./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-lit/fkp2013_variant-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-lit/fkp2013_variant-1.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 6f1a33edf94ce8e584ad249b95ad5bb2102c6ab4d820eebd8874b39ecbf22785 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:29:51,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:29:51,981 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:29:51,984 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:29:51,985 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:29:52,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:29:52,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:29:52,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:29:52,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:29:52,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:29:52,025 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:29:52,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:29:52,026 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:29:52,026 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:29:52,026 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:29:52,026 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:29:52,027 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:29:52,027 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:29:52,027 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:29:52,027 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:29:52,027 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:29:52,030 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:29:52,030 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:29:52,031 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:29:52,031 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:29:52,032 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:29:52,033 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:29:52,033 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:29:52,033 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:29:52,033 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:29:52,033 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:29:52,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:29:52,034 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:29:52,034 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:29:52,034 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:29:52,034 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:29:52,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:29:52,035 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:29:52,035 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:29:52,036 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:29:52,036 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:29:52,037 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f1a33edf94ce8e584ad249b95ad5bb2102c6ab4d820eebd8874b39ecbf22785 [2024-11-16 23:29:52,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:29:52,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:29:52,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:29:52,287 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:29:52,288 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:29:52,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-lit/fkp2013_variant-1.i [2024-11-16 23:29:53,625 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:29:53,832 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:29:53,833 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-lit/fkp2013_variant-1.i [2024-11-16 23:29:53,845 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06103daae/4412499db89a4277a92221a789211680/FLAG361154f99 [2024-11-16 23:29:53,857 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06103daae/4412499db89a4277a92221a789211680 [2024-11-16 23:29:53,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:29:53,861 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:29:53,862 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:29:53,862 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:29:53,870 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:29:53,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:29:53" (1/1) ... [2024-11-16 23:29:53,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7404cce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:53, skipping insertion in model container [2024-11-16 23:29:53,872 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:29:53" (1/1) ... [2024-11-16 23:29:53,913 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:29:54,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:29:54,234 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:29:54,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:29:54,316 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:29:54,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:54 WrapperNode [2024-11-16 23:29:54,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:29:54,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:29:54,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:29:54,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:29:54,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:54" (1/1) ... [2024-11-16 23:29:54,334 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:54" (1/1) ... [2024-11-16 23:29:54,350 INFO L138 Inliner]: procedures = 171, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-16 23:29:54,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:29:54,351 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:29:54,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:29:54,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:29:54,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:54" (1/1) ... [2024-11-16 23:29:54,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:54" (1/1) ... [2024-11-16 23:29:54,362 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:54" (1/1) ... [2024-11-16 23:29:54,362 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:54" (1/1) ... [2024-11-16 23:29:54,367 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:54" (1/1) ... [2024-11-16 23:29:54,371 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:54" (1/1) ... [2024-11-16 23:29:54,373 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:54" (1/1) ... [2024-11-16 23:29:54,374 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:54" (1/1) ... [2024-11-16 23:29:54,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:29:54,376 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:29:54,376 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:29:54,376 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:29:54,377 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:54" (1/1) ... [2024-11-16 23:29:54,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:29:54,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:29:54,415 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) [2024-11-16 23:29:54,420 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 [2024-11-16 23:29:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-16 23:29:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-16 23:29:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-16 23:29:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-16 23:29:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:29:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:29:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:29:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:29:54,467 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:29:54,611 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:29:54,613 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:29:54,753 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:29:54,753 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:29:54,769 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:29:54,770 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:29:54,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:29:54 BoogieIcfgContainer [2024-11-16 23:29:54,771 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:29:54,773 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:29:54,774 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:29:54,781 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:29:54,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:29:53" (1/3) ... [2024-11-16 23:29:54,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76abccb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:29:54, skipping insertion in model container [2024-11-16 23:29:54,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:54" (2/3) ... [2024-11-16 23:29:54,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76abccb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:29:54, skipping insertion in model container [2024-11-16 23:29:54,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:29:54" (3/3) ... [2024-11-16 23:29:54,783 INFO L112 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-1.i [2024-11-16 23:29:54,799 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:29:54,799 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-16 23:29:54,799 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:29:54,843 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:29:54,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 106 transitions, 220 flow [2024-11-16 23:29:54,916 INFO L124 PetriNetUnfolderBase]: 5/119 cut-off events. [2024-11-16 23:29:54,917 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:29:54,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 119 events. 5/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 182 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 86. Up to 4 conditions per place. [2024-11-16 23:29:54,924 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 106 transitions, 220 flow [2024-11-16 23:29:54,929 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 105 transitions, 217 flow [2024-11-16 23:29:54,936 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:29:54,941 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;@1d365775, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:29:54,941 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-16 23:29:54,946 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:29:54,947 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-16 23:29:54,947 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:29:54,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:29:54,947 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:29:54,948 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-16 23:29:54,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:29:54,952 INFO L85 PathProgramCache]: Analyzing trace with hash 54658555, now seen corresponding path program 1 times [2024-11-16 23:29:54,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:29:54,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582448889] [2024-11-16 23:29:54,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:29:54,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:29:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:29:55,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:29:55,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:29:55,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582448889] [2024-11-16 23:29:55,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582448889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:29:55,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:29:55,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:29:55,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796819220] [2024-11-16 23:29:55,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:29:55,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:29:55,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:29:55,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:29:55,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:29:55,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 106 [2024-11-16 23:29:55,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 105 transitions, 217 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2024-11-16 23:29:55,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:29:55,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 106 [2024-11-16 23:29:55,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:29:55,328 INFO L124 PetriNetUnfolderBase]: 11/231 cut-off events. [2024-11-16 23:29:55,328 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-16 23:29:55,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 231 events. 11/231 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 825 event pairs, 11 based on Foata normal form. 18/209 useless extension candidates. Maximal degree in co-relation 218. Up to 31 conditions per place. [2024-11-16 23:29:55,331 INFO L140 encePairwiseOnDemand]: 99/106 looper letters, 9 selfloop transitions, 2 changer transitions 1/98 dead transitions. [2024-11-16 23:29:55,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 98 transitions, 225 flow [2024-11-16 23:29:55,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:29:55,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:29:55,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2024-11-16 23:29:55,342 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.889937106918239 [2024-11-16 23:29:55,344 INFO L175 Difference]: Start difference. First operand has 107 places, 105 transitions, 217 flow. Second operand 3 states and 283 transitions. [2024-11-16 23:29:55,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 98 transitions, 225 flow [2024-11-16 23:29:55,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 98 transitions, 224 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:29:55,353 INFO L231 Difference]: Finished difference. Result has 105 places, 97 transitions, 204 flow [2024-11-16 23:29:55,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=105, PETRI_TRANSITIONS=97} [2024-11-16 23:29:55,363 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, -2 predicate places. [2024-11-16 23:29:55,363 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 97 transitions, 204 flow [2024-11-16 23:29:55,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2024-11-16 23:29:55,363 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:29:55,363 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] [2024-11-16 23:29:55,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:29:55,364 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-16 23:29:55,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:29:55,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1342218699, now seen corresponding path program 1 times [2024-11-16 23:29:55,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:29:55,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262841652] [2024-11-16 23:29:55,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:29:55,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:29:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:29:55,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:29:55,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:29:55,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262841652] [2024-11-16 23:29:55,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262841652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:29:55,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:29:55,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:29:55,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437528752] [2024-11-16 23:29:55,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:29:55,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:29:55,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:29:55,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:29:55,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:29:55,452 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 106 [2024-11-16 23:29:55,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 97 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2024-11-16 23:29:55,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:29:55,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 106 [2024-11-16 23:29:55,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:29:55,485 INFO L124 PetriNetUnfolderBase]: 5/161 cut-off events. [2024-11-16 23:29:55,485 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 23:29:55,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 161 events. 5/161 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 456 event pairs, 5 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 169. Up to 22 conditions per place. [2024-11-16 23:29:55,487 INFO L140 encePairwiseOnDemand]: 103/106 looper letters, 9 selfloop transitions, 2 changer transitions 0/96 dead transitions. [2024-11-16 23:29:55,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 96 transitions, 224 flow [2024-11-16 23:29:55,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:29:55,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:29:55,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2024-11-16 23:29:55,489 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8773584905660378 [2024-11-16 23:29:55,489 INFO L175 Difference]: Start difference. First operand has 105 places, 97 transitions, 204 flow. Second operand 3 states and 279 transitions. [2024-11-16 23:29:55,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 96 transitions, 224 flow [2024-11-16 23:29:55,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 96 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:29:55,491 INFO L231 Difference]: Finished difference. Result has 103 places, 96 transitions, 202 flow [2024-11-16 23:29:55,492 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=103, PETRI_TRANSITIONS=96} [2024-11-16 23:29:55,492 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, -4 predicate places. [2024-11-16 23:29:55,493 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 96 transitions, 202 flow [2024-11-16 23:29:55,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2024-11-16 23:29:55,493 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:29:55,493 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] [2024-11-16 23:29:55,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:29:55,493 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-16 23:29:55,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:29:55,494 INFO L85 PathProgramCache]: Analyzing trace with hash -934280695, now seen corresponding path program 1 times [2024-11-16 23:29:55,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:29:55,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360159825] [2024-11-16 23:29:55,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:29:55,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:29:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:29:55,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:29:55,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:29:55,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360159825] [2024-11-16 23:29:55,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360159825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:29:55,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:29:55,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:29:55,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847349847] [2024-11-16 23:29:55,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:29:55,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:29:55,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:29:55,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:29:55,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:29:55,554 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 106 [2024-11-16 23:29:55,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 96 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2024-11-16 23:29:55,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:29:55,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 106 [2024-11-16 23:29:55,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:29:55,584 INFO L124 PetriNetUnfolderBase]: 10/216 cut-off events. [2024-11-16 23:29:55,585 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:29:55,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 216 events. 10/216 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 824 event pairs, 10 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 226. Up to 30 conditions per place. [2024-11-16 23:29:55,587 INFO L140 encePairwiseOnDemand]: 102/106 looper letters, 8 selfloop transitions, 1 changer transitions 0/93 dead transitions. [2024-11-16 23:29:55,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 93 transitions, 214 flow [2024-11-16 23:29:55,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:29:55,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:29:55,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2024-11-16 23:29:55,589 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8773584905660378 [2024-11-16 23:29:55,589 INFO L175 Difference]: Start difference. First operand has 103 places, 96 transitions, 202 flow. Second operand 3 states and 279 transitions. [2024-11-16 23:29:55,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 93 transitions, 214 flow [2024-11-16 23:29:55,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 93 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:29:55,591 INFO L231 Difference]: Finished difference. Result has 100 places, 93 transitions, 194 flow [2024-11-16 23:29:55,591 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=100, PETRI_TRANSITIONS=93} [2024-11-16 23:29:55,592 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, -7 predicate places. [2024-11-16 23:29:55,592 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 93 transitions, 194 flow [2024-11-16 23:29:55,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2024-11-16 23:29:55,592 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:29:55,593 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] [2024-11-16 23:29:55,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:29:55,593 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-16 23:29:55,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:29:55,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1496869216, now seen corresponding path program 1 times [2024-11-16 23:29:55,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:29:55,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907951537] [2024-11-16 23:29:55,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:29:55,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:29:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:29:55,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:29:55,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:29:55,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907951537] [2024-11-16 23:29:55,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907951537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:29:55,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:29:55,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:29:55,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090097195] [2024-11-16 23:29:55,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:29:55,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:29:55,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:29:55,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:29:55,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:29:55,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 106 [2024-11-16 23:29:55,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 93 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2024-11-16 23:29:55,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:29:55,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 106 [2024-11-16 23:29:55,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:29:55,711 INFO L124 PetriNetUnfolderBase]: 7/176 cut-off events. [2024-11-16 23:29:55,712 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-16 23:29:55,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 176 events. 7/176 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 516 event pairs, 2 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 180. Up to 19 conditions per place. [2024-11-16 23:29:55,713 INFO L140 encePairwiseOnDemand]: 100/106 looper letters, 9 selfloop transitions, 4 changer transitions 0/96 dead transitions. [2024-11-16 23:29:55,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 96 transitions, 229 flow [2024-11-16 23:29:55,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:29:55,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:29:55,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2024-11-16 23:29:55,714 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9056603773584906 [2024-11-16 23:29:55,715 INFO L175 Difference]: Start difference. First operand has 100 places, 93 transitions, 194 flow. Second operand 3 states and 288 transitions. [2024-11-16 23:29:55,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 96 transitions, 229 flow [2024-11-16 23:29:55,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 96 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:29:55,717 INFO L231 Difference]: Finished difference. Result has 102 places, 95 transitions, 221 flow [2024-11-16 23:29:55,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=102, PETRI_TRANSITIONS=95} [2024-11-16 23:29:55,718 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, -5 predicate places. [2024-11-16 23:29:55,718 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 95 transitions, 221 flow [2024-11-16 23:29:55,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2024-11-16 23:29:55,719 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:29:55,719 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:29:55,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:29:55,720 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-16 23:29:55,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:29:55,722 INFO L85 PathProgramCache]: Analyzing trace with hash 798960724, now seen corresponding path program 1 times [2024-11-16 23:29:55,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:29:55,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368485105] [2024-11-16 23:29:55,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:29:55,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:29:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:29:55,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:29:55,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:29:55,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368485105] [2024-11-16 23:29:55,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368485105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:29:55,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:29:55,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:29:55,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659564671] [2024-11-16 23:29:55,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:29:55,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:29:55,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:29:55,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:29:55,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:29:55,840 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 106 [2024-11-16 23:29:55,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 95 transitions, 221 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2024-11-16 23:29:55,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:29:55,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 106 [2024-11-16 23:29:55,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:29:55,878 INFO L124 PetriNetUnfolderBase]: 6/214 cut-off events. [2024-11-16 23:29:55,878 INFO L125 PetriNetUnfolderBase]: For 23/25 co-relation queries the response was YES. [2024-11-16 23:29:55,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 214 events. 6/214 cut-off events. For 23/25 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 738 event pairs, 2 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 250. Up to 23 conditions per place. [2024-11-16 23:29:55,881 INFO L140 encePairwiseOnDemand]: 101/106 looper letters, 11 selfloop transitions, 4 changer transitions 0/98 dead transitions. [2024-11-16 23:29:55,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 98 transitions, 261 flow [2024-11-16 23:29:55,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:29:55,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:29:55,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2024-11-16 23:29:55,883 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9025157232704403 [2024-11-16 23:29:55,883 INFO L175 Difference]: Start difference. First operand has 102 places, 95 transitions, 221 flow. Second operand 3 states and 287 transitions. [2024-11-16 23:29:55,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 98 transitions, 261 flow [2024-11-16 23:29:55,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 98 transitions, 251 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:29:55,889 INFO L231 Difference]: Finished difference. Result has 104 places, 98 transitions, 245 flow [2024-11-16 23:29:55,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=245, PETRI_PLACES=104, PETRI_TRANSITIONS=98} [2024-11-16 23:29:55,890 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, -3 predicate places. [2024-11-16 23:29:55,892 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 98 transitions, 245 flow [2024-11-16 23:29:55,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2024-11-16 23:29:55,893 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:29:55,894 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:29:55,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:29:55,894 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-16 23:29:55,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:29:55,897 INFO L85 PathProgramCache]: Analyzing trace with hash -142901122, now seen corresponding path program 1 times [2024-11-16 23:29:55,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:29:55,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445837706] [2024-11-16 23:29:55,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:29:55,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:29:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:29:55,935 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:29:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:29:55,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:29:55,981 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:29:55,983 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2024-11-16 23:29:55,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2024-11-16 23:29:55,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2024-11-16 23:29:55,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2024-11-16 23:29:55,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2024-11-16 23:29:55,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2024-11-16 23:29:55,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2024-11-16 23:29:55,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2024-11-16 23:29:55,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2024-11-16 23:29:55,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 14 remaining) [2024-11-16 23:29:55,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 14 remaining) [2024-11-16 23:29:55,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2024-11-16 23:29:55,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2024-11-16 23:29:55,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2024-11-16 23:29:55,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:29:55,992 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-16 23:29:56,046 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 23:29:56,046 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 23:29:56,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:29:56 BasicIcfg [2024-11-16 23:29:56,050 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 23:29:56,051 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 23:29:56,051 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 23:29:56,051 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 23:29:56,051 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:29:54" (3/4) ... [2024-11-16 23:29:56,053 INFO L137 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-16 23:29:56,121 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 23:29:56,121 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 23:29:56,122 INFO L158 Benchmark]: Toolchain (without parser) took 2261.17ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 104.6MB in the beginning and 163.9MB in the end (delta: -59.3MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2024-11-16 23:29:56,122 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 159.4MB. Free memory was 124.2MB in the beginning and 124.0MB in the end (delta: 243.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 23:29:56,122 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.68ms. Allocated memory is still 159.4MB. Free memory was 104.6MB in the beginning and 81.6MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-16 23:29:56,122 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.97ms. Allocated memory is still 159.4MB. Free memory was 81.6MB in the beginning and 79.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 23:29:56,122 INFO L158 Benchmark]: Boogie Preprocessor took 24.27ms. Allocated memory is still 159.4MB. Free memory was 79.4MB in the beginning and 78.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 23:29:56,123 INFO L158 Benchmark]: IcfgBuilder took 394.66ms. Allocated memory is still 159.4MB. Free memory was 78.1MB in the beginning and 63.5MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-16 23:29:56,123 INFO L158 Benchmark]: TraceAbstraction took 1277.75ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 62.7MB in the beginning and 170.2MB in the end (delta: -107.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 23:29:56,123 INFO L158 Benchmark]: Witness Printer took 70.33ms. Allocated memory is still 232.8MB. Free memory was 170.2MB in the beginning and 163.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-16 23:29:56,124 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 159.4MB. Free memory was 124.2MB in the beginning and 124.0MB in the end (delta: 243.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.68ms. Allocated memory is still 159.4MB. Free memory was 104.6MB in the beginning and 81.6MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.97ms. Allocated memory is still 159.4MB. Free memory was 81.6MB in the beginning and 79.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.27ms. Allocated memory is still 159.4MB. Free memory was 79.4MB in the beginning and 78.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 394.66ms. Allocated memory is still 159.4MB. Free memory was 78.1MB in the beginning and 63.5MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1277.75ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 62.7MB in the beginning and 170.2MB in the end (delta: -107.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 70.33ms. Allocated memory is still 232.8MB. Free memory was 170.2MB in the beginning and 163.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 700]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int x; VAL [x=0] [L698] 0 volatile int n; VAL [n=0, x=0] [L710] 0 pthread_t t1, t2; VAL [\old(argc)=52, \old(argv)={53:50}, argc=52, n=0, x=0] [L711] 0 int i; VAL [\old(argc)=52, \old(argv)={53:50}, argc=52, n=0, x=0] [L712] 0 x = 0 VAL [\old(argc)=52, \old(argv)={53:50}, argc=52, n=0, x=0] [L713] 0 n = __VERIFIER_nondet_int() VAL [\old(argc)=52, \old(argv)={53:50}, argc=52, n=1, x=0] [L714] EXPR 0 n > 0 VAL [\old(argc)=52, \old(argv)={53:50}, argc=52, n=1, x=0] [L714] CALL 0 assume_abort_if_not(n > 0) [L686] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, n=1, x=0] [L714] RET 0 assume_abort_if_not(n > 0) [L715] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=52, \old(argv)={53:50}, argc=52, n=1, t1=-1, x=0] [L716] 0 i = 0 VAL [\old(argc)=52, \old(argv)={53:50}, argc=52, i=0, n=1, t1=-1, x=0] [L716] 0 i < n VAL [\old(argc)=52, \old(argv)={53:50}, argc=52, i=0, n=1, t1=-1, x=0] [L716] COND TRUE 0 i < n VAL [\old(argc)=52, \old(argv)={53:50}, argc=52, i=0, n=1, t1=-1, x=0] [L717] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(arg)={0:0}, \old(argc)=52, \old(argv)={53:50}, argc=52, i=0, n=1, t1=-1, t2=0, x=0] [L700] 1 x <= n VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, n=1, x=0] [L704] 2 int t; VAL [\old(arg)={0:0}, arg={0:0}, n=1, x=0] [L705] 2 t = x VAL [\old(arg)={0:0}, arg={0:0}, n=1, t=0, x=0] [L706] 2 x = t + 1 VAL [\old(arg)={0:0}, arg={0:0}, n=1, t=0, x=1] [L700] 1 x <= n VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, n=1, t=0, x=1] Now there is a data race on ~x~0 between C: x = t + 1 [706] and C: x <= n [700] - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: 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: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: 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: 715]: 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: 717]: 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, 140 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 106 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 20 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=245occurred in iteration=5, InterpolantAutomatonStates: 15, 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, 0.2s InterpolantComputationTime, 238 NumberOfCodeBlocks, 238 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2024-11-16 23:29:56,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE