./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/05-lval_ls_03-fld_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/goblint-regression/05-lval_ls_03-fld_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 ea1691da3b3ead7461cda0fc9c55e22acbd0265310a771538fdc0f048d539edf --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:49:04,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:49:04,437 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:49:04,440 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:49:04,441 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:49:04,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:49:04,463 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:49:04,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:49:04,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:49:04,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:49:04,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:49:04,466 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:49:04,466 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:49:04,466 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:49:04,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:49:04,469 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:49:04,469 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:49:04,469 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:49:04,470 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:49:04,470 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:49:04,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:49:04,487 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:49:04,487 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:49:04,488 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:49:04,488 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:49:04,488 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:49:04,488 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:49:04,489 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:49:04,489 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:49:04,490 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:49:04,490 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:49:04,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:49:04,491 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:49:04,492 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:49:04,492 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:49:04,492 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:49:04,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:49:04,493 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:49:04,493 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:49:04,493 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:49:04,493 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:49:04,497 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea1691da3b3ead7461cda0fc9c55e22acbd0265310a771538fdc0f048d539edf [2024-11-19 05:49:04,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:49:04,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:49:04,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:49:04,811 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:49:04,811 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:49:04,813 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/05-lval_ls_03-fld_rc.i [2024-11-19 05:49:06,246 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:49:06,515 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:49:06,516 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_03-fld_rc.i [2024-11-19 05:49:06,529 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2875e00e/e098c766461240dea26672bf15d17bb8/FLAG170a9dbfb [2024-11-19 05:49:06,821 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2875e00e/e098c766461240dea26672bf15d17bb8 [2024-11-19 05:49:06,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:49:06,828 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:49:06,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:49:06,830 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:49:06,835 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:49:06,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:49:06" (1/1) ... [2024-11-19 05:49:06,836 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@479495c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:06, skipping insertion in model container [2024-11-19 05:49:06,836 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:49:06" (1/1) ... [2024-11-19 05:49:06,877 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:49:07,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:49:07,270 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:49:07,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:49:07,363 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:49:07,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:07 WrapperNode [2024-11-19 05:49:07,364 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:49:07,365 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:49:07,365 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:49:07,366 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:49:07,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:07" (1/1) ... [2024-11-19 05:49:07,384 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:07" (1/1) ... [2024-11-19 05:49:07,409 INFO L138 Inliner]: procedures = 162, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2024-11-19 05:49:07,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:49:07,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:49:07,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:49:07,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:49:07,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:07" (1/1) ... [2024-11-19 05:49:07,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:07" (1/1) ... [2024-11-19 05:49:07,424 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:07" (1/1) ... [2024-11-19 05:49:07,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:07" (1/1) ... [2024-11-19 05:49:07,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:07" (1/1) ... [2024-11-19 05:49:07,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:07" (1/1) ... [2024-11-19 05:49:07,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:07" (1/1) ... [2024-11-19 05:49:07,438 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:07" (1/1) ... [2024-11-19 05:49:07,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:49:07,442 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:49:07,443 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:49:07,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:49:07,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:07" (1/1) ... [2024-11-19 05:49:07,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:49:07,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:07,480 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) [2024-11-19 05:49:07,485 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 [2024-11-19 05:49:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 05:49:07,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:49:07,534 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 05:49:07,534 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 05:49:07,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:49:07,534 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 05:49:07,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:49:07,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:49:07,536 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:49:07,690 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:49:07,692 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:49:07,840 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:49:07,841 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:49:07,868 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:49:07,870 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 05:49:07,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:49:07 BoogieIcfgContainer [2024-11-19 05:49:07,870 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:49:07,872 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:49:07,873 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:49:07,876 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:49:07,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:49:06" (1/3) ... [2024-11-19 05:49:07,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f00c4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:49:07, skipping insertion in model container [2024-11-19 05:49:07,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:07" (2/3) ... [2024-11-19 05:49:07,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f00c4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:49:07, skipping insertion in model container [2024-11-19 05:49:07,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:49:07" (3/3) ... [2024-11-19 05:49:07,880 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_03-fld_rc.i [2024-11-19 05:49:07,892 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:49:07,892 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-19 05:49:07,892 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:49:07,937 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 05:49:07,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 64 transitions, 132 flow [2024-11-19 05:49:08,011 INFO L124 PetriNetUnfolderBase]: 0/63 cut-off events. [2024-11-19 05:49:08,011 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:49:08,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 63 events. 0/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-19 05:49:08,019 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 64 transitions, 132 flow [2024-11-19 05:49:08,023 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 63 transitions, 129 flow [2024-11-19 05:49:08,036 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:49:08,043 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;@43b6b3d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:49:08,043 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-19 05:49:08,060 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:49:08,060 INFO L124 PetriNetUnfolderBase]: 0/33 cut-off events. [2024-11-19 05:49:08,061 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:49:08,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:08,062 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] [2024-11-19 05:49:08,062 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)] === [2024-11-19 05:49:08,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:08,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1359160312, now seen corresponding path program 1 times [2024-11-19 05:49:08,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:08,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59307478] [2024-11-19 05:49:08,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:08,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:08,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:08,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:08,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59307478] [2024-11-19 05:49:08,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59307478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:08,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:08,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:49:08,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581221577] [2024-11-19 05:49:08,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:08,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:49:08,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:08,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:49:08,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:49:08,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 64 [2024-11-19 05:49:08,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 63 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2024-11-19 05:49:08,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:08,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 64 [2024-11-19 05:49:08,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:08,516 INFO L124 PetriNetUnfolderBase]: 31/209 cut-off events. [2024-11-19 05:49:08,517 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:49:08,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 209 events. 31/209 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 883 event pairs, 13 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 263. Up to 44 conditions per place. [2024-11-19 05:49:08,522 INFO L140 encePairwiseOnDemand]: 56/64 looper letters, 17 selfloop transitions, 6 changer transitions 0/73 dead transitions. [2024-11-19 05:49:08,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 73 transitions, 195 flow [2024-11-19 05:49:08,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:49:08,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:49:08,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2024-11-19 05:49:08,535 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9270833333333334 [2024-11-19 05:49:08,537 INFO L175 Difference]: Start difference. First operand has 67 places, 63 transitions, 129 flow. Second operand 3 states and 178 transitions. [2024-11-19 05:49:08,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 73 transitions, 195 flow [2024-11-19 05:49:08,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 73 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:08,544 INFO L231 Difference]: Finished difference. Result has 70 places, 69 transitions, 180 flow [2024-11-19 05:49:08,546 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=70, PETRI_TRANSITIONS=69} [2024-11-19 05:49:08,550 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 3 predicate places. [2024-11-19 05:49:08,550 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 69 transitions, 180 flow [2024-11-19 05:49:08,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2024-11-19 05:49:08,551 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:08,551 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] [2024-11-19 05:49:08,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:49:08,552 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)] === [2024-11-19 05:49:08,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:08,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1139418879, now seen corresponding path program 1 times [2024-11-19 05:49:08,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:08,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541211477] [2024-11-19 05:49:08,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:08,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:08,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:08,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:08,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541211477] [2024-11-19 05:49:08,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541211477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:08,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:08,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:49:08,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652046950] [2024-11-19 05:49:08,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:08,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:49:08,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:08,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:49:08,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:49:08,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 64 [2024-11-19 05:49:08,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 69 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2024-11-19 05:49:08,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:08,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 64 [2024-11-19 05:49:08,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:08,794 INFO L124 PetriNetUnfolderBase]: 46/269 cut-off events. [2024-11-19 05:49:08,794 INFO L125 PetriNetUnfolderBase]: For 89/94 co-relation queries the response was YES. [2024-11-19 05:49:08,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 269 events. 46/269 cut-off events. For 89/94 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1313 event pairs, 21 based on Foata normal form. 3/253 useless extension candidates. Maximal degree in co-relation 442. Up to 86 conditions per place. [2024-11-19 05:49:08,797 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 16 selfloop transitions, 7 changer transitions 1/76 dead transitions. [2024-11-19 05:49:08,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 76 transitions, 252 flow [2024-11-19 05:49:08,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:49:08,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:49:08,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2024-11-19 05:49:08,803 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9010416666666666 [2024-11-19 05:49:08,804 INFO L175 Difference]: Start difference. First operand has 70 places, 69 transitions, 180 flow. Second operand 3 states and 173 transitions. [2024-11-19 05:49:08,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 76 transitions, 252 flow [2024-11-19 05:49:08,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 76 transitions, 236 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:49:08,809 INFO L231 Difference]: Finished difference. Result has 72 places, 74 transitions, 224 flow [2024-11-19 05:49:08,809 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=72, PETRI_TRANSITIONS=74} [2024-11-19 05:49:08,810 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 5 predicate places. [2024-11-19 05:49:08,810 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 74 transitions, 224 flow [2024-11-19 05:49:08,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2024-11-19 05:49:08,811 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:08,811 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] [2024-11-19 05:49:08,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:49:08,811 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)] === [2024-11-19 05:49:08,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:08,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1911021996, now seen corresponding path program 1 times [2024-11-19 05:49:08,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:08,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691744247] [2024-11-19 05:49:08,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:08,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:08,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:08,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:08,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691744247] [2024-11-19 05:49:08,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691744247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:08,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:08,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:49:08,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852561242] [2024-11-19 05:49:08,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:08,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:49:08,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:08,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:49:08,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:49:08,930 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 64 [2024-11-19 05:49:08,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 74 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2024-11-19 05:49:08,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:08,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 64 [2024-11-19 05:49:08,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:08,995 INFO L124 PetriNetUnfolderBase]: 65/336 cut-off events. [2024-11-19 05:49:08,995 INFO L125 PetriNetUnfolderBase]: For 208/216 co-relation queries the response was YES. [2024-11-19 05:49:08,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 674 conditions, 336 events. 65/336 cut-off events. For 208/216 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1767 event pairs, 25 based on Foata normal form. 2/320 useless extension candidates. Maximal degree in co-relation 641. Up to 115 conditions per place. [2024-11-19 05:49:09,000 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 17 selfloop transitions, 7 changer transitions 7/81 dead transitions. [2024-11-19 05:49:09,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 81 transitions, 310 flow [2024-11-19 05:49:09,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:49:09,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:49:09,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2024-11-19 05:49:09,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8802083333333334 [2024-11-19 05:49:09,004 INFO L175 Difference]: Start difference. First operand has 72 places, 74 transitions, 224 flow. Second operand 3 states and 169 transitions. [2024-11-19 05:49:09,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 81 transitions, 310 flow [2024-11-19 05:49:09,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 81 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:49:09,010 INFO L231 Difference]: Finished difference. Result has 74 places, 73 transitions, 242 flow [2024-11-19 05:49:09,011 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=74, PETRI_TRANSITIONS=73} [2024-11-19 05:49:09,011 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 7 predicate places. [2024-11-19 05:49:09,011 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 73 transitions, 242 flow [2024-11-19 05:49:09,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2024-11-19 05:49:09,012 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:09,012 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] [2024-11-19 05:49:09,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:49:09,013 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)] === [2024-11-19 05:49:09,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:09,013 INFO L85 PathProgramCache]: Analyzing trace with hash -774714209, now seen corresponding path program 1 times [2024-11-19 05:49:09,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:09,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110616433] [2024-11-19 05:49:09,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:09,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:49:09,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:49:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:49:09,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:49:09,099 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:49:09,100 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-11-19 05:49:09,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-19 05:49:09,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-19 05:49:09,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-19 05:49:09,106 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-19 05:49:09,106 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-19 05:49:09,106 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-19 05:49:09,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:49:09,108 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 05:49:09,144 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 05:49:09,145 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 05:49:09,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:49:09 BasicIcfg [2024-11-19 05:49:09,151 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 05:49:09,153 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 05:49:09,153 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 05:49:09,153 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 05:49:09,154 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:49:07" (3/4) ... [2024-11-19 05:49:09,155 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-19 05:49:09,210 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 05:49:09,210 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 05:49:09,211 INFO L158 Benchmark]: Toolchain (without parser) took 2383.04ms. Allocated memory is still 180.4MB. Free memory was 117.4MB in the beginning and 98.7MB in the end (delta: 18.7MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2024-11-19 05:49:09,211 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 96.5MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 05:49:09,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 534.86ms. Allocated memory is still 180.4MB. Free memory was 117.4MB in the beginning and 141.3MB in the end (delta: -24.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-19 05:49:09,211 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.16ms. Allocated memory is still 180.4MB. Free memory was 141.3MB in the beginning and 139.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 05:49:09,212 INFO L158 Benchmark]: Boogie Preprocessor took 31.74ms. Allocated memory is still 180.4MB. Free memory was 139.2MB in the beginning and 137.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 05:49:09,212 INFO L158 Benchmark]: RCFGBuilder took 428.05ms. Allocated memory is still 180.4MB. Free memory was 137.9MB in the beginning and 124.0MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 05:49:09,213 INFO L158 Benchmark]: TraceAbstraction took 1278.23ms. Allocated memory is still 180.4MB. Free memory was 123.2MB in the beginning and 101.8MB in the end (delta: 21.4MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2024-11-19 05:49:09,213 INFO L158 Benchmark]: Witness Printer took 57.49ms. Allocated memory is still 180.4MB. Free memory was 101.8MB in the beginning and 98.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 05:49:09,218 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 96.5MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 534.86ms. Allocated memory is still 180.4MB. Free memory was 117.4MB in the beginning and 141.3MB in the end (delta: -24.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.16ms. Allocated memory is still 180.4MB. Free memory was 141.3MB in the beginning and 139.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.74ms. Allocated memory is still 180.4MB. Free memory was 139.2MB in the beginning and 137.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 428.05ms. Allocated memory is still 180.4MB. Free memory was 137.9MB in the beginning and 124.0MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1278.23ms. Allocated memory is still 180.4MB. Free memory was 123.2MB in the beginning and 101.8MB in the end (delta: 21.4MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Witness Printer took 57.49ms. Allocated memory is still 180.4MB. Free memory was 101.8MB in the beginning and 98.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 696]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int glob; VAL [glob=0] [L680-L683] 0 struct { pthread_mutex_t x; pthread_mutex_t y; } m; VAL [glob=0, m={1:0}] [L693] 0 pthread_t id; VAL [glob=0, m={1:0}] [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, glob=0, id=-1, m={1:0}] [L686] 1 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=0, m={1:0}] [L696] 0 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=0, id=-1, m={1:0}] [L686] 1 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=1, m={1:0}] [L696] 0 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=1, id=-1, m={1:0}] Now there is a data race on ~glob~0 between C: glob++ [686] and C: glob++ [696] - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: 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: 686]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 686]: 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, 85 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: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 6 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=242occurred 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, 0.3s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 101 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! [2024-11-19 05:49:09,248 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