./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.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 16b41d7352a3e7bca6c65d29839f35cd9a045339e5497acb7d0d6bf7ecef2ad7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:26:07,590 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:26:07,688 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:26:07,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:26:07,695 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:26:07,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:26:07,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:26:07,730 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:26:07,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:26:07,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:26:07,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:26:07,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:26:07,732 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:26:07,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:26:07,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:26:07,735 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:26:07,735 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:26:07,736 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:26:07,739 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:26:07,739 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:26:07,740 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:26:07,740 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:26:07,740 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:26:07,741 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:26:07,741 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:26:07,741 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:26:07,742 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:26:07,742 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:26:07,742 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:26:07,742 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:26:07,742 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:26:07,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:26:07,743 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:26:07,743 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:26:07,743 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:26:07,743 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:26:07,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:26:07,744 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:26:07,744 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:26:07,744 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:26:07,745 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:26:07,745 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16b41d7352a3e7bca6c65d29839f35cd9a045339e5497acb7d0d6bf7ecef2ad7 [2024-10-24 15:26:08,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:26:08,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:26:08,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:26:08,033 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:26:08,033 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:26:08,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2024-10-24 15:26:09,506 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:26:09,776 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:26:09,777 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2024-10-24 15:26:09,793 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18471abe8/90b39ecd6c304ec28874413e0973a74e/FLAG2c34df38f [2024-10-24 15:26:09,809 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18471abe8/90b39ecd6c304ec28874413e0973a74e [2024-10-24 15:26:09,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:26:09,812 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:26:09,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:26:09,816 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:26:09,822 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:26:09,823 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:26:09" (1/1) ... [2024-10-24 15:26:09,826 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69521c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:09, skipping insertion in model container [2024-10-24 15:26:09,826 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:26:09" (1/1) ... [2024-10-24 15:26:09,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:26:10,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:26:10,650 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:26:10,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:26:10,814 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:26:10,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:10 WrapperNode [2024-10-24 15:26:10,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:26:10,823 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:26:10,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:26:10,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:26:10,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:10" (1/1) ... [2024-10-24 15:26:10,868 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:10" (1/1) ... [2024-10-24 15:26:10,916 INFO L138 Inliner]: procedures = 162, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2024-10-24 15:26:10,917 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:26:10,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:26:10,920 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:26:10,920 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:26:10,933 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:10" (1/1) ... [2024-10-24 15:26:10,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:10" (1/1) ... [2024-10-24 15:26:10,946 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:10" (1/1) ... [2024-10-24 15:26:10,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:10" (1/1) ... [2024-10-24 15:26:10,955 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:10" (1/1) ... [2024-10-24 15:26:10,961 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:10" (1/1) ... [2024-10-24 15:26:10,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:10" (1/1) ... [2024-10-24 15:26:10,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:10" (1/1) ... [2024-10-24 15:26:10,972 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:26:10,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:26:10,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:26:10,980 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:26:10,981 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:10" (1/1) ... [2024-10-24 15:26:10,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:26:11,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:26:11,059 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:26:11,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:26:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:26:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:26:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 15:26:11,124 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 15:26:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:26:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:26:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:26:11,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:26:11,127 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:26:11,356 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:26:11,358 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:26:11,558 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:26:11,558 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:26:11,618 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:26:11,618 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 15:26:11,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:26:11 BoogieIcfgContainer [2024-10-24 15:26:11,618 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:26:11,621 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:26:11,621 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:26:11,624 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:26:11,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:26:09" (1/3) ... [2024-10-24 15:26:11,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96ef62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:26:11, skipping insertion in model container [2024-10-24 15:26:11,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:10" (2/3) ... [2024-10-24 15:26:11,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96ef62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:26:11, skipping insertion in model container [2024-10-24 15:26:11,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:26:11" (3/3) ... [2024-10-24 15:26:11,627 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_31-traces-mine-vs-mutex_true.i [2024-10-24 15:26:11,643 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:26:11,643 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-10-24 15:26:11,643 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:26:11,711 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 15:26:11,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 101 transitions, 209 flow [2024-10-24 15:26:11,814 INFO L124 PetriNetUnfolderBase]: 2/100 cut-off events. [2024-10-24 15:26:11,815 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:26:11,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 100 events. 2/100 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2024-10-24 15:26:11,824 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 101 transitions, 209 flow [2024-10-24 15:26:11,828 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 95 transitions, 193 flow [2024-10-24 15:26:11,841 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:26:11,854 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;@42442e14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:26:11,854 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-24 15:26:11,874 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:26:11,875 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2024-10-24 15:26:11,875 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:26:11,875 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:26:11,876 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] [2024-10-24 15:26:11,877 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-24 15:26:11,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:26:11,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1844616693, now seen corresponding path program 1 times [2024-10-24 15:26:11,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:26:11,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983950005] [2024-10-24 15:26:11,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:26:11,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:26:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:26:12,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:26:12,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:26:12,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983950005] [2024-10-24 15:26:12,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983950005] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:26:12,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:26:12,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:26:12,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560488321] [2024-10-24 15:26:12,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:26:12,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:26:12,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:26:12,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:26:12,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:26:12,295 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 101 [2024-10-24 15:26:12,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 95 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:26:12,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:26:12,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 101 [2024-10-24 15:26:12,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:26:12,524 INFO L124 PetriNetUnfolderBase]: 115/600 cut-off events. [2024-10-24 15:26:12,524 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:26:12,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 869 conditions, 600 events. 115/600 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3347 event pairs, 46 based on Foata normal form. 34/590 useless extension candidates. Maximal degree in co-relation 835. Up to 140 conditions per place. [2024-10-24 15:26:12,531 INFO L140 encePairwiseOnDemand]: 90/101 looper letters, 30 selfloop transitions, 6 changer transitions 2/105 dead transitions. [2024-10-24 15:26:12,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 105 transitions, 289 flow [2024-10-24 15:26:12,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:26:12,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:26:12,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2024-10-24 15:26:12,544 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8712871287128713 [2024-10-24 15:26:12,548 INFO L175 Difference]: Start difference. First operand has 97 places, 95 transitions, 193 flow. Second operand 3 states and 264 transitions. [2024-10-24 15:26:12,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 105 transitions, 289 flow [2024-10-24 15:26:12,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 105 transitions, 288 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:26:12,559 INFO L231 Difference]: Finished difference. Result has 96 places, 93 transitions, 222 flow [2024-10-24 15:26:12,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=96, PETRI_TRANSITIONS=93} [2024-10-24 15:26:12,571 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, -1 predicate places. [2024-10-24 15:26:12,571 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 93 transitions, 222 flow [2024-10-24 15:26:12,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:26:12,572 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:26:12,572 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:26:12,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:26:12,572 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-24 15:26:12,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:26:12,573 INFO L85 PathProgramCache]: Analyzing trace with hash 212496385, now seen corresponding path program 1 times [2024-10-24 15:26:12,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:26:12,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084855970] [2024-10-24 15:26:12,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:26:12,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:26:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:26:12,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:26:12,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:26:12,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084855970] [2024-10-24 15:26:12,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084855970] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:26:12,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:26:12,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:26:12,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065405606] [2024-10-24 15:26:12,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:26:12,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:26:12,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:26:12,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:26:12,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:26:12,759 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 101 [2024-10-24 15:26:12,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 93 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:26:12,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:26:12,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 101 [2024-10-24 15:26:12,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:26:12,907 INFO L124 PetriNetUnfolderBase]: 120/614 cut-off events. [2024-10-24 15:26:12,908 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2024-10-24 15:26:12,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1010 conditions, 614 events. 120/614 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3503 event pairs, 84 based on Foata normal form. 0/570 useless extension candidates. Maximal degree in co-relation 975. Up to 233 conditions per place. [2024-10-24 15:26:12,912 INFO L140 encePairwiseOnDemand]: 96/101 looper letters, 30 selfloop transitions, 4 changer transitions 0/102 dead transitions. [2024-10-24 15:26:12,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 102 transitions, 312 flow [2024-10-24 15:26:12,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:26:12,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:26:12,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2024-10-24 15:26:12,916 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8481848184818482 [2024-10-24 15:26:12,916 INFO L175 Difference]: Start difference. First operand has 96 places, 93 transitions, 222 flow. Second operand 3 states and 257 transitions. [2024-10-24 15:26:12,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 102 transitions, 312 flow [2024-10-24 15:26:12,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 102 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:26:12,920 INFO L231 Difference]: Finished difference. Result has 98 places, 96 transitions, 242 flow [2024-10-24 15:26:12,921 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=98, PETRI_TRANSITIONS=96} [2024-10-24 15:26:12,922 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 1 predicate places. [2024-10-24 15:26:12,922 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 96 transitions, 242 flow [2024-10-24 15:26:12,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:26:12,923 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:26:12,923 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:26:12,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:26:12,924 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-24 15:26:12,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:26:12,926 INFO L85 PathProgramCache]: Analyzing trace with hash -260813800, now seen corresponding path program 1 times [2024-10-24 15:26:12,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:26:12,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117127900] [2024-10-24 15:26:12,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:26:12,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:26:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:26:13,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:26:13,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:26:13,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117127900] [2024-10-24 15:26:13,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117127900] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:26:13,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:26:13,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:26:13,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133062281] [2024-10-24 15:26:13,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:26:13,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 15:26:13,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:26:13,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 15:26:13,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:26:13,322 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 101 [2024-10-24 15:26:13,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 96 transitions, 242 flow. Second operand has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:26:13,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:26:13,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 101 [2024-10-24 15:26:13,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:26:13,405 INFO L124 PetriNetUnfolderBase]: 12/177 cut-off events. [2024-10-24 15:26:13,405 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-24 15:26:13,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 177 events. 12/177 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 331 event pairs, 8 based on Foata normal form. 8/177 useless extension candidates. Maximal degree in co-relation 219. Up to 36 conditions per place. [2024-10-24 15:26:13,408 INFO L140 encePairwiseOnDemand]: 95/101 looper letters, 10 selfloop transitions, 5 changer transitions 12/90 dead transitions. [2024-10-24 15:26:13,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 90 transitions, 242 flow [2024-10-24 15:26:13,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 15:26:13,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 15:26:13,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 429 transitions. [2024-10-24 15:26:13,411 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8495049504950495 [2024-10-24 15:26:13,411 INFO L175 Difference]: Start difference. First operand has 98 places, 96 transitions, 242 flow. Second operand 5 states and 429 transitions. [2024-10-24 15:26:13,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 90 transitions, 242 flow [2024-10-24 15:26:13,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 90 transitions, 228 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-10-24 15:26:13,416 INFO L231 Difference]: Finished difference. Result has 96 places, 76 transitions, 176 flow [2024-10-24 15:26:13,417 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=176, PETRI_PLACES=96, PETRI_TRANSITIONS=76} [2024-10-24 15:26:13,417 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, -1 predicate places. [2024-10-24 15:26:13,418 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 76 transitions, 176 flow [2024-10-24 15:26:13,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:26:13,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:26:13,419 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:26:13,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:26:13,419 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-24 15:26:13,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:26:13,420 INFO L85 PathProgramCache]: Analyzing trace with hash -582478667, now seen corresponding path program 1 times [2024-10-24 15:26:13,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:26:13,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701700598] [2024-10-24 15:26:13,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:26:13,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:26:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:26:13,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:26:13,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:26:13,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701700598] [2024-10-24 15:26:13,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701700598] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:26:13,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:26:13,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:26:13,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935148170] [2024-10-24 15:26:13,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:26:13,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:26:13,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:26:13,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:26:13,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:26:13,505 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 101 [2024-10-24 15:26:13,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 76 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:26:13,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:26:13,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 101 [2024-10-24 15:26:13,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:26:13,547 INFO L124 PetriNetUnfolderBase]: 18/161 cut-off events. [2024-10-24 15:26:13,548 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-10-24 15:26:13,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 161 events. 18/161 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 360 event pairs, 16 based on Foata normal form. 4/164 useless extension candidates. Maximal degree in co-relation 217. Up to 57 conditions per place. [2024-10-24 15:26:13,548 INFO L140 encePairwiseOnDemand]: 99/101 looper letters, 0 selfloop transitions, 0 changer transitions 77/77 dead transitions. [2024-10-24 15:26:13,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 77 transitions, 218 flow [2024-10-24 15:26:13,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:26:13,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:26:13,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions. [2024-10-24 15:26:13,551 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8085808580858086 [2024-10-24 15:26:13,551 INFO L175 Difference]: Start difference. First operand has 96 places, 76 transitions, 176 flow. Second operand 3 states and 245 transitions. [2024-10-24 15:26:13,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 77 transitions, 218 flow [2024-10-24 15:26:13,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 77 transitions, 212 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 15:26:13,553 INFO L231 Difference]: Finished difference. Result has 82 places, 0 transitions, 0 flow [2024-10-24 15:26:13,553 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=82, PETRI_TRANSITIONS=0} [2024-10-24 15:26:13,554 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, -15 predicate places. [2024-10-24 15:26:13,554 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 0 transitions, 0 flow [2024-10-24 15:26:13,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:26:13,560 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2024-10-24 15:26:13,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2024-10-24 15:26:13,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-10-24 15:26:13,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-10-24 15:26:13,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-10-24 15:26:13,563 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-10-24 15:26:13,563 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2024-10-24 15:26:13,563 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-10-24 15:26:13,563 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-10-24 15:26:13,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-10-24 15:26:13,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:26:13,564 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-24 15:26:13,570 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 15:26:13,571 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 15:26:13,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:26:13 BasicIcfg [2024-10-24 15:26:13,579 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 15:26:13,580 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 15:26:13,580 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 15:26:13,580 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 15:26:13,581 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:26:11" (3/4) ... [2024-10-24 15:26:13,582 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 15:26:13,586 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-24 15:26:13,589 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-24 15:26:13,590 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 15:26:13,590 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-24 15:26:13,591 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 15:26:13,695 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 15:26:13,696 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 15:26:13,696 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 15:26:13,697 INFO L158 Benchmark]: Toolchain (without parser) took 3884.44ms. Allocated memory is still 182.5MB. Free memory was 123.7MB in the beginning and 150.3MB in the end (delta: -26.6MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. [2024-10-24 15:26:13,697 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:26:13,697 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1006.95ms. Allocated memory is still 182.5MB. Free memory was 123.7MB in the beginning and 145.5MB in the end (delta: -21.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-24 15:26:13,698 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.98ms. Allocated memory is still 182.5MB. Free memory was 145.5MB in the beginning and 143.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:26:13,698 INFO L158 Benchmark]: Boogie Preprocessor took 53.96ms. Allocated memory is still 182.5MB. Free memory was 143.3MB in the beginning and 141.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:26:13,698 INFO L158 Benchmark]: RCFGBuilder took 638.88ms. Allocated memory is still 182.5MB. Free memory was 141.3MB in the beginning and 124.4MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-24 15:26:13,698 INFO L158 Benchmark]: TraceAbstraction took 1958.56ms. Allocated memory is still 182.5MB. Free memory was 123.4MB in the beginning and 58.1MB in the end (delta: 65.3MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. [2024-10-24 15:26:13,698 INFO L158 Benchmark]: Witness Printer took 116.26ms. Allocated memory is still 182.5MB. Free memory was 58.1MB in the beginning and 150.3MB in the end (delta: -92.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:26:13,701 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 96.5MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1006.95ms. Allocated memory is still 182.5MB. Free memory was 123.7MB in the beginning and 145.5MB in the end (delta: -21.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.98ms. Allocated memory is still 182.5MB. Free memory was 145.5MB in the beginning and 143.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.96ms. Allocated memory is still 182.5MB. Free memory was 143.3MB in the beginning and 141.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 638.88ms. Allocated memory is still 182.5MB. Free memory was 141.3MB in the beginning and 124.4MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1958.56ms. Allocated memory is still 182.5MB. Free memory was 123.4MB in the beginning and 58.1MB in the end (delta: 65.3MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. * Witness Printer took 116.26ms. Allocated memory is still 182.5MB. Free memory was 58.1MB in the beginning and 150.3MB in the end (delta: -92.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 139 locations, 10 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: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 159 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 257 IncrementalHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 20 mSDtfsCounter, 257 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=242occurred in iteration=2, InterpolantAutomatonStates: 14, 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, 0.5s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 175 ConstructedInterpolants, 0 QuantifiedInterpolants, 288 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 15:26:13,727 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 Result: TRUE