_PLACES=119, PETRI_TRANSITIONS=175} [2025-02-08 05:30:30,364 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 29 predicate places. [2025-02-08 05:30:30,364 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 175 transitions, 990 flow [2025-02-08 05:30:30,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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) [2025-02-08 05:30:30,364 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:30,364 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:30:30,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:30:30,364 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:30,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:30,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1425080423, now seen corresponding path program 1 times [2025-02-08 05:30:30,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:30,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079478368] [2025-02-08 05:30:30,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:30:30,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:30,374 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-08 05:30:30,378 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-08 05:30:30,378 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:30:30,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:30,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:30,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:30,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079478368] [2025-02-08 05:30:30,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079478368] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:30,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:30,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:30:30,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758979652] [2025-02-08 05:30:30,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:30,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:30:30,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:30,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:30:30,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:30:30,677 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 92 [2025-02-08 05:30:30,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 175 transitions, 990 flow. Second operand has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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) [2025-02-08 05:30:30,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:30,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 92 [2025-02-08 05:30:30,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:30,901 INFO L124 PetriNetUnfolderBase]: 396/1209 cut-off events. [2025-02-08 05:30:30,901 INFO L125 PetriNetUnfolderBase]: For 1577/1613 co-relation queries the response was YES. [2025-02-08 05:30:30,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3582 conditions, 1209 events. 396/1209 cut-off events. For 1577/1613 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 7761 event pairs, 107 based on Foata normal form. 4/1183 useless extension candidates. Maximal degree in co-relation 3535. Up to 673 conditions per place. [2025-02-08 05:30:30,907 INFO L140 encePairwiseOnDemand]: 77/92 looper letters, 105 selfloop transitions, 61 changer transitions 10/236 dead transitions. [2025-02-08 05:30:30,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 236 transitions, 1688 flow [2025-02-08 05:30:30,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:30:30,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:30:30,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 447 transitions. [2025-02-08 05:30:30,909 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8097826086956522 [2025-02-08 05:30:30,909 INFO L175 Difference]: Start difference. First operand has 119 places, 175 transitions, 990 flow. Second operand 6 states and 447 transitions. [2025-02-08 05:30:30,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 236 transitions, 1688 flow [2025-02-08 05:30:30,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 236 transitions, 1624 flow, removed 32 selfloop flow, removed 0 redundant places. [2025-02-08 05:30:30,918 INFO L231 Difference]: Finished difference. Result has 129 places, 222 transitions, 1512 flow [2025-02-08 05:30:30,919 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=932, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1512, PETRI_PLACES=129, PETRI_TRANSITIONS=222} [2025-02-08 05:30:30,919 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 39 predicate places. [2025-02-08 05:30:30,919 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 222 transitions, 1512 flow [2025-02-08 05:30:30,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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) [2025-02-08 05:30:30,920 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:30,920 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:30:30,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 05:30:30,920 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:30,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:30,920 INFO L85 PathProgramCache]: Analyzing trace with hash 288252388, now seen corresponding path program 1 times [2025-02-08 05:30:30,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:30,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704404200] [2025-02-08 05:30:30,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:30:30,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:30,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-02-08 05:30:30,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-02-08 05:30:30,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:30:30,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:30:30,936 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:30:30,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-02-08 05:30:30,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-02-08 05:30:30,948 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:30:30,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:30:30,972 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:30:30,972 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:30:30,973 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2025-02-08 05:30:30,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2025-02-08 05:30:30,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-02-08 05:30:30,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2025-02-08 05:30:30,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2025-02-08 05:30:30,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2025-02-08 05:30:30,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2025-02-08 05:30:30,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 05:30:30,975 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-02-08 05:30:31,024 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 05:30:31,025 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 05:30:31,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 05:30:31 BasicIcfg [2025-02-08 05:30:31,030 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 05:30:31,031 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 05:30:31,031 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 05:30:31,031 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 05:30:31,032 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:30:28" (3/4) ... [2025-02-08 05:30:31,033 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-02-08 05:30:31,081 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 3. [2025-02-08 05:30:31,108 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 05:30:31,108 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 05:30:31,108 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 05:30:31,109 INFO L158 Benchmark]: Toolchain (without parser) took 3666.23ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 105.4MB in the beginning and 189.6MB in the end (delta: -84.2MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. [2025-02-08 05:30:31,109 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:30:31,109 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.10ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 77.4MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 05:30:31,109 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.69ms. Allocated memory is still 142.6MB. Free memory was 77.4MB in the beginning and 75.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 05:30:31,109 INFO L158 Benchmark]: Boogie Preprocessor took 14.27ms. Allocated memory is still 142.6MB. Free memory was 75.9MB in the beginning and 73.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:30:31,109 INFO L158 Benchmark]: IcfgBuilder took 370.38ms. Allocated memory is still 142.6MB. Free memory was 73.5MB in the beginning and 56.8MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 05:30:31,109 INFO L158 Benchmark]: TraceAbstraction took 2795.02ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 55.7MB in the beginning and 199.8MB in the end (delta: -144.1MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2025-02-08 05:30:31,109 INFO L158 Benchmark]: Witness Printer took 77.04ms. Allocated memory is still 310.4MB. Free memory was 199.8MB in the beginning and 189.6MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 05:30:31,110 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.10ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 77.4MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.69ms. Allocated memory is still 142.6MB. Free memory was 77.4MB in the beginning and 75.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.27ms. Allocated memory is still 142.6MB. Free memory was 75.9MB in the beginning and 73.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 370.38ms. Allocated memory is still 142.6MB. Free memory was 73.5MB in the beginning and 56.8MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2795.02ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 55.7MB in the beginning and 199.8MB in the end (delta: -144.1MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * Witness Printer took 77.04ms. Allocated memory is still 310.4MB. Free memory was 199.8MB in the beginning and 189.6MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 923]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal1; VAL [myglobal1={1:0}] [L918] 0 int myglobal2; VAL [myglobal1={1:0}, myglobal2=0] [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={2:0}, myglobal1={1:0}, myglobal2=0] [L920] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={2:0}, mutex2={3:0}, myglobal1={1:0}, myglobal2=0] [L931] 0 pthread_t id; VAL [mutex1={2:0}, mutex2={3:0}, myglobal1={1:0}, myglobal2=0] [L932] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id=-1, mutex1={2:0}, mutex2={3:0}, myglobal1={1:0}, myglobal2=0] [L933] CALL 0 munge(&mutex2,&myglobal1) [L927] CALL 1 munge(&mutex1, &myglobal1) [L923] EXPR 1 \read(*v) VAL [\old(m)={2:0}, \old(m)={3:0}, \old(v)={1:0}, \old(v)={1:0}, m={2:0}, mutex1={2:0}, mutex2={3:0}, myglobal1={1:0}, myglobal2=0, v={1:0}] [L923] EXPR 1 *v+1 VAL [\old(m)={2:0}, \old(m)={3:0}, \old(v)={1:0}, \old(v)={1:0}, m={2:0}, mutex1={2:0}, mutex2={3:0}, myglobal1={1:0}, myglobal2=0, v={1:0}] [L923] EXPR 0 \read(*v) VAL [\old(m)={2:0}, \old(m)={3:0}, \old(v)={1:0}, \old(v)={1:0}, m={2:0}, m={3:0}, mutex1={2:0}, mutex2={3:0}, myglobal1={1:0}, myglobal2=0, v={1:0}, v={1:0}] [L923] 0 *v+1 VAL [\old(m)={2:0}, \old(m)={3:0}, \old(v)={1:0}, \old(v)={1:0}, m={2:0}, m={3:0}, mutex1={2:0}, mutex2={3:0}, myglobal1={1:0}, myglobal2=0, v={1:0}, v={1:0}] [L923] 1 *v=*v+1 VAL [\old(m)={2:0}, \old(m)={3:0}, \old(v)={1:0}, \old(v)={1:0}, m={2:0}, m={3:0}, mutex1={2:0}, mutex2={3:0}, myglobal1={1:0}, myglobal2=0, v={1:0}, v={1:0}] [L923] 0 *v+1 VAL [\old(m)={2:0}, \old(m)={3:0}, \old(v)={1:0}, \old(v)={1:0}, m={2:0}, m={3:0}, mutex1={2:0}, mutex2={3:0}, myglobal1={1:0}, myglobal2=0, v={1:0}, v={1:0}] Now there is a data race (on the heap) between C: *v=*v+1 [923] and C: *v+1 [923] - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 125 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 241 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 157 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 818 IncrementalHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 5 mSDtfsCounter, 818 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1512occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 1.1s InterpolantComputationTime, 233 NumberOfCodeBlocks, 233 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 496 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-02-08 05:30:31,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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)