./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.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 881804847426e60812f8175456032b889bbad15c60068b15698c7277211e0c6e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:49:16,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:49:16,772 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:49:16,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:49:16,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:49:16,812 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:49:16,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:49:16,830 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:49:16,830 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:49:16,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:49:16,831 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:49:16,832 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:49:16,833 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:49:16,833 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:49:16,835 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:49:16,836 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:49:16,836 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:49:16,836 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:49:16,837 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:49:16,837 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:49:16,837 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:49:16,841 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:49:16,842 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:49:16,842 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:49:16,842 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:49:16,842 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:49:16,842 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:49:16,843 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:49:16,843 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:49:16,843 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:49:16,843 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:49:16,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:49:16,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:49:16,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:49:16,844 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:49:16,844 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:49:16,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:49:16,845 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:49:16,845 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:49:16,846 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:49:16,847 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:49:16,847 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 881804847426e60812f8175456032b889bbad15c60068b15698c7277211e0c6e [2024-10-13 09:49:17,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:49:17,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:49:17,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:49:17,130 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:49:17,130 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:49:17,132 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i [2024-10-13 09:49:18,676 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:49:18,913 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:49:18,914 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i [2024-10-13 09:49:18,943 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9678efc88/4b454e1c7a5745ccb9919ea5b4d834ed/FLAG6ab188d82 [2024-10-13 09:49:18,957 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9678efc88/4b454e1c7a5745ccb9919ea5b4d834ed [2024-10-13 09:49:18,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:49:18,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:49:18,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:49:18,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:49:18,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:49:18,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:49:18" (1/1) ... [2024-10-13 09:49:18,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@346f5eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:18, skipping insertion in model container [2024-10-13 09:49:18,972 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:49:18" (1/1) ... [2024-10-13 09:49:19,018 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:49:19,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:49:19,397 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:49:19,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:49:19,523 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:49:19,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:19 WrapperNode [2024-10-13 09:49:19,529 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:49:19,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:49:19,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:49:19,531 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:49:19,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:19" (1/1) ... [2024-10-13 09:49:19,593 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:19" (1/1) ... [2024-10-13 09:49:19,617 INFO L138 Inliner]: procedures = 161, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2024-10-13 09:49:19,619 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:49:19,619 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:49:19,620 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:49:19,620 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:49:19,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:19" (1/1) ... [2024-10-13 09:49:19,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:19" (1/1) ... [2024-10-13 09:49:19,632 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:19" (1/1) ... [2024-10-13 09:49:19,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:19" (1/1) ... [2024-10-13 09:49:19,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:19" (1/1) ... [2024-10-13 09:49:19,647 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:19" (1/1) ... [2024-10-13 09:49:19,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:19" (1/1) ... [2024-10-13 09:49:19,654 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:19" (1/1) ... [2024-10-13 09:49:19,657 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:49:19,661 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:49:19,661 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:49:19,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:49:19,662 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:19" (1/1) ... [2024-10-13 09:49:19,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:49:19,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:19,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 09:49:19,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 09:49:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:49:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:49:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 09:49:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 09:49:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:49:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:49:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:49:19,755 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:49:19,878 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:49:19,880 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:49:20,046 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:49:20,046 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:49:20,083 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:49:20,083 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 09:49:20,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:49:20 BoogieIcfgContainer [2024-10-13 09:49:20,084 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:49:20,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:49:20,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:49:20,091 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:49:20,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:49:18" (1/3) ... [2024-10-13 09:49:20,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@260b5ba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:49:20, skipping insertion in model container [2024-10-13 09:49:20,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:19" (2/3) ... [2024-10-13 09:49:20,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@260b5ba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:49:20, skipping insertion in model container [2024-10-13 09:49:20,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:49:20" (3/3) ... [2024-10-13 09:49:20,095 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_01-idx_rc.i [2024-10-13 09:49:20,113 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:49:20,114 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-13 09:49:20,114 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:49:20,166 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:49:20,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 128 flow [2024-10-13 09:49:20,223 INFO L124 PetriNetUnfolderBase]: 2/61 cut-off events. [2024-10-13 09:49:20,224 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:49:20,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 2/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2024-10-13 09:49:20,227 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 62 transitions, 128 flow [2024-10-13 09:49:20,230 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 61 transitions, 125 flow [2024-10-13 09:49:20,239 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:49:20,247 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;@11dc56c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:49:20,248 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-13 09:49:20,258 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:49:20,259 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2024-10-13 09:49:20,259 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:49:20,259 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:20,260 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] [2024-10-13 09:49:20,261 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:20,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:20,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1656558126, now seen corresponding path program 1 times [2024-10-13 09:49:20,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:20,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207032840] [2024-10-13 09:49:20,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:20,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:20,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:20,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:20,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:20,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207032840] [2024-10-13 09:49:20,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207032840] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:20,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:20,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:49:20,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320892381] [2024-10-13 09:49:20,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:20,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:49:20,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:20,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:49:20,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:49:20,581 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 62 [2024-10-13 09:49:20,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 61 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:20,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:20,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 62 [2024-10-13 09:49:20,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:20,659 INFO L124 PetriNetUnfolderBase]: 7/121 cut-off events. [2024-10-13 09:49:20,659 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:49:20,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 121 events. 7/121 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 247 event pairs, 6 based on Foata normal form. 1/109 useless extension candidates. Maximal degree in co-relation 113. Up to 24 conditions per place. [2024-10-13 09:49:20,664 INFO L140 encePairwiseOnDemand]: 58/62 looper letters, 10 selfloop transitions, 2 changer transitions 0/61 dead transitions. [2024-10-13 09:49:20,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 61 transitions, 149 flow [2024-10-13 09:49:20,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:49:20,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:49:20,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 165 transitions. [2024-10-13 09:49:20,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8870967741935484 [2024-10-13 09:49:20,681 INFO L175 Difference]: Start difference. First operand has 63 places, 61 transitions, 125 flow. Second operand 3 states and 165 transitions. [2024-10-13 09:49:20,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 61 transitions, 149 flow [2024-10-13 09:49:20,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 61 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:49:20,693 INFO L231 Difference]: Finished difference. Result has 65 places, 61 transitions, 134 flow [2024-10-13 09:49:20,695 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=65, PETRI_TRANSITIONS=61} [2024-10-13 09:49:20,699 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 2 predicate places. [2024-10-13 09:49:20,701 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 61 transitions, 134 flow [2024-10-13 09:49:20,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:20,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:20,703 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] [2024-10-13 09:49:20,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:49:20,703 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:20,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:20,705 INFO L85 PathProgramCache]: Analyzing trace with hash 132055358, now seen corresponding path program 1 times [2024-10-13 09:49:20,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:20,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687407185] [2024-10-13 09:49:20,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:20,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:20,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:20,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687407185] [2024-10-13 09:49:20,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687407185] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:20,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085933934] [2024-10-13 09:49:20,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:20,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:20,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:20,914 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:49:20,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 09:49:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:21,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 09:49:21,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:49:21,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 09:49:21,034 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:49:21,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085933934] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:21,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:49:21,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-13 09:49:21,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472716739] [2024-10-13 09:49:21,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:21,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:49:21,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:21,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:49:21,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:49:21,065 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 62 [2024-10-13 09:49:21,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 61 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:21,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:21,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 62 [2024-10-13 09:49:21,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:21,181 INFO L124 PetriNetUnfolderBase]: 32/210 cut-off events. [2024-10-13 09:49:21,181 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:49:21,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 210 events. 32/210 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 878 event pairs, 13 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 280. Up to 44 conditions per place. [2024-10-13 09:49:21,187 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 17 selfloop transitions, 6 changer transitions 0/71 dead transitions. [2024-10-13 09:49:21,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 71 transitions, 200 flow [2024-10-13 09:49:21,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:49:21,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:49:21,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2024-10-13 09:49:21,192 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9086021505376344 [2024-10-13 09:49:21,193 INFO L175 Difference]: Start difference. First operand has 65 places, 61 transitions, 134 flow. Second operand 3 states and 169 transitions. [2024-10-13 09:49:21,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 71 transitions, 200 flow [2024-10-13 09:49:21,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 71 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:49:21,195 INFO L231 Difference]: Finished difference. Result has 68 places, 67 transitions, 184 flow [2024-10-13 09:49:21,196 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=68, PETRI_TRANSITIONS=67} [2024-10-13 09:49:21,198 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 5 predicate places. [2024-10-13 09:49:21,199 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 67 transitions, 184 flow [2024-10-13 09:49:21,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:21,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:21,199 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:21,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 09:49:21,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:21,404 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:21,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:21,405 INFO L85 PathProgramCache]: Analyzing trace with hash 883717182, now seen corresponding path program 1 times [2024-10-13 09:49:21,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:21,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160572155] [2024-10-13 09:49:21,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:21,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:21,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:21,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:21,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160572155] [2024-10-13 09:49:21,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160572155] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:21,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263465078] [2024-10-13 09:49:21,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:21,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:21,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:21,537 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:49:21,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 09:49:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:21,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 09:49:21,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:49:21,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 09:49:21,642 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:49:21,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263465078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:21,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:49:21,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-13 09:49:21,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064783459] [2024-10-13 09:49:21,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:21,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:49:21,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:21,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:49:21,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:49:21,676 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 62 [2024-10-13 09:49:21,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 67 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:21,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:21,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 62 [2024-10-13 09:49:21,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:21,746 INFO L124 PetriNetUnfolderBase]: 47/270 cut-off events. [2024-10-13 09:49:21,747 INFO L125 PetriNetUnfolderBase]: For 89/94 co-relation queries the response was YES. [2024-10-13 09:49:21,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 270 events. 47/270 cut-off events. For 89/94 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1302 event pairs, 21 based on Foata normal form. 3/254 useless extension candidates. Maximal degree in co-relation 451. Up to 86 conditions per place. [2024-10-13 09:49:21,750 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 16 selfloop transitions, 7 changer transitions 1/74 dead transitions. [2024-10-13 09:49:21,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 74 transitions, 256 flow [2024-10-13 09:49:21,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:49:21,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:49:21,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 164 transitions. [2024-10-13 09:49:21,754 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8817204301075269 [2024-10-13 09:49:21,754 INFO L175 Difference]: Start difference. First operand has 68 places, 67 transitions, 184 flow. Second operand 3 states and 164 transitions. [2024-10-13 09:49:21,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 74 transitions, 256 flow [2024-10-13 09:49:21,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 74 transitions, 240 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:49:21,759 INFO L231 Difference]: Finished difference. Result has 70 places, 72 transitions, 228 flow [2024-10-13 09:49:21,760 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=70, PETRI_TRANSITIONS=72} [2024-10-13 09:49:21,761 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 7 predicate places. [2024-10-13 09:49:21,762 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 72 transitions, 228 flow [2024-10-13 09:49:21,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:21,762 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:21,762 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] [2024-10-13 09:49:21,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 09:49:21,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-13 09:49:21,967 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:21,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:21,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1690502569, now seen corresponding path program 1 times [2024-10-13 09:49:21,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:21,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803537747] [2024-10-13 09:49:21,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:21,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:22,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:22,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:22,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803537747] [2024-10-13 09:49:22,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803537747] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:22,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268464922] [2024-10-13 09:49:22,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:22,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:22,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:22,045 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:49:22,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 09:49:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:22,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 09:49:22,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:49:22,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 09:49:22,127 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:49:22,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268464922] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:22,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:49:22,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-13 09:49:22,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063478192] [2024-10-13 09:49:22,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:22,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:49:22,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:22,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:49:22,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:49:22,156 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 62 [2024-10-13 09:49:22,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 72 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:22,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:22,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 62 [2024-10-13 09:49:22,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:22,221 INFO L124 PetriNetUnfolderBase]: 66/337 cut-off events. [2024-10-13 09:49:22,221 INFO L125 PetriNetUnfolderBase]: For 219/227 co-relation queries the response was YES. [2024-10-13 09:49:22,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 337 events. 66/337 cut-off events. For 219/227 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1772 event pairs, 25 based on Foata normal form. 2/321 useless extension candidates. Maximal degree in co-relation 650. Up to 115 conditions per place. [2024-10-13 09:49:22,226 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 17 selfloop transitions, 7 changer transitions 7/79 dead transitions. [2024-10-13 09:49:22,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 79 transitions, 314 flow [2024-10-13 09:49:22,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:49:22,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:49:22,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 160 transitions. [2024-10-13 09:49:22,228 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8602150537634409 [2024-10-13 09:49:22,228 INFO L175 Difference]: Start difference. First operand has 70 places, 72 transitions, 228 flow. Second operand 3 states and 160 transitions. [2024-10-13 09:49:22,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 79 transitions, 314 flow [2024-10-13 09:49:22,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 79 transitions, 296 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:49:22,234 INFO L231 Difference]: Finished difference. Result has 72 places, 71 transitions, 246 flow [2024-10-13 09:49:22,234 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=72, PETRI_TRANSITIONS=71} [2024-10-13 09:49:22,235 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 9 predicate places. [2024-10-13 09:49:22,235 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 71 transitions, 246 flow [2024-10-13 09:49:22,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:22,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:22,237 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] [2024-10-13 09:49:22,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 09:49:22,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:22,438 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:22,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:22,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1054275249, now seen corresponding path program 1 times [2024-10-13 09:49:22,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:22,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913684683] [2024-10-13 09:49:22,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:22,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:22,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:22,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:22,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913684683] [2024-10-13 09:49:22,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913684683] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:22,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090567861] [2024-10-13 09:49:22,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:22,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:22,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:22,541 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:49:22,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 09:49:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:22,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 09:49:22,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:49:22,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:22,655 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:49:22,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:22,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090567861] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:49:22,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:49:22,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 09:49:22,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912197276] [2024-10-13 09:49:22,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:49:22,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:49:22,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:22,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:49:22,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:49:22,775 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 62 [2024-10-13 09:49:22,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 71 transitions, 246 flow. Second operand has 10 states, 10 states have (on average 49.1) internal successors, (491), 10 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:22,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:22,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 62 [2024-10-13 09:49:22,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:22,903 INFO L124 PetriNetUnfolderBase]: 25/269 cut-off events. [2024-10-13 09:49:22,903 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-10-13 09:49:22,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 269 events. 25/269 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1308 event pairs, 10 based on Foata normal form. 2/259 useless extension candidates. Maximal degree in co-relation 461. Up to 37 conditions per place. [2024-10-13 09:49:22,906 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 14 selfloop transitions, 9 changer transitions 0/79 dead transitions. [2024-10-13 09:49:22,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 79 transitions, 310 flow [2024-10-13 09:49:22,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 09:49:22,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 09:49:22,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 448 transitions. [2024-10-13 09:49:22,910 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8028673835125448 [2024-10-13 09:49:22,910 INFO L175 Difference]: Start difference. First operand has 72 places, 71 transitions, 246 flow. Second operand 9 states and 448 transitions. [2024-10-13 09:49:22,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 79 transitions, 310 flow [2024-10-13 09:49:22,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 79 transitions, 296 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:49:22,917 INFO L231 Difference]: Finished difference. Result has 81 places, 77 transitions, 282 flow [2024-10-13 09:49:22,917 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=282, PETRI_PLACES=81, PETRI_TRANSITIONS=77} [2024-10-13 09:49:22,918 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 18 predicate places. [2024-10-13 09:49:22,919 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 77 transitions, 282 flow [2024-10-13 09:49:22,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 49.1) internal successors, (491), 10 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:22,922 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:22,922 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:22,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-13 09:49:23,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:23,123 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:23,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:23,124 INFO L85 PathProgramCache]: Analyzing trace with hash 385879809, now seen corresponding path program 2 times [2024-10-13 09:49:23,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:23,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485338088] [2024-10-13 09:49:23,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:23,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:23,308 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:23,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:23,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485338088] [2024-10-13 09:49:23,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485338088] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:23,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233280281] [2024-10-13 09:49:23,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:49:23,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:23,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:23,311 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:49:23,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 09:49:23,380 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 09:49:23,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:49:23,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 09:49:23,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:49:23,446 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:23,446 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:49:23,545 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:23,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233280281] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:49:23,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:49:23,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-13 09:49:23,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790410004] [2024-10-13 09:49:23,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:49:23,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-13 09:49:23,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:23,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-13 09:49:23,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-13 09:49:23,592 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 62 [2024-10-13 09:49:23,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 282 flow. Second operand has 18 states, 18 states have (on average 49.05555555555556) internal successors, (883), 18 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:23,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:23,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 62 [2024-10-13 09:49:23,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:23,846 INFO L124 PetriNetUnfolderBase]: 25/289 cut-off events. [2024-10-13 09:49:23,847 INFO L125 PetriNetUnfolderBase]: For 109/109 co-relation queries the response was YES. [2024-10-13 09:49:23,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 289 events. 25/289 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1310 event pairs, 10 based on Foata normal form. 4/281 useless extension candidates. Maximal degree in co-relation 442. Up to 37 conditions per place. [2024-10-13 09:49:23,848 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 18 selfloop transitions, 21 changer transitions 0/95 dead transitions. [2024-10-13 09:49:23,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 95 transitions, 456 flow [2024-10-13 09:49:23,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 09:49:23,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-13 09:49:23,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1030 transitions. [2024-10-13 09:49:23,852 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7910906298003072 [2024-10-13 09:49:23,852 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 282 flow. Second operand 21 states and 1030 transitions. [2024-10-13 09:49:23,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 95 transitions, 456 flow [2024-10-13 09:49:23,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 95 transitions, 442 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-10-13 09:49:23,858 INFO L231 Difference]: Finished difference. Result has 105 places, 90 transitions, 406 flow [2024-10-13 09:49:23,860 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=406, PETRI_PLACES=105, PETRI_TRANSITIONS=90} [2024-10-13 09:49:23,860 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 42 predicate places. [2024-10-13 09:49:23,861 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 90 transitions, 406 flow [2024-10-13 09:49:23,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 49.05555555555556) internal successors, (883), 18 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:23,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:23,862 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:23,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 09:49:24,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:24,067 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:24,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:24,068 INFO L85 PathProgramCache]: Analyzing trace with hash 2141635517, now seen corresponding path program 3 times [2024-10-13 09:49:24,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:24,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415004678] [2024-10-13 09:49:24,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:24,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:24,439 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:24,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:24,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415004678] [2024-10-13 09:49:24,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415004678] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:24,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801629192] [2024-10-13 09:49:24,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 09:49:24,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:24,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:24,447 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:49:24,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 09:49:24,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-10-13 09:49:24,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:49:24,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 09:49:24,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:49:24,635 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:24,637 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:49:24,854 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:24,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801629192] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:49:24,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:49:24,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-13 09:49:24,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445464998] [2024-10-13 09:49:24,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:49:24,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 09:49:24,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:24,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 09:49:24,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-13 09:49:24,893 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 62 [2024-10-13 09:49:24,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 90 transitions, 406 flow. Second operand has 23 states, 23 states have (on average 49.130434782608695) internal successors, (1130), 23 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:24,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:24,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 62 [2024-10-13 09:49:24,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:25,263 INFO L124 PetriNetUnfolderBase]: 25/304 cut-off events. [2024-10-13 09:49:25,263 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2024-10-13 09:49:25,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 675 conditions, 304 events. 25/304 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1303 event pairs, 10 based on Foata normal form. 3/295 useless extension candidates. Maximal degree in co-relation 446. Up to 37 conditions per place. [2024-10-13 09:49:25,265 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 21 selfloop transitions, 30 changer transitions 0/107 dead transitions. [2024-10-13 09:49:25,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 107 transitions, 636 flow [2024-10-13 09:49:25,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-13 09:49:25,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-13 09:49:25,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 1464 transitions. [2024-10-13 09:49:25,269 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7870967741935484 [2024-10-13 09:49:25,270 INFO L175 Difference]: Start difference. First operand has 105 places, 90 transitions, 406 flow. Second operand 30 states and 1464 transitions. [2024-10-13 09:49:25,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 107 transitions, 636 flow [2024-10-13 09:49:25,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 107 transitions, 606 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-10-13 09:49:25,275 INFO L231 Difference]: Finished difference. Result has 132 places, 100 transitions, 534 flow [2024-10-13 09:49:25,275 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=534, PETRI_PLACES=132, PETRI_TRANSITIONS=100} [2024-10-13 09:49:25,276 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 69 predicate places. [2024-10-13 09:49:25,276 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 100 transitions, 534 flow [2024-10-13 09:49:25,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 49.130434782608695) internal successors, (1130), 23 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:25,278 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:25,278 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:25,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-13 09:49:25,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:25,482 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:25,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:25,483 INFO L85 PathProgramCache]: Analyzing trace with hash -17517743, now seen corresponding path program 4 times [2024-10-13 09:49:25,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:25,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974690144] [2024-10-13 09:49:25,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:25,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:49:25,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:49:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:49:25,564 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:49:25,564 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:49:25,565 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-10-13 09:49:25,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-10-13 09:49:25,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-10-13 09:49:25,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-10-13 09:49:25,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-10-13 09:49:25,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-10-13 09:49:25,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-10-13 09:49:25,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 09:49:25,569 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1] [2024-10-13 09:49:25,635 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 09:49:25,636 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 09:49:25,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:49:25 BasicIcfg [2024-10-13 09:49:25,644 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 09:49:25,645 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 09:49:25,645 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 09:49:25,645 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 09:49:25,646 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:49:20" (3/4) ... [2024-10-13 09:49:25,647 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-13 09:49:25,648 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 09:49:25,649 INFO L158 Benchmark]: Toolchain (without parser) took 6688.47ms. Allocated memory was 180.4MB in the beginning and 228.6MB in the end (delta: 48.2MB). Free memory was 112.6MB in the beginning and 195.1MB in the end (delta: -82.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 09:49:25,649 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 09:49:25,649 INFO L158 Benchmark]: CACSL2BoogieTranslator took 568.06ms. Allocated memory is still 180.4MB. Free memory was 112.6MB in the beginning and 149.5MB in the end (delta: -36.9MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2024-10-13 09:49:25,650 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.99ms. Allocated memory is still 180.4MB. Free memory was 149.5MB in the beginning and 147.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 09:49:25,650 INFO L158 Benchmark]: Boogie Preprocessor took 40.79ms. Allocated memory is still 180.4MB. Free memory was 147.5MB in the beginning and 146.8MB in the end (delta: 720.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 09:49:25,653 INFO L158 Benchmark]: RCFGBuilder took 423.59ms. Allocated memory is still 180.4MB. Free memory was 146.1MB in the beginning and 132.1MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-13 09:49:25,653 INFO L158 Benchmark]: TraceAbstraction took 5555.90ms. Allocated memory was 180.4MB in the beginning and 228.6MB in the end (delta: 48.2MB). Free memory was 131.5MB in the beginning and 195.1MB in the end (delta: -63.7MB). Peak memory consumption was 102.0MB. Max. memory is 16.1GB. [2024-10-13 09:49:25,653 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 228.6MB. Free memory is still 195.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 09:49:25,654 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 104.9MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 568.06ms. Allocated memory is still 180.4MB. Free memory was 112.6MB in the beginning and 149.5MB in the end (delta: -36.9MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.99ms. Allocated memory is still 180.4MB. Free memory was 149.5MB in the beginning and 147.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.79ms. Allocated memory is still 180.4MB. Free memory was 147.5MB in the beginning and 146.8MB in the end (delta: 720.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 423.59ms. Allocated memory is still 180.4MB. Free memory was 146.1MB in the beginning and 132.1MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5555.90ms. Allocated memory was 180.4MB in the beginning and 228.6MB in the end (delta: 48.2MB). Free memory was 131.5MB in the beginning and 195.1MB in the end (delta: -63.7MB). Peak memory consumption was 102.0MB. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 228.6MB. Free memory is still 195.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int data; VAL [data=0] [L680] 0 pthread_mutex_t m[10]; VAL [data=0, m={1:0}] [L688] 0 int i = 0; VAL [data=0, i=0, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=0, m={1:0}] [L688] 0 i++ VAL [data=0, i=1, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=1, m={1:0}] [L688] 0 i++ VAL [data=0, i=2, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=2, m={1:0}] [L688] 0 i++ VAL [data=0, i=3, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=3, m={1:0}] [L688] 0 i++ VAL [data=0, i=4, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=4, m={1:0}] [L688] 0 i++ VAL [data=0, i=5, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=5, m={1:0}] [L688] 0 i++ VAL [data=0, i=6, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=6, m={1:0}] [L688] 0 i++ VAL [data=0, i=7, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=7, m={1:0}] [L688] 0 i++ VAL [data=0, i=8, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=8, m={1:0}] [L688] 0 i++ VAL [data=0, i=9, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=9, m={1:0}] [L688] 0 i++ VAL [data=0, i=10, m={1:0}] [L688] COND FALSE 0 !(i < 10) VAL [data=0, i=10, m={1:0}] [L690] 0 pthread_t id; VAL [data=0, m={1:0}] [L691] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, data=0, id=-1, m={1:0}] [L683] 1 data++ VAL [\old(arg)={0:0}, arg={0:0}, data=0, m={1:0}] [L693] 0 data++ VAL [\old(arg)={0:0}, arg={0:0}, data=0, id=-1, m={1:0}] [L683] 1 data++ VAL [\old(arg)={0:0}, arg={0:0}, data=1, m={1:0}] [L693] 0 data++ VAL [\old(arg)={0:0}, arg={0:0}, data=1, id=-1, m={1:0}] Now there is a data race on ~data~0 between C: data++ [683] and C: data++ [693] - 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: 691]: 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: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 81 locations, 7 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: 5.4s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 202 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 116 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 93 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 570 IncrementalHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 23 mSDtfsCounter, 570 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 459 GetRequests, 356 SyntacticMatches, 11 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=534occurred in iteration=7, InterpolantAutomatonStates: 72, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 576 NumberOfCodeBlocks, 576 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 627 ConstructedInterpolants, 0 QuantifiedInterpolants, 1019 SizeOfPredicates, 22 NumberOfNonLiveVariables, 546 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 3/399 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! [2024-10-13 09:49:25,686 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