./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/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-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:28:59,272 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:28:59,343 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:28:59,351 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:28:59,351 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:28:59,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:28:59,380 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:28:59,381 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:28:59,381 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:28:59,381 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:28:59,382 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:28:59,382 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:28:59,382 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:28:59,393 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:28:59,393 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:28:59,393 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:28:59,394 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:28:59,394 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:28:59,394 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:28:59,396 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:28:59,398 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:28:59,400 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:28:59,401 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:28:59,401 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:28:59,401 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:28:59,401 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:28:59,401 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:28:59,401 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:28:59,401 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:28:59,402 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:28:59,402 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:28:59,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:28:59,402 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:28:59,402 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:28:59,402 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:28:59,402 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:28:59,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:28:59,403 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:28:59,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:28:59,403 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:28:59,403 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:28:59,404 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 881804847426e60812f8175456032b889bbad15c60068b15698c7277211e0c6e [2024-11-12 12:28:59,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:28:59,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:28:59,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:28:59,697 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:28:59,697 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:28:59,698 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i [2024-11-12 12:29:01,039 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:29:01,301 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:29:01,301 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i [2024-11-12 12:29:01,316 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/075168f11/d7aec2d81c4e48beb00807da4c3f8a86/FLAGf7d3deccb [2024-11-12 12:29:01,357 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/075168f11/d7aec2d81c4e48beb00807da4c3f8a86 [2024-11-12 12:29:01,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:29:01,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:29:01,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:29:01,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:29:01,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:29:01,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:29:01" (1/1) ... [2024-11-12 12:29:01,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bd945d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:01, skipping insertion in model container [2024-11-12 12:29:01,373 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:29:01" (1/1) ... [2024-11-12 12:29:01,421 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:29:01,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:29:01,746 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:29:01,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:29:01,824 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:29:01,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:01 WrapperNode [2024-11-12 12:29:01,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:29:01,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:29:01,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:29:01,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:29:01,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:01" (1/1) ... [2024-11-12 12:29:01,847 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:01" (1/1) ... [2024-11-12 12:29:01,870 INFO L138 Inliner]: procedures = 162, calls = 58, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 91 [2024-11-12 12:29:01,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:29:01,871 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:29:01,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:29:01,871 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:29:01,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:01" (1/1) ... [2024-11-12 12:29:01,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:01" (1/1) ... [2024-11-12 12:29:01,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:01" (1/1) ... [2024-11-12 12:29:01,885 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:01" (1/1) ... [2024-11-12 12:29:01,891 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:01" (1/1) ... [2024-11-12 12:29:01,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:01" (1/1) ... [2024-11-12 12:29:01,898 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:01" (1/1) ... [2024-11-12 12:29:01,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:01" (1/1) ... [2024-11-12 12:29:01,903 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:29:01,904 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:29:01,904 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:29:01,904 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:29:01,905 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:01" (1/1) ... [2024-11-12 12:29:01,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:29:01,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:29:01,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 12:29:01,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 12:29:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 12:29:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:29:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-12 12:29:01,977 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-12 12:29:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:29:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 12:29:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:29:01,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:29:01,978 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:29:02,072 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:29:02,075 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:29:02,236 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:29:02,236 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:29:02,268 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:29:02,269 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 12:29:02,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:29:02 BoogieIcfgContainer [2024-11-12 12:29:02,269 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:29:02,271 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:29:02,271 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:29:02,274 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:29:02,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:29:01" (1/3) ... [2024-11-12 12:29:02,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fdcf58a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:29:02, skipping insertion in model container [2024-11-12 12:29:02,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:01" (2/3) ... [2024-11-12 12:29:02,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fdcf58a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:29:02, skipping insertion in model container [2024-11-12 12:29:02,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:29:02" (3/3) ... [2024-11-12 12:29:02,277 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_01-idx_rc.i [2024-11-12 12:29:02,290 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:29:02,290 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-12 12:29:02,290 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:29:02,330 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 12:29:02,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 111 transitions, 226 flow [2024-11-12 12:29:02,402 INFO L124 PetriNetUnfolderBase]: 2/110 cut-off events. [2024-11-12 12:29:02,402 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:29:02,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 110 events. 2/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2024-11-12 12:29:02,407 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 111 transitions, 226 flow [2024-11-12 12:29:02,410 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 110 transitions, 223 flow [2024-11-12 12:29:02,418 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:29:02,423 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;@246c481c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:29:02,425 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-12 12:29:02,449 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:29:02,449 INFO L124 PetriNetUnfolderBase]: 2/79 cut-off events. [2024-11-12 12:29:02,449 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:29:02,450 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:29:02,450 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:29:02,451 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)] === [2024-11-12 12:29:02,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:29:02,455 INFO L85 PathProgramCache]: Analyzing trace with hash 2030175117, now seen corresponding path program 1 times [2024-11-12 12:29:02,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:29:02,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141156078] [2024-11-12 12:29:02,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:02,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:29:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:02,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:02,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:29:02,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141156078] [2024-11-12 12:29:02,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141156078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:29:02,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:29:02,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:29:02,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782962412] [2024-11-12 12:29:02,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:29:02,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:29:02,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:29:02,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:29:02,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:29:02,897 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 111 [2024-11-12 12:29:02,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 110 transitions, 223 flow. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:29:02,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:29:02,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 111 [2024-11-12 12:29:02,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:29:02,946 INFO L124 PetriNetUnfolderBase]: 7/170 cut-off events. [2024-11-12 12:29:02,946 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:29:02,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 170 events. 7/170 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 249 event pairs, 6 based on Foata normal form. 1/159 useless extension candidates. Maximal degree in co-relation 113. Up to 24 conditions per place. [2024-11-12 12:29:02,948 INFO L140 encePairwiseOnDemand]: 107/111 looper letters, 10 selfloop transitions, 2 changer transitions 0/110 dead transitions. [2024-11-12 12:29:02,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 110 transitions, 247 flow [2024-11-12 12:29:02,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:29:02,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:29:02,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2024-11-12 12:29:02,958 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9369369369369369 [2024-11-12 12:29:02,960 INFO L175 Difference]: Start difference. First operand has 112 places, 110 transitions, 223 flow. Second operand 3 states and 312 transitions. [2024-11-12 12:29:02,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 110 transitions, 247 flow [2024-11-12 12:29:02,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 110 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:29:02,966 INFO L231 Difference]: Finished difference. Result has 114 places, 110 transitions, 232 flow [2024-11-12 12:29:02,967 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=114, PETRI_TRANSITIONS=110} [2024-11-12 12:29:02,969 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, 2 predicate places. [2024-11-12 12:29:02,969 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 110 transitions, 232 flow [2024-11-12 12:29:02,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:29:02,970 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:29:02,970 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:29:02,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:29:02,970 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)] === [2024-11-12 12:29:02,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:29:02,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1906695851, now seen corresponding path program 1 times [2024-11-12 12:29:02,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:29:02,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904899142] [2024-11-12 12:29:02,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:02,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:29:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:03,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:03,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:29:03,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904899142] [2024-11-12 12:29:03,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904899142] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:29:03,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513118434] [2024-11-12 12:29:03,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:03,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:29:03,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:29:03,135 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) [2024-11-12 12:29:03,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 12:29:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:03,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 12:29:03,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:29:03,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 12:29:03,279 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 12:29:03,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513118434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:29:03,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 12:29:03,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-12 12:29:03,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38871400] [2024-11-12 12:29:03,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:29:03,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:29:03,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:29:03,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:29:03,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:29:03,303 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 111 [2024-11-12 12:29:03,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 110 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:29:03,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:29:03,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 111 [2024-11-12 12:29:03,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:29:03,364 INFO L124 PetriNetUnfolderBase]: 32/259 cut-off events. [2024-11-12 12:29:03,365 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:29:03,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 259 events. 32/259 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 878 event pairs, 13 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 280. Up to 44 conditions per place. [2024-11-12 12:29:03,368 INFO L140 encePairwiseOnDemand]: 103/111 looper letters, 17 selfloop transitions, 6 changer transitions 0/120 dead transitions. [2024-11-12 12:29:03,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 120 transitions, 298 flow [2024-11-12 12:29:03,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:29:03,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:29:03,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 316 transitions. [2024-11-12 12:29:03,372 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.948948948948949 [2024-11-12 12:29:03,372 INFO L175 Difference]: Start difference. First operand has 114 places, 110 transitions, 232 flow. Second operand 3 states and 316 transitions. [2024-11-12 12:29:03,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 120 transitions, 298 flow [2024-11-12 12:29:03,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 120 transitions, 296 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:29:03,375 INFO L231 Difference]: Finished difference. Result has 117 places, 116 transitions, 282 flow [2024-11-12 12:29:03,376 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=117, PETRI_TRANSITIONS=116} [2024-11-12 12:29:03,377 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, 5 predicate places. [2024-11-12 12:29:03,377 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 116 transitions, 282 flow [2024-11-12 12:29:03,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:29:03,378 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:29:03,378 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:29:03,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-12 12:29:03,579 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 [2024-11-12 12:29:03,579 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)] === [2024-11-12 12:29:03,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:29:03,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1257755241, now seen corresponding path program 1 times [2024-11-12 12:29:03,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:29:03,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945044388] [2024-11-12 12:29:03,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:03,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:29:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:03,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:03,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:29:03,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945044388] [2024-11-12 12:29:03,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945044388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:29:03,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765345737] [2024-11-12 12:29:03,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:03,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:29:03,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:29:03,701 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) [2024-11-12 12:29:03,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 12:29:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:03,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 12:29:03,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:29:03,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 12:29:03,773 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 12:29:03,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765345737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:29:03,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 12:29:03,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-12 12:29:03,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050168689] [2024-11-12 12:29:03,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:29:03,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:29:03,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:29:03,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:29:03,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:29:03,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 111 [2024-11-12 12:29:03,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 116 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:29:03,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:29:03,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 111 [2024-11-12 12:29:03,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:29:03,932 INFO L124 PetriNetUnfolderBase]: 47/319 cut-off events. [2024-11-12 12:29:03,933 INFO L125 PetriNetUnfolderBase]: For 89/94 co-relation queries the response was YES. [2024-11-12 12:29:03,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 528 conditions, 319 events. 47/319 cut-off events. For 89/94 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1302 event pairs, 21 based on Foata normal form. 3/304 useless extension candidates. Maximal degree in co-relation 451. Up to 86 conditions per place. [2024-11-12 12:29:03,939 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 16 selfloop transitions, 7 changer transitions 1/123 dead transitions. [2024-11-12 12:29:03,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 123 transitions, 354 flow [2024-11-12 12:29:03,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:29:03,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:29:03,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2024-11-12 12:29:03,941 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.933933933933934 [2024-11-12 12:29:03,941 INFO L175 Difference]: Start difference. First operand has 117 places, 116 transitions, 282 flow. Second operand 3 states and 311 transitions. [2024-11-12 12:29:03,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 123 transitions, 354 flow [2024-11-12 12:29:03,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 123 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:29:03,948 INFO L231 Difference]: Finished difference. Result has 119 places, 121 transitions, 326 flow [2024-11-12 12:29:03,949 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=119, PETRI_TRANSITIONS=121} [2024-11-12 12:29:03,949 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, 7 predicate places. [2024-11-12 12:29:03,949 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 121 transitions, 326 flow [2024-11-12 12:29:03,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:29:03,950 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:29:03,950 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:29:03,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 12:29:04,150 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 [2024-11-12 12:29:04,151 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)] === [2024-11-12 12:29:04,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:29:04,153 INFO L85 PathProgramCache]: Analyzing trace with hash -517686751, now seen corresponding path program 1 times [2024-11-12 12:29:04,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:29:04,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356147971] [2024-11-12 12:29:04,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:04,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:29:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:04,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:04,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:29:04,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356147971] [2024-11-12 12:29:04,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356147971] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:29:04,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035594990] [2024-11-12 12:29:04,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:04,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:29:04,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:29:04,309 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) [2024-11-12 12:29:04,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 12:29:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:04,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 12:29:04,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:29:04,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 12:29:04,394 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 12:29:04,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035594990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:29:04,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 12:29:04,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-12 12:29:04,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627994274] [2024-11-12 12:29:04,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:29:04,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:29:04,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:29:04,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:29:04,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:29:04,462 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 111 [2024-11-12 12:29:04,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 121 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:29:04,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:29:04,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 111 [2024-11-12 12:29:04,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:29:04,538 INFO L124 PetriNetUnfolderBase]: 66/386 cut-off events. [2024-11-12 12:29:04,538 INFO L125 PetriNetUnfolderBase]: For 199/207 co-relation queries the response was YES. [2024-11-12 12:29:04,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 729 conditions, 386 events. 66/386 cut-off events. For 199/207 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1772 event pairs, 25 based on Foata normal form. 2/371 useless extension candidates. Maximal degree in co-relation 650. Up to 115 conditions per place. [2024-11-12 12:29:04,544 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 17 selfloop transitions, 7 changer transitions 7/128 dead transitions. [2024-11-12 12:29:04,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 128 transitions, 412 flow [2024-11-12 12:29:04,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:29:04,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:29:04,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2024-11-12 12:29:04,546 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9219219219219219 [2024-11-12 12:29:04,546 INFO L175 Difference]: Start difference. First operand has 119 places, 121 transitions, 326 flow. Second operand 3 states and 307 transitions. [2024-11-12 12:29:04,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 128 transitions, 412 flow [2024-11-12 12:29:04,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 128 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:29:04,551 INFO L231 Difference]: Finished difference. Result has 121 places, 120 transitions, 344 flow [2024-11-12 12:29:04,552 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=121, PETRI_TRANSITIONS=120} [2024-11-12 12:29:04,554 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, 9 predicate places. [2024-11-12 12:29:04,554 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 120 transitions, 344 flow [2024-11-12 12:29:04,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:29:04,554 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:29:04,555 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:29:04,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-12 12:29:04,755 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 [2024-11-12 12:29:04,756 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)] === [2024-11-12 12:29:04,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:29:04,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1062936479, now seen corresponding path program 1 times [2024-11-12 12:29:04,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:29:04,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936395939] [2024-11-12 12:29:04,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:04,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:29:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:04,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:04,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:29:04,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936395939] [2024-11-12 12:29:04,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936395939] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:29:04,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621308552] [2024-11-12 12:29:04,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:04,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:29:04,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:29:04,894 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) [2024-11-12 12:29:04,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 12:29:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:04,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 12:29:04,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:29:05,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:05,017 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:29:05,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:05,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621308552] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:29:05,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:29:05,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-12 12:29:05,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930962453] [2024-11-12 12:29:05,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:29:05,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 12:29:05,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:29:05,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 12:29:05,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-12 12:29:05,126 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2024-11-12 12:29:05,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 120 transitions, 344 flow. Second operand has 10 states, 10 states have (on average 98.1) internal successors, (981), 10 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:29:05,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:29:05,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2024-11-12 12:29:05,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:29:05,290 INFO L124 PetriNetUnfolderBase]: 25/318 cut-off events. [2024-11-12 12:29:05,290 INFO L125 PetriNetUnfolderBase]: For 129/129 co-relation queries the response was YES. [2024-11-12 12:29:05,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 318 events. 25/318 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1306 event pairs, 10 based on Foata normal form. 2/309 useless extension candidates. Maximal degree in co-relation 461. Up to 37 conditions per place. [2024-11-12 12:29:05,291 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 14 selfloop transitions, 9 changer transitions 0/128 dead transitions. [2024-11-12 12:29:05,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 128 transitions, 408 flow [2024-11-12 12:29:05,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 12:29:05,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 12:29:05,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 889 transitions. [2024-11-12 12:29:05,294 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8898898898898899 [2024-11-12 12:29:05,294 INFO L175 Difference]: Start difference. First operand has 121 places, 120 transitions, 344 flow. Second operand 9 states and 889 transitions. [2024-11-12 12:29:05,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 128 transitions, 408 flow [2024-11-12 12:29:05,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 128 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:29:05,302 INFO L231 Difference]: Finished difference. Result has 130 places, 126 transitions, 380 flow [2024-11-12 12:29:05,303 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=380, PETRI_PLACES=130, PETRI_TRANSITIONS=126} [2024-11-12 12:29:05,308 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, 18 predicate places. [2024-11-12 12:29:05,308 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 126 transitions, 380 flow [2024-11-12 12:29:05,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 98.1) internal successors, (981), 10 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:29:05,309 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:29:05,309 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:29:05,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 12:29:05,510 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 [2024-11-12 12:29:05,510 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)] === [2024-11-12 12:29:05,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:29:05,512 INFO L85 PathProgramCache]: Analyzing trace with hash 828941855, now seen corresponding path program 2 times [2024-11-12 12:29:05,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:29:05,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833916445] [2024-11-12 12:29:05,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:05,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:29:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:05,755 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:05,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:29:05,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833916445] [2024-11-12 12:29:05,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833916445] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:29:05,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40893068] [2024-11-12 12:29:05,759 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 12:29:05,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:29:05,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:29:05,761 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) [2024-11-12 12:29:05,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 12:29:05,902 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 12:29:05,902 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 12:29:05,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-12 12:29:05,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:29:05,972 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:05,974 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:29:06,100 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:06,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40893068] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:29:06,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:29:06,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-12 12:29:06,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253976749] [2024-11-12 12:29:06,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:29:06,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-12 12:29:06,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:29:06,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-12 12:29:06,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-12 12:29:06,153 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2024-11-12 12:29:06,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 126 transitions, 380 flow. Second operand has 18 states, 18 states have (on average 98.05555555555556) internal successors, (1765), 18 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:29:06,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:29:06,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2024-11-12 12:29:06,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:29:06,444 INFO L124 PetriNetUnfolderBase]: 25/338 cut-off events. [2024-11-12 12:29:06,444 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-12 12:29:06,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 338 events. 25/338 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1319 event pairs, 10 based on Foata normal form. 4/331 useless extension candidates. Maximal degree in co-relation 442. Up to 37 conditions per place. [2024-11-12 12:29:06,445 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 18 selfloop transitions, 21 changer transitions 0/144 dead transitions. [2024-11-12 12:29:06,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 144 transitions, 554 flow [2024-11-12 12:29:06,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-12 12:29:06,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-12 12:29:06,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2059 transitions. [2024-11-12 12:29:06,453 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8833118833118833 [2024-11-12 12:29:06,453 INFO L175 Difference]: Start difference. First operand has 130 places, 126 transitions, 380 flow. Second operand 21 states and 2059 transitions. [2024-11-12 12:29:06,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 144 transitions, 554 flow [2024-11-12 12:29:06,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 144 transitions, 540 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-12 12:29:06,461 INFO L231 Difference]: Finished difference. Result has 154 places, 139 transitions, 504 flow [2024-11-12 12:29:06,464 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=504, PETRI_PLACES=154, PETRI_TRANSITIONS=139} [2024-11-12 12:29:06,465 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, 42 predicate places. [2024-11-12 12:29:06,466 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 139 transitions, 504 flow [2024-11-12 12:29:06,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 98.05555555555556) internal successors, (1765), 18 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:29:06,467 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:29:06,467 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:29:06,492 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 12:29:06,667 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 [2024-11-12 12:29:06,669 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)] === [2024-11-12 12:29:06,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:29:06,672 INFO L85 PathProgramCache]: Analyzing trace with hash -951523169, now seen corresponding path program 3 times [2024-11-12 12:29:06,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:29:06,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969453632] [2024-11-12 12:29:06,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:06,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:29:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:07,009 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:07,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:29:07,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969453632] [2024-11-12 12:29:07,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969453632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:29:07,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092660788] [2024-11-12 12:29:07,010 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 12:29:07,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:29:07,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:29:07,012 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) [2024-11-12 12:29:07,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-12 12:29:07,103 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-12 12:29:07,103 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 12:29:07,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-12 12:29:07,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:29:07,218 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:07,218 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:29:07,512 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:07,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092660788] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:29:07,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:29:07,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-12 12:29:07,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179841886] [2024-11-12 12:29:07,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:29:07,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-12 12:29:07,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:29:07,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-12 12:29:07,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-12 12:29:07,559 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2024-11-12 12:29:07,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 139 transitions, 504 flow. Second operand has 23 states, 23 states have (on average 98.1304347826087) internal successors, (2257), 23 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:29:07,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:29:07,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2024-11-12 12:29:07,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:29:08,042 INFO L124 PetriNetUnfolderBase]: 25/353 cut-off events. [2024-11-12 12:29:08,042 INFO L125 PetriNetUnfolderBase]: For 211/211 co-relation queries the response was YES. [2024-11-12 12:29:08,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 724 conditions, 353 events. 25/353 cut-off events. For 211/211 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1314 event pairs, 10 based on Foata normal form. 3/345 useless extension candidates. Maximal degree in co-relation 446. Up to 37 conditions per place. [2024-11-12 12:29:08,044 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 21 selfloop transitions, 30 changer transitions 0/156 dead transitions. [2024-11-12 12:29:08,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 156 transitions, 734 flow [2024-11-12 12:29:08,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-12 12:29:08,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-12 12:29:08,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2934 transitions. [2024-11-12 12:29:08,049 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8810810810810811 [2024-11-12 12:29:08,049 INFO L175 Difference]: Start difference. First operand has 154 places, 139 transitions, 504 flow. Second operand 30 states and 2934 transitions. [2024-11-12 12:29:08,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 156 transitions, 734 flow [2024-11-12 12:29:08,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 156 transitions, 704 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-11-12 12:29:08,054 INFO L231 Difference]: Finished difference. Result has 181 places, 149 transitions, 632 flow [2024-11-12 12:29:08,054 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=632, PETRI_PLACES=181, PETRI_TRANSITIONS=149} [2024-11-12 12:29:08,055 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, 69 predicate places. [2024-11-12 12:29:08,057 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 149 transitions, 632 flow [2024-11-12 12:29:08,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 98.1304347826087) internal successors, (2257), 23 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:29:08,058 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:29:08,058 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:29:08,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-12 12:29:08,260 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 [2024-11-12 12:29:08,260 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)] === [2024-11-12 12:29:08,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:29:08,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1766108375, now seen corresponding path program 4 times [2024-11-12 12:29:08,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:29:08,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34154616] [2024-11-12 12:29:08,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:08,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:29:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:29:08,288 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:29:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:29:08,323 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:29:08,323 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:29:08,324 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-11-12 12:29:08,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-12 12:29:08,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-12 12:29:08,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-12 12:29:08,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-12 12:29:08,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-12 12:29:08,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-12 12:29:08,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:29:08,326 INFO L421 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1] [2024-11-12 12:29:08,361 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 12:29:08,362 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 12:29:08,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:29:08 BasicIcfg [2024-11-12 12:29:08,366 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 12:29:08,366 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 12:29:08,366 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 12:29:08,366 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 12:29:08,367 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:29:02" (3/4) ... [2024-11-12 12:29:08,368 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-12 12:29:08,406 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 12:29:08,406 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 12:29:08,407 INFO L158 Benchmark]: Toolchain (without parser) took 7045.76ms. Allocated memory was 195.0MB in the beginning and 249.6MB in the end (delta: 54.5MB). Free memory was 168.1MB in the beginning and 171.2MB in the end (delta: -3.0MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2024-11-12 12:29:08,407 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 136.3MB. Free memory was 103.7MB in the beginning and 103.5MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 12:29:08,407 INFO L158 Benchmark]: CACSL2BoogieTranslator took 462.01ms. Allocated memory is still 195.0MB. Free memory was 167.9MB in the beginning and 145.5MB in the end (delta: 22.5MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2024-11-12 12:29:08,407 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.62ms. Allocated memory is still 195.0MB. Free memory was 145.5MB in the beginning and 143.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 12:29:08,407 INFO L158 Benchmark]: Boogie Preprocessor took 32.39ms. Allocated memory is still 195.0MB. Free memory was 143.4MB in the beginning and 142.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 12:29:08,407 INFO L158 Benchmark]: RCFGBuilder took 365.41ms. Allocated memory is still 195.0MB. Free memory was 142.2MB in the beginning and 124.5MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-12 12:29:08,408 INFO L158 Benchmark]: TraceAbstraction took 6094.86ms. Allocated memory was 195.0MB in the beginning and 249.6MB in the end (delta: 54.5MB). Free memory was 124.2MB in the beginning and 177.4MB in the end (delta: -53.2MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2024-11-12 12:29:08,408 INFO L158 Benchmark]: Witness Printer took 40.16ms. Allocated memory is still 249.6MB. Free memory was 177.4MB in the beginning and 171.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-12 12:29:08,413 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 136.3MB. Free memory was 103.7MB in the beginning and 103.5MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 462.01ms. Allocated memory is still 195.0MB. Free memory was 167.9MB in the beginning and 145.5MB in the end (delta: 22.5MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.62ms. Allocated memory is still 195.0MB. Free memory was 145.5MB in the beginning and 143.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.39ms. Allocated memory is still 195.0MB. Free memory was 143.4MB in the beginning and 142.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 365.41ms. Allocated memory is still 195.0MB. Free memory was 142.2MB in the beginning and 124.5MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6094.86ms. Allocated memory was 195.0MB in the beginning and 249.6MB in the end (delta: 54.5MB). Free memory was 124.2MB in the beginning and 177.4MB in the end (delta: -53.2MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. * Witness Printer took 40.16ms. Allocated memory is still 249.6MB. Free memory was 177.4MB in the beginning and 171.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 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, 130 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: 6.0s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 199 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 106 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 520 IncrementalHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 23 mSDtfsCounter, 520 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 900 GetRequests, 797 SyntacticMatches, 11 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=632occurred 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, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1262 NumberOfCodeBlocks, 1262 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1411 ConstructedInterpolants, 0 QuantifiedInterpolants, 1803 SizeOfPredicates, 23 NumberOfNonLiveVariables, 1134 ConjunctsInSsa, 39 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! [2024-11-12 12:29:08,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE