./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/pthread-C-DAC/pthread-demo-datarace-2.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/pthread-C-DAC/pthread-demo-datarace-2.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 8dedc3ea8e96f333d418860556906c8618bbf50be75cff10b45de6d34fe23444 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:02:26,179 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:02:26,241 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:02:26,246 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:02:26,249 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:02:26,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:02:26,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:02:26,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:02:26,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:02:26,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:02:26,284 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:02:26,284 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:02:26,285 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:02:26,288 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:02:26,288 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:02:26,288 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:02:26,288 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:02:26,289 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:02:26,289 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:02:26,289 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:02:26,290 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:02:26,294 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:02:26,295 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:02:26,295 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:02:26,295 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:02:26,295 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:02:26,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:02:26,296 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:02:26,296 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:02:26,296 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:02:26,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:02:26,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:02:26,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:02:26,298 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:02:26,298 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:02:26,298 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:02:26,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:02:26,299 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:02:26,299 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:02:26,299 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:02:26,299 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:02:26,300 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dedc3ea8e96f333d418860556906c8618bbf50be75cff10b45de6d34fe23444 [2024-10-14 17:02:26,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:02:26,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:02:26,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:02:26,610 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:02:26,610 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:02:26,611 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-2.i [2024-10-14 17:02:28,080 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:02:28,386 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:02:28,387 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-2.i [2024-10-14 17:02:28,409 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47b58b231/7fed6ab756a5487885e7f29b8f019f75/FLAGa78525190 [2024-10-14 17:02:28,424 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47b58b231/7fed6ab756a5487885e7f29b8f019f75 [2024-10-14 17:02:28,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:02:28,430 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:02:28,431 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:02:28,431 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:02:28,437 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:02:28,438 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:02:28" (1/1) ... [2024-10-14 17:02:28,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6afc862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:28, skipping insertion in model container [2024-10-14 17:02:28,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:02:28" (1/1) ... [2024-10-14 17:02:28,494 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:02:28,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:02:29,001 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:02:29,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:02:29,130 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:02:29,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:29 WrapperNode [2024-10-14 17:02:29,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:02:29,132 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:02:29,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:02:29,132 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:02:29,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:29" (1/1) ... [2024-10-14 17:02:29,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:29" (1/1) ... [2024-10-14 17:02:29,172 INFO L138 Inliner]: procedures = 362, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2024-10-14 17:02:29,173 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:02:29,174 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:02:29,174 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:02:29,174 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:02:29,180 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:29" (1/1) ... [2024-10-14 17:02:29,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:29" (1/1) ... [2024-10-14 17:02:29,183 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:29" (1/1) ... [2024-10-14 17:02:29,183 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:29" (1/1) ... [2024-10-14 17:02:29,189 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:29" (1/1) ... [2024-10-14 17:02:29,191 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:29" (1/1) ... [2024-10-14 17:02:29,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:29" (1/1) ... [2024-10-14 17:02:29,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:29" (1/1) ... [2024-10-14 17:02:29,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:02:29,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:02:29,198 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:02:29,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:02:29,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:29" (1/1) ... [2024-10-14 17:02:29,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:02:29,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:02:29,236 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 17:02:29,239 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 17:02:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2024-10-14 17:02:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2024-10-14 17:02:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:02:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:02:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:02:29,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:02:29,290 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 17:02:29,447 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:02:29,449 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:02:29,621 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:02:29,622 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:02:29,638 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:02:29,638 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 17:02:29,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:02:29 BoogieIcfgContainer [2024-10-14 17:02:29,639 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:02:29,641 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:02:29,641 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:02:29,644 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:02:29,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:02:28" (1/3) ... [2024-10-14 17:02:29,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e63c73b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:02:29, skipping insertion in model container [2024-10-14 17:02:29,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:29" (2/3) ... [2024-10-14 17:02:29,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e63c73b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:02:29, skipping insertion in model container [2024-10-14 17:02:29,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:02:29" (3/3) ... [2024-10-14 17:02:29,647 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-2.i [2024-10-14 17:02:29,664 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:02:29,664 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-14 17:02:29,664 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:02:29,727 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-14 17:02:29,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 117 transitions, 241 flow [2024-10-14 17:02:29,864 INFO L124 PetriNetUnfolderBase]: 8/116 cut-off events. [2024-10-14 17:02:29,865 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:02:29,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 116 events. 8/116 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 117 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2024-10-14 17:02:29,871 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 117 transitions, 241 flow [2024-10-14 17:02:29,876 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 108 transitions, 222 flow [2024-10-14 17:02:29,890 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:02:29,898 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;@534ee5e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:02:29,899 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-14 17:02:29,913 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:02:29,916 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2024-10-14 17:02:29,916 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:02:29,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:29,917 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] [2024-10-14 17:02:29,919 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-14 17:02:29,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:29,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1896951683, now seen corresponding path program 1 times [2024-10-14 17:02:29,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:29,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653382949] [2024-10-14 17:02:29,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:29,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:30,160 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 17:02:30,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:30,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653382949] [2024-10-14 17:02:30,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653382949] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:30,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:30,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:02:30,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020808656] [2024-10-14 17:02:30,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:30,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:02:30,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:30,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:02:30,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:02:30,242 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 117 [2024-10-14 17:02:30,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 108 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 17:02:30,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:02:30,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 117 [2024-10-14 17:02:30,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:02:30,313 INFO L124 PetriNetUnfolderBase]: 18/202 cut-off events. [2024-10-14 17:02:30,313 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2024-10-14 17:02:30,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 202 events. 18/202 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 601 event pairs, 3 based on Foata normal form. 20/199 useless extension candidates. Maximal degree in co-relation 203. Up to 30 conditions per place. [2024-10-14 17:02:30,317 INFO L140 encePairwiseOnDemand]: 100/117 looper letters, 9 selfloop transitions, 6 changer transitions 15/103 dead transitions. [2024-10-14 17:02:30,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 103 transitions, 250 flow [2024-10-14 17:02:30,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:02:30,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:02:30,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2024-10-14 17:02:30,335 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8774928774928775 [2024-10-14 17:02:30,337 INFO L175 Difference]: Start difference. First operand has 104 places, 108 transitions, 222 flow. Second operand 3 states and 308 transitions. [2024-10-14 17:02:30,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 103 transitions, 250 flow [2024-10-14 17:02:30,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 103 transitions, 246 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:02:30,347 INFO L231 Difference]: Finished difference. Result has 101 places, 88 transitions, 217 flow [2024-10-14 17:02:30,349 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=217, PETRI_PLACES=101, PETRI_TRANSITIONS=88} [2024-10-14 17:02:30,356 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, -3 predicate places. [2024-10-14 17:02:30,357 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 88 transitions, 217 flow [2024-10-14 17:02:30,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 17:02:30,357 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:30,358 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] [2024-10-14 17:02:30,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:02:30,358 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-14 17:02:30,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:30,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1323224952, now seen corresponding path program 1 times [2024-10-14 17:02:30,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:30,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327952393] [2024-10-14 17:02:30,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:30,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:30,487 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 17:02:30,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:30,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327952393] [2024-10-14 17:02:30,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327952393] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:30,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:30,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:02:30,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681357281] [2024-10-14 17:02:30,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:30,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:02:30,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:30,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:02:30,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:02:30,529 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 117 [2024-10-14 17:02:30,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 88 transitions, 217 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 17:02:30,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:02:30,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 117 [2024-10-14 17:02:30,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:02:30,601 INFO L124 PetriNetUnfolderBase]: 36/243 cut-off events. [2024-10-14 17:02:30,602 INFO L125 PetriNetUnfolderBase]: For 103/127 co-relation queries the response was YES. [2024-10-14 17:02:30,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 243 events. 36/243 cut-off events. For 103/127 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 925 event pairs, 4 based on Foata normal form. 1/212 useless extension candidates. Maximal degree in co-relation 58. Up to 56 conditions per place. [2024-10-14 17:02:30,606 INFO L140 encePairwiseOnDemand]: 111/117 looper letters, 11 selfloop transitions, 7 changer transitions 0/93 dead transitions. [2024-10-14 17:02:30,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 93 transitions, 273 flow [2024-10-14 17:02:30,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:02:30,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:02:30,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2024-10-14 17:02:30,612 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8603988603988604 [2024-10-14 17:02:30,612 INFO L175 Difference]: Start difference. First operand has 101 places, 88 transitions, 217 flow. Second operand 3 states and 302 transitions. [2024-10-14 17:02:30,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 93 transitions, 273 flow [2024-10-14 17:02:30,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 93 transitions, 257 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:02:30,617 INFO L231 Difference]: Finished difference. Result has 88 places, 93 transitions, 261 flow [2024-10-14 17:02:30,618 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=261, PETRI_PLACES=88, PETRI_TRANSITIONS=93} [2024-10-14 17:02:30,618 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, -16 predicate places. [2024-10-14 17:02:30,619 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 93 transitions, 261 flow [2024-10-14 17:02:30,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 17:02:30,619 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:30,619 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, 1, 1, 1, 1, 1] [2024-10-14 17:02:30,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:02:30,620 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-14 17:02:30,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:30,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1827016617, now seen corresponding path program 1 times [2024-10-14 17:02:30,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:30,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010618857] [2024-10-14 17:02:30,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:30,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:30,700 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 17:02:30,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:30,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010618857] [2024-10-14 17:02:30,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010618857] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:30,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:30,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:02:30,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604145984] [2024-10-14 17:02:30,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:30,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:02:30,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:30,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:02:30,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:02:30,747 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 117 [2024-10-14 17:02:30,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 93 transitions, 261 flow. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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 17:02:30,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:02:30,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 117 [2024-10-14 17:02:30,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:02:30,802 INFO L124 PetriNetUnfolderBase]: 52/295 cut-off events. [2024-10-14 17:02:30,803 INFO L125 PetriNetUnfolderBase]: For 191/225 co-relation queries the response was YES. [2024-10-14 17:02:30,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 572 conditions, 295 events. 52/295 cut-off events. For 191/225 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1228 event pairs, 4 based on Foata normal form. 2/264 useless extension candidates. Maximal degree in co-relation 224. Up to 72 conditions per place. [2024-10-14 17:02:30,807 INFO L140 encePairwiseOnDemand]: 111/117 looper letters, 13 selfloop transitions, 9 changer transitions 0/98 dead transitions. [2024-10-14 17:02:30,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 98 transitions, 329 flow [2024-10-14 17:02:30,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:02:30,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:02:30,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2024-10-14 17:02:30,812 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2024-10-14 17:02:30,812 INFO L175 Difference]: Start difference. First operand has 88 places, 93 transitions, 261 flow. Second operand 3 states and 297 transitions. [2024-10-14 17:02:30,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 98 transitions, 329 flow [2024-10-14 17:02:30,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 98 transitions, 311 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:02:30,839 INFO L231 Difference]: Finished difference. Result has 90 places, 98 transitions, 315 flow [2024-10-14 17:02:30,839 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=315, PETRI_PLACES=90, PETRI_TRANSITIONS=98} [2024-10-14 17:02:30,840 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, -14 predicate places. [2024-10-14 17:02:30,840 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 98 transitions, 315 flow [2024-10-14 17:02:30,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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 17:02:30,840 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:30,840 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:02:30,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 17:02:30,841 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-14 17:02:30,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:30,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1522565069, now seen corresponding path program 1 times [2024-10-14 17:02:30,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:30,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128451150] [2024-10-14 17:02:30,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:30,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:02:30,871 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 17:02:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:02:30,911 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 17:02:30,913 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 17:02:30,914 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thread_function_dataraceErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2024-10-14 17:02:30,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-10-14 17:02:30,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-10-14 17:02:30,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-10-14 17:02:30,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-10-14 17:02:30,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 9 remaining) [2024-10-14 17:02:30,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_function_dataraceErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-10-14 17:02:30,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_function_dataraceErr1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-10-14 17:02:30,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_function_dataraceErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-10-14 17:02:30,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 17:02:30,919 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-14 17:02:30,970 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 17:02:30,970 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 17:02:30,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 05:02:30 BasicIcfg [2024-10-14 17:02:30,975 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 17:02:30,976 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 17:02:30,976 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 17:02:30,976 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 17:02:30,976 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:02:29" (3/4) ... [2024-10-14 17:02:30,978 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 17:02:30,979 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 17:02:30,980 INFO L158 Benchmark]: Toolchain (without parser) took 2550.47ms. Allocated memory is still 151.0MB. Free memory was 111.7MB in the beginning and 105.9MB in the end (delta: 5.8MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2024-10-14 17:02:30,980 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 17:02:30,981 INFO L158 Benchmark]: CACSL2BoogieTranslator took 700.19ms. Allocated memory is still 151.0MB. Free memory was 111.1MB in the beginning and 72.0MB in the end (delta: 39.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-10-14 17:02:30,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.48ms. Allocated memory is still 151.0MB. Free memory was 72.0MB in the beginning and 69.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 17:02:30,982 INFO L158 Benchmark]: Boogie Preprocessor took 23.04ms. Allocated memory is still 151.0MB. Free memory was 69.8MB in the beginning and 67.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 17:02:30,982 INFO L158 Benchmark]: RCFGBuilder took 442.23ms. Allocated memory is still 151.0MB. Free memory was 67.8MB in the beginning and 53.0MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-14 17:02:30,983 INFO L158 Benchmark]: TraceAbstraction took 1333.84ms. Allocated memory is still 151.0MB. Free memory was 52.4MB in the beginning and 107.0MB in the end (delta: -54.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 17:02:30,983 INFO L158 Benchmark]: Witness Printer took 3.77ms. Allocated memory is still 151.0MB. Free memory was 107.0MB in the beginning and 105.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 17:02:30,985 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 700.19ms. Allocated memory is still 151.0MB. Free memory was 111.1MB in the beginning and 72.0MB in the end (delta: 39.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.48ms. Allocated memory is still 151.0MB. Free memory was 72.0MB in the beginning and 69.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.04ms. Allocated memory is still 151.0MB. Free memory was 69.8MB in the beginning and 67.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 442.23ms. Allocated memory is still 151.0MB. Free memory was 67.8MB in the beginning and 53.0MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1333.84ms. Allocated memory is still 151.0MB. Free memory was 52.4MB in the beginning and 107.0MB in the end (delta: -54.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.77ms. Allocated memory is still 151.0MB. Free memory was 107.0MB in the beginning and 105.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1325]: Data race detected Data race detected The following path leads to a data race: [L1318] 0 int myglobal; VAL [myglobal=0] [L1319] 0 pthread_mutex_t mymutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [myglobal=0] [L1334] 0 pthread_t mythread; VAL [myglobal=0] [L1335] 0 int i; VAL [myglobal=0] [L1336] FCALL, FORK 0 pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0)) VAL [\old(arg)={0:0}, myglobal=0, mythread=-1] [L1322] 1 int i,j; VAL [\old(arg)={0:0}, arg={0:0}, myglobal=0] [L1323] 1 i=0 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1323] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1325] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1336] COND FALSE 0 !(pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0))) VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0, mythread=-1] [L1346] 0 i=0 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=0, mythread=-1] [L1346] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=0, mythread=-1] [L1348] EXPR 0 myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=0, mythread=-1] [L1348] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=1, mythread=-1] [L1325] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=1] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [1348] and C: j=myglobal [1325] - UnprovableResult [Line: 1348]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1354]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1348]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1355]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1336]: 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: 1328]: 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, 135 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 106 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 23 mSDtfsCounter, 89 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=315occurred 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, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 123 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 17:02:31,022 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