./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/04-mutex_16-ps_add1_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 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/04-mutex_16-ps_add1_rc.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 f6ac8e3fa6c8942d1934329d4aab2bad69a86bc8873927fe052914d5204c0486 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:03:51,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:03:51,807 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:03:51,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:03:51,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:03:51,825 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:03:51,825 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:03:51,826 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:03:51,826 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:03:51,826 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:03:51,827 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:03:51,827 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:03:51,827 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:03:51,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:03:51,828 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:03:51,828 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:03:51,829 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:03:51,829 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:03:51,829 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:03:51,830 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:03:51,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:03:51,830 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:03:51,831 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:03:51,831 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:03:51,831 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:03:51,832 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:03:51,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:03:51,832 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:03:51,832 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:03:51,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:03:51,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:03:51,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:03:51,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:03:51,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:03:51,834 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:03:51,834 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:03:51,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:03:51,835 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:03:51,835 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:03:51,835 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:03:51,835 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:03:51,838 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6ac8e3fa6c8942d1934329d4aab2bad69a86bc8873927fe052914d5204c0486 [2024-10-14 17:03:52,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:03:52,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:03:52,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:03:52,096 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:03:52,098 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:03:52,100 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i [2024-10-14 17:03:53,399 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:03:53,628 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:03:53,629 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i [2024-10-14 17:03:53,646 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4561cdd4d/433ad6317350422e80e0cd98a263b2d6/FLAGc29b7c5b1 [2024-10-14 17:03:53,665 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4561cdd4d/433ad6317350422e80e0cd98a263b2d6 [2024-10-14 17:03:53,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:03:53,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:03:53,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:03:53,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:03:53,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:03:53,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:03:53" (1/1) ... [2024-10-14 17:03:53,681 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6625ee90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:53, skipping insertion in model container [2024-10-14 17:03:53,681 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:03:53" (1/1) ... [2024-10-14 17:03:53,726 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:03:54,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:03:54,112 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:03:54,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:03:54,204 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:03:54,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:54 WrapperNode [2024-10-14 17:03:54,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:03:54,206 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:03:54,206 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:03:54,206 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:03:54,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:54" (1/1) ... [2024-10-14 17:03:54,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:54" (1/1) ... [2024-10-14 17:03:54,241 INFO L138 Inliner]: procedures = 266, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2024-10-14 17:03:54,242 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:03:54,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:03:54,243 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:03:54,243 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:03:54,249 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:54" (1/1) ... [2024-10-14 17:03:54,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:54" (1/1) ... [2024-10-14 17:03:54,252 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:54" (1/1) ... [2024-10-14 17:03:54,252 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:54" (1/1) ... [2024-10-14 17:03:54,257 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:54" (1/1) ... [2024-10-14 17:03:54,259 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:54" (1/1) ... [2024-10-14 17:03:54,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:54" (1/1) ... [2024-10-14 17:03:54,261 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:54" (1/1) ... [2024-10-14 17:03:54,263 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:03:54,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:03:54,264 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:03:54,264 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:03:54,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:54" (1/1) ... [2024-10-14 17:03:54,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:03:54,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:03:54,331 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) [2024-10-14 17:03:54,344 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 [2024-10-14 17:03:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 17:03:54,387 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 17:03:54,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:03:54,387 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-14 17:03:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-14 17:03:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:03:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:03:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:03:54,389 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:03:54,523 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:03:54,525 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:03:54,660 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:03:54,661 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:03:54,684 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:03:54,685 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 17:03:54,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:03:54 BoogieIcfgContainer [2024-10-14 17:03:54,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:03:54,686 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:03:54,686 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:03:54,690 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:03:54,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:03:53" (1/3) ... [2024-10-14 17:03:54,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@172e1a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:03:54, skipping insertion in model container [2024-10-14 17:03:54,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:54" (2/3) ... [2024-10-14 17:03:54,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@172e1a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:03:54, skipping insertion in model container [2024-10-14 17:03:54,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:03:54" (3/3) ... [2024-10-14 17:03:54,693 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_16-ps_add1_rc.i [2024-10-14 17:03:54,706 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:03:54,706 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-14 17:03:54,706 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:03:54,750 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 17:03:54,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 75 transitions, 154 flow [2024-10-14 17:03:54,819 INFO L124 PetriNetUnfolderBase]: 3/74 cut-off events. [2024-10-14 17:03:54,820 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:03:54,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2024-10-14 17:03:54,826 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 75 transitions, 154 flow [2024-10-14 17:03:54,830 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 74 transitions, 151 flow [2024-10-14 17:03:54,839 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:03:54,847 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;@7b52e5a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:03:54,847 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-14 17:03:54,856 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:03:54,856 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2024-10-14 17:03:54,856 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:03:54,856 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:54,857 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] [2024-10-14 17:03:54,859 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 17:03:54,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:54,863 INFO L85 PathProgramCache]: Analyzing trace with hash -956363907, now seen corresponding path program 1 times [2024-10-14 17:03:54,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:54,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882621682] [2024-10-14 17:03:54,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:54,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:55,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:55,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:55,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882621682] [2024-10-14 17:03:55,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882621682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:55,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:55,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:03:55,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675955213] [2024-10-14 17:03:55,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:55,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:03:55,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:55,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:03:55,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:03:55,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 75 [2024-10-14 17:03:55,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 74 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2024-10-14 17:03:55,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:55,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 75 [2024-10-14 17:03:55,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:55,244 INFO L124 PetriNetUnfolderBase]: 41/259 cut-off events. [2024-10-14 17:03:55,244 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:03:55,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 259 events. 41/259 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1175 event pairs, 10 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 320. Up to 43 conditions per place. [2024-10-14 17:03:55,252 INFO L140 encePairwiseOnDemand]: 67/75 looper letters, 17 selfloop transitions, 6 changer transitions 0/84 dead transitions. [2024-10-14 17:03:55,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 84 transitions, 217 flow [2024-10-14 17:03:55,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:03:55,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:03:55,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 211 transitions. [2024-10-14 17:03:55,274 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9377777777777778 [2024-10-14 17:03:55,276 INFO L175 Difference]: Start difference. First operand has 75 places, 74 transitions, 151 flow. Second operand 3 states and 211 transitions. [2024-10-14 17:03:55,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 84 transitions, 217 flow [2024-10-14 17:03:55,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 84 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:03:55,292 INFO L231 Difference]: Finished difference. Result has 78 places, 80 transitions, 202 flow [2024-10-14 17:03:55,294 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=78, PETRI_TRANSITIONS=80} [2024-10-14 17:03:55,327 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, 3 predicate places. [2024-10-14 17:03:55,327 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 80 transitions, 202 flow [2024-10-14 17:03:55,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2024-10-14 17:03:55,328 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:55,328 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, 1] [2024-10-14 17:03:55,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:03:55,328 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 17:03:55,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:55,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1730822716, now seen corresponding path program 1 times [2024-10-14 17:03:55,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:55,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594992856] [2024-10-14 17:03:55,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:55,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:55,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:55,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594992856] [2024-10-14 17:03:55,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594992856] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:55,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:55,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:03:55,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134148694] [2024-10-14 17:03:55,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:55,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:03:55,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:55,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:03:55,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:03:55,461 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 75 [2024-10-14 17:03:55,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 80 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2024-10-14 17:03:55,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:55,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 75 [2024-10-14 17:03:55,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:55,530 INFO L124 PetriNetUnfolderBase]: 62/322 cut-off events. [2024-10-14 17:03:55,531 INFO L125 PetriNetUnfolderBase]: For 102/128 co-relation queries the response was YES. [2024-10-14 17:03:55,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 322 events. 62/322 cut-off events. For 102/128 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1599 event pairs, 16 based on Foata normal form. 1/278 useless extension candidates. Maximal degree in co-relation 515. Up to 93 conditions per place. [2024-10-14 17:03:55,534 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 16 selfloop transitions, 7 changer transitions 2/87 dead transitions. [2024-10-14 17:03:55,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 87 transitions, 274 flow [2024-10-14 17:03:55,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:03:55,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:03:55,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2024-10-14 17:03:55,536 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9155555555555556 [2024-10-14 17:03:55,537 INFO L175 Difference]: Start difference. First operand has 78 places, 80 transitions, 202 flow. Second operand 3 states and 206 transitions. [2024-10-14 17:03:55,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 87 transitions, 274 flow [2024-10-14 17:03:55,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 87 transitions, 258 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:03:55,539 INFO L231 Difference]: Finished difference. Result has 80 places, 84 transitions, 244 flow [2024-10-14 17:03:55,539 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=80, PETRI_TRANSITIONS=84} [2024-10-14 17:03:55,539 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, 5 predicate places. [2024-10-14 17:03:55,540 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 84 transitions, 244 flow [2024-10-14 17:03:55,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2024-10-14 17:03:55,540 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:55,540 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:55,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:03:55,540 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 17:03:55,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:55,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1406133477, now seen corresponding path program 1 times [2024-10-14 17:03:55,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:55,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102494378] [2024-10-14 17:03:55,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:55,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:55,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:55,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:55,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102494378] [2024-10-14 17:03:55,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102494378] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:55,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:55,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:03:55,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108466075] [2024-10-14 17:03:55,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:55,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:03:55,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:55,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:03:55,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:03:55,637 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 75 [2024-10-14 17:03:55,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 84 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2024-10-14 17:03:55,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:55,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 75 [2024-10-14 17:03:55,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:55,681 INFO L124 PetriNetUnfolderBase]: 75/395 cut-off events. [2024-10-14 17:03:55,681 INFO L125 PetriNetUnfolderBase]: For 196/218 co-relation queries the response was YES. [2024-10-14 17:03:55,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 395 events. 75/395 cut-off events. For 196/218 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2027 event pairs, 17 based on Foata normal form. 1/363 useless extension candidates. Maximal degree in co-relation 691. Up to 99 conditions per place. [2024-10-14 17:03:55,683 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 16 selfloop transitions, 7 changer transitions 7/92 dead transitions. [2024-10-14 17:03:55,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 92 transitions, 332 flow [2024-10-14 17:03:55,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:03:55,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:03:55,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 205 transitions. [2024-10-14 17:03:55,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2024-10-14 17:03:55,685 INFO L175 Difference]: Start difference. First operand has 80 places, 84 transitions, 244 flow. Second operand 3 states and 205 transitions. [2024-10-14 17:03:55,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 92 transitions, 332 flow [2024-10-14 17:03:55,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 92 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:03:55,688 INFO L231 Difference]: Finished difference. Result has 82 places, 84 transitions, 266 flow [2024-10-14 17:03:55,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=82, PETRI_TRANSITIONS=84} [2024-10-14 17:03:55,688 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, 7 predicate places. [2024-10-14 17:03:55,689 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 84 transitions, 266 flow [2024-10-14 17:03:55,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2024-10-14 17:03:55,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:55,689 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:55,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 17:03:55,689 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 17:03:55,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:55,690 INFO L85 PathProgramCache]: Analyzing trace with hash 107549499, now seen corresponding path program 1 times [2024-10-14 17:03:55,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:55,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191158316] [2024-10-14 17:03:55,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:55,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:03:55,718 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 17:03:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:03:55,766 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 17:03:55,769 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 17:03:55,773 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-10-14 17:03:55,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-10-14 17:03:55,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-10-14 17:03:55,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-10-14 17:03:55,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-10-14 17:03:55,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-10-14 17:03:55,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-10-14 17:03:55,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 17:03:55,775 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-14 17:03:55,827 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 17:03:55,831 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 17:03:55,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 05:03:55 BasicIcfg [2024-10-14 17:03:55,844 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 17:03:55,845 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 17:03:55,845 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 17:03:55,845 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 17:03:55,845 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:03:54" (3/4) ... [2024-10-14 17:03:55,846 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 17:03:55,847 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 17:03:55,851 INFO L158 Benchmark]: Toolchain (without parser) took 2181.12ms. Allocated memory is still 174.1MB. Free memory was 105.6MB in the beginning and 85.3MB in the end (delta: 20.3MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2024-10-14 17:03:55,852 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 174.1MB. Free memory was 134.1MB in the beginning and 133.9MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 17:03:55,852 INFO L158 Benchmark]: CACSL2BoogieTranslator took 531.89ms. Allocated memory is still 174.1MB. Free memory was 105.4MB in the beginning and 125.5MB in the end (delta: -20.1MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2024-10-14 17:03:55,852 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.43ms. Allocated memory is still 174.1MB. Free memory was 125.5MB in the beginning and 123.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 17:03:55,854 INFO L158 Benchmark]: Boogie Preprocessor took 20.55ms. Allocated memory is still 174.1MB. Free memory was 123.4MB in the beginning and 122.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 17:03:55,855 INFO L158 Benchmark]: RCFGBuilder took 421.35ms. Allocated memory is still 174.1MB. Free memory was 122.2MB in the beginning and 107.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-14 17:03:55,856 INFO L158 Benchmark]: TraceAbstraction took 1157.78ms. Allocated memory is still 174.1MB. Free memory was 106.6MB in the beginning and 86.4MB in the end (delta: 20.3MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2024-10-14 17:03:55,857 INFO L158 Benchmark]: Witness Printer took 6.50ms. Allocated memory is still 174.1MB. Free memory was 86.4MB in the beginning and 85.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 17:03:55,858 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 174.1MB. Free memory was 134.1MB in the beginning and 133.9MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 531.89ms. Allocated memory is still 174.1MB. Free memory was 105.4MB in the beginning and 125.5MB in the end (delta: -20.1MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.43ms. Allocated memory is still 174.1MB. Free memory was 125.5MB in the beginning and 123.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.55ms. Allocated memory is still 174.1MB. Free memory was 123.4MB in the beginning and 122.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 421.35ms. Allocated memory is still 174.1MB. Free memory was 122.2MB in the beginning and 107.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1157.78ms. Allocated memory is still 174.1MB. Free memory was 106.6MB in the beginning and 86.4MB in the end (delta: 20.3MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * Witness Printer took 6.50ms. Allocated memory is still 174.1MB. Free memory was 86.4MB in the beginning and 85.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 946]: Data race detected Data race detected The following path leads to a data race: [L928] 0 int glob; VAL [glob=0] [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, m={1:0}] [L937] 0 int i = __VERIFIER_nondet_int(); VAL [glob=0, i=0, m={1:0}] [L938] 0 pthread_t id; VAL [glob=0, i=0, m={1:0}] [L939] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, glob=0, i=0, id=-1, m={1:0}] [L932] 1 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=0, m={1:0}] [L941] COND FALSE 0 !(\read(i)) VAL [\old(arg)={0:0}, arg={0:0}, glob=0, i=0, id=-1, m={1:0}] [L944] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, glob=0, i=1, id=-1, m={1:0}] [L945] COND TRUE 0 \read(i) VAL [\old(arg)={0:0}, arg={0:0}, glob=0, i=1, id=-1, m={1:0}] [L946] 0 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=0, i=1, id=-1, m={1:0}] [L932] 1 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=1, m={1:0}] [L946] 0 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=1, i=1, id=-1, m={1:0}] Now there is a data race on ~glob~0 between C: glob++ [932] and C: glob++ [946] - UnprovableResult [Line: 946]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: 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: 932]: 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 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, 93 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: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 16 mSDtfsCounter, 94 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=266occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 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! [2024-10-14 17:03:55,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE