./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-wmm/mix020.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix020.oepc.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 035ec41aa2053cde8ee24830f9eb7cf444ea0c142ead33ef0c1fe95c3a7de39e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:35:25,343 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:35:25,413 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:35:25,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:35:25,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:35:25,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:35:25,447 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:35:25,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:35:25,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:35:25,451 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:35:25,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:35:25,452 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:35:25,452 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:35:25,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:35:25,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:35:25,453 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:35:25,453 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:35:25,454 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:35:25,454 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:35:25,454 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:35:25,455 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:35:25,459 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:35:25,460 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:35:25,460 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:35:25,460 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:35:25,460 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:35:25,461 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:35:25,461 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:35:25,461 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:35:25,461 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:35:25,462 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:35:25,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:35:25,462 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:35:25,462 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:35:25,463 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:35:25,463 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:35:25,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:35:25,464 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:35:25,464 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:35:25,464 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:35:25,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:35:25,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 035ec41aa2053cde8ee24830f9eb7cf444ea0c142ead33ef0c1fe95c3a7de39e [2024-11-19 05:35:25,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:35:25,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:35:25,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:35:25,838 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:35:25,838 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:35:25,839 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix020.oepc.i [2024-11-19 05:35:27,341 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:35:27,614 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:35:27,615 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix020.oepc.i [2024-11-19 05:35:27,641 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73f01958a/c0c9ff0ecd8842cca3952718e9f7bdbf/FLAGac6a13072 [2024-11-19 05:35:27,912 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73f01958a/c0c9ff0ecd8842cca3952718e9f7bdbf [2024-11-19 05:35:27,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:35:27,916 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:35:27,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:35:27,918 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:35:27,925 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:35:27,926 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:35:27" (1/1) ... [2024-11-19 05:35:27,927 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f46a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:27, skipping insertion in model container [2024-11-19 05:35:27,927 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:35:27" (1/1) ... [2024-11-19 05:35:27,983 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:35:28,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:35:28,501 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:35:28,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:35:28,638 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:35:28,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:28 WrapperNode [2024-11-19 05:35:28,639 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:35:28,640 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:35:28,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:35:28,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:35:28,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:28" (1/1) ... [2024-11-19 05:35:28,674 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:28" (1/1) ... [2024-11-19 05:35:28,737 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 506 [2024-11-19 05:35:28,738 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:35:28,738 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:35:28,739 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:35:28,739 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:35:28,750 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:28" (1/1) ... [2024-11-19 05:35:28,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:28" (1/1) ... [2024-11-19 05:35:28,760 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:28" (1/1) ... [2024-11-19 05:35:28,764 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:28" (1/1) ... [2024-11-19 05:35:28,800 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:28" (1/1) ... [2024-11-19 05:35:28,815 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:28" (1/1) ... [2024-11-19 05:35:28,824 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:28" (1/1) ... [2024-11-19 05:35:28,833 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:28" (1/1) ... [2024-11-19 05:35:28,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:35:28,850 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:35:28,850 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:35:28,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:35:28,851 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:28" (1/1) ... [2024-11-19 05:35:28,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:35:28,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:35:28,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 05:35:28,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 05:35:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 05:35:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:35:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-19 05:35:28,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-19 05:35:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-19 05:35:28,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-19 05:35:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-19 05:35:28,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-19 05:35:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-19 05:35:28,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-19 05:35:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:35:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 05:35:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:35:28,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:35:28,950 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:35:29,136 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:35:29,139 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:35:30,685 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:35:30,685 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:35:36,049 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:35:36,051 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 05:35:36,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:35:36 BoogieIcfgContainer [2024-11-19 05:35:36,053 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:35:36,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:35:36,057 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:35:36,060 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:35:36,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:35:27" (1/3) ... [2024-11-19 05:35:36,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5108ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:35:36, skipping insertion in model container [2024-11-19 05:35:36,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:28" (2/3) ... [2024-11-19 05:35:36,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5108ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:35:36, skipping insertion in model container [2024-11-19 05:35:36,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:35:36" (3/3) ... [2024-11-19 05:35:36,066 INFO L112 eAbstractionObserver]: Analyzing ICFG mix020.oepc.i [2024-11-19 05:35:36,086 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:35:36,086 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 283 error locations. [2024-11-19 05:35:36,087 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:35:36,548 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 05:35:36,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 425 places, 415 transitions, 846 flow [2024-11-19 05:35:36,883 INFO L124 PetriNetUnfolderBase]: 3/411 cut-off events. [2024-11-19 05:35:36,884 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:35:36,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 411 events. 3/411 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2255 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 373. Up to 2 conditions per place. [2024-11-19 05:35:36,910 INFO L82 GeneralOperation]: Start removeDead. Operand has 425 places, 415 transitions, 846 flow [2024-11-19 05:35:36,947 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 421 places, 411 transitions, 834 flow [2024-11-19 05:35:36,956 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:35:36,963 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;@69bdf743, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:35:36,963 INFO L334 AbstractCegarLoop]: Starting to check reachability of 532 error locations. [2024-11-19 05:35:36,973 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:35:36,973 INFO L124 PetriNetUnfolderBase]: 0/47 cut-off events. [2024-11-19 05:35:36,973 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:35:36,974 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:35:36,974 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] [2024-11-19 05:35:36,975 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 528 more)] === [2024-11-19 05:35:36,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:35:36,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1469767952, now seen corresponding path program 1 times [2024-11-19 05:35:36,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:35:36,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556418240] [2024-11-19 05:35:36,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:35:36,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:35:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:35:37,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:35:37,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:35:37,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556418240] [2024-11-19 05:35:37,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556418240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:35:37,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:35:37,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 05:35:37,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966371848] [2024-11-19 05:35:37,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:35:37,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 05:35:37,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:35:37,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 05:35:37,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 05:35:37,345 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 415 [2024-11-19 05:35:37,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 411 transitions, 834 flow. Second operand has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:35:37,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:35:37,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 415 [2024-11-19 05:35:37,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:35:48,912 INFO L124 PetriNetUnfolderBase]: 9295/25615 cut-off events. [2024-11-19 05:35:48,912 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2024-11-19 05:35:49,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38383 conditions, 25615 events. 9295/25615 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 1045. Compared 313121 event pairs, 9295 based on Foata normal form. 2193/26115 useless extension candidates. Maximal degree in co-relation 38330. Up to 12451 conditions per place. [2024-11-19 05:35:49,189 INFO L140 encePairwiseOnDemand]: 131/415 looper letters, 24 selfloop transitions, 0 changer transitions 0/125 dead transitions. [2024-11-19 05:35:49,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 125 transitions, 310 flow [2024-11-19 05:35:49,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 05:35:49,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-19 05:35:49,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 520 transitions. [2024-11-19 05:35:49,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6265060240963856 [2024-11-19 05:35:49,215 INFO L175 Difference]: Start difference. First operand has 421 places, 411 transitions, 834 flow. Second operand 2 states and 520 transitions. [2024-11-19 05:35:49,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 125 transitions, 310 flow [2024-11-19 05:35:49,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 125 transitions, 306 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 05:35:49,223 INFO L231 Difference]: Finished difference. Result has 135 places, 125 transitions, 258 flow [2024-11-19 05:35:49,226 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=415, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=258, PETRI_PLACES=135, PETRI_TRANSITIONS=125} [2024-11-19 05:35:49,230 INFO L277 CegarLoopForPetriNet]: 421 programPoint places, -286 predicate places. [2024-11-19 05:35:49,231 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 125 transitions, 258 flow [2024-11-19 05:35:49,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:35:49,232 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:35:49,232 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:35:49,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:35:49,233 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 528 more)] === [2024-11-19 05:35:49,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:35:49,234 INFO L85 PathProgramCache]: Analyzing trace with hash 845859048, now seen corresponding path program 1 times [2024-11-19 05:35:49,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:35:49,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881247771] [2024-11-19 05:35:49,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:35:49,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:35:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:35:49,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:35:49,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:35:49,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881247771] [2024-11-19 05:35:49,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881247771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:35:49,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:35:49,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:35:49,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128046021] [2024-11-19 05:35:49,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:35:49,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:35:49,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:35:49,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:35:49,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:35:49,446 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 415 [2024-11-19 05:35:49,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 125 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:35:49,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:35:49,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 415 [2024-11-19 05:35:49,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:36:00,903 INFO L124 PetriNetUnfolderBase]: 14145/36893 cut-off events. [2024-11-19 05:36:00,903 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:36:01,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56008 conditions, 36893 events. 14145/36893 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1016. Compared 440402 event pairs, 4445 based on Foata normal form. 0/34591 useless extension candidates. Maximal degree in co-relation 56005. Up to 12700 conditions per place. [2024-11-19 05:36:01,193 INFO L140 encePairwiseOnDemand]: 413/415 looper letters, 42 selfloop transitions, 1 changer transitions 0/141 dead transitions. [2024-11-19 05:36:01,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 141 transitions, 376 flow [2024-11-19 05:36:01,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:36:01,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:36:01,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2024-11-19 05:36:01,199 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.28353413654618476 [2024-11-19 05:36:01,199 INFO L175 Difference]: Start difference. First operand has 135 places, 125 transitions, 258 flow. Second operand 3 states and 353 transitions. [2024-11-19 05:36:01,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 141 transitions, 376 flow [2024-11-19 05:36:01,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 141 transitions, 376 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:36:01,204 INFO L231 Difference]: Finished difference. Result has 136 places, 124 transitions, 258 flow [2024-11-19 05:36:01,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=415, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=136, PETRI_TRANSITIONS=124} [2024-11-19 05:36:01,205 INFO L277 CegarLoopForPetriNet]: 421 programPoint places, -285 predicate places. [2024-11-19 05:36:01,206 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 124 transitions, 258 flow [2024-11-19 05:36:01,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:36:01,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:36:01,207 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:36:01,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:36:01,207 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 528 more)] === [2024-11-19 05:36:01,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:36:01,209 INFO L85 PathProgramCache]: Analyzing trace with hash 2032955240, now seen corresponding path program 1 times [2024-11-19 05:36:01,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:36:01,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556401570] [2024-11-19 05:36:01,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:36:01,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:36:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:36:01,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:36:01,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:36:01,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556401570] [2024-11-19 05:36:01,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556401570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:36:01,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:36:01,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:36:01,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653461210] [2024-11-19 05:36:01,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:36:01,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:36:01,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:36:01,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:36:01,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:36:01,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 415 [2024-11-19 05:36:01,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 124 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:36:01,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:36:01,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 415 [2024-11-19 05:36:01,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand