./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/03-practical_07-nonterm.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/goblint-regression/03-practical_07-nonterm.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 2562086a02be6998e1a5ce9ce305a1aab13bba69cf8f1d9765d0b8ae4c7e77e3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:48:00,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:48:00,526 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:48:00,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:48:00,532 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:48:00,555 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:48:00,555 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:48:00,556 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:48:00,556 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:48:00,557 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:48:00,558 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:48:00,558 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:48:00,558 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:48:00,558 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:48:00,558 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:48:00,559 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:48:00,559 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:48:00,559 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:48:00,559 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:48:00,559 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:48:00,560 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:48:00,563 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:48:00,563 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:48:00,563 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:48:00,563 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:48:00,563 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:48:00,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:48:00,563 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:48:00,564 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:48:00,564 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:48:00,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:48:00,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:48:00,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:48:00,564 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:48:00,564 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:48:00,564 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:48:00,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:48:00,565 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:48:00,565 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:48:00,565 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:48:00,565 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:48:00,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2562086a02be6998e1a5ce9ce305a1aab13bba69cf8f1d9765d0b8ae4c7e77e3 [2024-11-22 17:48:00,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:48:00,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:48:00,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:48:00,805 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:48:00,806 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:48:00,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/03-practical_07-nonterm.i [2024-11-22 17:48:02,229 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:48:02,654 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:48:02,659 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/03-practical_07-nonterm.i [2024-11-22 17:48:02,689 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/837b27682/fdaaa75d972144c283bd6c6e4d681649/FLAGa38cb9552 [2024-11-22 17:48:02,857 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/837b27682/fdaaa75d972144c283bd6c6e4d681649 [2024-11-22 17:48:02,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:48:02,864 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:48:02,865 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:48:02,865 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:48:02,874 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:48:02,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:48:02" (1/1) ... [2024-11-22 17:48:02,879 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f628736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:02, skipping insertion in model container [2024-11-22 17:48:02,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:48:02" (1/1) ... [2024-11-22 17:48:02,965 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:48:03,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:48:03,700 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:48:03,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:48:03,832 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:48:03,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:03 WrapperNode [2024-11-22 17:48:03,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:48:03,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:48:03,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:48:03,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:48:03,855 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:03" (1/1) ... [2024-11-22 17:48:03,880 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:03" (1/1) ... [2024-11-22 17:48:03,910 INFO L138 Inliner]: procedures = 262, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2024-11-22 17:48:03,912 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:48:03,912 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:48:03,913 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:48:03,916 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:48:03,927 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:03" (1/1) ... [2024-11-22 17:48:03,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:03" (1/1) ... [2024-11-22 17:48:03,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:03" (1/1) ... [2024-11-22 17:48:03,936 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:03" (1/1) ... [2024-11-22 17:48:03,943 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:03" (1/1) ... [2024-11-22 17:48:03,949 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:03" (1/1) ... [2024-11-22 17:48:03,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:03" (1/1) ... [2024-11-22 17:48:03,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:03" (1/1) ... [2024-11-22 17:48:03,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:48:03,968 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:48:03,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:48:03,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:48:03,972 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:03" (1/1) ... [2024-11-22 17:48:03,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:48:04,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:04,032 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) [2024-11-22 17:48:04,041 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 [2024-11-22 17:48:04,073 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 17:48:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 17:48:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:48:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-22 17:48:04,074 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-22 17:48:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:48:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:48:04,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:48:04,075 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 17:48:04,168 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:48:04,170 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:48:04,304 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:48:04,304 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:48:04,328 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:48:04,330 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 17:48:04,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:48:04 BoogieIcfgContainer [2024-11-22 17:48:04,330 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:48:04,332 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:48:04,332 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:48:04,335 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:48:04,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:48:02" (1/3) ... [2024-11-22 17:48:04,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a1c927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:48:04, skipping insertion in model container [2024-11-22 17:48:04,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:03" (2/3) ... [2024-11-22 17:48:04,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a1c927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:48:04, skipping insertion in model container [2024-11-22 17:48:04,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:48:04" (3/3) ... [2024-11-22 17:48:04,338 INFO L112 eAbstractionObserver]: Analyzing ICFG 03-practical_07-nonterm.i [2024-11-22 17:48:04,352 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:48:04,353 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-11-22 17:48:04,353 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:48:04,397 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-22 17:48:04,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 70 transitions, 147 flow [2024-11-22 17:48:04,451 INFO L124 PetriNetUnfolderBase]: 2/69 cut-off events. [2024-11-22 17:48:04,451 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:48:04,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 69 events. 2/69 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2024-11-22 17:48:04,455 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 70 transitions, 147 flow [2024-11-22 17:48:04,459 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 63 transitions, 132 flow [2024-11-22 17:48:04,466 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:48:04,472 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;@2dcdcc4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:48:04,472 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-22 17:48:04,482 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:48:04,482 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2024-11-22 17:48:04,483 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:48:04,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:04,483 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] [2024-11-22 17:48:04,484 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-22 17:48:04,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:04,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1620741108, now seen corresponding path program 1 times [2024-11-22 17:48:04,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:04,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900618788] [2024-11-22 17:48:04,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:04,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:04,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:04,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:04,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900618788] [2024-11-22 17:48:04,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900618788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:04,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:04,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:48:04,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536253649] [2024-11-22 17:48:04,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:04,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:48:04,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:04,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:48:04,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:48:04,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 70 [2024-11-22 17:48:04,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 132 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) [2024-11-22 17:48:04,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:04,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 70 [2024-11-22 17:48:04,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:04,871 INFO L124 PetriNetUnfolderBase]: 37/178 cut-off events. [2024-11-22 17:48:04,871 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:48:04,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 178 events. 37/178 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 666 event pairs, 13 based on Foata normal form. 9/170 useless extension candidates. Maximal degree in co-relation 232. Up to 44 conditions per place. [2024-11-22 17:48:04,874 INFO L140 encePairwiseOnDemand]: 60/70 looper letters, 17 selfloop transitions, 6 changer transitions 0/65 dead transitions. [2024-11-22 17:48:04,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 65 transitions, 179 flow [2024-11-22 17:48:04,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:48:04,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:48:04,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 182 transitions. [2024-11-22 17:48:04,884 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2024-11-22 17:48:04,886 INFO L175 Difference]: Start difference. First operand has 65 places, 63 transitions, 132 flow. Second operand 3 states and 182 transitions. [2024-11-22 17:48:04,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 65 transitions, 179 flow [2024-11-22 17:48:04,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 65 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:48:04,905 INFO L231 Difference]: Finished difference. Result has 61 places, 61 transitions, 164 flow [2024-11-22 17:48:04,908 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=61, PETRI_TRANSITIONS=61} [2024-11-22 17:48:04,930 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, -4 predicate places. [2024-11-22 17:48:04,930 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 61 transitions, 164 flow [2024-11-22 17:48:04,935 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) [2024-11-22 17:48:04,935 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:04,936 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] [2024-11-22 17:48:04,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:48:04,936 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-22 17:48:04,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:04,937 INFO L85 PathProgramCache]: Analyzing trace with hash -929891249, now seen corresponding path program 1 times [2024-11-22 17:48:04,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:04,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367799951] [2024-11-22 17:48:04,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:04,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:04,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:04,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:04,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367799951] [2024-11-22 17:48:04,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367799951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:04,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:04,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:48:04,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199775388] [2024-11-22 17:48:04,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:04,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:48:05,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:05,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:48:05,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:48:05,027 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 70 [2024-11-22 17:48:05,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 61 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2024-11-22 17:48:05,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:05,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 70 [2024-11-22 17:48:05,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:05,066 INFO L124 PetriNetUnfolderBase]: 53/220 cut-off events. [2024-11-22 17:48:05,066 INFO L125 PetriNetUnfolderBase]: For 89/93 co-relation queries the response was YES. [2024-11-22 17:48:05,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 220 events. 53/220 cut-off events. For 89/93 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 952 event pairs, 21 based on Foata normal form. 3/207 useless extension candidates. Maximal degree in co-relation 393. Up to 86 conditions per place. [2024-11-22 17:48:05,069 INFO L140 encePairwiseOnDemand]: 64/70 looper letters, 16 selfloop transitions, 7 changer transitions 1/68 dead transitions. [2024-11-22 17:48:05,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 68 transitions, 236 flow [2024-11-22 17:48:05,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:48:05,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:48:05,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 179 transitions. [2024-11-22 17:48:05,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8523809523809524 [2024-11-22 17:48:05,071 INFO L175 Difference]: Start difference. First operand has 61 places, 61 transitions, 164 flow. Second operand 3 states and 179 transitions. [2024-11-22 17:48:05,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 68 transitions, 236 flow [2024-11-22 17:48:05,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 68 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:48:05,073 INFO L231 Difference]: Finished difference. Result has 63 places, 66 transitions, 208 flow [2024-11-22 17:48:05,073 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=63, PETRI_TRANSITIONS=66} [2024-11-22 17:48:05,074 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, -2 predicate places. [2024-11-22 17:48:05,074 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 66 transitions, 208 flow [2024-11-22 17:48:05,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2024-11-22 17:48:05,074 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:05,074 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] [2024-11-22 17:48:05,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 17:48:05,075 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-22 17:48:05,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:05,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1429287567, now seen corresponding path program 1 times [2024-11-22 17:48:05,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:05,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863704085] [2024-11-22 17:48:05,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:05,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:05,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:05,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:05,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863704085] [2024-11-22 17:48:05,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863704085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:05,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:05,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:48:05,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150211637] [2024-11-22 17:48:05,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:05,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:48:05,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:05,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:48:05,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:48:05,157 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 70 [2024-11-22 17:48:05,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 66 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2024-11-22 17:48:05,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:05,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 70 [2024-11-22 17:48:05,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:05,197 INFO L124 PetriNetUnfolderBase]: 69/261 cut-off events. [2024-11-22 17:48:05,197 INFO L125 PetriNetUnfolderBase]: For 170/174 co-relation queries the response was YES. [2024-11-22 17:48:05,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 574 conditions, 261 events. 69/261 cut-off events. For 170/174 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1179 event pairs, 21 based on Foata normal form. 1/246 useless extension candidates. Maximal degree in co-relation 541. Up to 100 conditions per place. [2024-11-22 17:48:05,200 INFO L140 encePairwiseOnDemand]: 64/70 looper letters, 16 selfloop transitions, 8 changer transitions 6/73 dead transitions. [2024-11-22 17:48:05,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 73 transitions, 292 flow [2024-11-22 17:48:05,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:48:05,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:48:05,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2024-11-22 17:48:05,203 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8285714285714286 [2024-11-22 17:48:05,203 INFO L175 Difference]: Start difference. First operand has 63 places, 66 transitions, 208 flow. Second operand 3 states and 174 transitions. [2024-11-22 17:48:05,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 73 transitions, 292 flow [2024-11-22 17:48:05,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 73 transitions, 274 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:48:05,208 INFO L231 Difference]: Finished difference. Result has 65 places, 66 transitions, 232 flow [2024-11-22 17:48:05,208 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=65, PETRI_TRANSITIONS=66} [2024-11-22 17:48:05,208 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 0 predicate places. [2024-11-22 17:48:05,209 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 66 transitions, 232 flow [2024-11-22 17:48:05,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2024-11-22 17:48:05,209 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:05,209 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] [2024-11-22 17:48:05,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:48:05,209 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-22 17:48:05,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:05,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1715754266, now seen corresponding path program 1 times [2024-11-22 17:48:05,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:05,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525110778] [2024-11-22 17:48:05,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:05,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:48:05,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 17:48:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:48:05,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 17:48:05,254 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 17:48:05,255 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2024-11-22 17:48:05,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-22 17:48:05,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-22 17:48:05,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2024-11-22 17:48:05,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-22 17:48:05,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-22 17:48:05,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-22 17:48:05,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-22 17:48:05,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 17:48:05,257 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 17:48:05,299 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-22 17:48:05,299 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 17:48:05,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 05:48:05 BasicIcfg [2024-11-22 17:48:05,308 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 17:48:05,308 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 17:48:05,312 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 17:48:05,312 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 17:48:05,313 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:48:04" (3/4) ... [2024-11-22 17:48:05,313 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-22 17:48:05,354 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 17:48:05,354 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 17:48:05,354 INFO L158 Benchmark]: Toolchain (without parser) took 2490.25ms. Allocated memory is still 197.1MB. Free memory was 165.3MB in the beginning and 111.7MB in the end (delta: 53.6MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. [2024-11-22 17:48:05,354 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 121.6MB. Free memory was 82.1MB in the beginning and 81.9MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 17:48:05,355 INFO L158 Benchmark]: CACSL2BoogieTranslator took 977.79ms. Allocated memory is still 197.1MB. Free memory was 165.3MB in the beginning and 134.4MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-22 17:48:05,355 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.64ms. Allocated memory is still 197.1MB. Free memory was 134.4MB in the beginning and 132.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 17:48:05,355 INFO L158 Benchmark]: Boogie Preprocessor took 55.01ms. Allocated memory is still 197.1MB. Free memory was 131.2MB in the beginning and 130.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 17:48:05,355 INFO L158 Benchmark]: RCFGBuilder took 362.21ms. Allocated memory is still 197.1MB. Free memory was 130.2MB in the beginning and 115.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-22 17:48:05,356 INFO L158 Benchmark]: TraceAbstraction took 976.07ms. Allocated memory is still 197.1MB. Free memory was 114.4MB in the beginning and 114.9MB in the end (delta: -412.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 17:48:05,356 INFO L158 Benchmark]: Witness Printer took 45.43ms. Allocated memory is still 197.1MB. Free memory was 114.9MB in the beginning and 111.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 17:48:05,360 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 121.6MB. Free memory was 82.1MB in the beginning and 81.9MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 977.79ms. Allocated memory is still 197.1MB. Free memory was 165.3MB in the beginning and 134.4MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.64ms. Allocated memory is still 197.1MB. Free memory was 134.4MB in the beginning and 132.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.01ms. Allocated memory is still 197.1MB. Free memory was 131.2MB in the beginning and 130.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 362.21ms. Allocated memory is still 197.1MB. Free memory was 130.2MB in the beginning and 115.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 976.07ms. Allocated memory is still 197.1MB. Free memory was 114.4MB in the beginning and 114.9MB in the end (delta: -412.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 45.43ms. Allocated memory is still 197.1MB. Free memory was 114.9MB in the beginning and 111.7MB 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: 931]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, myglobal=0] [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L928] 0 pthread_t id; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L929] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L922] EXPR 1 myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L931] 0 myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L922] 1 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L931] 0 myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=1] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [922] and C: myglobal+1 [931] - UnprovableResult [Line: 931]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 929]: 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: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 922]: 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, 89 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 99 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 24 mSDtfsCounter, 119 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=232occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-22 17:48:05,379 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