./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.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 bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:54:36,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:54:36,296 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:54:36,301 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:54:36,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:54:36,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:54:36,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:54:36,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:54:36,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:54:36,332 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:54:36,333 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:54:36,333 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:54:36,334 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:54:36,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:54:36,336 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:54:36,337 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:54:36,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:54:36,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:54:36,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:54:36,337 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:54:36,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:54:36,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:54:36,342 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:54:36,342 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:54:36,342 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:54:36,342 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:54:36,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:54:36,342 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:54:36,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:54:36,343 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:54:36,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:54:36,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:54:36,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:54:36,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:54:36,344 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:54:36,344 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:54:36,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:54:36,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:54:36,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:54:36,344 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:54:36,344 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:54:36,347 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f [2024-10-13 09:54:36,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:54:36,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:54:36,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:54:36,607 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:54:36,610 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:54:36,611 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2024-10-13 09:54:37,997 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:54:38,265 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:54:38,265 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2024-10-13 09:54:38,301 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82f04cc5a/63130bba1ef94b13a657b7b2f401dc74/FLAGe90064ee8 [2024-10-13 09:54:38,587 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82f04cc5a/63130bba1ef94b13a657b7b2f401dc74 [2024-10-13 09:54:38,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:54:38,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:54:38,593 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:54:38,593 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:54:38,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:54:38,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:54:38" (1/1) ... [2024-10-13 09:54:38,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53dcaff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:38, skipping insertion in model container [2024-10-13 09:54:38,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:54:38" (1/1) ... [2024-10-13 09:54:38,670 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:54:39,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:54:39,126 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:54:39,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:54:39,285 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:54:39,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:39 WrapperNode [2024-10-13 09:54:39,286 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:54:39,287 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:54:39,287 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:54:39,287 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:54:39,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:39" (1/1) ... [2024-10-13 09:54:39,332 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:39" (1/1) ... [2024-10-13 09:54:39,375 INFO L138 Inliner]: procedures = 272, calls = 48, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 383 [2024-10-13 09:54:39,378 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:54:39,379 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:54:39,379 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:54:39,379 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:54:39,388 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:39" (1/1) ... [2024-10-13 09:54:39,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:39" (1/1) ... [2024-10-13 09:54:39,398 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:39" (1/1) ... [2024-10-13 09:54:39,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:39" (1/1) ... [2024-10-13 09:54:39,427 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:39" (1/1) ... [2024-10-13 09:54:39,436 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:39" (1/1) ... [2024-10-13 09:54:39,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:39" (1/1) ... [2024-10-13 09:54:39,445 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:39" (1/1) ... [2024-10-13 09:54:39,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:54:39,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:54:39,455 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:54:39,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:54:39,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:39" (1/1) ... [2024-10-13 09:54:39,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:54:39,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:54:39,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 09:54:39,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 09:54:39,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 09:54:39,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 09:54:39,526 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:54:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:54:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:54:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:54:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:54:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 09:54:39,528 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 09:54:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:54:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:54:39,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:54:39,530 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:54:39,647 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:54:39,649 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:54:40,113 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:54:40,113 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:54:40,150 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:54:40,151 INFO L314 CfgBuilder]: Removed 35 assume(true) statements. [2024-10-13 09:54:40,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:54:40 BoogieIcfgContainer [2024-10-13 09:54:40,151 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:54:40,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:54:40,153 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:54:40,156 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:54:40,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:54:38" (1/3) ... [2024-10-13 09:54:40,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7567d035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:54:40, skipping insertion in model container [2024-10-13 09:54:40,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:39" (2/3) ... [2024-10-13 09:54:40,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7567d035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:54:40, skipping insertion in model container [2024-10-13 09:54:40,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:54:40" (3/3) ... [2024-10-13 09:54:40,158 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_71-funloop_racing.i [2024-10-13 09:54:40,180 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:54:40,181 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-10-13 09:54:40,181 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:54:40,297 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-13 09:54:40,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 341 places, 386 transitions, 779 flow [2024-10-13 09:54:40,525 INFO L124 PetriNetUnfolderBase]: 78/620 cut-off events. [2024-10-13 09:54:40,526 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:54:40,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 625 conditions, 620 events. 78/620 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3319 event pairs, 0 based on Foata normal form. 0/510 useless extension candidates. Maximal degree in co-relation 350. Up to 8 conditions per place. [2024-10-13 09:54:40,542 INFO L82 GeneralOperation]: Start removeDead. Operand has 341 places, 386 transitions, 779 flow [2024-10-13 09:54:40,552 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 341 places, 386 transitions, 779 flow [2024-10-13 09:54:40,565 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:54:40,572 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;@55d057a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:54:40,572 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-13 09:54:40,580 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:54:40,581 INFO L124 PetriNetUnfolderBase]: 8/72 cut-off events. [2024-10-13 09:54:40,581 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:54:40,581 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:40,581 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:54:40,582 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:54:40,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:40,586 INFO L85 PathProgramCache]: Analyzing trace with hash 588345036, now seen corresponding path program 1 times [2024-10-13 09:54:40,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:40,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929910916] [2024-10-13 09:54:40,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:40,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:41,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:54:41,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:54:41,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929910916] [2024-10-13 09:54:41,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929910916] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:54:41,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:54:41,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:54:41,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295013421] [2024-10-13 09:54:41,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:54:41,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:54:41,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:54:41,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:54:41,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:54:41,074 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 386 [2024-10-13 09:54:41,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 386 transitions, 779 flow. Second operand has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:54:41,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:54:41,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 386 [2024-10-13 09:54:41,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:54:41,443 INFO L124 PetriNetUnfolderBase]: 161/2107 cut-off events. [2024-10-13 09:54:41,444 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2024-10-13 09:54:41,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2416 conditions, 2107 events. 161/2107 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 17476 event pairs, 120 based on Foata normal form. 381/2303 useless extension candidates. Maximal degree in co-relation 2142. Up to 302 conditions per place. [2024-10-13 09:54:41,456 INFO L140 encePairwiseOnDemand]: 342/386 looper letters, 29 selfloop transitions, 2 changer transitions 0/340 dead transitions. [2024-10-13 09:54:41,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 340 transitions, 749 flow [2024-10-13 09:54:41,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:54:41,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:54:41,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1010 transitions. [2024-10-13 09:54:41,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8721934369602763 [2024-10-13 09:54:41,479 INFO L175 Difference]: Start difference. First operand has 341 places, 386 transitions, 779 flow. Second operand 3 states and 1010 transitions. [2024-10-13 09:54:41,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 340 transitions, 749 flow [2024-10-13 09:54:41,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 340 transitions, 749 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:54:41,493 INFO L231 Difference]: Finished difference. Result has 338 places, 340 transitions, 697 flow [2024-10-13 09:54:41,495 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=685, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=697, PETRI_PLACES=338, PETRI_TRANSITIONS=340} [2024-10-13 09:54:41,501 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -3 predicate places. [2024-10-13 09:54:41,502 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 340 transitions, 697 flow [2024-10-13 09:54:41,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:54:41,503 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:41,503 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:54:41,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:54:41,504 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:54:41,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:41,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1558481092, now seen corresponding path program 1 times [2024-10-13 09:54:41,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:41,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892360666] [2024-10-13 09:54:41,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:41,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:54:41,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:54:41,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892360666] [2024-10-13 09:54:41,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892360666] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:54:41,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95243230] [2024-10-13 09:54:41,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:41,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:54:41,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:54:41,709 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:54:41,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 09:54:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:41,818 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 09:54:41,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:54:41,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:54:41,888 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:54:41,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:54:41,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95243230] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:54:41,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:54:41,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 09:54:41,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506294558] [2024-10-13 09:54:41,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:54:41,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:54:41,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:54:41,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:54:41,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:54:42,025 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 386 [2024-10-13 09:54:42,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 340 transitions, 697 flow. Second operand has 10 states, 10 states have (on average 310.8) internal successors, (3108), 10 states have internal predecessors, (3108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:54:42,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:54:42,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 386 [2024-10-13 09:54:42,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:54:42,474 INFO L124 PetriNetUnfolderBase]: 161/2114 cut-off events. [2024-10-13 09:54:42,474 INFO L125 PetriNetUnfolderBase]: For 9/10 co-relation queries the response was YES. [2024-10-13 09:54:42,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2442 conditions, 2114 events. 161/2114 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 17472 event pairs, 120 based on Foata normal form. 2/1931 useless extension candidates. Maximal degree in co-relation 2406. Up to 302 conditions per place. [2024-10-13 09:54:42,484 INFO L140 encePairwiseOnDemand]: 380/386 looper letters, 33 selfloop transitions, 9 changer transitions 0/348 dead transitions. [2024-10-13 09:54:42,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 348 transitions, 799 flow [2024-10-13 09:54:42,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 09:54:42,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 09:54:42,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2825 transitions. [2024-10-13 09:54:42,489 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8131836499712147 [2024-10-13 09:54:42,489 INFO L175 Difference]: Start difference. First operand has 338 places, 340 transitions, 697 flow. Second operand 9 states and 2825 transitions. [2024-10-13 09:54:42,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 348 transitions, 799 flow [2024-10-13 09:54:42,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 348 transitions, 797 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:54:42,494 INFO L231 Difference]: Finished difference. Result has 348 places, 346 transitions, 745 flow [2024-10-13 09:54:42,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=745, PETRI_PLACES=348, PETRI_TRANSITIONS=346} [2024-10-13 09:54:42,495 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, 7 predicate places. [2024-10-13 09:54:42,495 INFO L471 AbstractCegarLoop]: Abstraction has has 348 places, 346 transitions, 745 flow [2024-10-13 09:54:42,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 310.8) internal successors, (3108), 10 states have internal predecessors, (3108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:54:42,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:42,497 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:54:42,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 09:54:42,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:54:42,698 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:54:42,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:42,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1000115908, now seen corresponding path program 2 times [2024-10-13 09:54:42,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:42,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190157785] [2024-10-13 09:54:42,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:42,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:42,892 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:54:42,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:54:42,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190157785] [2024-10-13 09:54:42,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190157785] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:54:42,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544224030] [2024-10-13 09:54:42,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:54:42,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:54:42,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:54:42,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:54:42,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 09:54:42,962 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:54:42,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:54:42,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-13 09:54:42,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:54:43,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-13 09:54:43,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-13 09:54:43,127 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:54:43,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-13 09:54:43,184 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:54:43,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-13 09:54:43,220 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-13 09:54:43,220 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:54:43,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544224030] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:54:43,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:54:43,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-13 09:54:43,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178902732] [2024-10-13 09:54:43,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:54:43,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:54:43,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:54:43,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:54:43,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-13 09:54:43,569 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 386 [2024-10-13 09:54:43,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 346 transitions, 745 flow. Second operand has 8 states, 8 states have (on average 240.125) internal successors, (1921), 8 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:54:43,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:54:43,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 386 [2024-10-13 09:54:43,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:54:44,526 INFO L124 PetriNetUnfolderBase]: 2262/8751 cut-off events. [2024-10-13 09:54:44,527 INFO L125 PetriNetUnfolderBase]: For 14/17 co-relation queries the response was YES. [2024-10-13 09:54:44,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13069 conditions, 8751 events. 2262/8751 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 88437 event pairs, 1876 based on Foata normal form. 1/7936 useless extension candidates. Maximal degree in co-relation 13004. Up to 4099 conditions per place. [2024-10-13 09:54:44,569 INFO L140 encePairwiseOnDemand]: 374/386 looper letters, 160 selfloop transitions, 11 changer transitions 0/414 dead transitions. [2024-10-13 09:54:44,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 414 transitions, 1223 flow [2024-10-13 09:54:44,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:54:44,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:54:44,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2085 transitions. [2024-10-13 09:54:44,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6751943005181347 [2024-10-13 09:54:44,574 INFO L175 Difference]: Start difference. First operand has 348 places, 346 transitions, 745 flow. Second operand 8 states and 2085 transitions. [2024-10-13 09:54:44,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 414 transitions, 1223 flow [2024-10-13 09:54:44,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 414 transitions, 1217 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-13 09:54:44,581 INFO L231 Difference]: Finished difference. Result has 359 places, 353 transitions, 806 flow [2024-10-13 09:54:44,581 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=806, PETRI_PLACES=359, PETRI_TRANSITIONS=353} [2024-10-13 09:54:44,582 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, 18 predicate places. [2024-10-13 09:54:44,582 INFO L471 AbstractCegarLoop]: Abstraction has has 359 places, 353 transitions, 806 flow [2024-10-13 09:54:44,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 240.125) internal successors, (1921), 8 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:54:44,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:44,584 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:54:44,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 09:54:44,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-13 09:54:44,785 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:54:44,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:44,786 INFO L85 PathProgramCache]: Analyzing trace with hash 154354657, now seen corresponding path program 1 times [2024-10-13 09:54:44,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:44,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524620745] [2024-10-13 09:54:44,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:44,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:45,124 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 09:54:45,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:54:45,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524620745] [2024-10-13 09:54:45,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524620745] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:54:45,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189877361] [2024-10-13 09:54:45,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:45,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:54:45,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:54:45,126 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:54:45,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 09:54:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:45,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 09:54:45,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:54:45,251 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 09:54:45,251 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:54:45,326 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 09:54:45,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189877361] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:54:45,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:54:45,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-13 09:54:45,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954534284] [2024-10-13 09:54:45,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:54:45,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-13 09:54:45,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:54:45,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-13 09:54:45,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-13 09:54:45,353 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 386 [2024-10-13 09:54:45,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 353 transitions, 806 flow. Second operand has 18 states, 18 states have (on average 310.94444444444446) internal successors, (5597), 18 states have internal predecessors, (5597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:54:45,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:54:45,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 386 [2024-10-13 09:54:45,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:54:45,916 INFO L124 PetriNetUnfolderBase]: 176/2095 cut-off events. [2024-10-13 09:54:45,916 INFO L125 PetriNetUnfolderBase]: For 34/39 co-relation queries the response was YES. [2024-10-13 09:54:45,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2563 conditions, 2095 events. 176/2095 cut-off events. For 34/39 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 17558 event pairs, 122 based on Foata normal form. 4/1918 useless extension candidates. Maximal degree in co-relation 2421. Up to 308 conditions per place. [2024-10-13 09:54:45,929 INFO L140 encePairwiseOnDemand]: 380/386 looper letters, 37 selfloop transitions, 21 changer transitions 0/371 dead transitions. [2024-10-13 09:54:45,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 371 transitions, 1010 flow [2024-10-13 09:54:45,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 09:54:45,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-13 09:54:45,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6551 transitions. [2024-10-13 09:54:45,943 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.808166790032075 [2024-10-13 09:54:45,943 INFO L175 Difference]: Start difference. First operand has 359 places, 353 transitions, 806 flow. Second operand 21 states and 6551 transitions. [2024-10-13 09:54:45,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 371 transitions, 1010 flow [2024-10-13 09:54:45,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 371 transitions, 1003 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:54:45,950 INFO L231 Difference]: Finished difference. Result has 382 places, 366 transitions, 929 flow [2024-10-13 09:54:45,951 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=929, PETRI_PLACES=382, PETRI_TRANSITIONS=366} [2024-10-13 09:54:45,952 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, 41 predicate places. [2024-10-13 09:54:45,952 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 366 transitions, 929 flow [2024-10-13 09:54:45,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 310.94444444444446) internal successors, (5597), 18 states have internal predecessors, (5597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:54:45,955 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:45,955 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:54:45,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 09:54:46,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:54:46,161 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:54:46,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:46,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1802942433, now seen corresponding path program 2 times [2024-10-13 09:54:46,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:46,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251846289] [2024-10-13 09:54:46,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:46,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:46,507 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 09:54:46,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:54:46,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251846289] [2024-10-13 09:54:46,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251846289] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:54:46,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295211496] [2024-10-13 09:54:46,508 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:54:46,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:54:46,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:54:46,510 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:54:46,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 09:54:46,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:54:46,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:54:46,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-13 09:54:46,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:54:46,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-13 09:54:46,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 09:54:46,637 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:54:46,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 09:54:46,675 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:54:46,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 09:54:46,711 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-13 09:54:46,711 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:54:46,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295211496] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:54:46,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:54:46,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-13 09:54:46,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829636925] [2024-10-13 09:54:46,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:54:46,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:54:46,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:54:46,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:54:46,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-13 09:54:47,082 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 386 [2024-10-13 09:54:47,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 366 transitions, 929 flow. Second operand has 6 states, 6 states have (on average 242.66666666666666) internal successors, (1456), 6 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:54:47,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:54:47,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 386 [2024-10-13 09:54:47,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:54:48,226 INFO L124 PetriNetUnfolderBase]: 2349/8899 cut-off events. [2024-10-13 09:54:48,227 INFO L125 PetriNetUnfolderBase]: For 368/379 co-relation queries the response was YES. [2024-10-13 09:54:48,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13913 conditions, 8899 events. 2349/8899 cut-off events. For 368/379 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 89763 event pairs, 1564 based on Foata normal form. 33/8154 useless extension candidates. Maximal degree in co-relation 13764. Up to 4257 conditions per place. [2024-10-13 09:54:48,282 INFO L140 encePairwiseOnDemand]: 359/386 looper letters, 133 selfloop transitions, 92 changer transitions 0/482 dead transitions. [2024-10-13 09:54:48,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 482 transitions, 1633 flow [2024-10-13 09:54:48,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:54:48,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:54:48,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1660 transitions. [2024-10-13 09:54:48,287 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7167530224525043 [2024-10-13 09:54:48,287 INFO L175 Difference]: Start difference. First operand has 382 places, 366 transitions, 929 flow. Second operand 6 states and 1660 transitions. [2024-10-13 09:54:48,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 482 transitions, 1633 flow [2024-10-13 09:54:48,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 482 transitions, 1609 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-13 09:54:48,306 INFO L231 Difference]: Finished difference. Result has 386 places, 450 transitions, 1513 flow [2024-10-13 09:54:48,307 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=905, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1513, PETRI_PLACES=386, PETRI_TRANSITIONS=450} [2024-10-13 09:54:48,308 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, 45 predicate places. [2024-10-13 09:54:48,308 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 450 transitions, 1513 flow [2024-10-13 09:54:48,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 242.66666666666666) internal successors, (1456), 6 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:54:48,309 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:48,309 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:54:48,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 09:54:48,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:54:48,510 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:54:48,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:48,511 INFO L85 PathProgramCache]: Analyzing trace with hash 56641769, now seen corresponding path program 1 times [2024-10-13 09:54:48,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:48,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180440871] [2024-10-13 09:54:48,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:48,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:48,785 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-13 09:54:48,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:54:48,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180440871] [2024-10-13 09:54:48,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180440871] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:54:48,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175657955] [2024-10-13 09:54:48,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:48,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:54:48,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:54:48,788 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:54:48,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 09:54:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:48,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 09:54:49,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:54:49,076 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-13 09:54:49,076 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:54:49,239 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-13 09:54:49,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175657955] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:54:49,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:54:49,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-13 09:54:49,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498393364] [2024-10-13 09:54:49,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:54:49,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 09:54:49,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:54:49,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 09:54:49,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-13 09:54:49,269 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 386 [2024-10-13 09:54:49,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 450 transitions, 1513 flow. Second operand has 23 states, 23 states have (on average 311.04347826086956) internal successors, (7154), 23 states have internal predecessors, (7154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:54:49,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:54:49,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 386 [2024-10-13 09:54:49,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:54:49,982 INFO L124 PetriNetUnfolderBase]: 318/2841 cut-off events. [2024-10-13 09:54:49,982 INFO L125 PetriNetUnfolderBase]: For 534/605 co-relation queries the response was YES. [2024-10-13 09:54:49,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4457 conditions, 2841 events. 318/2841 cut-off events. For 534/605 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 25545 event pairs, 120 based on Foata normal form. 3/2621 useless extension candidates. Maximal degree in co-relation 4228. Up to 558 conditions per place. [2024-10-13 09:54:50,003 INFO L140 encePairwiseOnDemand]: 380/386 looper letters, 40 selfloop transitions, 30 changer transitions 0/467 dead transitions. [2024-10-13 09:54:50,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 467 transitions, 1775 flow [2024-10-13 09:54:50,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-13 09:54:50,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-13 09:54:50,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9343 transitions. [2024-10-13 09:54:50,019 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8068221070811744 [2024-10-13 09:54:50,019 INFO L175 Difference]: Start difference. First operand has 386 places, 450 transitions, 1513 flow. Second operand 30 states and 9343 transitions. [2024-10-13 09:54:50,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 467 transitions, 1775 flow [2024-10-13 09:54:50,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 467 transitions, 1757 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-13 09:54:50,033 INFO L231 Difference]: Finished difference. Result has 419 places, 460 transitions, 1647 flow [2024-10-13 09:54:50,034 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=1495, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1647, PETRI_PLACES=419, PETRI_TRANSITIONS=460} [2024-10-13 09:54:50,034 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, 78 predicate places. [2024-10-13 09:54:50,035 INFO L471 AbstractCegarLoop]: Abstraction has has 419 places, 460 transitions, 1647 flow [2024-10-13 09:54:50,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 311.04347826086956) internal successors, (7154), 23 states have internal predecessors, (7154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:54:50,037 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:50,038 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:54:50,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 09:54:50,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:54:50,294 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:54:50,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:50,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1890922663, now seen corresponding path program 2 times [2024-10-13 09:54:50,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:50,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181295354] [2024-10-13 09:54:50,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:50,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:54:50,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:54:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:54:50,362 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:54:50,362 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:54:50,363 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-10-13 09:54:50,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-10-13 09:54:50,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-10-13 09:54:50,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-10-13 09:54:50,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-10-13 09:54:50,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-10-13 09:54:50,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-10-13 09:54:50,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-10-13 09:54:50,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-10-13 09:54:50,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-10-13 09:54:50,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-10-13 09:54:50,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-10-13 09:54:50,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-10-13 09:54:50,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-10-13 09:54:50,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-10-13 09:54:50,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-10-13 09:54:50,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-10-13 09:54:50,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-10-13 09:54:50,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-10-13 09:54:50,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-10-13 09:54:50,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-10-13 09:54:50,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-10-13 09:54:50,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-10-13 09:54:50,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 09:54:50,368 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-10-13 09:54:50,369 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 09:54:50,369 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-13 09:54:50,409 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-13 09:54:50,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 442 places, 501 transitions, 1018 flow [2024-10-13 09:54:50,500 INFO L124 PetriNetUnfolderBase]: 126/997 cut-off events. [2024-10-13 09:54:50,501 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-13 09:54:50,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1009 conditions, 997 events. 126/997 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 6089 event pairs, 0 based on Foata normal form. 0/820 useless extension candidates. Maximal degree in co-relation 622. Up to 12 conditions per place. [2024-10-13 09:54:50,516 INFO L82 GeneralOperation]: Start removeDead. Operand has 442 places, 501 transitions, 1018 flow [2024-10-13 09:54:50,522 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 442 places, 501 transitions, 1018 flow [2024-10-13 09:54:50,523 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:54:50,523 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;@55d057a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:54:50,523 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-10-13 09:54:50,527 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:54:50,527 INFO L124 PetriNetUnfolderBase]: 8/72 cut-off events. [2024-10-13 09:54:50,527 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:54:50,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:50,528 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:54:50,528 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-13 09:54:50,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:50,528 INFO L85 PathProgramCache]: Analyzing trace with hash 627595116, now seen corresponding path program 1 times [2024-10-13 09:54:50,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:50,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623550395] [2024-10-13 09:54:50,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:50,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:50,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:54:50,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:54:50,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623550395] [2024-10-13 09:54:50,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623550395] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:54:50,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:54:50,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:54:50,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751179939] [2024-10-13 09:54:50,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:54:50,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:54:50,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:54:50,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:54:50,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:54:50,576 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 501 [2024-10-13 09:54:50,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 501 transitions, 1018 flow. Second operand has 3 states, 3 states have (on average 404.3333333333333) internal successors, (1213), 3 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:54:50,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:54:50,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 501 [2024-10-13 09:54:50,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:54:53,138 INFO L124 PetriNetUnfolderBase]: 2887/20384 cut-off events. [2024-10-13 09:54:53,138 INFO L125 PetriNetUnfolderBase]: For 149/153 co-relation queries the response was YES. [2024-10-13 09:54:53,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24640 conditions, 20384 events. 2887/20384 cut-off events. For 149/153 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 274336 event pairs, 2376 based on Foata normal form. 5241/23926 useless extension candidates. Maximal degree in co-relation 22020. Up to 4183 conditions per place. [2024-10-13 09:54:53,278 INFO L140 encePairwiseOnDemand]: 444/501 looper letters, 39 selfloop transitions, 2 changer transitions 0/440 dead transitions. [2024-10-13 09:54:53,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 440 transitions, 978 flow [2024-10-13 09:54:53,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:54:53,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:54:53,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1306 transitions. [2024-10-13 09:54:53,281 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8689288090485695 [2024-10-13 09:54:53,281 INFO L175 Difference]: Start difference. First operand has 442 places, 501 transitions, 1018 flow. Second operand 3 states and 1306 transitions. [2024-10-13 09:54:53,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 440 transitions, 978 flow [2024-10-13 09:54:53,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 440 transitions, 978 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:54:53,286 INFO L231 Difference]: Finished difference. Result has 437 places, 440 transitions, 906 flow [2024-10-13 09:54:53,287 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=906, PETRI_PLACES=437, PETRI_TRANSITIONS=440} [2024-10-13 09:54:53,289 INFO L277 CegarLoopForPetriNet]: 442 programPoint places, -5 predicate places. [2024-10-13 09:54:53,289 INFO L471 AbstractCegarLoop]: Abstraction has has 437 places, 440 transitions, 906 flow [2024-10-13 09:54:53,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 404.3333333333333) internal successors, (1213), 3 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:54:53,289 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:53,289 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:54:53,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 09:54:53,290 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-13 09:54:53,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:53,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1201911983, now seen corresponding path program 1 times [2024-10-13 09:54:53,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:53,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125732033] [2024-10-13 09:54:53,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:53,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:53,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:54:53,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:54:53,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125732033] [2024-10-13 09:54:53,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125732033] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:54:53,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916468592] [2024-10-13 09:54:53,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:53,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:54:53,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:54:53,345 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:54:53,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 09:54:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:53,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 09:54:53,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:54:53,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:54:53,432 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:54:53,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:54:53,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916468592] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:54:53,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:54:53,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 09:54:53,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086781489] [2024-10-13 09:54:53,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:54:53,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:54:53,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:54:53,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:54:53,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:54:53,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 501 [2024-10-13 09:54:53,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 440 transitions, 906 flow. Second operand has 10 states, 10 states have (on average 401.8) internal successors, (4018), 10 states have internal predecessors, (4018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:54:53,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:54:53,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 501 [2024-10-13 09:54:53,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:54:56,266 INFO L124 PetriNetUnfolderBase]: 2887/20391 cut-off events. [2024-10-13 09:54:56,267 INFO L125 PetriNetUnfolderBase]: For 154/158 co-relation queries the response was YES. [2024-10-13 09:54:56,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24666 conditions, 20391 events. 2887/20391 cut-off events. For 154/158 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 274515 event pairs, 2376 based on Foata normal form. 2/18694 useless extension candidates. Maximal degree in co-relation 24629. Up to 4183 conditions per place. [2024-10-13 09:54:56,488 INFO L140 encePairwiseOnDemand]: 495/501 looper letters, 43 selfloop transitions, 9 changer transitions 0/448 dead transitions. [2024-10-13 09:54:56,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 448 transitions, 1028 flow [2024-10-13 09:54:56,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 09:54:56,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 09:54:56,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3654 transitions. [2024-10-13 09:54:56,503 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.810379241516966 [2024-10-13 09:54:56,506 INFO L175 Difference]: Start difference. First operand has 437 places, 440 transitions, 906 flow. Second operand 9 states and 3654 transitions. [2024-10-13 09:54:56,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 448 transitions, 1028 flow [2024-10-13 09:54:56,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 448 transitions, 1026 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:54:56,685 INFO L231 Difference]: Finished difference. Result has 447 places, 446 transitions, 954 flow [2024-10-13 09:54:56,690 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=954, PETRI_PLACES=447, PETRI_TRANSITIONS=446} [2024-10-13 09:54:56,691 INFO L277 CegarLoopForPetriNet]: 442 programPoint places, 5 predicate places. [2024-10-13 09:54:56,691 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 446 transitions, 954 flow [2024-10-13 09:54:56,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 401.8) internal successors, (4018), 10 states have internal predecessors, (4018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:54:56,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:56,697 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:54:56,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-13 09:54:56,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:54:56,900 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-13 09:54:56,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:56,902 INFO L85 PathProgramCache]: Analyzing trace with hash -722168783, now seen corresponding path program 2 times [2024-10-13 09:54:56,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:56,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349639364] [2024-10-13 09:54:56,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:56,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:57,002 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:54:57,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:54:57,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349639364] [2024-10-13 09:54:57,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349639364] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:54:57,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440438314] [2024-10-13 09:54:57,003 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:54:57,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:54:57,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:54:57,005 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:54:57,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 09:54:57,088 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:54:57,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:54:57,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-13 09:54:57,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:54:57,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-13 09:54:57,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-13 09:54:57,188 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:54:57,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-13 09:54:57,228 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:54:57,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-13 09:54:57,257 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-13 09:54:57,257 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:54:57,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440438314] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:54:57,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:54:57,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-13 09:54:57,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970951936] [2024-10-13 09:54:57,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:54:57,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:54:57,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:54:57,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:54:57,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-13 09:54:57,643 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 501 [2024-10-13 09:54:57,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 446 transitions, 954 flow. Second operand has 8 states, 8 states have (on average 311.125) internal successors, (2489), 8 states have internal predecessors, (2489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:54:57,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:54:57,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 501 [2024-10-13 09:54:57,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand