./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.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 ee3d1a41e169e13d6fb9bc974b1d8f7c8de5421cb2dfbc7e3d9a400662188398 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:28:23,587 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:28:23,665 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:28:23,670 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:28:23,671 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:28:23,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:28:23,704 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:28:23,705 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:28:23,705 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:28:23,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:28:23,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:28:23,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:28:23,708 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:28:23,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:28:23,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:28:23,711 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:28:23,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:28:23,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:28:23,715 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:28:23,715 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:28:23,715 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:28:23,716 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:28:23,716 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:28:23,716 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:28:23,716 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:28:23,717 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:28:23,717 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:28:23,717 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:28:23,717 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:28:23,718 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:28:23,718 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:28:23,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:28:23,718 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:28:23,718 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:28:23,719 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:28:23,719 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:28:23,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:28:23,719 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:28:23,719 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:28:23,720 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:28:23,720 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:28:23,720 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee3d1a41e169e13d6fb9bc974b1d8f7c8de5421cb2dfbc7e3d9a400662188398 [2024-10-13 09:28:24,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:28:24,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:28:24,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:28:24,038 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:28:24,038 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:28:24,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.i [2024-10-13 09:28:25,470 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:28:25,751 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:28:25,752 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.i [2024-10-13 09:28:25,765 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/852fbb096/9cd3f8a782894c949c02447a0867e003/FLAG40b4a2f8d [2024-10-13 09:28:25,779 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/852fbb096/9cd3f8a782894c949c02447a0867e003 [2024-10-13 09:28:25,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:28:25,782 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:28:25,783 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:28:25,784 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:28:25,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:28:25,795 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:28:25" (1/1) ... [2024-10-13 09:28:25,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@197e8a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:28:25, skipping insertion in model container [2024-10-13 09:28:25,796 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:28:25" (1/1) ... [2024-10-13 09:28:25,834 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:28:26,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:28:26,220 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:28:26,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:28:26,326 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:28:26,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:28:26 WrapperNode [2024-10-13 09:28:26,327 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:28:26,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:28:26,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:28:26,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:28:26,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:28:26" (1/1) ... [2024-10-13 09:28:26,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:28:26" (1/1) ... [2024-10-13 09:28:26,376 INFO L138 Inliner]: procedures = 169, calls = 38, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 150 [2024-10-13 09:28:26,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:28:26,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:28:26,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:28:26,377 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:28:26,388 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:28:26" (1/1) ... [2024-10-13 09:28:26,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:28:26" (1/1) ... [2024-10-13 09:28:26,394 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:28:26" (1/1) ... [2024-10-13 09:28:26,396 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:28:26" (1/1) ... [2024-10-13 09:28:26,400 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:28:26" (1/1) ... [2024-10-13 09:28:26,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:28:26" (1/1) ... [2024-10-13 09:28:26,405 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:28:26" (1/1) ... [2024-10-13 09:28:26,406 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:28:26" (1/1) ... [2024-10-13 09:28:26,412 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:28:26,413 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:28:26,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:28:26,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:28:26,417 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:28:26" (1/1) ... [2024-10-13 09:28:26,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:28:26,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:28:26,464 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) [2024-10-13 09:28:26,467 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 [2024-10-13 09:28:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-10-13 09:28:26,513 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-10-13 09:28:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-13 09:28:26,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-13 09:28:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 09:28:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:28:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:28:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 09:28:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:28:26,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:28:26,517 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:28:26,686 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:28:26,688 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:28:26,877 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:28:26,877 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:28:26,944 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:28:26,944 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 09:28:26,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:28:26 BoogieIcfgContainer [2024-10-13 09:28:26,944 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:28:26,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:28:26,947 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:28:26,950 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:28:26,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:28:25" (1/3) ... [2024-10-13 09:28:26,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b561a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:28:26, skipping insertion in model container [2024-10-13 09:28:26,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:28:26" (2/3) ... [2024-10-13 09:28:26,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b561a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:28:26, skipping insertion in model container [2024-10-13 09:28:26,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:28:26" (3/3) ... [2024-10-13 09:28:26,955 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson.i [2024-10-13 09:28:26,972 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:28:26,973 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-13 09:28:26,974 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:28:27,050 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-13 09:28:27,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 106 transitions, 226 flow [2024-10-13 09:28:27,127 INFO L124 PetriNetUnfolderBase]: 8/104 cut-off events. [2024-10-13 09:28:27,127 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 09:28:27,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 104 events. 8/104 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 180 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2024-10-13 09:28:27,135 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 106 transitions, 226 flow [2024-10-13 09:28:27,140 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 99 transitions, 207 flow [2024-10-13 09:28:27,153 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:28:27,162 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;@66d9cb9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:28:27,164 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-10-13 09:28:27,177 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:28:27,177 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2024-10-13 09:28:27,177 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:28:27,178 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:28:27,178 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] [2024-10-13 09:28:27,179 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-13 09:28:27,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:28:27,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1594938085, now seen corresponding path program 1 times [2024-10-13 09:28:27,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:28:27,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914078701] [2024-10-13 09:28:27,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:28:27,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:28:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:28:27,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:28:27,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:28:27,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914078701] [2024-10-13 09:28:27,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914078701] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:28:27,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:28:27,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:28:27,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110593278] [2024-10-13 09:28:27,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:28:27,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:28:27,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:28:27,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:28:27,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:28:27,445 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 106 [2024-10-13 09:28:27,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 99 transitions, 207 flow. Second operand has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 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) [2024-10-13 09:28:27,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:28:27,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 106 [2024-10-13 09:28:27,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:28:27,587 INFO L124 PetriNetUnfolderBase]: 64/340 cut-off events. [2024-10-13 09:28:27,590 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-10-13 09:28:27,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 340 events. 64/340 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1614 event pairs, 48 based on Foata normal form. 40/327 useless extension candidates. Maximal degree in co-relation 417. Up to 128 conditions per place. [2024-10-13 09:28:27,597 INFO L140 encePairwiseOnDemand]: 86/106 looper letters, 17 selfloop transitions, 0 changer transitions 0/77 dead transitions. [2024-10-13 09:28:27,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 77 transitions, 197 flow [2024-10-13 09:28:27,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:28:27,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:28:27,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 173 transitions. [2024-10-13 09:28:27,609 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8160377358490566 [2024-10-13 09:28:27,610 INFO L175 Difference]: Start difference. First operand has 98 places, 99 transitions, 207 flow. Second operand 2 states and 173 transitions. [2024-10-13 09:28:27,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 77 transitions, 197 flow [2024-10-13 09:28:27,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 77 transitions, 192 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 09:28:27,615 INFO L231 Difference]: Finished difference. Result has 80 places, 77 transitions, 158 flow [2024-10-13 09:28:27,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=158, PETRI_PLACES=80, PETRI_TRANSITIONS=77} [2024-10-13 09:28:27,626 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, -18 predicate places. [2024-10-13 09:28:27,628 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 77 transitions, 158 flow [2024-10-13 09:28:27,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 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) [2024-10-13 09:28:27,629 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:28:27,629 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] [2024-10-13 09:28:27,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:28:27,630 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-13 09:28:27,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:28:27,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1207235428, now seen corresponding path program 1 times [2024-10-13 09:28:27,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:28:27,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212119826] [2024-10-13 09:28:27,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:28:27,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:28:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:28:27,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:28:27,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:28:27,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212119826] [2024-10-13 09:28:27,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212119826] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:28:27,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:28:27,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:28:27,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370242696] [2024-10-13 09:28:27,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:28:27,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:28:27,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:28:27,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:28:27,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:28:27,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2024-10-13 09:28:27,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 77 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2024-10-13 09:28:27,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:28:27,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2024-10-13 09:28:27,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:28:27,887 INFO L124 PetriNetUnfolderBase]: 136/531 cut-off events. [2024-10-13 09:28:27,887 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-13 09:28:27,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 833 conditions, 531 events. 136/531 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3024 event pairs, 90 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 830. Up to 236 conditions per place. [2024-10-13 09:28:27,894 INFO L140 encePairwiseOnDemand]: 100/106 looper letters, 32 selfloop transitions, 5 changer transitions 0/89 dead transitions. [2024-10-13 09:28:27,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 89 transitions, 258 flow [2024-10-13 09:28:27,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:28:27,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:28:27,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2024-10-13 09:28:27,897 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6855345911949685 [2024-10-13 09:28:27,897 INFO L175 Difference]: Start difference. First operand has 80 places, 77 transitions, 158 flow. Second operand 3 states and 218 transitions. [2024-10-13 09:28:27,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 89 transitions, 258 flow [2024-10-13 09:28:27,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 89 transitions, 258 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:28:27,902 INFO L231 Difference]: Finished difference. Result has 84 places, 81 transitions, 196 flow [2024-10-13 09:28:27,902 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=84, PETRI_TRANSITIONS=81} [2024-10-13 09:28:27,903 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, -14 predicate places. [2024-10-13 09:28:27,903 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 81 transitions, 196 flow [2024-10-13 09:28:27,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2024-10-13 09:28:27,903 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:28:27,904 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] [2024-10-13 09:28:27,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:28:27,904 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-13 09:28:27,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:28:27,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1305077111, now seen corresponding path program 1 times [2024-10-13 09:28:27,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:28:27,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997228722] [2024-10-13 09:28:27,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:28:27,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:28:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:28:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:28:27,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:28:27,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997228722] [2024-10-13 09:28:27,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997228722] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:28:27,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:28:27,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:28:27,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458723206] [2024-10-13 09:28:27,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:28:27,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:28:27,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:28:27,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:28:27,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:28:28,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2024-10-13 09:28:28,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 81 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2024-10-13 09:28:28,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:28:28,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2024-10-13 09:28:28,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:28:28,189 INFO L124 PetriNetUnfolderBase]: 134/552 cut-off events. [2024-10-13 09:28:28,190 INFO L125 PetriNetUnfolderBase]: For 80/82 co-relation queries the response was YES. [2024-10-13 09:28:28,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 945 conditions, 552 events. 134/552 cut-off events. For 80/82 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3132 event pairs, 51 based on Foata normal form. 1/490 useless extension candidates. Maximal degree in co-relation 940. Up to 149 conditions per place. [2024-10-13 09:28:28,194 INFO L140 encePairwiseOnDemand]: 98/106 looper letters, 39 selfloop transitions, 6 changer transitions 4/103 dead transitions. [2024-10-13 09:28:28,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 103 transitions, 349 flow [2024-10-13 09:28:28,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:28:28,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:28:28,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 229 transitions. [2024-10-13 09:28:28,200 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.720125786163522 [2024-10-13 09:28:28,200 INFO L175 Difference]: Start difference. First operand has 84 places, 81 transitions, 196 flow. Second operand 3 states and 229 transitions. [2024-10-13 09:28:28,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 103 transitions, 349 flow [2024-10-13 09:28:28,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 103 transitions, 337 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:28:28,206 INFO L231 Difference]: Finished difference. Result has 86 places, 84 transitions, 232 flow [2024-10-13 09:28:28,206 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=86, PETRI_TRANSITIONS=84} [2024-10-13 09:28:28,207 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, -12 predicate places. [2024-10-13 09:28:28,207 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 84 transitions, 232 flow [2024-10-13 09:28:28,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2024-10-13 09:28:28,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:28:28,208 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:28:28,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:28:28,208 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-13 09:28:28,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:28:28,209 INFO L85 PathProgramCache]: Analyzing trace with hash 775786928, now seen corresponding path program 1 times [2024-10-13 09:28:28,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:28:28,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514107476] [2024-10-13 09:28:28,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:28:28,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:28:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:28:28,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:28:28,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:28:28,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514107476] [2024-10-13 09:28:28,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514107476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:28:28,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:28:28,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:28:28,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285361224] [2024-10-13 09:28:28,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:28:28,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:28:28,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:28:28,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:28:28,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:28:28,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2024-10-13 09:28:28,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 84 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2024-10-13 09:28:28,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:28:28,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2024-10-13 09:28:28,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:28:28,389 INFO L124 PetriNetUnfolderBase]: 155/568 cut-off events. [2024-10-13 09:28:28,390 INFO L125 PetriNetUnfolderBase]: For 190/190 co-relation queries the response was YES. [2024-10-13 09:28:28,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1117 conditions, 568 events. 155/568 cut-off events. For 190/190 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3285 event pairs, 91 based on Foata normal form. 0/506 useless extension candidates. Maximal degree in co-relation 1111. Up to 270 conditions per place. [2024-10-13 09:28:28,393 INFO L140 encePairwiseOnDemand]: 100/106 looper letters, 32 selfloop transitions, 7 changer transitions 3/96 dead transitions. [2024-10-13 09:28:28,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 96 transitions, 347 flow [2024-10-13 09:28:28,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:28:28,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:28:28,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2024-10-13 09:28:28,396 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6855345911949685 [2024-10-13 09:28:28,396 INFO L175 Difference]: Start difference. First operand has 86 places, 84 transitions, 232 flow. Second operand 3 states and 218 transitions. [2024-10-13 09:28:28,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 96 transitions, 347 flow [2024-10-13 09:28:28,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 96 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:28:28,403 INFO L231 Difference]: Finished difference. Result has 88 places, 87 transitions, 268 flow [2024-10-13 09:28:28,404 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=88, PETRI_TRANSITIONS=87} [2024-10-13 09:28:28,405 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, -10 predicate places. [2024-10-13 09:28:28,406 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 87 transitions, 268 flow [2024-10-13 09:28:28,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2024-10-13 09:28:28,406 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:28:28,406 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] [2024-10-13 09:28:28,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:28:28,406 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-13 09:28:28,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:28:28,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1580683621, now seen corresponding path program 1 times [2024-10-13 09:28:28,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:28:28,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777867196] [2024-10-13 09:28:28,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:28:28,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:28:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:28:28,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:28:28,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:28:28,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777867196] [2024-10-13 09:28:28,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777867196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:28:28,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:28:28,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 09:28:28,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074304187] [2024-10-13 09:28:28,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:28:28,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:28:28,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:28:28,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:28:28,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:28:28,624 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 106 [2024-10-13 09:28:28,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 87 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 66.16666666666667) internal successors, (397), 6 states have internal predecessors, (397), 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) [2024-10-13 09:28:28,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:28:28,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 106 [2024-10-13 09:28:28,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:28:28,891 INFO L124 PetriNetUnfolderBase]: 144/631 cut-off events. [2024-10-13 09:28:28,892 INFO L125 PetriNetUnfolderBase]: For 161/177 co-relation queries the response was YES. [2024-10-13 09:28:28,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1191 conditions, 631 events. 144/631 cut-off events. For 161/177 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3827 event pairs, 25 based on Foata normal form. 0/568 useless extension candidates. Maximal degree in co-relation 1184. Up to 105 conditions per place. [2024-10-13 09:28:28,895 INFO L140 encePairwiseOnDemand]: 96/106 looper letters, 33 selfloop transitions, 13 changer transitions 24/136 dead transitions. [2024-10-13 09:28:28,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 136 transitions, 509 flow [2024-10-13 09:28:28,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 09:28:28,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 09:28:28,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 714 transitions. [2024-10-13 09:28:28,899 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6735849056603773 [2024-10-13 09:28:28,899 INFO L175 Difference]: Start difference. First operand has 88 places, 87 transitions, 268 flow. Second operand 10 states and 714 transitions. [2024-10-13 09:28:28,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 136 transitions, 509 flow [2024-10-13 09:28:28,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 136 transitions, 495 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:28:28,908 INFO L231 Difference]: Finished difference. Result has 104 places, 99 transitions, 362 flow [2024-10-13 09:28:28,909 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=362, PETRI_PLACES=104, PETRI_TRANSITIONS=99} [2024-10-13 09:28:28,910 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 6 predicate places. [2024-10-13 09:28:28,910 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 99 transitions, 362 flow [2024-10-13 09:28:28,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.16666666666667) internal successors, (397), 6 states have internal predecessors, (397), 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) [2024-10-13 09:28:28,911 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:28:28,911 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] [2024-10-13 09:28:28,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 09:28:28,913 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-13 09:28:28,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:28:28,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1051832887, now seen corresponding path program 2 times [2024-10-13 09:28:28,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:28:28,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498457273] [2024-10-13 09:28:28,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:28:28,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:28:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:28:29,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:28:29,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:28:29,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498457273] [2024-10-13 09:28:29,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498457273] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:28:29,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:28:29,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 09:28:29,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218476223] [2024-10-13 09:28:29,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:28:29,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:28:29,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:28:29,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:28:29,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:28:29,070 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 106 [2024-10-13 09:28:29,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 362 flow. Second operand has 6 states, 6 states have (on average 66.16666666666667) internal successors, (397), 6 states have internal predecessors, (397), 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) [2024-10-13 09:28:29,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:28:29,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 106 [2024-10-13 09:28:29,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:28:29,284 INFO L124 PetriNetUnfolderBase]: 131/396 cut-off events. [2024-10-13 09:28:29,284 INFO L125 PetriNetUnfolderBase]: For 267/275 co-relation queries the response was YES. [2024-10-13 09:28:29,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1012 conditions, 396 events. 131/396 cut-off events. For 267/275 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1671 event pairs, 10 based on Foata normal form. 0/376 useless extension candidates. Maximal degree in co-relation 997. Up to 98 conditions per place. [2024-10-13 09:28:29,286 INFO L140 encePairwiseOnDemand]: 96/106 looper letters, 0 selfloop transitions, 0 changer transitions 138/138 dead transitions. [2024-10-13 09:28:29,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 138 transitions, 671 flow [2024-10-13 09:28:29,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 09:28:29,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 09:28:29,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 712 transitions. [2024-10-13 09:28:29,288 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6716981132075471 [2024-10-13 09:28:29,288 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 362 flow. Second operand 10 states and 712 transitions. [2024-10-13 09:28:29,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 138 transitions, 671 flow [2024-10-13 09:28:29,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 138 transitions, 609 flow, removed 25 selfloop flow, removed 6 redundant places. [2024-10-13 09:28:29,294 INFO L231 Difference]: Finished difference. Result has 101 places, 0 transitions, 0 flow [2024-10-13 09:28:29,295 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=101, PETRI_TRANSITIONS=0} [2024-10-13 09:28:29,296 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 3 predicate places. [2024-10-13 09:28:29,296 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 0 transitions, 0 flow [2024-10-13 09:28:29,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.16666666666667) internal successors, (397), 6 states have internal predecessors, (397), 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) [2024-10-13 09:28:29,299 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2024-10-13 09:28:29,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-10-13 09:28:29,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-10-13 09:28:29,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-10-13 09:28:29,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-10-13 09:28:29,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-10-13 09:28:29,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2024-10-13 09:28:29,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-10-13 09:28:29,304 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-10-13 09:28:29,304 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-10-13 09:28:29,304 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-10-13 09:28:29,304 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-10-13 09:28:29,304 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-10-13 09:28:29,304 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-10-13 09:28:29,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-10-13 09:28:29,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-10-13 09:28:29,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-10-13 09:28:29,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2024-10-13 09:28:29,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 38 remaining) [2024-10-13 09:28:29,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 38 remaining) [2024-10-13 09:28:29,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-10-13 09:28:29,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-10-13 09:28:29,306 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-10-13 09:28:29,306 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-10-13 09:28:29,306 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-10-13 09:28:29,308 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-10-13 09:28:29,308 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-10-13 09:28:29,308 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-10-13 09:28:29,308 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-10-13 09:28:29,308 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-10-13 09:28:29,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-10-13 09:28:29,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2024-10-13 09:28:29,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-10-13 09:28:29,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-10-13 09:28:29,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-10-13 09:28:29,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-10-13 09:28:29,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-10-13 09:28:29,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-10-13 09:28:29,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 09:28:29,310 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-10-13 09:28:29,316 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 09:28:29,317 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 09:28:29,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:28:29 BasicIcfg [2024-10-13 09:28:29,326 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 09:28:29,326 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 09:28:29,327 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 09:28:29,327 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 09:28:29,327 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:28:26" (3/4) ... [2024-10-13 09:28:29,329 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 09:28:29,331 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2024-10-13 09:28:29,332 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2024-10-13 09:28:29,335 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-13 09:28:29,335 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-13 09:28:29,335 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-13 09:28:29,335 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 09:28:29,412 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 09:28:29,412 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 09:28:29,412 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 09:28:29,415 INFO L158 Benchmark]: Toolchain (without parser) took 3630.48ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 134.6MB in the beginning and 99.8MB in the end (delta: 34.9MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. [2024-10-13 09:28:29,415 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 09:28:29,415 INFO L158 Benchmark]: CACSL2BoogieTranslator took 543.58ms. Allocated memory is still 165.7MB. Free memory was 134.6MB in the beginning and 112.8MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-13 09:28:29,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.27ms. Allocated memory is still 165.7MB. Free memory was 112.8MB in the beginning and 110.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 09:28:29,416 INFO L158 Benchmark]: Boogie Preprocessor took 35.75ms. Allocated memory is still 165.7MB. Free memory was 110.7MB in the beginning and 109.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 09:28:29,416 INFO L158 Benchmark]: RCFGBuilder took 531.38ms. Allocated memory is still 165.7MB. Free memory was 109.6MB in the beginning and 120.1MB in the end (delta: -10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 09:28:29,416 INFO L158 Benchmark]: TraceAbstraction took 2379.40ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 120.1MB in the beginning and 103.9MB in the end (delta: 16.1MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. [2024-10-13 09:28:29,416 INFO L158 Benchmark]: Witness Printer took 85.83ms. Allocated memory is still 199.2MB. Free memory was 103.9MB in the beginning and 99.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 09:28:29,417 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 543.58ms. Allocated memory is still 165.7MB. Free memory was 134.6MB in the beginning and 112.8MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.27ms. Allocated memory is still 165.7MB. Free memory was 112.8MB in the beginning and 110.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.75ms. Allocated memory is still 165.7MB. Free memory was 110.7MB in the beginning and 109.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 531.38ms. Allocated memory is still 165.7MB. Free memory was 109.6MB in the beginning and 120.1MB in the end (delta: -10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2379.40ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 120.1MB in the beginning and 103.9MB in the end (delta: 16.1MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. * Witness Printer took 85.83ms. Allocated memory is still 199.2MB. Free memory was 103.9MB in the beginning and 99.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 739]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 742]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 746]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 749]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 753]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 705]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: 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 5 procedures, 167 locations, 38 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: 2.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 206 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 149 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 617 IncrementalHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 22 mSDtfsCounter, 617 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=5, InterpolantAutomatonStates: 31, 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, 199 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 255 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-13 09:28:29,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE