./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-atomic/dekker-b-unfair.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-atomic/dekker-b-unfair.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 00eedb63fb9d62a729cbdbbc78c20dc2306cd626b581321e129d31c09fc5db8e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:29:32,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:29:32,804 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:29:32,811 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:29:32,814 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:29:32,843 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:29:32,843 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:29:32,844 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:29:32,844 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:29:32,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:29:32,845 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:29:32,858 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:29:32,858 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:29:32,859 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:29:32,859 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:29:32,859 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:29:32,860 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:29:32,860 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:29:32,860 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:29:32,860 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:29:32,861 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:29:32,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:29:32,863 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:29:32,863 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:29:32,863 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:29:32,864 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:29:32,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:29:32,864 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:29:32,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:29:32,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:29:32,864 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:29:32,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:29:32,865 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:29:32,865 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:29:32,865 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:29:32,865 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:29:32,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:29:32,866 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:29:32,866 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:29:32,866 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:29:32,869 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:29:32,869 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00eedb63fb9d62a729cbdbbc78c20dc2306cd626b581321e129d31c09fc5db8e [2024-11-22 17:29:33,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:29:33,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:29:33,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:29:33,087 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:29:33,087 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:29:33,088 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/dekker-b-unfair.i [2024-11-22 17:29:34,238 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:29:34,440 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:29:34,440 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker-b-unfair.i [2024-11-22 17:29:34,451 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e78355747/4f8a84438b1847a68aa0a66f4a4d16c7/FLAG5622aba32 [2024-11-22 17:29:34,461 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e78355747/4f8a84438b1847a68aa0a66f4a4d16c7 [2024-11-22 17:29:34,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:29:34,464 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:29:34,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:29:34,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:29:34,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:29:34,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:29:34" (1/1) ... [2024-11-22 17:29:34,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:34, skipping insertion in model container [2024-11-22 17:29:34,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:29:34" (1/1) ... [2024-11-22 17:29:34,507 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:29:34,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:29:34,804 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:29:34,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:29:34,866 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:29:34,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:34 WrapperNode [2024-11-22 17:29:34,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:29:34,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:29:34,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:29:34,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:29:34,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:34" (1/1) ... [2024-11-22 17:29:34,887 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:34" (1/1) ... [2024-11-22 17:29:34,902 INFO L138 Inliner]: procedures = 161, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 152 [2024-11-22 17:29:34,902 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:29:34,903 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:29:34,903 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:29:34,903 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:29:34,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:34" (1/1) ... [2024-11-22 17:29:34,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:34" (1/1) ... [2024-11-22 17:29:34,911 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:34" (1/1) ... [2024-11-22 17:29:34,912 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:34" (1/1) ... [2024-11-22 17:29:34,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:34" (1/1) ... [2024-11-22 17:29:34,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:34" (1/1) ... [2024-11-22 17:29:34,921 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:34" (1/1) ... [2024-11-22 17:29:34,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:34" (1/1) ... [2024-11-22 17:29:34,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:29:34,927 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:29:34,927 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:29:34,927 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:29:34,928 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:34" (1/1) ... [2024-11-22 17:29:34,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:29:34,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:29:34,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 17:29:34,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 17:29:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-22 17:29:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-22 17:29:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-22 17:29:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-22 17:29:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:29:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:29:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:29:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:29:35,008 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 17:29:35,117 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:29:35,120 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:29:35,352 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:29:35,352 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:29:35,364 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:29:35,365 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-22 17:29:35,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:29:35 BoogieIcfgContainer [2024-11-22 17:29:35,365 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:29:35,367 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:29:35,367 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:29:35,374 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:29:35,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:29:34" (1/3) ... [2024-11-22 17:29:35,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24842ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:29:35, skipping insertion in model container [2024-11-22 17:29:35,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:34" (2/3) ... [2024-11-22 17:29:35,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24842ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:29:35, skipping insertion in model container [2024-11-22 17:29:35,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:29:35" (3/3) ... [2024-11-22 17:29:35,378 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker-b-unfair.i [2024-11-22 17:29:35,391 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:29:35,392 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-22 17:29:35,392 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:29:35,463 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-22 17:29:35,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 185 transitions, 384 flow [2024-11-22 17:29:35,547 INFO L124 PetriNetUnfolderBase]: 16/183 cut-off events. [2024-11-22 17:29:35,547 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-22 17:29:35,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 183 events. 16/183 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 435 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 142. Up to 3 conditions per place. [2024-11-22 17:29:35,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 185 transitions, 384 flow [2024-11-22 17:29:35,582 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 178 transitions, 365 flow [2024-11-22 17:29:35,589 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:29:35,594 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;@5c50a1d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:29:35,595 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-22 17:29:35,614 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:29:35,615 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-22 17:29:35,615 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:29:35,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:35,616 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:29:35,616 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:29:35,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:35,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1850524738, now seen corresponding path program 1 times [2024-11-22 17:29:35,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:35,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848876009] [2024-11-22 17:29:35,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:35,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:35,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:35,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:35,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848876009] [2024-11-22 17:29:35,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848876009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:35,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:35,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:35,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11167558] [2024-11-22 17:29:35,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:35,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:35,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:35,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:35,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:35,887 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 185 [2024-11-22 17:29:35,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 178 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:35,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:35,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 185 [2024-11-22 17:29:35,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:36,044 INFO L124 PetriNetUnfolderBase]: 98/790 cut-off events. [2024-11-22 17:29:36,045 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-11-22 17:29:36,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 964 conditions, 790 events. 98/790 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4984 event pairs, 23 based on Foata normal form. 66/687 useless extension candidates. Maximal degree in co-relation 812. Up to 99 conditions per place. [2024-11-22 17:29:36,055 INFO L140 encePairwiseOnDemand]: 159/185 looper letters, 22 selfloop transitions, 11 changer transitions 1/177 dead transitions. [2024-11-22 17:29:36,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 177 transitions, 435 flow [2024-11-22 17:29:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:36,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:36,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2024-11-22 17:29:36,068 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9225225225225225 [2024-11-22 17:29:36,069 INFO L175 Difference]: Start difference. First operand has 169 places, 178 transitions, 365 flow. Second operand 3 states and 512 transitions. [2024-11-22 17:29:36,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 177 transitions, 435 flow [2024-11-22 17:29:36,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 177 transitions, 427 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 17:29:36,077 INFO L231 Difference]: Finished difference. Result has 166 places, 174 transitions, 424 flow [2024-11-22 17:29:36,079 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=424, PETRI_PLACES=166, PETRI_TRANSITIONS=174} [2024-11-22 17:29:36,083 INFO L277 CegarLoopForPetriNet]: 169 programPoint places, -3 predicate places. [2024-11-22 17:29:36,084 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 174 transitions, 424 flow [2024-11-22 17:29:36,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:36,084 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:36,084 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:29:36,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:29:36,085 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:29:36,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:36,085 INFO L85 PathProgramCache]: Analyzing trace with hash 857512282, now seen corresponding path program 1 times [2024-11-22 17:29:36,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:36,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702691086] [2024-11-22 17:29:36,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:36,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:36,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:36,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:36,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702691086] [2024-11-22 17:29:36,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702691086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:36,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:36,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 17:29:36,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288430441] [2024-11-22 17:29:36,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:36,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 17:29:36,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:36,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 17:29:36,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 17:29:36,245 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 185 [2024-11-22 17:29:36,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 174 transitions, 424 flow. Second operand has 4 states, 4 states have (on average 157.5) internal successors, (630), 4 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:36,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:36,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 185 [2024-11-22 17:29:36,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:36,355 INFO L124 PetriNetUnfolderBase]: 73/668 cut-off events. [2024-11-22 17:29:36,355 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-22 17:29:36,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 873 conditions, 668 events. 73/668 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4137 event pairs, 15 based on Foata normal form. 6/550 useless extension candidates. Maximal degree in co-relation 795. Up to 62 conditions per place. [2024-11-22 17:29:36,361 INFO L140 encePairwiseOnDemand]: 174/185 looper letters, 14 selfloop transitions, 7 changer transitions 0/177 dead transitions. [2024-11-22 17:29:36,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 177 transitions, 474 flow [2024-11-22 17:29:36,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 17:29:36,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 17:29:36,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 649 transitions. [2024-11-22 17:29:36,364 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8770270270270271 [2024-11-22 17:29:36,364 INFO L175 Difference]: Start difference. First operand has 166 places, 174 transitions, 424 flow. Second operand 4 states and 649 transitions. [2024-11-22 17:29:36,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 177 transitions, 474 flow [2024-11-22 17:29:36,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 177 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:29:36,375 INFO L231 Difference]: Finished difference. Result has 168 places, 176 transitions, 444 flow [2024-11-22 17:29:36,376 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=444, PETRI_PLACES=168, PETRI_TRANSITIONS=176} [2024-11-22 17:29:36,376 INFO L277 CegarLoopForPetriNet]: 169 programPoint places, -1 predicate places. [2024-11-22 17:29:36,377 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 176 transitions, 444 flow [2024-11-22 17:29:36,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 157.5) internal successors, (630), 4 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:36,377 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:36,377 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] [2024-11-22 17:29:36,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 17:29:36,378 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:29:36,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:36,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1088403536, now seen corresponding path program 1 times [2024-11-22 17:29:36,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:36,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71776232] [2024-11-22 17:29:36,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:36,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:36,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:36,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:36,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71776232] [2024-11-22 17:29:36,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71776232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:36,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:36,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:36,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891116087] [2024-11-22 17:29:36,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:36,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:36,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:36,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:36,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:36,466 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 185 [2024-11-22 17:29:36,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 176 transitions, 444 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:36,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:36,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 185 [2024-11-22 17:29:36,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:36,533 INFO L124 PetriNetUnfolderBase]: 75/853 cut-off events. [2024-11-22 17:29:36,534 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-22 17:29:36,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 853 events. 75/853 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5626 event pairs, 16 based on Foata normal form. 0/704 useless extension candidates. Maximal degree in co-relation 890. Up to 75 conditions per place. [2024-11-22 17:29:36,542 INFO L140 encePairwiseOnDemand]: 180/185 looper letters, 12 selfloop transitions, 4 changer transitions 0/180 dead transitions. [2024-11-22 17:29:36,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 180 transitions, 486 flow [2024-11-22 17:29:36,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:36,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:36,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 506 transitions. [2024-11-22 17:29:36,544 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9117117117117117 [2024-11-22 17:29:36,544 INFO L175 Difference]: Start difference. First operand has 168 places, 176 transitions, 444 flow. Second operand 3 states and 506 transitions. [2024-11-22 17:29:36,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 180 transitions, 486 flow [2024-11-22 17:29:36,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 180 transitions, 484 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:29:36,550 INFO L231 Difference]: Finished difference. Result has 171 places, 179 transitions, 472 flow [2024-11-22 17:29:36,550 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=472, PETRI_PLACES=171, PETRI_TRANSITIONS=179} [2024-11-22 17:29:36,551 INFO L277 CegarLoopForPetriNet]: 169 programPoint places, 2 predicate places. [2024-11-22 17:29:36,551 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 179 transitions, 472 flow [2024-11-22 17:29:36,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:36,551 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:36,552 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:29:36,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:29:36,552 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:29:36,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:36,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1922159727, now seen corresponding path program 1 times [2024-11-22 17:29:36,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:36,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062856400] [2024-11-22 17:29:36,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:36,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:36,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:36,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:36,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062856400] [2024-11-22 17:29:36,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062856400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:36,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:36,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:36,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074245657] [2024-11-22 17:29:36,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:36,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:36,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:36,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:36,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:36,617 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 185 [2024-11-22 17:29:36,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 179 transitions, 472 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:36,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:36,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 185 [2024-11-22 17:29:36,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:36,753 INFO L124 PetriNetUnfolderBase]: 143/1342 cut-off events. [2024-11-22 17:29:36,753 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2024-11-22 17:29:36,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1793 conditions, 1342 events. 143/1342 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 11004 event pairs, 20 based on Foata normal form. 0/1105 useless extension candidates. Maximal degree in co-relation 1686. Up to 125 conditions per place. [2024-11-22 17:29:36,761 INFO L140 encePairwiseOnDemand]: 178/185 looper letters, 12 selfloop transitions, 6 changer transitions 0/187 dead transitions. [2024-11-22 17:29:36,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 187 transitions, 527 flow [2024-11-22 17:29:36,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:36,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:36,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 514 transitions. [2024-11-22 17:29:36,764 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9261261261261261 [2024-11-22 17:29:36,764 INFO L175 Difference]: Start difference. First operand has 171 places, 179 transitions, 472 flow. Second operand 3 states and 514 transitions. [2024-11-22 17:29:36,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 187 transitions, 527 flow [2024-11-22 17:29:36,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 187 transitions, 519 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:29:36,770 INFO L231 Difference]: Finished difference. Result has 173 places, 185 transitions, 514 flow [2024-11-22 17:29:36,770 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=514, PETRI_PLACES=173, PETRI_TRANSITIONS=185} [2024-11-22 17:29:36,771 INFO L277 CegarLoopForPetriNet]: 169 programPoint places, 4 predicate places. [2024-11-22 17:29:36,771 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 185 transitions, 514 flow [2024-11-22 17:29:36,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:36,772 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:36,772 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] [2024-11-22 17:29:36,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 17:29:36,772 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:29:36,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:36,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1443001506, now seen corresponding path program 1 times [2024-11-22 17:29:36,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:36,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468138530] [2024-11-22 17:29:36,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:36,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:36,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:36,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:36,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468138530] [2024-11-22 17:29:36,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468138530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:36,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:36,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:36,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558204825] [2024-11-22 17:29:36,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:36,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:36,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:36,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:36,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:36,830 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 185 [2024-11-22 17:29:36,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 185 transitions, 514 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:36,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:36,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 185 [2024-11-22 17:29:36,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:36,938 INFO L124 PetriNetUnfolderBase]: 182/1457 cut-off events. [2024-11-22 17:29:36,938 INFO L125 PetriNetUnfolderBase]: For 238/255 co-relation queries the response was YES. [2024-11-22 17:29:36,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2134 conditions, 1457 events. 182/1457 cut-off events. For 238/255 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 12074 event pairs, 29 based on Foata normal form. 0/1199 useless extension candidates. Maximal degree in co-relation 1203. Up to 139 conditions per place. [2024-11-22 17:29:36,946 INFO L140 encePairwiseOnDemand]: 180/185 looper letters, 16 selfloop transitions, 6 changer transitions 0/190 dead transitions. [2024-11-22 17:29:36,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 190 transitions, 575 flow [2024-11-22 17:29:36,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:36,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:36,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 506 transitions. [2024-11-22 17:29:36,948 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9117117117117117 [2024-11-22 17:29:36,948 INFO L175 Difference]: Start difference. First operand has 173 places, 185 transitions, 514 flow. Second operand 3 states and 506 transitions. [2024-11-22 17:29:36,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 190 transitions, 575 flow [2024-11-22 17:29:36,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 190 transitions, 561 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:29:36,952 INFO L231 Difference]: Finished difference. Result has 175 places, 189 transitions, 548 flow [2024-11-22 17:29:36,953 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=548, PETRI_PLACES=175, PETRI_TRANSITIONS=189} [2024-11-22 17:29:36,953 INFO L277 CegarLoopForPetriNet]: 169 programPoint places, 6 predicate places. [2024-11-22 17:29:36,953 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 189 transitions, 548 flow [2024-11-22 17:29:36,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:36,954 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:36,954 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] [2024-11-22 17:29:36,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 17:29:36,954 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:29:36,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:36,955 INFO L85 PathProgramCache]: Analyzing trace with hash 535479866, now seen corresponding path program 1 times [2024-11-22 17:29:36,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:36,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022364257] [2024-11-22 17:29:36,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:36,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:36,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:36,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:36,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022364257] [2024-11-22 17:29:36,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022364257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:36,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:36,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:36,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679987674] [2024-11-22 17:29:36,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:36,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:36,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:36,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:36,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:37,008 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 185 [2024-11-22 17:29:37,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 189 transitions, 548 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:37,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:37,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 185 [2024-11-22 17:29:37,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:37,176 INFO L124 PetriNetUnfolderBase]: 205/1715 cut-off events. [2024-11-22 17:29:37,176 INFO L125 PetriNetUnfolderBase]: For 119/122 co-relation queries the response was YES. [2024-11-22 17:29:37,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2470 conditions, 1715 events. 205/1715 cut-off events. For 119/122 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 15135 event pairs, 41 based on Foata normal form. 0/1412 useless extension candidates. Maximal degree in co-relation 1934. Up to 150 conditions per place. [2024-11-22 17:29:37,184 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 11 selfloop transitions, 5 changer transitions 0/194 dead transitions. [2024-11-22 17:29:37,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 194 transitions, 592 flow [2024-11-22 17:29:37,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:37,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:37,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 509 transitions. [2024-11-22 17:29:37,186 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9171171171171171 [2024-11-22 17:29:37,186 INFO L175 Difference]: Start difference. First operand has 175 places, 189 transitions, 548 flow. Second operand 3 states and 509 transitions. [2024-11-22 17:29:37,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 194 transitions, 592 flow [2024-11-22 17:29:37,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 194 transitions, 580 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:29:37,190 INFO L231 Difference]: Finished difference. Result has 177 places, 193 transitions, 574 flow [2024-11-22 17:29:37,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=574, PETRI_PLACES=177, PETRI_TRANSITIONS=193} [2024-11-22 17:29:37,191 INFO L277 CegarLoopForPetriNet]: 169 programPoint places, 8 predicate places. [2024-11-22 17:29:37,191 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 193 transitions, 574 flow [2024-11-22 17:29:37,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:37,192 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:37,192 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] [2024-11-22 17:29:37,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 17:29:37,192 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:29:37,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:37,193 INFO L85 PathProgramCache]: Analyzing trace with hash 130670299, now seen corresponding path program 1 times [2024-11-22 17:29:37,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:37,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983750254] [2024-11-22 17:29:37,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:37,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:37,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:37,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:37,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983750254] [2024-11-22 17:29:37,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983750254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:37,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:37,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:37,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845904012] [2024-11-22 17:29:37,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:37,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:37,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:37,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:37,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:37,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 185 [2024-11-22 17:29:37,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 193 transitions, 574 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:37,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:37,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 185 [2024-11-22 17:29:37,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:37,387 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([453] L710-->L710-1: Formula: (= |v_#race~turn~0_1| 0) InVars {} OutVars{#race~turn~0=|v_#race~turn~0_1|} AuxVars[] AssignedVars[#race~turn~0][135], [Black: 194#(= |thr1Thread1of1ForFork1_#t~nondet1#1| |#race~flag1~0|), Black: 197#true, 133#L726-4true, Black: 204#(= |thr2Thread1of1ForFork0_#t~nondet7#1| |#race~flag2~0|), 125#L710-1true, 214#(= |#race~flag1~0| 0), 177#true, Black: 209#(= |#race~x~0| |thr1Thread1of1ForFork1_#t~nondet4#1|), Black: 179#true, 207#true, 184#true, Black: 186#(= ~turn~0 0), 23#L703-2true]) [2024-11-22 17:29:37,387 INFO L294 olderBase$Statistics]: this new event has 74 ancestors and is cut-off event [2024-11-22 17:29:37,388 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,388 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,388 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,398 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([548] L703-1-->L703-2: Formula: (= |v_#race~turn~0_13| |v_thr1Thread1of1ForFork1_#t~nondet5#1_3|) InVars {thr1Thread1of1ForFork1_#t~nondet5#1=|v_thr1Thread1of1ForFork1_#t~nondet5#1_3|} OutVars{#race~turn~0=|v_#race~turn~0_13|, thr1Thread1of1ForFork1_#t~nondet5#1=|v_thr1Thread1of1ForFork1_#t~nondet5#1_3|} AuxVars[] AssignedVars[#race~turn~0][103], [Black: 194#(= |thr1Thread1of1ForFork1_#t~nondet1#1| |#race~flag1~0|), Black: 197#true, 133#L726-4true, Black: 204#(= |thr2Thread1of1ForFork0_#t~nondet7#1| |#race~flag2~0|), 125#L710-1true, 214#(= |#race~flag1~0| 0), 177#true, Black: 209#(= |#race~x~0| |thr1Thread1of1ForFork1_#t~nondet4#1|), Black: 181#(= |#race~turn~0| 0), 207#true, 184#true, Black: 186#(= ~turn~0 0), 23#L703-2true]) [2024-11-22 17:29:37,398 INFO L294 olderBase$Statistics]: this new event has 74 ancestors and is cut-off event [2024-11-22 17:29:37,398 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,399 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,399 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,408 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([548] L703-1-->L703-2: Formula: (= |v_#race~turn~0_13| |v_thr1Thread1of1ForFork1_#t~nondet5#1_3|) InVars {thr1Thread1of1ForFork1_#t~nondet5#1=|v_thr1Thread1of1ForFork1_#t~nondet5#1_3|} OutVars{#race~turn~0=|v_#race~turn~0_13|, thr1Thread1of1ForFork1_#t~nondet5#1=|v_thr1Thread1of1ForFork1_#t~nondet5#1_3|} AuxVars[] AssignedVars[#race~turn~0][103], [Black: 194#(= |thr1Thread1of1ForFork1_#t~nondet1#1| |#race~flag1~0|), Black: 197#true, 133#L726-4true, Black: 204#(= |thr2Thread1of1ForFork0_#t~nondet7#1| |#race~flag2~0|), 214#(= |#race~flag1~0| 0), 177#true, Black: 209#(= |#race~x~0| |thr1Thread1of1ForFork1_#t~nondet4#1|), Black: 181#(= |#race~turn~0| 0), 207#true, 184#true, Black: 186#(= ~turn~0 0), 121#L710-2true, 23#L703-2true]) [2024-11-22 17:29:37,408 INFO L294 olderBase$Statistics]: this new event has 75 ancestors and is cut-off event [2024-11-22 17:29:37,408 INFO L297 olderBase$Statistics]: existing Event has 69 ancestors and is cut-off event [2024-11-22 17:29:37,408 INFO L297 olderBase$Statistics]: existing Event has 69 ancestors and is cut-off event [2024-11-22 17:29:37,408 INFO L297 olderBase$Statistics]: existing Event has 69 ancestors and is cut-off event [2024-11-22 17:29:37,409 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([460] L710-2-->L710-4: Formula: (= v_~turn~0_4 1) InVars {~turn~0=v_~turn~0_4} OutVars{~turn~0=v_~turn~0_4} AuxVars[] AssignedVars[][128], [Black: 194#(= |thr1Thread1of1ForFork1_#t~nondet1#1| |#race~flag1~0|), Black: 197#true, 133#L726-4true, Black: 204#(= |thr2Thread1of1ForFork0_#t~nondet7#1| |#race~flag2~0|), 214#(= |#race~flag1~0| 0), 177#true, Black: 209#(= |#race~x~0| |thr1Thread1of1ForFork1_#t~nondet4#1|), 90#L703true, Black: 179#true, 160#L710-4true, 207#true, 184#true, Black: 186#(= ~turn~0 0)]) [2024-11-22 17:29:37,409 INFO L294 olderBase$Statistics]: this new event has 74 ancestors and is cut-off event [2024-11-22 17:29:37,409 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,410 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,410 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,411 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([564] L704-2-->L704-3: Formula: (= |v_#race~flag1~0_7| |v_thr1Thread1of1ForFork1_#t~nondet6#1_3|) InVars {thr1Thread1of1ForFork1_#t~nondet6#1=|v_thr1Thread1of1ForFork1_#t~nondet6#1_3|} OutVars{thr1Thread1of1ForFork1_#t~nondet6#1=|v_thr1Thread1of1ForFork1_#t~nondet6#1_3|, #race~flag1~0=|v_#race~flag1~0_7|} AuxVars[] AssignedVars[#race~flag1~0][148], [114#L704-3true, Black: 194#(= |thr1Thread1of1ForFork1_#t~nondet1#1| |#race~flag1~0|), Black: 197#true, 133#L726-4true, Black: 204#(= |thr2Thread1of1ForFork0_#t~nondet7#1| |#race~flag2~0|), 177#true, 106#L709-2true, Black: 209#(= |#race~x~0| |thr1Thread1of1ForFork1_#t~nondet4#1|), Black: 181#(= |#race~turn~0| 0), 207#true, 184#true, Black: 186#(= ~turn~0 0), 212#true]) [2024-11-22 17:29:37,411 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2024-11-22 17:29:37,411 INFO L297 olderBase$Statistics]: existing Event has 71 ancestors and is cut-off event [2024-11-22 17:29:37,411 INFO L297 olderBase$Statistics]: existing Event has 71 ancestors and is cut-off event [2024-11-22 17:29:37,412 INFO L297 olderBase$Statistics]: existing Event has 71 ancestors and is cut-off event [2024-11-22 17:29:37,544 INFO L124 PetriNetUnfolderBase]: 328/2555 cut-off events. [2024-11-22 17:29:37,545 INFO L125 PetriNetUnfolderBase]: For 212/221 co-relation queries the response was YES. [2024-11-22 17:29:37,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3796 conditions, 2555 events. 328/2555 cut-off events. For 212/221 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 25278 event pairs, 42 based on Foata normal form. 2/2106 useless extension candidates. Maximal degree in co-relation 3672. Up to 221 conditions per place. [2024-11-22 17:29:37,557 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 11 selfloop transitions, 6 changer transitions 0/199 dead transitions. [2024-11-22 17:29:37,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 199 transitions, 625 flow [2024-11-22 17:29:37,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:37,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:37,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2024-11-22 17:29:37,558 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9225225225225225 [2024-11-22 17:29:37,559 INFO L175 Difference]: Start difference. First operand has 177 places, 193 transitions, 574 flow. Second operand 3 states and 512 transitions. [2024-11-22 17:29:37,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 199 transitions, 625 flow [2024-11-22 17:29:37,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 199 transitions, 615 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:29:37,563 INFO L231 Difference]: Finished difference. Result has 179 places, 198 transitions, 614 flow [2024-11-22 17:29:37,563 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=614, PETRI_PLACES=179, PETRI_TRANSITIONS=198} [2024-11-22 17:29:37,564 INFO L277 CegarLoopForPetriNet]: 169 programPoint places, 10 predicate places. [2024-11-22 17:29:37,564 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 198 transitions, 614 flow [2024-11-22 17:29:37,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:37,564 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:37,564 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] [2024-11-22 17:29:37,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 17:29:37,565 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:29:37,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:37,565 INFO L85 PathProgramCache]: Analyzing trace with hash 972703830, now seen corresponding path program 1 times [2024-11-22 17:29:37,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:37,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801121208] [2024-11-22 17:29:37,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:37,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:37,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:37,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:37,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801121208] [2024-11-22 17:29:37,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801121208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:37,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:37,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:37,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69364547] [2024-11-22 17:29:37,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:37,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:37,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:37,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:37,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:37,611 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 185 [2024-11-22 17:29:37,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 198 transitions, 614 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:37,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:37,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 185 [2024-11-22 17:29:37,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:37,735 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([453] L710-->L710-1: Formula: (= |v_#race~turn~0_1| 0) InVars {} OutVars{#race~turn~0=|v_#race~turn~0_1|} AuxVars[] AssignedVars[#race~turn~0][139], [Black: 194#(= |thr1Thread1of1ForFork1_#t~nondet1#1| |#race~flag1~0|), Black: 197#true, 133#L726-4true, Black: 204#(= |thr2Thread1of1ForFork0_#t~nondet7#1| |#race~flag2~0|), 219#(= |#race~x~0| 0), 125#L710-1true, 214#(= |#race~flag1~0| 0), 177#true, Black: 209#(= |#race~x~0| |thr1Thread1of1ForFork1_#t~nondet4#1|), Black: 179#true, Black: 212#true, 184#true, Black: 186#(= ~turn~0 0), 23#L703-2true]) [2024-11-22 17:29:37,736 INFO L294 olderBase$Statistics]: this new event has 74 ancestors and is cut-off event [2024-11-22 17:29:37,736 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,736 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,736 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,747 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([548] L703-1-->L703-2: Formula: (= |v_#race~turn~0_13| |v_thr1Thread1of1ForFork1_#t~nondet5#1_3|) InVars {thr1Thread1of1ForFork1_#t~nondet5#1=|v_thr1Thread1of1ForFork1_#t~nondet5#1_3|} OutVars{#race~turn~0=|v_#race~turn~0_13|, thr1Thread1of1ForFork1_#t~nondet5#1=|v_thr1Thread1of1ForFork1_#t~nondet5#1_3|} AuxVars[] AssignedVars[#race~turn~0][103], [Black: 194#(= |thr1Thread1of1ForFork1_#t~nondet1#1| |#race~flag1~0|), Black: 197#true, 133#L726-4true, Black: 204#(= |thr2Thread1of1ForFork0_#t~nondet7#1| |#race~flag2~0|), 219#(= |#race~x~0| 0), 125#L710-1true, 214#(= |#race~flag1~0| 0), 177#true, Black: 209#(= |#race~x~0| |thr1Thread1of1ForFork1_#t~nondet4#1|), Black: 181#(= |#race~turn~0| 0), Black: 212#true, 184#true, Black: 186#(= ~turn~0 0), 23#L703-2true]) [2024-11-22 17:29:37,747 INFO L294 olderBase$Statistics]: this new event has 74 ancestors and is cut-off event [2024-11-22 17:29:37,747 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,747 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,748 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,758 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([548] L703-1-->L703-2: Formula: (= |v_#race~turn~0_13| |v_thr1Thread1of1ForFork1_#t~nondet5#1_3|) InVars {thr1Thread1of1ForFork1_#t~nondet5#1=|v_thr1Thread1of1ForFork1_#t~nondet5#1_3|} OutVars{#race~turn~0=|v_#race~turn~0_13|, thr1Thread1of1ForFork1_#t~nondet5#1=|v_thr1Thread1of1ForFork1_#t~nondet5#1_3|} AuxVars[] AssignedVars[#race~turn~0][103], [Black: 194#(= |thr1Thread1of1ForFork1_#t~nondet1#1| |#race~flag1~0|), Black: 197#true, 133#L726-4true, Black: 204#(= |thr2Thread1of1ForFork0_#t~nondet7#1| |#race~flag2~0|), 219#(= |#race~x~0| 0), 214#(= |#race~flag1~0| 0), 177#true, Black: 209#(= |#race~x~0| |thr1Thread1of1ForFork1_#t~nondet4#1|), Black: 181#(= |#race~turn~0| 0), Black: 212#true, 184#true, Black: 186#(= ~turn~0 0), 121#L710-2true, 23#L703-2true]) [2024-11-22 17:29:37,758 INFO L294 olderBase$Statistics]: this new event has 75 ancestors and is cut-off event [2024-11-22 17:29:37,759 INFO L297 olderBase$Statistics]: existing Event has 69 ancestors and is cut-off event [2024-11-22 17:29:37,759 INFO L297 olderBase$Statistics]: existing Event has 69 ancestors and is cut-off event [2024-11-22 17:29:37,759 INFO L297 olderBase$Statistics]: existing Event has 69 ancestors and is cut-off event [2024-11-22 17:29:37,759 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([460] L710-2-->L710-4: Formula: (= v_~turn~0_4 1) InVars {~turn~0=v_~turn~0_4} OutVars{~turn~0=v_~turn~0_4} AuxVars[] AssignedVars[][142], [Black: 194#(= |thr1Thread1of1ForFork1_#t~nondet1#1| |#race~flag1~0|), Black: 197#true, 133#L726-4true, Black: 204#(= |thr2Thread1of1ForFork0_#t~nondet7#1| |#race~flag2~0|), 219#(= |#race~x~0| 0), 214#(= |#race~flag1~0| 0), 177#true, Black: 209#(= |#race~x~0| |thr1Thread1of1ForFork1_#t~nondet4#1|), 90#L703true, Black: 179#true, 160#L710-4true, Black: 212#true, 184#true, Black: 186#(= ~turn~0 0)]) [2024-11-22 17:29:37,759 INFO L294 olderBase$Statistics]: this new event has 74 ancestors and is cut-off event [2024-11-22 17:29:37,759 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,759 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,759 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-22 17:29:37,761 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([564] L704-2-->L704-3: Formula: (= |v_#race~flag1~0_7| |v_thr1Thread1of1ForFork1_#t~nondet6#1_3|) InVars {thr1Thread1of1ForFork1_#t~nondet6#1=|v_thr1Thread1of1ForFork1_#t~nondet6#1_3|} OutVars{thr1Thread1of1ForFork1_#t~nondet6#1=|v_thr1Thread1of1ForFork1_#t~nondet6#1_3|, #race~flag1~0=|v_#race~flag1~0_7|} AuxVars[] AssignedVars[#race~flag1~0][149], [114#L704-3true, Black: 194#(= |thr1Thread1of1ForFork1_#t~nondet1#1| |#race~flag1~0|), Black: 197#true, 133#L726-4true, Black: 204#(= |thr2Thread1of1ForFork0_#t~nondet7#1| |#race~flag2~0|), 219#(= |#race~x~0| 0), 177#true, 106#L709-2true, Black: 209#(= |#race~x~0| |thr1Thread1of1ForFork1_#t~nondet4#1|), Black: 214#(= |#race~flag1~0| 0), Black: 181#(= |#race~turn~0| 0), 184#true, Black: 186#(= ~turn~0 0), 212#true]) [2024-11-22 17:29:37,761 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2024-11-22 17:29:37,761 INFO L297 olderBase$Statistics]: existing Event has 71 ancestors and is cut-off event [2024-11-22 17:29:37,761 INFO L297 olderBase$Statistics]: existing Event has 71 ancestors and is cut-off event [2024-11-22 17:29:37,761 INFO L297 olderBase$Statistics]: existing Event has 71 ancestors and is cut-off event [2024-11-22 17:29:37,887 INFO L124 PetriNetUnfolderBase]: 374/2926 cut-off events. [2024-11-22 17:29:37,887 INFO L125 PetriNetUnfolderBase]: For 391/416 co-relation queries the response was YES. [2024-11-22 17:29:37,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4514 conditions, 2926 events. 374/2926 cut-off events. For 391/416 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 30577 event pairs, 56 based on Foata normal form. 1/2454 useless extension candidates. Maximal degree in co-relation 3751. Up to 221 conditions per place. [2024-11-22 17:29:37,900 INFO L140 encePairwiseOnDemand]: 177/185 looper letters, 14 selfloop transitions, 7 changer transitions 0/206 dead transitions. [2024-11-22 17:29:37,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 206 transitions, 681 flow [2024-11-22 17:29:37,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:37,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:37,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2024-11-22 17:29:37,901 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9243243243243243 [2024-11-22 17:29:37,902 INFO L175 Difference]: Start difference. First operand has 179 places, 198 transitions, 614 flow. Second operand 3 states and 513 transitions. [2024-11-22 17:29:37,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 206 transitions, 681 flow [2024-11-22 17:29:37,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 206 transitions, 669 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:29:37,906 INFO L231 Difference]: Finished difference. Result has 181 places, 204 transitions, 664 flow [2024-11-22 17:29:37,906 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=664, PETRI_PLACES=181, PETRI_TRANSITIONS=204} [2024-11-22 17:29:37,907 INFO L277 CegarLoopForPetriNet]: 169 programPoint places, 12 predicate places. [2024-11-22 17:29:37,907 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 204 transitions, 664 flow [2024-11-22 17:29:37,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:37,907 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:37,907 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] [2024-11-22 17:29:37,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 17:29:37,908 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:29:37,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:37,908 INFO L85 PathProgramCache]: Analyzing trace with hash 105334337, now seen corresponding path program 1 times [2024-11-22 17:29:37,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:37,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157021113] [2024-11-22 17:29:37,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:37,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:29:37,917 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 17:29:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:29:37,951 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 17:29:37,952 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 17:29:37,953 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (43 of 44 remaining) [2024-11-22 17:29:37,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2024-11-22 17:29:37,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2024-11-22 17:29:37,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2024-11-22 17:29:37,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2024-11-22 17:29:37,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2024-11-22 17:29:37,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (37 of 44 remaining) [2024-11-22 17:29:37,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2024-11-22 17:29:37,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2024-11-22 17:29:37,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2024-11-22 17:29:37,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2024-11-22 17:29:37,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2024-11-22 17:29:37,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2024-11-22 17:29:37,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2024-11-22 17:29:37,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2024-11-22 17:29:37,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2024-11-22 17:29:37,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2024-11-22 17:29:37,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2024-11-22 17:29:37,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2024-11-22 17:29:37,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2024-11-22 17:29:37,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2024-11-22 17:29:37,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2024-11-22 17:29:37,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2024-11-22 17:29:37,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 44 remaining) [2024-11-22 17:29:37,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 44 remaining) [2024-11-22 17:29:37,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2024-11-22 17:29:37,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2024-11-22 17:29:37,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2024-11-22 17:29:37,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2024-11-22 17:29:37,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2024-11-22 17:29:37,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2024-11-22 17:29:37,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (12 of 44 remaining) [2024-11-22 17:29:37,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2024-11-22 17:29:37,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2024-11-22 17:29:37,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2024-11-22 17:29:37,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2024-11-22 17:29:37,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2024-11-22 17:29:37,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2024-11-22 17:29:37,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2024-11-22 17:29:37,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2024-11-22 17:29:37,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2024-11-22 17:29:37,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2024-11-22 17:29:37,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2024-11-22 17:29:37,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2024-11-22 17:29:37,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 17:29:37,965 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:29:37,993 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-22 17:29:37,993 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 17:29:37,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 05:29:37 BasicIcfg [2024-11-22 17:29:38,000 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 17:29:38,000 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 17:29:38,001 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 17:29:38,001 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 17:29:38,001 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:29:35" (3/4) ... [2024-11-22 17:29:38,002 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-22 17:29:38,044 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 17:29:38,045 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 17:29:38,045 INFO L158 Benchmark]: Toolchain (without parser) took 3581.10ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 148.4MB in the beginning and 103.1MB in the end (delta: 45.3MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. [2024-11-22 17:29:38,045 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 125.8MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 17:29:38,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.00ms. Allocated memory is still 178.3MB. Free memory was 148.2MB in the beginning and 128.7MB in the end (delta: 19.6MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2024-11-22 17:29:38,046 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.15ms. Allocated memory is still 178.3MB. Free memory was 128.7MB in the beginning and 126.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 17:29:38,046 INFO L158 Benchmark]: Boogie Preprocessor took 23.74ms. Allocated memory is still 178.3MB. Free memory was 126.6MB in the beginning and 125.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 17:29:38,046 INFO L158 Benchmark]: RCFGBuilder took 438.04ms. Allocated memory is still 178.3MB. Free memory was 125.3MB in the beginning and 107.7MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-22 17:29:38,046 INFO L158 Benchmark]: TraceAbstraction took 2633.13ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 106.9MB in the beginning and 108.4MB in the end (delta: -1.4MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2024-11-22 17:29:38,046 INFO L158 Benchmark]: Witness Printer took 44.16ms. Allocated memory is still 213.9MB. Free memory was 108.4MB in the beginning and 103.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 17:29:38,051 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 125.8MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.00ms. Allocated memory is still 178.3MB. Free memory was 148.2MB in the beginning and 128.7MB in the end (delta: 19.6MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.15ms. Allocated memory is still 178.3MB. Free memory was 128.7MB in the beginning and 126.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.74ms. Allocated memory is still 178.3MB. Free memory was 126.6MB in the beginning and 125.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 438.04ms. Allocated memory is still 178.3MB. Free memory was 125.3MB in the beginning and 107.7MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2633.13ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 106.9MB in the beginning and 108.4MB in the end (delta: -1.4MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. * Witness Printer took 44.16ms. Allocated memory is still 213.9MB. Free memory was 108.4MB in the beginning and 103.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 694]: Data race detected Data race detected The following path leads to a data race: [L689] 0 int flag1 = 0, flag2 = 0; VAL [flag1=0, flag2=0] [L690] 0 int turn; VAL [flag1=0, flag2=0, turn=0] [L691] 0 int x; VAL [flag1=0, flag2=0, turn=0, x=0] [L723] 0 pthread_t t1, t2; VAL [flag1=0, flag2=0, turn=0, x=0] [L724] EXPR 0 0<=turn VAL [flag1=0, flag2=0, turn=0, x=0] [L724] EXPR 0 0<=turn && turn<=1 VAL [flag1=0, flag2=0, turn=0, x=0] [L724] EXPR 0 turn<=1 VAL [flag1=0, flag2=0, turn=0, x=0] [L724] EXPR 0 0<=turn && turn<=1 VAL [flag1=0, flag2=0, turn=0, x=0] [L724] CALL 0 assume_abort_if_not(0<=turn && turn<=1) [L3] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, flag1=0, flag2=0, turn=0, x=0] [L724] RET 0 assume_abort_if_not(0<=turn && turn<=1) [L725] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [flag1=0, flag2=0, t1=-1, turn=0, x=0] [L693] 1 flag1 = 1 VAL [\old(_)={0:0}, _={0:0}, flag1=1, flag2=0, turn=0, x=0] [L694] 1 flag2 >= 1 VAL [\old(_)={0:0}, _={0:0}, flag1=1, flag2=0, turn=0, x=0] [L726] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [flag1=1, flag2=0, t1=-1, t2=0, turn=0, x=0] [L708] 2 flag2 = 1 VAL [\old(_)={0:0}, _={0:0}, flag1=1, flag2=1, turn=0, x=0] [L694] 1 flag2 >= 1 VAL [\old(_)={0:0}, _={0:0}, flag1=1, flag2=1, turn=0, x=0] Now there is a data race on ~flag2~0 between C: flag2 = 1 [708] and C: flag2 >= 1 [694] - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 292 locations, 44 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: 2.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 259 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 91 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 247 IncrementalHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 47 mSDtfsCounter, 247 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=664occurred in iteration=8, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 301 ConstructedInterpolants, 0 QuantifiedInterpolants, 331 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-22 17:29:38,067 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE