./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 4a390ef5 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-dev-4a390ef-m [2024-10-24 15:28:17,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:28:17,803 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:28:17,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:28:17,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:28:17,826 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:28:17,827 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:28:17,827 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:28:17,827 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:28:17,828 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:28:17,828 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:28:17,828 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:28:17,829 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:28:17,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:28:17,829 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:28:17,830 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:28:17,830 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:28:17,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:28:17,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:28:17,830 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:28:17,831 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:28:17,831 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:28:17,831 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:28:17,832 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:28:17,832 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:28:17,832 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:28:17,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:28:17,832 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:28:17,833 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:28:17,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:28:17,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:28:17,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:28:17,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:28:17,833 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:28:17,834 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:28:17,834 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:28:17,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:28:17,834 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:28:17,834 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:28:17,834 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:28:17,835 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:28:17,835 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f [2024-10-24 15:28:18,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:28:18,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:28:18,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:28:18,095 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:28:18,095 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:28:18,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2024-10-24 15:28:19,451 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:28:19,670 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:28:19,671 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2024-10-24 15:28:19,694 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ab25ac86/cf99168ff049497bad8d2bc823b864b3/FLAG3eb1d12ee [2024-10-24 15:28:19,712 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ab25ac86/cf99168ff049497bad8d2bc823b864b3 [2024-10-24 15:28:19,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:28:19,715 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:28:19,716 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:28:19,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:28:19,721 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:28:19,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:28:19" (1/1) ... [2024-10-24 15:28:19,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b66448d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:19, skipping insertion in model container [2024-10-24 15:28:19,723 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:28:19" (1/1) ... [2024-10-24 15:28:19,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:28:20,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:28:20,177 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:28:20,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:28:20,287 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:28:20,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:20 WrapperNode [2024-10-24 15:28:20,288 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:28:20,289 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:28:20,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:28:20,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:28:20,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:20" (1/1) ... [2024-10-24 15:28:20,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:20" (1/1) ... [2024-10-24 15:28:20,348 INFO L138 Inliner]: procedures = 272, calls = 48, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 383 [2024-10-24 15:28:20,349 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:28:20,349 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:28:20,349 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:28:20,349 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:28:20,359 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:20" (1/1) ... [2024-10-24 15:28:20,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:20" (1/1) ... [2024-10-24 15:28:20,371 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:20" (1/1) ... [2024-10-24 15:28:20,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:20" (1/1) ... [2024-10-24 15:28:20,394 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:20" (1/1) ... [2024-10-24 15:28:20,406 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:20" (1/1) ... [2024-10-24 15:28:20,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:20" (1/1) ... [2024-10-24 15:28:20,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:20" (1/1) ... [2024-10-24 15:28:20,422 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:28:20,423 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:28:20,423 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:28:20,423 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:28:20,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:20" (1/1) ... [2024-10-24 15:28:20,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:28:20,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:20,455 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) [2024-10-24 15:28:20,459 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 [2024-10-24 15:28:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 15:28:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 15:28:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:28:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:28:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:28:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:28:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:28:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 15:28:20,498 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 15:28:20,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:28:20,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:28:20,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:28:20,500 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:28:20,627 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:28:20,629 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:28:21,170 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:28:21,170 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:28:21,216 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:28:21,216 INFO L314 CfgBuilder]: Removed 35 assume(true) statements. [2024-10-24 15:28:21,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:28:21 BoogieIcfgContainer [2024-10-24 15:28:21,216 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:28:21,217 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:28:21,217 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:28:21,221 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:28:21,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:28:19" (1/3) ... [2024-10-24 15:28:21,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8d78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:28:21, skipping insertion in model container [2024-10-24 15:28:21,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:20" (2/3) ... [2024-10-24 15:28:21,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8d78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:28:21, skipping insertion in model container [2024-10-24 15:28:21,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:28:21" (3/3) ... [2024-10-24 15:28:21,224 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_71-funloop_racing.i [2024-10-24 15:28:21,240 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:28:21,240 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-10-24 15:28:21,240 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:28:21,305 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 15:28:21,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 341 places, 386 transitions, 779 flow [2024-10-24 15:28:21,519 INFO L124 PetriNetUnfolderBase]: 78/620 cut-off events. [2024-10-24 15:28:21,519 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:28:21,528 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. [2024-10-24 15:28:21,529 INFO L82 GeneralOperation]: Start removeDead. Operand has 341 places, 386 transitions, 779 flow [2024-10-24 15:28:21,540 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 341 places, 386 transitions, 779 flow [2024-10-24 15:28:21,552 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:28:21,559 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;@376b65bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:28:21,560 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-24 15:28:21,568 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:28:21,568 INFO L124 PetriNetUnfolderBase]: 8/72 cut-off events. [2024-10-24 15:28:21,568 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:28:21,568 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:21,569 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] [2024-10-24 15:28:21,570 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)] === [2024-10-24 15:28:21,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:21,574 INFO L85 PathProgramCache]: Analyzing trace with hash 588345036, now seen corresponding path program 1 times [2024-10-24 15:28:21,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:21,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385663106] [2024-10-24 15:28:21,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:21,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:21,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:21,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:21,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385663106] [2024-10-24 15:28:21,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385663106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:21,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:28:21,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:28:21,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387079351] [2024-10-24 15:28:21,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:21,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:28:21,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:21,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:28:21,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:28:21,926 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 386 [2024-10-24 15:28:21,935 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) [2024-10-24 15:28:21,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:21,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 386 [2024-10-24 15:28:21,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:22,326 INFO L124 PetriNetUnfolderBase]: 161/2107 cut-off events. [2024-10-24 15:28:22,326 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2024-10-24 15:28:22,336 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. [2024-10-24 15:28:22,342 INFO L140 encePairwiseOnDemand]: 342/386 looper letters, 29 selfloop transitions, 2 changer transitions 0/340 dead transitions. [2024-10-24 15:28:22,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 340 transitions, 749 flow [2024-10-24 15:28:22,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:28:22,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:28:22,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1010 transitions. [2024-10-24 15:28:22,360 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8721934369602763 [2024-10-24 15:28:22,362 INFO L175 Difference]: Start difference. First operand has 341 places, 386 transitions, 779 flow. Second operand 3 states and 1010 transitions. [2024-10-24 15:28:22,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 340 transitions, 749 flow [2024-10-24 15:28:22,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 340 transitions, 749 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:28:22,374 INFO L231 Difference]: Finished difference. Result has 338 places, 340 transitions, 697 flow [2024-10-24 15:28:22,376 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} [2024-10-24 15:28:22,381 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -3 predicate places. [2024-10-24 15:28:22,381 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 340 transitions, 697 flow [2024-10-24 15:28:22,382 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) [2024-10-24 15:28:22,382 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:22,382 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] [2024-10-24 15:28:22,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:28:22,382 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)] === [2024-10-24 15:28:22,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:22,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1558481092, now seen corresponding path program 1 times [2024-10-24 15:28:22,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:22,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003951991] [2024-10-24 15:28:22,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:22,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:22,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:22,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:22,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003951991] [2024-10-24 15:28:22,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003951991] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:22,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625735838] [2024-10-24 15:28:22,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:22,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:22,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:22,547 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) [2024-10-24 15:28:22,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 15:28:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:22,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:28:22,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:22,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:22,682 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:28:22,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:22,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625735838] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:28:22,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:28:22,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-24 15:28:22,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252696997] [2024-10-24 15:28:22,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:28:22,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 15:28:22,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:22,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 15:28:22,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 15:28:22,760 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 386 [2024-10-24 15:28:22,763 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) [2024-10-24 15:28:22,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:22,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 386 [2024-10-24 15:28:22,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:23,131 INFO L124 PetriNetUnfolderBase]: 161/2114 cut-off events. [2024-10-24 15:28:23,131 INFO L125 PetriNetUnfolderBase]: For 9/10 co-relation queries the response was YES. [2024-10-24 15:28:23,136 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. [2024-10-24 15:28:23,141 INFO L140 encePairwiseOnDemand]: 380/386 looper letters, 33 selfloop transitions, 9 changer transitions 0/348 dead transitions. [2024-10-24 15:28:23,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 348 transitions, 799 flow [2024-10-24 15:28:23,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 15:28:23,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 15:28:23,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2825 transitions. [2024-10-24 15:28:23,145 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8131836499712147 [2024-10-24 15:28:23,145 INFO L175 Difference]: Start difference. First operand has 338 places, 340 transitions, 697 flow. Second operand 9 states and 2825 transitions. [2024-10-24 15:28:23,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 348 transitions, 799 flow [2024-10-24 15:28:23,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 348 transitions, 797 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:28:23,151 INFO L231 Difference]: Finished difference. Result has 348 places, 346 transitions, 745 flow [2024-10-24 15:28:23,151 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} [2024-10-24 15:28:23,152 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, 7 predicate places. [2024-10-24 15:28:23,152 INFO L471 AbstractCegarLoop]: Abstraction has has 348 places, 346 transitions, 745 flow [2024-10-24 15:28:23,153 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) [2024-10-24 15:28:23,154 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:23,154 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] [2024-10-24 15:28:23,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 15:28:23,354 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 [2024-10-24 15:28:23,355 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)] === [2024-10-24 15:28:23,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:23,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1000115908, now seen corresponding path program 2 times [2024-10-24 15:28:23,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:23,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067863291] [2024-10-24 15:28:23,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:23,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:23,506 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:23,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:23,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067863291] [2024-10-24 15:28:23,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067863291] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:23,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019649130] [2024-10-24 15:28:23,508 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:28:23,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:23,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:23,510 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) [2024-10-24 15:28:23,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 15:28:23,589 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:28:23,589 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:28:23,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-24 15:28:23,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:23,670 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 [2024-10-24 15:28:23,702 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 [2024-10-24 15:28:23,757 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:23,758 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 [2024-10-24 15:28:23,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:23,800 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 [2024-10-24 15:28:23,834 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 15:28:23,834 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:28:23,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019649130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:23,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:28:23,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-24 15:28:23,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385824295] [2024-10-24 15:28:23,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:23,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 15:28:23,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:23,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 15:28:23,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-24 15:28:24,149 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 386 [2024-10-24 15:28:24,151 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) [2024-10-24 15:28:24,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:24,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 386 [2024-10-24 15:28:24,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:25,055 INFO L124 PetriNetUnfolderBase]: 2262/8751 cut-off events. [2024-10-24 15:28:25,055 INFO L125 PetriNetUnfolderBase]: For 14/17 co-relation queries the response was YES. [2024-10-24 15:28:25,070 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. [2024-10-24 15:28:25,095 INFO L140 encePairwiseOnDemand]: 374/386 looper letters, 160 selfloop transitions, 11 changer transitions 0/414 dead transitions. [2024-10-24 15:28:25,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 414 transitions, 1223 flow [2024-10-24 15:28:25,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 15:28:25,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 15:28:25,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2085 transitions. [2024-10-24 15:28:25,099 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6751943005181347 [2024-10-24 15:28:25,099 INFO L175 Difference]: Start difference. First operand has 348 places, 346 transitions, 745 flow. Second operand 8 states and 2085 transitions. [2024-10-24 15:28:25,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 414 transitions, 1223 flow [2024-10-24 15:28:25,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 414 transitions, 1217 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-24 15:28:25,105 INFO L231 Difference]: Finished difference. Result has 359 places, 353 transitions, 806 flow [2024-10-24 15:28:25,106 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} [2024-10-24 15:28:25,107 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, 18 predicate places. [2024-10-24 15:28:25,107 INFO L471 AbstractCegarLoop]: Abstraction has has 359 places, 353 transitions, 806 flow [2024-10-24 15:28:25,108 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) [2024-10-24 15:28:25,108 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:25,108 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] [2024-10-24 15:28:25,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 15:28:25,312 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 [2024-10-24 15:28:25,313 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)] === [2024-10-24 15:28:25,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:25,314 INFO L85 PathProgramCache]: Analyzing trace with hash 154354657, now seen corresponding path program 1 times [2024-10-24 15:28:25,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:25,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890374811] [2024-10-24 15:28:25,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:25,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:25,489 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 15:28:25,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:25,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890374811] [2024-10-24 15:28:25,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890374811] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:25,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115644716] [2024-10-24 15:28:25,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:25,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:25,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:25,493 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) [2024-10-24 15:28:25,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 15:28:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:25,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 15:28:25,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:25,611 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 15:28:25,611 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:28:25,732 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 15:28:25,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115644716] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:28:25,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:28:25,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-24 15:28:25,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104257978] [2024-10-24 15:28:25,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:28:25,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 15:28:25,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:25,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 15:28:25,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-24 15:28:25,759 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 386 [2024-10-24 15:28:25,765 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) [2024-10-24 15:28:25,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:25,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 386 [2024-10-24 15:28:25,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:26,236 INFO L124 PetriNetUnfolderBase]: 176/2095 cut-off events. [2024-10-24 15:28:26,237 INFO L125 PetriNetUnfolderBase]: For 34/39 co-relation queries the response was YES. [2024-10-24 15:28:26,243 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. [2024-10-24 15:28:26,248 INFO L140 encePairwiseOnDemand]: 380/386 looper letters, 37 selfloop transitions, 21 changer transitions 0/371 dead transitions. [2024-10-24 15:28:26,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 371 transitions, 1010 flow [2024-10-24 15:28:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 15:28:26,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-24 15:28:26,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6551 transitions. [2024-10-24 15:28:26,260 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.808166790032075 [2024-10-24 15:28:26,260 INFO L175 Difference]: Start difference. First operand has 359 places, 353 transitions, 806 flow. Second operand 21 states and 6551 transitions. [2024-10-24 15:28:26,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 371 transitions, 1010 flow [2024-10-24 15:28:26,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 371 transitions, 1003 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:28:26,267 INFO L231 Difference]: Finished difference. Result has 382 places, 366 transitions, 929 flow [2024-10-24 15:28:26,268 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} [2024-10-24 15:28:26,269 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, 41 predicate places. [2024-10-24 15:28:26,269 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 366 transitions, 929 flow [2024-10-24 15:28:26,272 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) [2024-10-24 15:28:26,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:26,272 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] [2024-10-24 15:28:26,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 15:28:26,472 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 [2024-10-24 15:28:26,473 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)] === [2024-10-24 15:28:26,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:26,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1802942433, now seen corresponding path program 2 times [2024-10-24 15:28:26,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:26,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441799645] [2024-10-24 15:28:26,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:26,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:26,783 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 15:28:26,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:26,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441799645] [2024-10-24 15:28:26,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441799645] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:26,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723531457] [2024-10-24 15:28:26,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:28:26,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:26,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:26,786 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) [2024-10-24 15:28:26,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 15:28:26,866 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:28:26,867 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:28:26,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-24 15:28:26,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:26,882 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 [2024-10-24 15:28:26,899 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 [2024-10-24 15:28:26,924 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:26,924 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 [2024-10-24 15:28:26,959 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:26,960 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 [2024-10-24 15:28:26,995 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-24 15:28:26,996 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:28:26,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723531457] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:26,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:28:26,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-24 15:28:26,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428528947] [2024-10-24 15:28:26,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:26,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:28:26,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:26,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:28:26,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-24 15:28:27,277 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 386 [2024-10-24 15:28:27,279 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) [2024-10-24 15:28:27,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:27,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 386 [2024-10-24 15:28:27,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:28,385 INFO L124 PetriNetUnfolderBase]: 2349/8899 cut-off events. [2024-10-24 15:28:28,385 INFO L125 PetriNetUnfolderBase]: For 368/379 co-relation queries the response was YES. [2024-10-24 15:28:28,409 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. [2024-10-24 15:28:28,435 INFO L140 encePairwiseOnDemand]: 359/386 looper letters, 133 selfloop transitions, 92 changer transitions 0/482 dead transitions. [2024-10-24 15:28:28,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 482 transitions, 1633 flow [2024-10-24 15:28:28,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:28:28,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:28:28,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1660 transitions. [2024-10-24 15:28:28,439 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7167530224525043 [2024-10-24 15:28:28,439 INFO L175 Difference]: Start difference. First operand has 382 places, 366 transitions, 929 flow. Second operand 6 states and 1660 transitions. [2024-10-24 15:28:28,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 482 transitions, 1633 flow [2024-10-24 15:28:28,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 482 transitions, 1609 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-24 15:28:28,451 INFO L231 Difference]: Finished difference. Result has 386 places, 450 transitions, 1513 flow [2024-10-24 15:28:28,452 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} [2024-10-24 15:28:28,453 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, 45 predicate places. [2024-10-24 15:28:28,453 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 450 transitions, 1513 flow [2024-10-24 15:28:28,454 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) [2024-10-24 15:28:28,454 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:28,454 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] [2024-10-24 15:28:28,468 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 15:28:28,658 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 [2024-10-24 15:28:28,659 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)] === [2024-10-24 15:28:28,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:28,660 INFO L85 PathProgramCache]: Analyzing trace with hash 56641769, now seen corresponding path program 1 times [2024-10-24 15:28:28,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:28,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737211281] [2024-10-24 15:28:28,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:28,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:28,939 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 15:28:28,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:28,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737211281] [2024-10-24 15:28:28,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737211281] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:28,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216580780] [2024-10-24 15:28:28,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:28,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:28,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:28,942 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) [2024-10-24 15:28:28,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 15:28:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:29,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 15:28:29,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:29,079 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 15:28:29,079 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:28:29,245 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 15:28:29,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216580780] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:28:29,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:28:29,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-24 15:28:29,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241278901] [2024-10-24 15:28:29,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:28:29,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 15:28:29,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:29,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 15:28:29,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-24 15:28:29,326 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 386 [2024-10-24 15:28:29,333 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) [2024-10-24 15:28:29,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:29,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 386 [2024-10-24 15:28:29,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:29,972 INFO L124 PetriNetUnfolderBase]: 318/2841 cut-off events. [2024-10-24 15:28:29,973 INFO L125 PetriNetUnfolderBase]: For 534/605 co-relation queries the response was YES. [2024-10-24 15:28:29,985 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. [2024-10-24 15:28:29,993 INFO L140 encePairwiseOnDemand]: 380/386 looper letters, 40 selfloop transitions, 30 changer transitions 0/467 dead transitions. [2024-10-24 15:28:29,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 467 transitions, 1775 flow [2024-10-24 15:28:29,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-24 15:28:29,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-24 15:28:30,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9343 transitions. [2024-10-24 15:28:30,010 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8068221070811744 [2024-10-24 15:28:30,010 INFO L175 Difference]: Start difference. First operand has 386 places, 450 transitions, 1513 flow. Second operand 30 states and 9343 transitions. [2024-10-24 15:28:30,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 467 transitions, 1775 flow [2024-10-24 15:28:30,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 467 transitions, 1757 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-24 15:28:30,023 INFO L231 Difference]: Finished difference. Result has 419 places, 460 transitions, 1647 flow [2024-10-24 15:28:30,024 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} [2024-10-24 15:28:30,025 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, 78 predicate places. [2024-10-24 15:28:30,025 INFO L471 AbstractCegarLoop]: Abstraction has has 419 places, 460 transitions, 1647 flow [2024-10-24 15:28:30,027 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) [2024-10-24 15:28:30,027 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:30,028 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] [2024-10-24 15:28:30,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 15:28:30,228 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 [2024-10-24 15:28:30,229 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)] === [2024-10-24 15:28:30,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:30,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1890922663, now seen corresponding path program 2 times [2024-10-24 15:28:30,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:30,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825333203] [2024-10-24 15:28:30,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:30,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:28:30,253 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 15:28:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:28:30,290 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 15:28:30,291 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 15:28:30,291 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-10-24 15:28:30,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-10-24 15:28:30,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-10-24 15:28:30,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-10-24 15:28:30,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-10-24 15:28:30,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-10-24 15:28:30,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-10-24 15:28:30,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-10-24 15:28:30,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-10-24 15:28:30,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-10-24 15:28:30,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-10-24 15:28:30,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-10-24 15:28:30,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-10-24 15:28:30,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-10-24 15:28:30,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-10-24 15:28:30,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-10-24 15:28:30,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-10-24 15:28:30,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-10-24 15:28:30,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-10-24 15:28:30,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-10-24 15:28:30,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-10-24 15:28:30,297 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-10-24 15:28:30,297 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-10-24 15:28:30,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 15:28:30,297 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-10-24 15:28:30,299 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 15:28:30,299 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-24 15:28:30,349 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 15:28:30,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 442 places, 501 transitions, 1018 flow [2024-10-24 15:28:30,504 INFO L124 PetriNetUnfolderBase]: 126/997 cut-off events. [2024-10-24 15:28:30,504 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-24 15:28:30,515 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. [2024-10-24 15:28:30,516 INFO L82 GeneralOperation]: Start removeDead. Operand has 442 places, 501 transitions, 1018 flow [2024-10-24 15:28:30,522 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 442 places, 501 transitions, 1018 flow [2024-10-24 15:28:30,523 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:28:30,524 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;@376b65bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:28:30,524 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-10-24 15:28:30,527 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:28:30,527 INFO L124 PetriNetUnfolderBase]: 8/72 cut-off events. [2024-10-24 15:28:30,527 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:28:30,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:30,527 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] [2024-10-24 15:28:30,528 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)] === [2024-10-24 15:28:30,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:30,528 INFO L85 PathProgramCache]: Analyzing trace with hash 627595116, now seen corresponding path program 1 times [2024-10-24 15:28:30,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:30,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707431046] [2024-10-24 15:28:30,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:30,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:30,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:30,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:30,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707431046] [2024-10-24 15:28:30,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707431046] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:30,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:28:30,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:28:30,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664056586] [2024-10-24 15:28:30,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:30,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:28:30,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:30,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:28:30,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:28:30,564 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 501 [2024-10-24 15:28:30,565 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) [2024-10-24 15:28:30,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:30,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 501 [2024-10-24 15:28:30,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:32,993 INFO L124 PetriNetUnfolderBase]: 2887/20384 cut-off events. [2024-10-24 15:28:32,993 INFO L125 PetriNetUnfolderBase]: For 149/153 co-relation queries the response was YES. [2024-10-24 15:28:33,071 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. [2024-10-24 15:28:33,144 INFO L140 encePairwiseOnDemand]: 444/501 looper letters, 39 selfloop transitions, 2 changer transitions 0/440 dead transitions. [2024-10-24 15:28:33,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 440 transitions, 978 flow [2024-10-24 15:28:33,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:28:33,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:28:33,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1306 transitions. [2024-10-24 15:28:33,148 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8689288090485695 [2024-10-24 15:28:33,148 INFO L175 Difference]: Start difference. First operand has 442 places, 501 transitions, 1018 flow. Second operand 3 states and 1306 transitions. [2024-10-24 15:28:33,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 440 transitions, 978 flow [2024-10-24 15:28:33,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 440 transitions, 978 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:28:33,155 INFO L231 Difference]: Finished difference. Result has 437 places, 440 transitions, 906 flow [2024-10-24 15:28:33,156 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} [2024-10-24 15:28:33,157 INFO L277 CegarLoopForPetriNet]: 442 programPoint places, -5 predicate places. [2024-10-24 15:28:33,157 INFO L471 AbstractCegarLoop]: Abstraction has has 437 places, 440 transitions, 906 flow [2024-10-24 15:28:33,157 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) [2024-10-24 15:28:33,157 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:33,158 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] [2024-10-24 15:28:33,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 15:28:33,158 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)] === [2024-10-24 15:28:33,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:33,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1201911983, now seen corresponding path program 1 times [2024-10-24 15:28:33,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:33,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506071719] [2024-10-24 15:28:33,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:33,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:33,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:33,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:33,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506071719] [2024-10-24 15:28:33,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506071719] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:33,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653210772] [2024-10-24 15:28:33,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:33,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:33,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:33,212 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) [2024-10-24 15:28:33,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 15:28:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:33,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:28:33,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:33,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:33,313 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:28:33,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:33,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653210772] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:28:33,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:28:33,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-24 15:28:33,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383181189] [2024-10-24 15:28:33,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:28:33,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 15:28:33,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:33,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 15:28:33,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 15:28:33,359 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 501 [2024-10-24 15:28:33,363 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) [2024-10-24 15:28:33,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:33,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 501 [2024-10-24 15:28:33,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:35,830 INFO L124 PetriNetUnfolderBase]: 2887/20391 cut-off events. [2024-10-24 15:28:35,830 INFO L125 PetriNetUnfolderBase]: For 154/158 co-relation queries the response was YES. [2024-10-24 15:28:35,937 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. [2024-10-24 15:28:36,159 INFO L140 encePairwiseOnDemand]: 495/501 looper letters, 43 selfloop transitions, 9 changer transitions 0/448 dead transitions. [2024-10-24 15:28:36,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 448 transitions, 1028 flow [2024-10-24 15:28:36,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 15:28:36,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 15:28:36,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3654 transitions. [2024-10-24 15:28:36,165 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.810379241516966 [2024-10-24 15:28:36,166 INFO L175 Difference]: Start difference. First operand has 437 places, 440 transitions, 906 flow. Second operand 9 states and 3654 transitions. [2024-10-24 15:28:36,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 448 transitions, 1028 flow [2024-10-24 15:28:36,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 448 transitions, 1026 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:28:36,172 INFO L231 Difference]: Finished difference. Result has 447 places, 446 transitions, 954 flow [2024-10-24 15:28:36,174 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} [2024-10-24 15:28:36,176 INFO L277 CegarLoopForPetriNet]: 442 programPoint places, 5 predicate places. [2024-10-24 15:28:36,176 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 446 transitions, 954 flow [2024-10-24 15:28:36,179 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) [2024-10-24 15:28:36,180 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:36,180 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] [2024-10-24 15:28:36,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 15:28:36,384 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 [2024-10-24 15:28:36,385 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)] === [2024-10-24 15:28:36,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:36,386 INFO L85 PathProgramCache]: Analyzing trace with hash -722168783, now seen corresponding path program 2 times [2024-10-24 15:28:36,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:36,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042115122] [2024-10-24 15:28:36,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:36,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:36,471 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:36,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:36,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042115122] [2024-10-24 15:28:36,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042115122] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:36,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833973951] [2024-10-24 15:28:36,472 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:28:36,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:36,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:36,473 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) [2024-10-24 15:28:36,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 15:28:36,546 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:28:36,547 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:28:36,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-24 15:28:36,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:36,582 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 [2024-10-24 15:28:36,603 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 [2024-10-24 15:28:36,631 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:36,632 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 [2024-10-24 15:28:36,663 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:36,663 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 [2024-10-24 15:28:36,687 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 15:28:36,687 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:28:36,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833973951] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:36,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:28:36,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-24 15:28:36,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225093024] [2024-10-24 15:28:36,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:36,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 15:28:36,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:36,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 15:28:36,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-24 15:28:37,032 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 501 [2024-10-24 15:28:37,034 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) [2024-10-24 15:28:37,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:37,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 501 [2024-10-24 15:28:37,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand