./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/00-sanity_09-include.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/00-sanity_09-include.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 307d63abfae79cdd61ed4daf9d81bc4d48dc48683ca873101296e7e9a62177df --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:48:32,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:48:32,757 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:48:32,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:48:32,764 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:48:32,779 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:48:32,779 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:48:32,779 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:48:32,780 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:48:32,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:48:32,781 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:48:32,781 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:48:32,781 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:48:32,781 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:48:32,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:48:32,782 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:48:32,782 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:48:32,784 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:48:32,784 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:48:32,784 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:48:32,785 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:48:32,788 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:48:32,788 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:48:32,788 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:48:32,788 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:48:32,788 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:48:32,788 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:48:32,788 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:48:32,789 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:48:32,789 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:48:32,789 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:48:32,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:48:32,789 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:48:32,789 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:48:32,789 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:48:32,790 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:48:32,790 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:48:32,790 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:48:32,790 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:48:32,790 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:48:32,790 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:48:32,791 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 307d63abfae79cdd61ed4daf9d81bc4d48dc48683ca873101296e7e9a62177df [2024-10-13 09:48:32,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:48:33,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:48:33,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:48:33,008 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:48:33,008 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:48:33,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/00-sanity_09-include.i [2024-10-13 09:48:34,254 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:48:34,467 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:48:34,471 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/00-sanity_09-include.i [2024-10-13 09:48:34,491 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00f38735e/3061837d262a426b92a39ff035920e7b/FLAG1417d5b11 [2024-10-13 09:48:34,503 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00f38735e/3061837d262a426b92a39ff035920e7b [2024-10-13 09:48:34,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:48:34,506 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:48:34,511 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:48:34,511 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:48:34,515 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:48:34,516 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:48:34" (1/1) ... [2024-10-13 09:48:34,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c40d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:34, skipping insertion in model container [2024-10-13 09:48:34,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:48:34" (1/1) ... [2024-10-13 09:48:34,559 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:48:34,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:48:34,926 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:48:34,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:48:35,026 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:48:35,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:35 WrapperNode [2024-10-13 09:48:35,027 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:48:35,031 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:48:35,031 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:48:35,031 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:48:35,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:35" (1/1) ... [2024-10-13 09:48:35,059 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:35" (1/1) ... [2024-10-13 09:48:35,077 INFO L138 Inliner]: procedures = 264, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-10-13 09:48:35,078 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:48:35,078 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:48:35,079 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:48:35,079 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:48:35,085 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:35" (1/1) ... [2024-10-13 09:48:35,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:35" (1/1) ... [2024-10-13 09:48:35,091 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:35" (1/1) ... [2024-10-13 09:48:35,091 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:35" (1/1) ... [2024-10-13 09:48:35,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:35" (1/1) ... [2024-10-13 09:48:35,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:35" (1/1) ... [2024-10-13 09:48:35,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:35" (1/1) ... [2024-10-13 09:48:35,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:35" (1/1) ... [2024-10-13 09:48:35,099 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:48:35,100 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:48:35,100 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:48:35,100 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:48:35,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:35" (1/1) ... [2024-10-13 09:48:35,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:48:35,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:48:35,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 09:48:35,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 09:48:35,233 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:48:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:48:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:48:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 09:48:35,234 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 09:48:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:48:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:48:35,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:48:35,236 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:48:35,352 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:48:35,354 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:48:35,460 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:48:35,460 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:48:35,479 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:48:35,479 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 09:48:35,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:48:35 BoogieIcfgContainer [2024-10-13 09:48:35,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:48:35,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:48:35,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:48:35,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:48:35,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:48:34" (1/3) ... [2024-10-13 09:48:35,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd7603e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:48:35, skipping insertion in model container [2024-10-13 09:48:35,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:35" (2/3) ... [2024-10-13 09:48:35,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd7603e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:48:35, skipping insertion in model container [2024-10-13 09:48:35,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:48:35" (3/3) ... [2024-10-13 09:48:35,488 INFO L112 eAbstractionObserver]: Analyzing ICFG 00-sanity_09-include.i [2024-10-13 09:48:35,501 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:48:35,501 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-13 09:48:35,501 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:48:35,530 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:48:35,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 53 transitions, 110 flow [2024-10-13 09:48:35,581 INFO L124 PetriNetUnfolderBase]: 0/52 cut-off events. [2024-10-13 09:48:35,581 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:48:35,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-13 09:48:35,585 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 53 transitions, 110 flow [2024-10-13 09:48:35,588 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2024-10-13 09:48:35,598 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:48:35,607 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;@5eb99b46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:48:35,607 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-13 09:48:35,615 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:48:35,619 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-10-13 09:48:35,619 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:48:35,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:48:35,620 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:48:35,621 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:48:35,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:48:35,628 INFO L85 PathProgramCache]: Analyzing trace with hash 506797662, now seen corresponding path program 1 times [2024-10-13 09:48:35,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:48:35,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915547333] [2024-10-13 09:48:35,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:48:35,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:48:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:48:35,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:48:35,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:48:35,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915547333] [2024-10-13 09:48:35,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915547333] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:48:35,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:48:35,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:48:35,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163400332] [2024-10-13 09:48:35,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:48:35,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:48:35,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:48:35,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:48:35,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:48:35,883 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 53 [2024-10-13 09:48:35,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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) [2024-10-13 09:48:35,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:48:35,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 53 [2024-10-13 09:48:35,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:48:35,939 INFO L124 PetriNetUnfolderBase]: 18/148 cut-off events. [2024-10-13 09:48:35,940 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:48:35,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 148 events. 18/148 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 569 event pairs, 6 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 181. Up to 27 conditions per place. [2024-10-13 09:48:35,945 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 13 selfloop transitions, 6 changer transitions 0/60 dead transitions. [2024-10-13 09:48:35,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 60 transitions, 161 flow [2024-10-13 09:48:35,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:48:35,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:48:35,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 147 transitions. [2024-10-13 09:48:35,958 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9245283018867925 [2024-10-13 09:48:35,959 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 107 flow. Second operand 3 states and 147 transitions. [2024-10-13 09:48:35,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 60 transitions, 161 flow [2024-10-13 09:48:35,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 60 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:48:35,963 INFO L231 Difference]: Finished difference. Result has 59 places, 58 transitions, 158 flow [2024-10-13 09:48:35,968 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=59, PETRI_TRANSITIONS=58} [2024-10-13 09:48:35,970 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 3 predicate places. [2024-10-13 09:48:35,971 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 58 transitions, 158 flow [2024-10-13 09:48:35,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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) [2024-10-13 09:48:35,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:48:35,972 INFO L204 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] [2024-10-13 09:48:35,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:48:35,972 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:48:35,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:48:35,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1406596505, now seen corresponding path program 1 times [2024-10-13 09:48:35,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:48:35,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925385240] [2024-10-13 09:48:35,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:48:35,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:48:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:48:36,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:48:36,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:48:36,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925385240] [2024-10-13 09:48:36,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925385240] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:48:36,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:48:36,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:48:36,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58889288] [2024-10-13 09:48:36,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:48:36,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:48:36,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:48:36,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:48:36,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:48:36,091 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 53 [2024-10-13 09:48:36,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 58 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2024-10-13 09:48:36,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:48:36,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 53 [2024-10-13 09:48:36,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:48:36,158 INFO L124 PetriNetUnfolderBase]: 42/235 cut-off events. [2024-10-13 09:48:36,158 INFO L125 PetriNetUnfolderBase]: For 78/80 co-relation queries the response was YES. [2024-10-13 09:48:36,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 235 events. 42/235 cut-off events. For 78/80 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1116 event pairs, 17 based on Foata normal form. 1/216 useless extension candidates. Maximal degree in co-relation 401. Up to 78 conditions per place. [2024-10-13 09:48:36,160 INFO L140 encePairwiseOnDemand]: 47/53 looper letters, 16 selfloop transitions, 7 changer transitions 1/65 dead transitions. [2024-10-13 09:48:36,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 65 transitions, 230 flow [2024-10-13 09:48:36,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:48:36,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:48:36,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2024-10-13 09:48:36,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8805031446540881 [2024-10-13 09:48:36,163 INFO L175 Difference]: Start difference. First operand has 59 places, 58 transitions, 158 flow. Second operand 3 states and 140 transitions. [2024-10-13 09:48:36,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 65 transitions, 230 flow [2024-10-13 09:48:36,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 65 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:48:36,168 INFO L231 Difference]: Finished difference. Result has 61 places, 63 transitions, 202 flow [2024-10-13 09:48:36,169 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=61, PETRI_TRANSITIONS=63} [2024-10-13 09:48:36,169 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 5 predicate places. [2024-10-13 09:48:36,170 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 63 transitions, 202 flow [2024-10-13 09:48:36,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2024-10-13 09:48:36,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:48:36,170 INFO L204 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] [2024-10-13 09:48:36,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:48:36,170 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:48:36,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:48:36,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1725476559, now seen corresponding path program 1 times [2024-10-13 09:48:36,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:48:36,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559818567] [2024-10-13 09:48:36,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:48:36,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:48:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:48:36,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:48:36,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:48:36,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559818567] [2024-10-13 09:48:36,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559818567] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:48:36,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:48:36,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:48:36,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126302729] [2024-10-13 09:48:36,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:48:36,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:48:36,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:48:36,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:48:36,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:48:36,243 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 53 [2024-10-13 09:48:36,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 63 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2024-10-13 09:48:36,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:48:36,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 53 [2024-10-13 09:48:36,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:48:36,285 INFO L124 PetriNetUnfolderBase]: 37/238 cut-off events. [2024-10-13 09:48:36,288 INFO L125 PetriNetUnfolderBase]: For 169/173 co-relation queries the response was YES. [2024-10-13 09:48:36,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 238 events. 37/238 cut-off events. For 169/173 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1164 event pairs, 8 based on Foata normal form. 1/225 useless extension candidates. Maximal degree in co-relation 465. Up to 67 conditions per place. [2024-10-13 09:48:36,290 INFO L140 encePairwiseOnDemand]: 47/53 looper letters, 12 selfloop transitions, 7 changer transitions 6/68 dead transitions. [2024-10-13 09:48:36,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 68 transitions, 272 flow [2024-10-13 09:48:36,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:48:36,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:48:36,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 142 transitions. [2024-10-13 09:48:36,292 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8930817610062893 [2024-10-13 09:48:36,292 INFO L175 Difference]: Start difference. First operand has 61 places, 63 transitions, 202 flow. Second operand 3 states and 142 transitions. [2024-10-13 09:48:36,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 68 transitions, 272 flow [2024-10-13 09:48:36,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 68 transitions, 254 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:48:36,296 INFO L231 Difference]: Finished difference. Result has 63 places, 62 transitions, 220 flow [2024-10-13 09:48:36,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=63, PETRI_TRANSITIONS=62} [2024-10-13 09:48:36,296 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 7 predicate places. [2024-10-13 09:48:36,296 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 62 transitions, 220 flow [2024-10-13 09:48:36,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2024-10-13 09:48:36,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:48:36,297 INFO L204 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] [2024-10-13 09:48:36,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:48:36,297 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:48:36,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:48:36,298 INFO L85 PathProgramCache]: Analyzing trace with hash 247971112, now seen corresponding path program 1 times [2024-10-13 09:48:36,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:48:36,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919756542] [2024-10-13 09:48:36,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:48:36,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:48:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:48:36,323 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:48:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:48:36,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:48:36,358 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:48:36,359 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-10-13 09:48:36,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-10-13 09:48:36,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-10-13 09:48:36,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-10-13 09:48:36,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-10-13 09:48:36,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-10-13 09:48:36,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-10-13 09:48:36,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:48:36,364 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-13 09:48:36,390 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 09:48:36,390 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 09:48:36,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:48:36 BasicIcfg [2024-10-13 09:48:36,395 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 09:48:36,396 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 09:48:36,396 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 09:48:36,397 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 09:48:36,397 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:48:35" (3/4) ... [2024-10-13 09:48:36,398 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-13 09:48:36,399 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 09:48:36,399 INFO L158 Benchmark]: Toolchain (without parser) took 1893.38ms. Allocated memory is still 186.6MB. Free memory was 116.1MB in the beginning and 72.5MB in the end (delta: 43.5MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2024-10-13 09:48:36,400 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 79.0MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 09:48:36,400 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.86ms. Allocated memory is still 186.6MB. Free memory was 115.8MB in the beginning and 86.4MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-13 09:48:36,400 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.17ms. Allocated memory is still 186.6MB. Free memory was 86.4MB in the beginning and 84.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 09:48:36,401 INFO L158 Benchmark]: Boogie Preprocessor took 20.77ms. Allocated memory is still 186.6MB. Free memory was 84.3MB in the beginning and 83.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 09:48:36,401 INFO L158 Benchmark]: RCFGBuilder took 382.79ms. Allocated memory is still 186.6MB. Free memory was 83.1MB in the beginning and 147.0MB in the end (delta: -63.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-13 09:48:36,401 INFO L158 Benchmark]: TraceAbstraction took 911.95ms. Allocated memory is still 186.6MB. Free memory was 145.9MB in the beginning and 72.5MB in the end (delta: 73.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2024-10-13 09:48:36,401 INFO L158 Benchmark]: Witness Printer took 2.63ms. Allocated memory is still 186.6MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 09:48:36,403 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 79.0MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 516.86ms. Allocated memory is still 186.6MB. Free memory was 115.8MB in the beginning and 86.4MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.17ms. Allocated memory is still 186.6MB. Free memory was 86.4MB in the beginning and 84.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.77ms. Allocated memory is still 186.6MB. Free memory was 84.3MB in the beginning and 83.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 382.79ms. Allocated memory is still 186.6MB. Free memory was 83.1MB in the beginning and 147.0MB in the end (delta: -63.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 911.95ms. Allocated memory is still 186.6MB. Free memory was 145.9MB in the beginning and 72.5MB in the end (delta: 73.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. * Witness Printer took 2.63ms. Allocated memory is still 186.6MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 991]: Data race detected Data race detected The following path leads to a data race: [L987] 0 int glob; VAL [glob=0] [L988] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, mutex={1:0}] [L996] 0 pthread_t id; VAL [glob=0, mutex={1:0}] [L997] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, glob=0, id=-1, mutex={1:0}] [L998] 0 glob++ VAL [\old(arg)={0:0}, glob=0, id=-1, mutex={1:0}] [L991] 1 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=0, mutex={1:0}] [L998] 0 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=1, id=-1, mutex={1:0}] [L991] 1 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=1, mutex={1:0}] Now there is a data race on ~glob~0 between C: glob++ [998] and C: glob++ [991] - UnprovableResult [Line: 998]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 998]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 997]: 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: 991]: 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, 74 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: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 16 mSDtfsCounter, 86 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=220occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 77 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-13 09:48:36,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE